US2194757A - Finishing machine - Google Patents

Description

March 26, 1940. E. o. KLAAS ET AL FINISHING MACHINE Filed Sept. 10', 1938 4 Sheets-Sheet 1 m m 2mm N A M WM 0 NQH W WW E. o. KLAAs n m. 57

FINISHING MACHINE Filed Sept. l0, 1938 4 Sheets-Sheet 2 IN VENTORS [oh/11v 0. Kums ATTORNEY.

March 26, 1940. E. o. KLAAS 51' m. 2,194,757

V FINISHING MACHINE Filed Sept. 10, 1938 4 Sheets-Sheet 3 INVENTQRS fowl/v 0. KLAAJ BY [uwaoo H MEYER:

March 26; 1940- E; o. KLAAS ET AL FINISHING MACHINE Filed Sept. 10, 1938 4 Sheets-Sheet 4 maH m WW a,

FIIIHHHHH HIIIIIIIL! F ILPITIIU Www ha Patented Mar. 26, 1940 land, Ohio, assignors to The Klaas Machine and Manufacturing Company, a corporation of Ohio Application September 10, 1938, Serial No. 229,364

Claims. (01. 51-412) Our invention relates in general to a mechanism for finishing the peripheral edges of battery top members and the apertures therein and more particularly to a mechanism of the class described which is completely automatic in operation.

In the manufacture of the hard rubber covers of battery boxes, it is necessary to finish the peripheral edges and the apertures-therein which are rough and irregular as they are removed from the molds in which they are formed. Ehe present invention will be describedfwith reference to a machine for finishing the hardrubber covers of battery boxes, but it is to be clearly understood that theinvention is not limited to this specific 7 3d application and when the Words battery top members are used in this application, it'isto be clearly understood that these words are not limited to hard rubber covers for battery boxes but includes any article having marginal edges 0 to be finished.

An object of our invention is the provision of a mechanism of the class described which will finish the peripheral edges of battery top members and the apertures therein without any manual work, except for the feeding of the battery top members into the machine ormechanism.

Another object of our invention is the pro vision of guiding the battery top members through the mechanism by means of resilient engaging members which engage the lateral slop ing sides of the battery top members.

to Another object of our invention is the provision of moving the battery top members through the machine at spaced distances between the same by 35 reciprocating or actuating feed means which, upon the forward motion of the reciprocation, engages and moves the battery top members forward to the next successively advanced positions and which, upon the terminationof the rearward movement of'the reciprocation; engages the next rearwardly positioned battery top members in readiness for the next successive advancement.

Another object of our invention is the provision of finishing the apertures in the battery top mem- 45 hers as the battery top members remain stationary during the rearward movement of the reciprocation of the feed means.

Another object of our invention is the provision of coordinating the feed means which moves the battery top members progressively through the finishing mechanism and the aperture finishing means to givecomplete automatic performance throughout the entire travel of the battery top member through our mechanism.

Another object of our invention is the provision of fluid controlled arrangements for c0-ordinat ing the several finishing operations performed by our machine in which the fluid controlled arrangements are governed by a plurality of cam actuating members driven from a single shaft.

Another object of our invention is the provision of positioning the grinding wheels at a slight angle with reference tothetravel of the battery top members, particularly with the entrance edge of the grinding wheels closer together than the exit edge of the grinding wheels so that freedom of travel is provided to the battery top members as they pass between the grinding wheels.

Another object of our invention is the provision of adjustment means to cause the battery top members to move substantially square between the grinding means to insure that they move. in a true right angular line. Another object of our invention is the provision of adjustment means to accommodate battery top members of different dimensions and configurations.

Other objects and a fuller understanding of our invention may be had-by referringto the following description and claims, taken in conjunction with the accompanying drawings in which;

Figure 1 represents a diagrammatic illustration of our invention and particularly shows the travel taken by the battery top members and the finishing actions performed thereon as they travel from the entrance end ofour mechanism tothe exit end, Where the battery top members are completely processed; 1

Figure 2 is a diagrammatic illustration of the fluid control arrangements to co-ordinate the several processing operations performed upon battery top members as they travel through our mechanism;

Figure 3 is a fragmentaryyiew showing the Figure 6 is a plan view of the second reciproeating feed means of our mechanism which feeds the battery top members lengthwise through a second pair of spaced grinding means to grind the longitudinaledges of the batterytop members, and shows in addition diagrammatically the aperture finishing means for finishing the apertures in the battery top members as they are progressively advanced to the second grinding means;

Figure 7 is a cross-sectional view taken along the line 1-! of Figure 6;

Figure 8 is a cross-sectional view taken along the line 88 of Figure, 6;

Figure 9 is a fragmentary plan view of a portion of Figure 6, and illustrating particularly the arrangement of a trap or a resilient latch which prevents interference between the first members, as they are moved progressively and intermittently along and towards the second grinding means;

Figure 11 is a front elevational view of the aperture finishing means shown in Figure 10;

Figure 12 is a top plan view of a battery top member which may be finished by passing it through our mechanism, and

Figure 13 is a longitudinal cross-sectional view taken along the line i3l3 of Figure 12, and shows by dash-and-dot lines the position of the aperature finishing means for processing the aperatures in the battery top members. I

A typical battery top member is shown in Figure 12, and in the molding of these battery top members, the peripheral edges and the aperatures therein, as they are taken out of the molds, in which they are formed, have rough or irregular edges which must be finished. In the finishing of the peripheral edges and the apertures in the battery top members by means of our machine, the battery top members are first fed into the machine broadwi'se and thence in the first reciprocating feed means where the end edges are ground as they progressively pass at spaced distances between the first pair of spaced grinding means. After this the battery top members are delivered to a second reciprocating feed means, which is positioned substantially at right angles to the first reciprocating feed means, where the battery top members are progressively advanced at spaced distances between the second pair of grinding means where the longitudinal edges of the battery top members are ground to a smooth finish. As the battery top members are progressively and intermittently advanced to the second pair of grinding means, the peripheral edges of the apertures are processed by means of grinding ing tools which move in-and-out in timed sequence. The positions occupied by the grinding tools for smoothing the edges of the apertures in the battery top members are illustrated by the dash-and-dot lines in Figure 13. Our mechanism is adapted to finish battery top members of a large variety and of different sizes and of different aperture arrangements. In certain battery top members, the apertures are provided with lead inserts which must be processed, and in these battery top members the working tools are designed to have a working end to give the proper inside and outside finish to the lead inserts.

With particular reference to Figure l; diagrammatically illustrating the several operatively associated parts to perform the finishing operations, our invention comprises generally an advanced feed means 2%, which delivers the battery top members broadwise to the first reciprocating feed means 2! where the battery top members are advanced progressively at spaced distances between the same through the first pair of spaced grinding means or wheels 22 and 23 after which the battery top members are delivered to the second reciprocating feed means 2:1 which is positioned substantially at right angles to the first reciprocating feed means 2i. The second reciprocating feed means 124! progressively advances the battery top members longitudinally or length wise to the second pair of spaced grinding means or wheels 25 and 26. The apertures in the battery top members, as they are progressively ad vanced along by the second reciprocating feed means 26, are processed from above by means of the aperture finishing means 2'? and are processed from below by means of the aperture finishing means, 28.

The advanced feed means 25! may be of any particular construction and comprises generally a bed arrangement 35 having side members 32 and 33 between which an endless conveyor operates around spaced sprocket wheels 3% and 35. The endless conveyor is provided with transversely arranged feed members 35 which engage the rearward longitudinal side edges of the battery top members and move them at spaced dis-- tances to the first reciprocation feed means 2!. The endless conveyor having the transverse feed members 36 may be driven by means of a shaft 31 having a sprocket wheel 38 driven by a suitable chain from a sprocket wheel 39 actuated by a motor-driven gear reducer 443. As. the battery top members approach the first reciprocaticn feed means 25, they are-guided between converging guide members 4 and 45 which direct the battery top members to the first reciprocating feed means 2!. A narrow space is provided etween the end of the advanced feed means 29 and the reciprocating feed means 2! to afiord room for the transversely arranged feed members 36 to pass therebetween. Positioned in the narrow space is a spring trap door 4-5 which may be biased downwardly to allow the transversely arranged feed member 36 to pass therethrough.

Just as soon as the transverse arranged feed member 36 passes therethrough, the spring trap door 45 swings upwardly and provides a smooth fiat surface for the battery top members to move upon the first reciprocating feed means 2!.

The first reciprocating feed means it! comprises generally a base upon which the battery top members may slide, and fcur sets of longitudinally spaced, hingedly mounted engaging means ,52 which engage the rearward longitudinal side of the battery top members and progressively move them forward broadwise between the two grinding means and 23. As illustrated diagrammatically, the first reciprocating feed means 2i is actuated by a two-way piston mechanism M, in which the dash-an(.i-dot line fi l indicates the actuating mechanism between the piston 41 and the first reciprocating feed means 2E. The two-way piston mechanism 41 is governed by a fiuid control valve 48 which is in turn governed by a pilot valve 55 actuated by a cam 5i mounted upon the shaft 31. The motor driven fiuid pump 49 provides a source of fluid under pressure for actuating the fluid parts of our mechanism.

The second reciprocating feed means 24 is actuated by a two-way piston mechanism 56 which anism 55.

agrammatically, the four longitudinally spaced engaging means til are actuated by. suitable connections beneath the'base t2 and the four longitudinally spaced engaging means 65 are actuated by suitable connections positioned above the base 62. The actuating connections or mechanism for operating the longitudinal engaging means 60 and t! is indicated'by the dash-and-dot line 64 which leads from the two-way piston mech- As the engaging means 52 of the first reciprocating means Zl', and the engaging means 66 and 5! of the second reciprocating means it, are actuated, they engage the battery top members upon their forward movement and ward side at the termination of the stroke. ,As thebattery top membersremain stationary during the rearward movement of the reciprocation of the second feed means 24, the apertures in the battery top members are processed from above and from below.' The processing of the apertures in the battery top members from. above is performeddby three spaced grinding orwork tools M; 75, and i6 carriedby' a. suitable head indicated by the""dashand-dot line 61 having threeindividual sub-cross-heads. The work or grinding tools 3'4 #5, and 16 are respectively and individually actuated by electric 'motors TI, 72,

and 5-3 which are separately carried by the subthree sub crossaheads are each adjustable in three dimensions, The set screw adjustments 68 are arranged to actuate the individual sub-cross heads endwise in ahoiizontal plane, the set screw adjustments 5d are, arranged to move the individual sub-crosaheads broadwise in a horizontal plane, and. the adjustment set screws H! are arranged to move the individual sub--crossheads in a vertical plane. The purpose of the individualized adjustments of the sub-cross-hea'ds is to accommodate the positioning of the grinding or work tools M, '55, and it with reference to the apertures of the battery top members of anypar ticular arrangement The entire cross-head 61 is arranged to be actuated by a fulcrum member 80 which in turn is actuated by a two-way piston mechanism 8! h 3 is connected td a dash pa BS indicated by the referencecharacter 85. The actuating structure for operating the entire cross head 6! by means of the fulcrum member 80 is indicated by the reference character I 41. 1

The processing of the apertures upon the underneath side of the battery top members is periormed'by the work or grindingtools 99,100 and Jill carried respectively, by the" three sub-crossheads oftheentire cross-head arrangement indicated by the reference character 92. The work or grinding tools 99, Hill and i! are respectively actuated by the electric motors 96, 91 and 98 carried respectively by the three sub-cross-heads of the entire cross-head $2. Each of the sub-crossheads is arranged to be adjustable inthree dimensions. The sub-cross-heads may be individually adjusted edgewise in a horizontal plane by means of the adjustment screws 95 and may be adjusted broadwise in a horizontal plane by the adjustment screws Stand may be adjusted vertically by the adjustment screws 93 'Forthe battery top member shown in Figures 12 and 13, only the middle finishing tool Hit! is used underneath. The entire movement of the complete cross-head S2 is actuated by the end 86 of the fulcrum member fill through means of 'a structural arrangement indicated generally 'by the reference character M8. The movement of the fulcrum member 636 is arranged to be slow and restrictedas the aperture finishing means 21 and 28 are brought towards the battery top memhere. The movement, however, is unrestricted as the aperture finishing means zi and 23 are moved away from the battery top'members. The restricted movement ofthe fulcrum member 80 is governed bya one-way restriction valve 88 com heated in fluid communication to the piston mechanism 8!. This one-way restriction valve 88 permits fluid to flow restrictedly to the piston mechanism 8| as the aperture finishing means 2! and 28 are'moved towards the battery top members for the finishing process, but allows the fluid to flow unrestrictedly as the aperture finishing means 2! and 28 are moved from the battery top member after the finishing processes are performed. The cam M controlling the pilot valve 83 governs the inand out movement or the aperture finishing means 21 and 28 in such sequence that the aperture feeding means 2! and 28 are actuated toward the battery top members for processing the apertures therein and away from the battery top members after the process is finished during the interval that thesecond reciprocating feed means moves rearwardly and when the batterytop members are stationary. In other words, the operation or timing between the movements of the first andjsecond reciprocating feeding means and the aperture finishing means 2! and 28 are governed by the arrangementof the shape of the cams 59 and 84 actuated by the shaft 31.

The diagrammatic illustration of the fluid con- 1 to the control valve 48. The delivery of the fluid through the pipe I09 to the control valve 48 causes the valve arrangements therein to shift and force the fluid-on the lefthand end of the control valve 48 to flow out through the pipe I ID to the pilot valve 50 and thence through port arrangements therein the fluid is discharged or drained to the motor driven pump through the pipe H3. Actuation of the control valve assembly within the control valve 48 to the left, causes fluid under pressure to be delivered through the feed pipe IRS to the control valve 48 and thence through arrangements of port connections therein the fluid under pressure is delivered through the pipe II2 to the rear of the cylinder of the piston mechanism 57. The delivery of the fluid through the pipe I I2 under pressure to the piston mechanism 4! forces the piston rod H6 to the right for actuating the first feed reciproeating means M. The actuation of the piston to the right forces the fluidon the right-hand end of the piston mechanism 41 therefrom through the pipe III to the control valve 48, and from there through the port connections therein,

the discharged fluid flows through the pipes It? and I I3 to the motor driven pump 49. The actuation of the piston mechanism 56 through the control valve 4'! and the pilot 48, and the actuation of the piston mechanism through the control valve 82 and the pilot valve 83 is the same as that described with reference to the piston mechanism l! controlled by the control valve 48 and the pilot valve 55. Therefore, the governing of the several parts of our invention is controlled hydraulically by means of the cams 5I 59 and 84 driven by a common shaft.

A somewhat detailed arrangement of the first reciprocating feed means 2| is illustrated in Figures 3, 4 and 5, in which the piston mechanism 41 is arranged through the piston rod I IE to actuate reciprocally the feeding mechanism forprogressively advancing the battery top members at spaced distances broadwise through the two grinding wheels 22 and 23. As illustrated, the first reciprocating feed means 2| may be suitably carried by means of a support or table II! upon which are mounted at spaced distances twoinverted U-shaped brackets H8 and H9. The two spaced U-shaped brackets H8 and H9 are connected to the support III by the cap screws I20 and are arranged to carry the mechanism for carrying out the reciprocating movement. Mounted upon the two inverted U-shaped brackets H8 and III are four slide bearing brackets I 2| through which longitudinal slide rods I22 arranged parallel to each other, are adapted to reciprocate. Attached to the left-hand end portion of the two parallel arranged slide rods I22, is a cross-head I23 which is actuated by the piston rod I I6. The piston rod IIS may be connected to the cross-head I23 in any suitable fashion such as illustrated by the threaded end, and the cross-head I23 may be connected to the two parallel slide rods by the cap screws I24. A cushioning pad I25, preferably made from a block of rubber, may be connected to the outermost end of the piston rod I I6 to take care of any shock as the piston rod H5 is moved to the right against the piston mechanism 41. The pad I25 encircles the rod I I 5 and is securely fastened to the rod II 6 by any suitable securing means. The position of the pad I25 on the rod II6 is such that the pad I25 strikes theend of the cylinder of the piston mechanism 41 upon the movement of the rod IIE the fluid is caused to flow through the pipe I09 tothe right in Figure 3 and the illustrated nut holds the pad I25 from slipping ofi the end of the rod. The shock is absorbed when the resilient head I25 engages the end of the cylinder of the piston mechanism 41. The outward movement of the piston rod II6 may be cushioned at its termination by means of a cushioning pad I27 suitably mounted upon the top of the inverted U-shaped member H3. The pad I21 is likewise preferably made of a block of rubber and metal confining sides and is secured in position, the confining metal sides being bolted or otherwise secured to the top of the inverted U-shaped member I IS. The position of the pad I21 is such that the end of the rod IIS and illustrated nut upon its end strikes the rubber block of the pad I21 upon the movement of the rod H6 to the left in Figure 3. In other words, both ends of the stroke of the piston IIB are cushioned by means of the rubber pads I25 and I21. Positioned parallel to the two longitudinal slide rods I22 at the inside thereof, are two parallel arranged actuating members I29 which are arranged to hingedly carry the four engaging means 52 that slide over and engage the rearward side of the battery top members as they are pushed forward between the grinding means 22 and 23. The engaging means 52 may be hingedly connected to the lower edge of the actuating members I29, see Figures 4 and 5. The left-hand end portion of the actuating members I29 are slidably connectedto the cross-head I23 by means of the slotted bolt connection I30. The

Y right-hand end of the two actuating members I29 are likewise slidably connected by means of the slotted bolt connections I3I to the ends of the two slide rods I22. The actuating members I 29 are arranged to be adjusted longitudinally in order that each set of the engaging members 52 may push the battery box covers between the grinding wheels 22 and 23 in a square or true alignment. The longitudinal adjustment of the actuating members I 29 may be taken care of in any suitable manner and as illustrated, longitudinal slots are provided in the actuating members I29 at their left-hand end portions so that by unloosening the nut arrangement I30, the actuating members I29 may be moved longitudinally thereon. Also, the right-hand end portion of the actuating members I29 are slotted where the cap screws I3! extend therethrough, so that when the cap screws I3I are loosened, the longitudinal members may be moved.

longitudinally by actuating the adjustment screws I32. After the adjustment screws I32 are set, the cap screws I3I and the bolts I39 may be tightened to set the longitudinal actuating members I29 in a fixed relationship. The requirement for providing longitudinal adjustment of the actuating members I29 arises from the fact that the covers for battery boxes are not always the same on both ends, such for example, one end may be provided with a boss which means that the engaging means 52 attached to the longitudinal actuating member I23 on that particular side must be shifted to accommodate the movement of the battery top members between the grinding means 22 and 23 in a square or true alignment. As illustrated best in Figure 4, the base 53 upon which the battery top members slide may be carried upon a cross member I35 connected between the upright portion of the U-shaped support brackets I I8 and I I 9.

The piston mechanism 4! is mounted on top of a longitudinal plate I26 supported upon each end by the supporting brackets IIBv and H9.

As the battery top members are moved forwardly, they are guided between two transversely 15 1 arranged resilient "guideinembers I33 which are in turncarried by side brackets I34 suitably connected to the inside of the uprightportion'of the inverted U-shaped brackets IIB and H9. The

resilient sidemembers I33 may be constructed of relatively thin spring steel which extend fromone end of the first reciprocating feed means to the other and whichresiliently engage the sloping ends of the battery top members as they are moved broadwise between the grinding wheels 22 and 23.

The first reciprocating feed means 2I is co-ordi-- nated with the advanced feed means in such manner that the rearwardmost engaging means 52 is in its most rearward position and in readiness to engage the rearward edge of the battery top members as they are delivered by the spaced transversely arranged feedmembers 38. I

The forwardmost engaging. means 52 pushes the. battery top members in alignment with the rearwardmost engaging members 60 0f the secandreciprocating feedmeans, which'is shown somewhat in detail in Figures 5, 6, 7, 8 and 9.

As shown in Figure 5, a spring means 14 positioned above the battery top members is arranged to hold thev members down against the base 52 as they are transferredfromthe first reciprocating feedxmeans 2i to the second recip'rocating feed means 24. A springstop member I95 is-ernployed to keep the spring means from springing down too far and interfering with the next forwardly moving battery top member. The four engaging'means 60 :are arranged to be hingedly carried by a longitudinal member I38 which in turn is actuated .by the piston rod IS'I driven by the piston mechanism 56. The four engaging means 60 maybe hingedlylconnected to the longitudinal member I and are each. arranged to extend upwardly through the longitudinal central slot. 63.,in the base E52. and actuate the battery top. members progressivelyforward, The reason that the four engaging means Bil are positioned underneath of the base $2 is that the space abovethe battery I top membersmust'be free'for theaccess of the grinding or work tools 14, i5 and 'lvfi whichfinish theapertures in the top ofth'e battery top members. The four, engaging means 6|: are hingedly carried by a longitudinal actuating overhead member M2 which is carried at one end. byan inverted U-shaped bracket I4l reciprocally actu' ated by the slide rods I39 which are connected to the cross-head I38 actuated by the piston rod As illustrated, theslide rods I39 which :the base 62, and progressively moves the battery top member toward andqthrough thegrinding or finishing means 25 and26. which grindthe longitudinal side .edges members. i

The co-ordinating of the .reciprocating'zmotions of the first reciprocating feed means 2| and the second reciprocating feed meanstis such that the reciprocating motion of the first feed means is forwardmost when the .;.reciprocating were? motion. of the second feed means is rearward Therefore, the forwardmost engaging. means 52 are pushing the battery box covers in resilient engaging devices I49,

. under and keeps them in moved forward1y. I

of ,the battery, .top

most.

alignment with. the four engaging means-60 of thev second reciprocating feed meansat the time that the rearwardmost engaging means 60 is movingrearwardly under thebattery box cover which is pushed forwardly by the forwardmo'st] engaging means In order to prevent the rearwarumost engaging means 80 from interfering with the battery box cover just being pushed forward by the engaging means 52, we provide atrap slide member I44 under which the rearwardmost engaging member 60 slides upon' its rearwarumovement of the reciprocating sliding movement The trap slide member I44 com? 4 prises briefly a plate member hingedly connected sothat as the rearwardmost member 60moves forward itmay cause the trap platemember' I44 to swing to the left to permit the engaging means til to move forwardly in the'longitudinally-central opening 63. Upon the return stroke of the engagingmember Gt, it is caused to slide underv neath of the trap slide member I44 and prevent any interference with the battery topmember Whichhas just been pushed forward by the en:

gagingjmeans 52. As illustrated in Figures 4:, 7' and 8, the base upon which the battery top inembers slides is arranged to have an intermediate portion cutaway to provide aflelearance; so that in case" any projection extends below the periph- -eral edges of the battery box covers theymay clear within the space provided in the base.

Figure 6, the battery top. members are guided between a longitudinal slide rail I45 and spaced As illustrated,

the engaging devices I49 comprise :a resilient spring which constrains the battery box covers over against the opposite guide rail I45} .The

resilient engaging devices, I49 ,arepositioned at,

spaced distances so. that they engage the bat- .te'ry. box covers when-they are in the forward-" most position of their reciprocal movement and constrain them to 1 remain in the forwardmost g position while the. engaging means and GI arebeing moved rearwardly to make another; engagement with the succeeding battery box covers. I The guide rail I45.is spaced upwardly from the base' 6 2, so thatthe peripheral edge. on" one side of the batterylbox covers extends there-- 50 alignment "as they are shown iiiFigur su o the finishing't means 2? and 28 for the apertures in the battery.

box covers may be mounted upona' pivotal struc tu-re having the rearwardmost portions pivotally connected to a shaft I46. The fulcrum member .Silis positioned between the two aperf ture finishing means 21 and 28 and isarranged to move them in and out from thebattery top covers which are being processed. Thestructural features formoving the aperture 1i.tiishingmeaz1s 2i and Zt'up and down; by the movement or! the fulcrum member 80, may be of any suitable construction and as shown in Figure 11-, a frame like construction Hii may be connected to the piston rod of the piston mechanism 85 and,'car-.

ried up-Ito'the cross-header 61. By avsimilar construction the crosshead 92 for the aperture.

finishing means .28, mounted underneath the base SZ, may be carried by a suitableconstrue tion indicated generally by the reference character I Therefore, asthe fulcrum is oper-q atedzin; a clockwise direction in Figure 11, the

' aperture finishing means 2! and28; are brought 7 toward the battery top members and as the fulcrum membertfi is operated in a counter-clockwise direction the'aperture finishing means 21 and 28 are moved from the work or battery top inembers.

Our invention may be setiin operation by pushing the starter switch 95!! which energizes the motor'for operating the fluid pump 49. After this the starter switch ii! for energizing the motor for driving the sprocket'wheel 38 and the shaft 3?, may be pushed for starting the operation of the advanced feed means'ztl, the first reciprocating feed means 2!, the second reciprocating feed means 24', and the aperture finishing means 21 and 28. When our machine is set in. operation the operator then places the battery top covers tobe processed in the advanced feeding means it, so that the battery top covers are delivered one by one in spaced relation by the endless chain to the first reciprocating means 21 where the-battery top covers are processed as hereinbefore described.

It is arranged to have an interlocking arrangement between the switch 'i5l and I50 in order to prevent the motor at from being started unless the fluid operated pump '49 is first in operation to-make certain that the continuous processwill be-co-ordinated and prevent the piling up of battery box covers in advance of the first I reciprocating means 2! in the event that the fluid operated pump id is not in operation- Although we have described our invention with. "a certain degree of particularity, it is understood that the present disclosure has been made only by way of example and t'hat numerous changes in the details of construction and the combination and arrangement of parts may be resorted to without departing from the spirit and the scope of the invention as hereinafter claimed.

We. claim as. our invention:

1. A mechanism for finishing the peripheral edges ofbattery top members and theapertures therein, said battery top members having sloping side .and. end portions, comprising, in combina tion, base means upon which the battery top members may slide, oppositelyspaced resilient engaging ..members arranged above the base means for resiliently engaging the opposite sloping-end portions of the battery top members and causing; the end edges to extend laterally outside of said resilient members," grinding means spaced on opposite sides of the resilient engaging to the first base means, means for causing the forwardmost of said spaced engaging means'to deliver said battery top members to the second base means, resilient means for guiding the battery top members along the second base means,

second grinding means spaced on opposite sides of thesecond base means to grind the opposite side edges of the battery top members, second feed means to engage the battery top members and move same forward and lengthwise between v saidsecond grinding means to grind the opposite side edges of the battery top members, said second. feed means having spaced engaging ing the two feed means and the aperture finishing means.

"2. A mechanism for finishing the peripheral edges of battery top members and the apertures therein, said battery top members having sloping side and end portions, comprising, in combination, base means upon which the battery top members may slide, oppositely spaced resilient engaging members arranged above the base means forresiliently engaging the opposite sloping end portions of the battery top members and causing the end edges to extend laterally outside of said resilient members, grinding means spaced on opposite sides of the resilient engaging members to grind the opposite end edges of the battery top members, feed means to engage the battery top members and move same forward and broadwise between said grinding means to grind the o-pposit'e'end edges of said battery top members, said feed means having spaced engaging means for successively and intermittently moving the battery top members forward at spaced distances between same, second base means positioned substantially at a right angle to the first base means, means for causing the forwardmost of said spaced engaging means to deliver said battery top members to the second base means, resilient means for guiding the battery top members along the second base means, second grinding means spaced on opposite sides of the second base means to termittently moving the battery top members forward at'sp-aced distances between same, aperture finishing means movably positioned above and below the second base means for finishing the aperturesin the battery top members as said battery. top members-are intermittently moved forward, fluid means for actuating the two feed means and the aperture finishing means, and

coordinating means for governing the fluid means.

3. A mechanism for finishing the peripheral edges of battery top members and the apertures therein, said battery top members having sloping sidev and end portions, comprising, in combination, base means upon which the battery top members may slide, oppositely spaced resilient engaging members arranged above the base means for resiliently engaging the opposite sloping end portions of the battery top members and causing the end edges to extend laterally outside of said resilient members, grinding means spaced on opposite sides of the resilient engaging members, to grind the opposite end edges of the battery top members, feed means to engage the battery top members and move same forward and broadwise-between said grinding means to grind the opposite end edges of said battery top memhere, said feed means having spaced engaging means for engaging, the battery top members, reciprocating means for actuatingthe spaced engaging means and causing the spaced engaging means upon the forward movement of the rebase means, resilient means for guiding the bat-.

tery top members along the second base means, second grinding means spaced on opposite sides of the second base means to grind the opposite side edges of the battery top members, second feed means to engage the battery top members and move, same forward and lengthwise between said second grinding means to grind the opposite side edges of the battery top members, said second feed means having second spaced engaging means for engaging the battery top members, reciprocating means for actuating the second spaced engaging means'and causing the second spaced engaging means upon the forward movement of the reciprocation to move the battery top members forward to the next successively advanced positions and causing the second spaced engaging means upon the termination of the rearward movement of the reciprocation to engage the next rearwardly positioned battery top members in readiness for the next successive advancement, means for finishing the apertures and causing the end edgesto extend laterally outside of said resilient members, grinding means spaced on opposite sides of the resilient engaging members, to grind the opposite end edges of the battery top members, feed means to engage the battery top members and move same forward and broadwise between said grinding means to grind the opposite end edges of said battery top members, said feed means having spaced engaging means for engaging the battery top members, reciprocating means for actuating the spacedengaging means and causing the spaced engaging means upon the forward movement 'thenext rearwardly positioned battery top members in readiness for the next successive advancement, second base means positioned substantially at a right angle to the first base means, means for causing the forwardmost of said spaced engaging means to deliver said battery top members to the second base means, resilient means for guiding the battery top members along the second base means, second grinding means spaced on opposite sides of the second base means to grind the opposite side edges of the battery top members, second feed means to engage the battery top members and move same forward and lengthwise between said second grinding means to grind the opposite side edges of the battery top members, said second feed means having second spaced engaging means for engaging the battery top members, reciprocating meansfor actuating the second spaced engaging means and causing the second spaced engaging means upon the forward movement of the reciprocation to move the battery top members forward to the next successively advanced positions and causing the second spaced engaging means upon the termination of the rearward movement of the reciprocation to engage the next rearwardly positioned battery top members in readi-' ness forthe next successive advancement, means for finishing the apertures in the battery top members as said battery top members remain stationary during the rearward movement of the reciprocation of said second feed means, and

means for co-ordinating the two feed means and the aperture finishing means, and advanced feed means for delivering the battery top members at spaced distances between same to the first feed means.

5. A mechanism for finishing the peripheral edges of battery top members and the apertures therein, said battery top members having sloping side and end portions, comprising, in combination, base means upon which the battery top members may slide, oppositely spaced resilient engaging members arranged above the base means for resiliently engaging the opposite sloping end portions of the battery top members and causing the end edges to'extend laterally outside of said resilient members, ri ding means spaced on opposite sides of the resilient engaging members, to grind the opposite end edges of the battery top members, feed means to engage the battery top members and move same forward and broadwise between said grinding means to grind the opposite end edges of said battery topmembers, said feed means having spaced engaging means for engaging the battery top members, reciprocating means for actuating the spaced engaging means and causing the spaced engaging means upon the forward movement of the reciprocation to move the battery top members forward to the next successively advanced positions and causing the spaced engaging means uponthe termination of the rearward movement of the reciprocation to engage the next rearwardly positioned battery top members in readiness for the next successive advancement, second base means positioned substantially at a right angle to the first base means, means for caustopmembersandmove same forward and lengthwise between said second grinding means to grind the opposite side edges of the battery top members, said second feed meanshaving second spaced engaging means for engaging the battery top members, reciprocating means for actuating the second spaced engaging means and causing the second spaced engaging means upon the forward movement of the reciprocation to move the battery top members forward to the next successively advanced positions and causing the second spaced engaging means upon the termination of the rearward movement of the reciprocation to engage the next rearwardly positioned battery top members in readiness for the next successive advancement, means for causing the rearwardmost of the spaced engaging means of the second feed means from interfering'with the forwardmost of the spaced engaging means of the first feed means, means for finishing the apertures in the battery top members as said battery top members remain stationary during the rearward movement of the reciprocation of said second feed means, and means for coordinating the two feed means and the aperture finishing means.

6. A mechanism for finishing the peripheral edges of battery top members and the apertures therein, said battery top members having sloping side and end portions, comprising, in combination, base means upon which the battery top members may slide, oppositely spaced resilient engaging members arranged above the base means for resiliently engaging the opposite slop ing end portions of the battery top members and causing the end edges to extend laterally outside of said resilient members, grinding means spaced on opposite sides of the resilient engaging members, to grind the opposite end. edges of the battery top members, feed means to engage the battery top members and move same forward and broadwise between said grinding means to grind the opposite end edges of said battery top members, said feed means having spacedengaging means for engaging the battery top members, reciprocating means for actuating the spaced engaging means and causing the spaced engaging means upon the forward movement of the reciprocation to move the battery top members forward to the next successively advanced positions and causing the spaced engaging means upon the termination of the rearward movement of the reciprocation to engage the next rearwardly positioned battery top members in readiness for the next successive advancement, second base means positioned substantially at a right angle to the first base means, means for causing the forwardmost of said spaced engaging means to deliver said battery top members to the second base means, resilient means for guiding the battery top members along the second base means, second grinding means spaced on opposite sides of the second base means to grind the opposite side edges of the battery top members, second feed means to engage the battery top members and move same forward and lengthwise between said second grinding means to grind the opposite side edges of the battery top memhere, said second feed means having second spaced engaging means for engaging the battery top members, reciprocating means for actuating the second spaced engaging means and causing the second spaced engaging means upon the forward movement of the reciprocation to move the battery top members forward to the next successivelyadvanced positions and causing the second spaced engaging means upon the termination of the rearward movement of the reciprocation to engage the next rearwardly positioned battery top members in readiness for the next successive advancement; aperture finishing means movably positioned above and below the second base means for finishing the apertures in the battery top members as said battery top members remain stationary during the rearward movement of the reciprocation of said second feed means, fluid means for actuating the two feed means and the aperture finishing means, and co-ordinating means for governing the fluid means.

'7. In a machine of the character described for finishing the edges of battery top members having flanged peripheral edges and sloping sides,

base means upon which the battery top members may slide, oppositely spaced resilient engaging members arranged above the base means for resiliently engagin the sloping sides of the battery top members and causing the flanged peripheral edges to extend laterally outside said resilient members, grinding means spaced on opposite sides of the resilient engaging members to grind the flanged peripheral edges of the battery top members, and reciprocating feed means for progressively moving the battery top members forward between the grinding means at spaced distances between same, said reciprocating feed means having spaced engaging means which upon the forward movement of the reciprocation engages each of said battery top members and moves the battery top members forward to the next successively advanced positions and which upon the termination of the rearward movement of the reciprocation engages each of the next rearwardly positioned battery top members in readiness for the next successive advancement.

8; Ina machine of the character described for finishing the edges of battery top members having flanged peripheral edges and sloping sides, base means upon which the battery top members may slide, oppositely spaced thin spring members arranged substantially vertically above thebase means for resiliently engaging the sloping sides of the battery top members and causing the flanged peripheral edges to extend laterally outside said thin spring members, grinding means spaced on opposite sides of the spring engaging members to grind the flanged peripheral edge of the battery top members, and reciprocating feed means for progressivelymoving the battery top members forward between the grinding means at spaced distances between same, said reciprocating feed means having spaced engaging means which upon the forward movement of the reciprocation engages each of said battery top members and moves the battery top members forward to the next successively advanced positions and which upon the termination of the rearward movement of the reciprocation engages each of the next rearwardly positioned battery top members in readiness for the next successive advancement.

9. In a machine of the character described for finishing the peripheral edges of battery top members and the apertures therein, base means upon which the battery top members may slide, grinding means spaced on opposite sides of the base means to grind the opposite edges of the battery top members, and reciprocating feed means for progressively moving the battery top members forward between the grinding means at spaced distances between same, said reciprocating feed means having spaced engaging means which upon the forward movement of the reciprocation moves the battery top members forward to the next successively advanced positions and which upon the termination of the ment of the reciprocation of the feed means,'

rearward movement of the reciprocation engages the next reaiwardly positioned battery top members in readiness for the next successive advancement, means for finishing the apertures in the battery top members as said battery top members remain stationary during the rearward moveand means for co-ordinating the feed means and the aperture finishing means.

10. In a machine of the character described;

for finishing the edges of battery top members having flanged peripheral edges and sloping sides, base means upon which the battery top members may slide, oppositely spaced resilient engaging members arranged above the base means for re siliently engaging the sloping sides of the battery top members and causing the flanged peripheral edges to extend laterally outside said resilient members, grinding means spaced on opposite sides of the resilient engaging members to grind the flanged peripheral edges of the battery top ing means.

members, and reciprocating feed means for progressively moving the battery top members forward between the grinding means at spaced distances between same, said reciprocating feed means having spaced engaging means which upon the forward movement of the reciprocation moves the battery top members forward to the next successively advanced positions and which upon the termination of the rearward movement of the reciprocation engages the next rearwardly positioned battery top members in readiness for the next successive advancement, each said engaging means having two finger means arranged to engage spaced portions on the battery top members, and adjustable means to move the finger means to align transversely the opposite ends of the battery top members and cause them to move substantially square between the grind- ELLWOOD H. MEYERS. EDWIN O. KLAAS.

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