US359379A - Work-holder for-lathes - Google Patents

Description

(No Model.)

GQP. BALL-0U. WORK HOLDER FOR LATHES.

PatentedMar. 15, 1 887.

Nrrnn STATES PATENT WORK-HOLDERFOR-LATHES.

srncjrricarrom Application filed June 9. 1886.

i To all whom it may concern:

Be it known that I, GEORGE F. BALLOU, of Waltham, in the county of Middlcsex and State of Massachusetts, have invented certain new and useful Improvements in Work-Holders for Slide-Lathes, of which the following is a full, clear, and exact description.

The work-holder of this invention is more particularly designed and intended for use in slide-lathes of the general construction and arrangement of parts, including the slide-rest and slide-carriage fully shown and described in a separate application for Letters Patent of the United States of even date herewith, filed June 9, 1886, Serial No. 204,623; but, as will be obvious from the description hereinafter given, this holder is adaptedt-o be used in slide-lathes and with sliderests and slide-carriages-o'f other constructions and arrangements of parts.

This invention, in substance, consists, first, of aholder to be used in slide-lathes for holding and securing work to be operated upon in the slidelathe-as, for instance, to be drilled,

milled, &c'.-composed of a frame having two lengths-or armsmeeting at an angle, preferablyaright angle, and-the inner meeting faces of such lengths each adapted in any suitable manner for the engagement therewith of means suitable to clamp work thereto; second, of a holder to be used in slidc-lathes for holding and securing work to be operated upon in the slide-lathe-as, for instance, to be drilled, bored, milled, tire-composed ofa frame having two lengths or arms meeting at an angle,

preferably a right angle, and the inner meeting faces of such lengths and also the ohter face of one of the lengths severally adapted in any suitable manner for the engagement therewith of means suitable to clamp work thereto; third, of a holder to be used in slide-lathesfor holding and securing work to be operated upon in the slide-lathe-as,for instance, to be drilled, bored, milled, &c.-composed of a frame having two lengths or arms meeting at an angle, preferably a right angle, and the so meeting faces of such lengths each adapted in any suitable manner for the engagement therewith of means suitable to clamp work thereto, in combination with a slide-rest of a slide-lathe made in separate parts, or slides constructed and forming part of Letters Patent No. 359,379, dated'March 15,1887.

Serial No.- 204,623. (No modal.)

applied together to be moved and adjusted upon each other in parallel and rectilinear planes and directions, and as a whole adapted to be secured to the lathe bed or shears, and preferably for adjustment longitudinally, ver; tieally, and horizontally thereon, and having said holder attached to one and the upper of its slides to be swung and adjusted thereon in a curvilinear and horizontaldirection,and, soswung and adjusted, fastened against movement. In the drawings forming a part'of thisspecification a work-holder of this invention andv its combination with the slide-rest and slidecarriage before referred to are illustrated.

Figure 1 is a transverse vertical section of the lathe-bed broken away, and a view in elevation of the work-holder of this invention and of the slide-rest and, slide-carriage from the head-stocn'end of'the lathe, the head and tail stocks being removed. Fig. 2'is a plan view of the parts as shown in Fig. 1. Fig. 3 is a vertical section on line 3 3, Fig. 1.

In the drawings, A represents the lathe bed or shears of a slide-lathe. The slide-lathe in any and all respects, except as to the features of this invention hereinafter described, may be of any of the ordinary and well-known constructions and arrangements of slide-lathes; but a slide-lathe and a slide-carriage and a slide-rest therefor all suchas shown and described in the application stated are most preferable, and which, so far as necessary for this invention, are shown and will be herein described, it not being thought necessary to fully illustrate the other parts thereof, as they in no particular form any part of the present invention. f

r M M are the upper andlower leading-screws of the slide-lathe referred to. The upper leading-screw, M, and also the lower leadingrscrew, M", are connected and rotated from the rotation of the lathe-arbor and otherwise, as described in said application. a

The rotation of the leading-screws is for the purpose of moving a slide-carriage lengthwise along the front cheek of the lathe bed or shears, and which carriage is suitably constructed therefor, and the upper leading-screw, M, which is for fine work, connects with horizontal sectional or half screw-nuts D (one only shown,

fork shape,

but two being preferable) of the slide-carriage, and the lower leading-screw, M which is for general work, connects with the slide-carriage by mechanism consisting, among other parts, of a hand-wheel, (not shown,) and otherwise all as fully described and shown in the application aforesaid,and the whole such as to enable the slide-carriage to be moved lengthwise of the lathe-bed in either direction, and either from the action of-the driving mechanism of the lathe or by the hand-wheel, and also to enable the speed of such movement to be varied and adjusted and eitherof the leadingscrews to be brought into action upon the slide carriage, and all as is fully shown and set forth in the application aforesaid. These several parts and their combination and arrangement, as above referred to, form of themselves no part of this invention, and so it is not deemed necessary to herein further describe them.

The slide-carriage is in two parts, to wit: a vertical plate or block, B", with a front fiat face and a back face of angular shape to fit a corresponding angular-shaped gnideway, G, therefor ofthe front cheek ofthe lathe-bed,and a bracket with an upright portion, B, arranged to move vertically in a dovetail way, B of the front face of the block B, and a horizontal arm, B which projects from the upper end of said upright 13* andat right angles to the length of the slide-carriage, and is made of and preferably with the space between its tines open at the front end, B.

The bracket 13* B is vertically adjustable on the slide-carriage through the turning of a vertical screw-rod, B, engaging with the vertical screw-nut portion 13 of the bracket and turning loosely within a horizontal bearingblock, B, of the slide-carriage, and therein confined against lengthwise movement in any suitable manner. This screw-rod B by which to adjust the bracket B B" vertically, as above stated, has at its lower end a milled head, B, peripherally and properlygraduated in one hundred equal parts or divisions, each representinga one-thousandth of an inch, and figured for the rise and fall of the bracket from the turning of said screw to be measured and determined in enethousandth parts of an inch, using a suitable index-mark at the front side of the. bearing-block B" of the screw-rod.

The vertically-adjustable bracket 13 B of slide-carriage supports and carries a slide-rest in two horizontal parts or slides, O and C, placed upon each other. Slide C-the lower slide ofthe two slides ofthe slide-restis made with flaring edges (Z, which fit and set over corresponding flaring edges of the brackettable B. The direction of these flaring edges transversely to the width of the bracket-table B and as shown, is preferably such as to permit slide 0 to be set bodily upon the brackettable B without requiring it to be slid lengthwise along the same,and otherwise all arranged for slide (3, with all the other partsjconnected with it, to be moved horizontally on the table B forward to and backward from the axial line of the lathe-arbor. (Not shown.)

C is a screw-bolt projecting downward from slide 0 of slide-rest and between the tinesof the forked table B, and C is ascrew or thumb nut screwing on said bolt and fastening said slide (1 to table B and against movement thereon. Slide 0* of the slide-rest fits by a dovetail way in its under side over a corresponding dovetail projection, C, on the upper side of the lower slide, 0, and thus slides G G are adapted for a movement of the upper slide on the lower slide of the two and in a horizontal plane, and one parallel with and in the direction of the horizontal slide of the lower slide, 0, on bracket B B. Slide 0 has a circular and vertical edge marked off or graduated in representation of the degrees of a circle, Fig. l, and it is provided with a horizontal screw-rod, 0 whichengages with a screw-nut, O, and by peripheral collar and groove (not shown) is engaged with the bearing-block C, and thus screw-rod 0", when turned, is confined against lengthwise movement through said block.

0" is a milled head of screw 0. This head is peripherally graduated in one hundred equal parts, each, using a suitably-located indeX-mark as aguide, representing inthe movement of the slide operated by the screw-rod a one-thousandth part of an inch.

H H is the angular frame making the work-holder of this invention. This frame is in two lengths or arms, H H", having inner faces, H H, respectively, meeting at'an an gle, preferably a right angle. The length or arm H makes the base of the holder, and it sets upon the upper slide, O, of the slide-rest,- and in width it corresponds to the diameter of the graduated circular rim or edge of such slide, and it is arranged to swing around a vertical central pintle, 0 f, thereof, and using a suitable index-mark, Fig. -1, of its edge, with the graduations of the circular edge of slide C. The work-holder can thus be adjusted definitely in a curvilinear direction and the work secured thereon, as hereinafter described, plaeed in any angular direction desired in relation to the rectilinear movements of the-parts of thejslide-rest on each other, and of the slide-rest as a whole on the slide-carriage,and the slide-carriage with the slide-rest on the lathe-bed. The base-arm H" of the work-holder frame has a curvilinear running groove, 0", of T shape in cross-section, and concentric with the axis of swing of the holder around the central pintle, G, of slide-rest, and O are bolts at opposite diamctrical points and engaged by their T-shaped heads with said T-shaped groove. These bolts pass loosely through the thickness of rest-slide C, and on the under side of the slide each bolt receives a screw-nut, G". Tightening tl-e screw-nuts G fastens the holder to and loosening them releases the holder from slide-rest, leaving it free to be swung around on the same.

' Each of the inner meeting faces, B B, of

Qthe holder, and also the outer vertical face, E

of the upright leg H of the holder, and which face is parallel with the vertical face H of the meeting faces H H, is provided with a series of parailel grooves, H each T-shaped in cross-section. The grooves of the meeting faces 11 H are horizontal, and those of the outer= vertical face, Hhare vertical. These [holding faces -ofv the holder, and thework to several grooved. faces H? H H are the work- I be held placed upon the proper face of the holder is then firmly secured to itwith any suitable clamping means, using a groove or grooves H of the holding face or faces of the holder for engaging such means with and securing themto the'holder, "One form of and a suitable clamping mechanism is shown, and

\ i't'consists of a horizontal arm, J supported at one end, J, on a post, J, and atthe other end resting upon and confining and clamping the work 0*, This arm or jaw J between its ends, i'sconnectedto the work-holder of "this invention by a vertical screw-threaded bolt,

J7, having its head J entered into a T-shaped -groove H of the upper and innerface, H,

uponthe screw-bolt and brouglit to a seat ft of the base-arrn 11 of the work-holder and the whole is, then secured and firmlybound to,- gether by means of a screw-nut, J,'screwed againstthe upper edge or side of-thehorizontal armor jawhJ".

Thepieceof'work 0 sea as clamped to the horizontal face H nt the'holder, as-above exp-raises, obviously could be clamped,.using the clamping'meansdescribed, as wellto'eitheir of thevver'tical faces H H;-

be presentedpractically in I being independent of the others ln'the practical use ofithe worlr-holder, and withitattached to a slide-rest and the sliderest'teaslide-carriage, and. itj' in turn to the lathe-j:bed, all-substantially asf'has been described, lainly'work secured to the holder as described, or in any other suitable way, can

zontal directions and angles, eachpresenta tion' -"Ihe workholder herein describedis most particularly applicable to the slide-lathe, sliderest,

and slide'carriage herein referred to; but

it is not intended to be limited thereto.

' work, composed of Again, the work-holder of this invention is most serviceable as a means of holding work for being drilled, bored, milled, and otherwise operated upon in a slide-lathe, and it is most particularly adaptedfor use with the vertical drilling fixture making the subject of separate applications for Letters Patent of the United States of even date herewith.

- Having thus described'my invention, what I claim, and desire to secure by Letters Patent, 1s-- 1 work, composed of a frame in two lengths meeting at an angle,' and the meeting faces of each length constructed to receive and fasten means for clamping work thereto, and for a -tiallyras described, for the purpose specified.

work, composed of a frame in two lengths meeting at an angle, and the meeting faces of eachlength constructed to receive and fasten means for clamping work thereto, and of slides in' separate parts constructed and applied together to be moved and adjusted one upon the other in parallel and rectilinear planes. and directions, and having said frame connected thereto and arranged to swing thereon, substantiallyas ed. g 3'. A holder for use in a slidelathe to hold a frame in two lengths, H H, havingfaoes H H, meeting at'an angle,

anytandall' hip'rireceiving and seen r ng work-clampin g devices, "substantially as described, for the purpose specified.

' FRANCE-S M. BRowN.

rectilinear adjustment of such means, substan and each face provided with grooves Hfor 1. A holder for use in a slide-lathe 'to hold 2. Acholder for use in a slide-lathe to hold described, for the purpose speci- 4: A'holder for use in a slide-lathe. to hold I

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