US1790218A - Machine for winding spiral springs and inserting the wound springs in drums - Google Patents

Description

Jan. 27, 1931. J. P. APPLEBY MACHINE FUR WINDING SPIRAL SPRINGS AND INSERTING THE WOUND SPRINGS IN DRUMS Filed Jan. 3, 1927 3 Sheets-Sheet 1" 7/ I04 22 ,l I j] 5 1 1 4d Zuya".

A? ,4 q Y EL 2a I i I 1706/2/0). Jame; Pafiylggy War/74y MACHINE FOR WINDING SPIRAL SPRINGS AND INSERTING THE WOUND SPRINGS IN DRUIS Filed Jan. 3, 1927 3 Sheets-She'et 2 Jan. 27, 1931. J. P. APPLEBY wife/776g,

7, 1931- .1. P. APPLEBY MACHINE FOR WINDING SPIRAL SPRINGS AND INSERTING THE: WOUND SPRINGS IN DRUMS I Filed Jan 3, 1927 3 Sheets-Sheet 3 Inventor Jame). PWZey "Patented Jan. 27, 1931 r UNETE 01 CALIFORNIA JAiuns P. nrrnnnrpon nos antennas, cnnrronnin, 'nssiononro 'rnnnir'gonavns sAsH, noonAnn MILLCOMPANY,OF'VLQS'V'ANGELEELQCALIFORNIA}A conr'onnrion 1 MACHINE Eon -WINDIL1\TGQISLPI RAL srnines nnn znsnnrinojrnn woulvnsrnmes m 1 "e-DnUMs 'f r 1.

This invention has to do generally with spring wind ng maclnnes and 1s more part cularly coneernedwith machines for -.windi n f:

springs into spirals. l It is also concerned, with means. for ejecting the wound springs" from the winding cylinder or compartment" I ,of the device and bodily transferring them to the boreso'f barrels-or drums with which they aretobe-a ssembled, j 1 j g 7 Y lVhile the invention ,ma-yi-be embodied-in spring-winding machines irrespective of the ultimate disposition of the woundsprings, it

' may be applied with particular advantage to the winding of sashsbalance springs and to the disposition of such springs in thelwindn ing drums of such balances. Furthermore,

it is particularly "efi'ective int the transfer of wound springs to drumswh'erein a hooked ,endof the spring is to be put intov connection QWiththe peripheral wall ofithe drum, for my machine isadapted .to make ,such connection ;nism.

' lubricating-the sprlngaslt is ,Wound,1thavwithout necessitating effort ono the part of .the operator or requiring any special mecha- I have also provided novel means for ing been-found entirely unsatisfactory to :at-

tempt lubrication bythe application. of socalled penetrating-oils?or. :by paolring the drums with hardoil after thespring has been inserted. V a r Generally, the object, of my invention is to cprovide a simple, efficient device of the char-.

acter described, whereby spring windingand insertion may be accomplished with facility, accuracy and speed, thus contributing greatly tothe efficient manufacture of sashibalances andthe like. I p

= Qther objects and novel featureslofthe .in-

vention may be discussed to much better ad vantage in connection with the following detailed description, reference being had to ithe' accompanyingdrawings, in which? Fig. l is aside: elevation of a device embodying my invention; l Fig.2 is an enlarged plan View of 'Fig. 1

Fig. 3 is a fragmentary, enlarged view of Fig. "1' looking from the'right thereof, certai ma a l-y y spart e g Qmit e fo into which type illustrated ininycopending application Fig. 8 is anelevation ofa cup-shapeddrum wound spring;

; Figh9iis atop, emanating. 8; w- 1}. i:

Fig. 10in fragmentary section, on li 10*10 0f Fig,9;;I

spring inserted therein; a 7

Fig. 12a sectional'view of the an er" a '70 jthere'inand'ready to be transferredto a -win'd- I end of the device' showing aspring wound mg drum; a

, i 6 Y but showmg'another step in the operation 00 y device is 'adaptedv to insert a 7' partly in broken-away'sectionand,showing a Fig. s is; were. a th 13 ;13 Fig! f V raglan a view similar to Fig. 12 but Fig. 15 is 7 As stated above, my device is adapted towind springs irrespective of their-ultimate .75, howingthe springtransferred t0 the1drum; -v

disposition, :thoughit is espeoiallyiefiicient T in winding sash balance springs and disposmg them withinsash balance wmdmgdrums.

Furthermore,it is particularly well adapted to insert-the wound springs'in drums of the for U. S. -LettersPatent entitledfSash balance, filed April 20,1926, Serial.No."lO3,2%l7 I (Patent I.No.,f.1,699,267, dated January 15,

1929), the nature of drums ofthis type being such that there are presentedcertain difii-' culties in inserting thersprings'which do not exist in other types, though vthese difficulties are readily overcome by myidevice. However, it, is to be thoroughly understood that i this showing and reference to aparticular type of drum. anddescriptionof the insertion of a 'spring'thereintoare" not to :be 'conj vstrued as limitative on my invention, conside ed m st ess -,e p. .te -1 h01 g th y peripheral face of the flange. noted that slit is not .of a nature topermit cup hollow.

will make it apparent to those skilled in the .art how the invention may be applied with advantage'to other situations. v

In 'orden'thata better understanding may, be had of What themachine is intended to do and the problems overcome thereby, I will first describe a particular drum in whlcl thc spr1ng.1s ult1mately to be disposed,- reference belngfhad especially to 9, to 11, inclusive.

Drum 1 0 is cup shaped, the bottom '11 being centrally apertured at 12 to take a shaftor axle (not shown) of the sash-balance assembly. The peripheral w'allior'fiange portion 13 of. the cup is preferably flared outwardly slightly at 14 and is pierced at15 and struck inwardly at 16 adjacentslit toprovide" a shoulder 17 spaced inwardly from the inner It will be a spring tobewound therethrough into the Spring'p, whichcoines from the factory in flat, straight ribbon form, isprovided with i v hooks 18 ancLlS) at its opposite ends,1and the problem is to dispose this springinthe form of a spiral within'the cup10,.to dispose hook I f 18 approximately over'aperture 12 so it may be readily hooked into the axle (not/shown) projecting through said aperture in theassembled. sash balance,-and to hookthe hooked end 19'over shoulder17," the free extremity of'said hook 19 to lie in facial depression 16a formed by striking down fllange portion 16.

This condition is shown in 'F ig. 11; it will be notedthat flange portion 16may be considered as an inwardly extendinglipfihe end 17 of -said lip forming a hook-takingshoulder. I Since slit 15 is closed at both ends, it willbe seen that hook 18 may not beunoved sidewise into engagement with shoulder'17,

this preclusion necessitating certain provisions in order that hook engagement may be accomplished automatically. 7

In Fig.1 1 have illustrated a standard 20 to the top of which a base 21 of an operating head, generally designated at 22, is bolted at 23. Extending from'base 21 are'thespa ced uprights24, 25having axially alined bores 26, 27, 'respectively. Shank portion. 28 of quill 29is taken in bore 26, while quill-head 30 is taken in bore 27, said head having an annular flange 31 secured by screws 32 to upright 25 to hold the quill against displace anent in every direction.

Screws 32 also'serve to hold the winding barrelor cylinder 33 to quill-head 30 andxupri'ght 25, said screws passing through cylinder flange 34 for this purpose. Thebore of cylinder33 is indicated at 35 and it wiil .be noted that the forward edge 36"of the cylinder wall (Fig. 6) is notcheo inwardly at 37, wln'lethe inner peripheral wall 38 of the cylinder has a notch 39 which opensto for ward edge 36 and is spacedangularly from notch 37. Notch 39 presents-a square-cut shoulder 40 extending longitudinallyof the cylinder and faces away from notch 37. The

purposes of these notches will appear presently;

The cylinder wall is also cut away at 41 to admit the top '42 of shoe 43, said shoe being sec uredjat 44 (Fig.3) to base 21 and having upper face 45 iiicliningfrom top 41. The

1 shoe and cylinder-wall shoulder 46 define the ape rture'47 through which spring S-is admitted to bore 35.

There is provided a gate 48 for closing the i i open end of cylinder 33, said gate having a body'portion 49 adapted to enter said bore, and a flange portion 50' adapted to shoulder against edge 36. Thisgate ismounted for movement to and from apo'sitioniof closure by-means of an operating lever 51, connection between the .gate, :and lever beingmade collar 57, positioned on the shaft by set screw 58, with quill 'end 59, a"nd the engagement of mandrel head with the bottom wall 61 of the'countersink 62 prov-ided'in quill-head 30. Held in mandrel bore 63 by set-screw 64 and with its free end extending into bore 35, is a chuck 65, said chuck being characterized as a tubular spindle having longitudinally ex tending slot 66opening to its. free end, said end projecting. substantially to cylinder .edge

36 and being taken in body bore 67 when gate der 33 are'preferably coaxial.

A diskdike ejector head 68 is mounted in bore 35 formovement in the. direction of the cylinder axis, said head being centrally apertured at 69 to take chuck 66 with sliding fit.

Extendingrearwardly from head 68 are slide rods 70, said rods being adapted to slide through suitable apertures in quill-head 30 and being secured at their rearward ends to ring '71 which is slidably mounted on quillshank'28 and carries oppositely disposed pins or lugs 72 (F '5). "A shifter fork 73 is rigidly carried .on a'rock shaft? 4, the latter being journaled in depending base ears 75 and extending through and beyond one-of the standard walls to takeop erating handle 76. The fork arms 77 have longitudinally extending ways 78 into which pins 7 2 fit.

It will be seenthat oscillation of shaft 74 is adapted'to move head 68 from inoperative or retracted position (in which position it en- '48 isclosed; Itfwill be understood, of

course,.that mandrel 56, c-huck 66 and cylin I 1 drel by a friction brake 108"which includes a flat spring 109 anchored at one end to bracket 89 by bolt 110 and-having a trio:

" tionshoe 111 at itsxotherend. ,lVhen disk V 7 inder end, and drum 10 isapplied to the cyli inder'in thernanner shownin Fig.12. -'The fiu'ence of the a spring.

83 is unclutched from pulley 79, shoe1-11 is, adapted to engage the'side face of the disk with sufiicient force to allow only .the'desired,predeterminedamount of. reverse rotation ofsaid disk and mandrel under the in- I V The effective braking force of shoe 111' may be varied by. ad-

justrnent of screw112'whicheXtends throughspring 109 into bracket 89', there preferably being alock nut 113 forholding' the adjustment. H i 1 I 1 Gate 48 is'now swung aside toclear the cylflare 14 of the drumis of such inside diameter that the drum edge slightly overlaps the cylinder, and the lip 16 is I adapted to be taken in-notch37- (Figs. 12 and 13) shoulder 17 then'facing in the same direction .as shoulder 40bu'tbeing angularly spaced in advance thereof. Notch 37 may thus be considered as cooperating with lip 16 to force the positioning ofthef drum on the cylinder so it is 'assured that there be angularsp'acingbetween shoulders 40 and 17. "The: inside diameter of th-e drum, proper, is somewhat greater than that of the cylinder, itfollowing that whene'jectorhead (SS-is moved-outwardly to full ejectingposition. (Fig. 14)" bythe mechanism previously described, hooks 1 8 19 are slid'otf the endsjof'the' chuck and shoulder-40, respectively,'and the spring-is bodily and freely movable into' the drum,

though immediately it clears the cylinder it expands radially intocontact withthe drum flange; At the same time theinherent characteristics of the wound 'springf-moves hook 18 around the flange of the drum in acounterclockwise direction as viewed inr-Fig. 13) said hook finally being drawn-into slit15 andhooking over shoulder 17, 1(Fig. 15). The drum andspring when removed from the cylinder are in the condition shown in Fig. 11, as is desired, P It isbelieved a full understanding of the invention will behad from the foregoing but is will be understood the drawings 7 and description are to be considered merely as illustrative ofan'd not restrictive" on the broader claims appended hereto, for various changesin design, structure and arrangement may be made without departing from the spirit and scope-of said claims.

Iclaim:

1. Ina machine of the character described, a relatively stationary cylinderopen at its forward end, saidcylinder having an opening through its peripheral wall for the admission'of a flat spring to its bore, a revolvable chuck substantially coaxial with the cylinder bore and extending thereinto from the rearward endpof the cylinder, said chuck being adapted to hold one end of the spring in.

a manner whereby rotation of the chuck i'winds the springthereabouts and into the cylwall, said slot extending substantially parallel to the axis of rotationof the spindle and opening to the; forward spindle end.

- 2. In ainachineof the character described,

a relatively stationary cylinder open at its forward-end, said cylinder having an opening through its peripheral wall for the adnission of a flat spring to its bore, a revolvinder, and means for rotatingthe chuck;- said chuck being characterizedas a tubular spindle having a slot through its peripheral able chuck substantially coaxial with the cylinderbore and extending'thereinto from p the rearward end of the cylinder, said chuck being {adapted tohold one endof the spring in a manner whereby rotation of the chuck winds the spring thereabouts a-nd into the cylinderpmeans for rotating the chuck; said chuck being characterized as a spindle having a: slot extending substantially parallelto itslaxis of rotation andopening to thefor- "ward spindleend, said'slot being adapted to "take a hook, provided onfthe end of the spring; and anejector adapted both tothru'stthewouiid spring 'from the cylinderand to movesaid hook throughthe slot and-off the end of the spindle. I

T 3. 'In'a machine of the character described, I a, relatively: stat-ionarycylinder open at. its forward; end, said cylinderhaving an opening throughits-peripheral wall for the ad;

mission. of what spring .to its bore, 'a revolvable chuck-substantially coaxial with the cyl-- r i 4. Ina-machine-of thecharacterdescribed, V

a relatively stationary cylinder open at its forward end, said cylinder having an open- .ing through its peripheral ,wall for the admission of a fiat spring toits bore, a revolvable chuck substantially coaxial with the cylinder bore -and extendingthereinto fromrthe'rearward. end o f the cylinder, said chuck being adapted to hold one end of the spring in a manner whereby rotation of the chuck winds the spring thereabouts and into the "cylinder, means for intermittently applying rotative spring winding force to said chuck, and adjustable means yieldably resisting movement of said chuck in a spring-unwinding direction when said force is relieved therefrom.

' -r-5'. In amachine of the character described,

' a relatively stationary cylinder open at its forward end,'said cylinder having an open ing through its peripheral wall for the admission of a flat spring to'its bore, a shoe 1 over which the spring is led towards said pethe cylinder, saidv chuck being adapted vto 'lb hold one end of the spring in a manner where ripheral opening, a revolvable chuck substantially coaxial with the cylinder bore and extending thereinto from the rearward end of thereabouts and into the cylinder, means for rotating the chuck, and means for'applying a lubricant to the portion of said spring overlying said shoe as said spring is wound into the cylinder. a

6. In a machine of the character described,

day of December, 1926;

a relatively stationary cylinder open at its 1 forward end,"said cylinder having an opening through its peripheral wall for the admission of a'fiat spring to its bore, a shoe over whichethe spring is led towards said peripheral opening, a revo-lvable chuck substantially coaxial with the cylinder bore and extending thereinto from the rearward end i of the cylinder, said chuck being adapted to i hold one end of the spring in a manner whereby rotation of the chuck -winds the 7 spring thereabouts and into the cylinder,

means for intermittently applying rotative springwinding force to said chuck, lubricatingmeans movable into and out of engagernent with the spring where it overlies said shoe as said spring is wound into the cylinder, and means for movlng said last-named means into engagement with the spring only 7 cylinder bore and extending thereinto from v the rearward end of the cylinder, one end of; the springbeingadapted tobe engaged with 1 the chuckin a manner whereby rotation of endwise ofthe chuck, means for rotating the I chuck, and means movable longitudinally a through the cylinder. bore and effective by i by rotation of the chuck WlDClS the spring from the chuck and simultaneously to thrust the woundspring from the cylinderbore outii;

through said open end.

In witness that I claim the foregoingI have hereunto subscribed JAMES P; A PLEBY;

when said rotative ,force isapplied to the v chuck. V

7 In a machine of the character described,

' a relatively stationary cylinder open at its forward-end, said cylinder having an open-' ing through its peripheral wallfor the ad mission of a fiat spring to its bore, a revolvable chuck substantially coaxial with the cylinder bore and extending thereintor from the rearward end of the cylinder, one end of the spring being adapted to be engagedwith the chuck in a manner whereby rotation of the vchuck winds the spring thereabouts and into the cylinder, said one spring end being. disengageable from the chuck bymovement V endwise of the chuck, means for rotating the chuck, "and means I movable longitudinally through the cylinder bore and, efii ective by virtue of such longitudinal movement both my name this 15th to positively disengage said one spring end i from the chuck and to thrust the wound spring from the cylinder bore out through said open end.

8. In a machine of the character described,

'a relatively stationary cylinder open at its forward end, said cylinder having an opening through its peripheral wall for the admission of a fiat spring to its bore, a revolvable chuck substantially coaxial with the

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