US388845A - Crimping-machine - Google Patents

Description

3 Sheets-Sheet 1. H. DONOVAN. GRIMPING MACHINE.

(No Model.)

No. 388,845. Patented Sept. 4, 1888.

I Il" (No Model.) 3 Sheets-Sheet 2.

H. DONOVAN. GRIMPING MACHINE. No. 388,845. Patented Sept. 4, 1888.

(No Model.) 3 Sheets-Sheet 3.

H. DONOVAN. GRIMPING MACHINE. No. 388,845` Patented Sept. 4, 1888.

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VL PETERS, PMN-LKW. WMM' D. C,

UNITED STATES PATENT OFFICE.

lIFNRY DONOVAN, OF NFV BEDFORD, hfrtsSAO/HUSI'YVI'S.

CRIMPING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 388,845, dated September 4, 1888.

Application filed June 22, 199B.

To all whom it may concern:

Be it known that I, HENRY DoNovAN, of New Bedford, in the county of Bristol, State of Massachusetts, have invented a certain new and useful Improvementin Leather-Crimping Machines, of which the following is a description sufficiently full, clear, and exact to cnable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure lis asidcclevation, partly in section, of my improved leather-crimping machine; Fig. 2, a front elevation of the saine, certain parts being shown in section on line xx in Fig. l; Figs. 3, 4, 5, 6, views showing certain details of construction; and Fig. 7 an isometrical perspective view of the body and jaws detached.

Likelettcrs and figures of refereneeindieate corresponding parts in the dif'f'erent figures of the drawings.

My invention relates to that class of' leathen crimping machines which are provided with adj ustable crimping-jaws and a series ofcri inping plates or forms adapted to pass succes` sively through said jaws; and it consists in certain novel features, as hereinafter fully set forth and claimed, the object beingto produce a cheaper, simpler, and more effective device of' this character than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation:

In the drawings, A represents the table, Z the frame-work of the machine, N the body of the crimper, and It Q, the crimping-jaws.

The frame-work consists, primarily, of two centrally-arranged vertical standards, l, connected at the top by a brace, C.

Two vertical standards, Il, are secured to the table A in the same vertical plane, respectively, asthe standards i, and are con nected therewith centrally by cross bars, (if), and at thc top by a curved arm, V.

A Vertieally-arranged guide-plate, n. is secured centrally between the front and rear standards, 15"" '1, and provided with a curved upper edge, 6l, the purpose of said plate being hereinafter described.

Serial No.

A vertically-arranged locking plate, c, is centrally disposed in the same Vertical plane as the guide-plate fr, and is provided in its upper portion with a curved edge, 75, and a series of holes, y/,(see Fig. l.) for a purpose hereinafter described.

A horizontally-arranged shaft, L, (see Fig 2,) :is journaled in the central standards,B B2, and provided on its rear end with a large gear, J.

A bracket, l), projects rearward from the central standard B, a horizantally-arranged shaft, K, being journaled in said bracket and standard and provided with driving pulleys E F G and the pinion H, which intermcshes with the gear J.

The body N consists, essentially, ofan oval plate, to the rear side of which, near one ofits ends, is secured asleeve, 62, which is mounted on the shaft L, a sprocket-wheel, 10, being se cured to said shaft on the face of said body. A stub-shaft, 22, projects from the opposite end of the body N, and mounted on said shaft there is a sprocket-wheel, l5, an endless chain belt, 20, being disposed on said sprockets and adapted to travel as the shaft L rotates. An oval track, O, is secured to the face of the body N and follows the course of said chain. Carriers fr (see Figs. 3 and t) are secured at intervals to the belt20, said carriers being provided on their under sides with grooves G3, (see Fig. 4,) having curved edges (il, to adapt them to travel on the track O as the chain 2O moves.

The crimping-plates l), of the shape usual in machines of' this description, consist of a metallic plate, 13, provided with a leather covering, 14.

Each carrier r is provided with a dovetail groove in its outer edge, a plate, l2, having a dovetail, G5, adapted to enter said groove, being secured by screws t to one edge of each of the crimping-plates P, thus enabling said plates to be rcadil y and detachabl y secured to said carriers.

rlhe crimping-jaws consist of a fixed jaagt), preferably formed integral with the body N and projecting laterally from one side thereof', and a movablejaw, it, hinged at 66 (see Fig. I) to a frame, T, hereinafter described.

The upper portion or mouth of thejaws is of the usual forni, being triangular in side elevation, and have their inner faces corru- IOO gated, as shown at GT in Fig. (i, the corrugal therein and through a hole, 1/. in said plate.

tions following the curve ot' the mouth ot' said jaws and increasing in distance apart as the bottom is approached.

The frame T consists of two parallel side bars, 68, (sec Fig. 1.) and two crossed side bars, 70, (sec Fig. 5,) one end ot' said crossed bars being connected with the parallel bars (SS by end bars, (t9, which are fitted to slide horizontally in holes formed in the center ot' the body N, the opposite ends of said side bars being connected by similareud bars, 7l, which are fitted to slide in holes iu the outer edge ot the fixed jaw (2 openings being provided in the edge of the movable jaw ll to allow said end bars to pass.

The movable jaw lt is hinged atI (i6 to the bars GS, as described, and a block, 73, being secured between said bars, near the outer edge ofsaid jaw, and provided with a thumbscrcw, q, which passes into said jaw, and by means ot which the distance between thejaws eau be regulated.

A bar, S, is secured tothe body N and fixed jaw between the parallel bars GS by means ot' braces 7G, the outcreud, 77, ofsaid bar S bcing provided with a pin-hole, m, (see Fig. 1,) adapted to register' with the holes y/ in the locking-plate c.

By inserting a pin iu the holes my the body N may be secured in any desired position ou the plate z.

A semicircular plate, M, is secured centrally to the sleeve (i2, near the standard Il, said plate being provided on its periphery with a track or groove, p, iu which the arms ot' a forked traveler, 78, are fitted to slide, said traveler being provided with a pulley, 7.', as shown in Fig. 2.

A horizontally arranged rearwardly A projectiug slotted stud,j, is secured centrally at the intersection ot' the crossed side bars Tt), a cord, m, being tasteucd to said stud and passing over the pulley k, a weight, (l, being secured to the outer end of said cord. A wedgeshapcd block, i, is secured to the crossed-bars 7() Within the study'. A rod, j', is pivoted horizontallyiu the body N, sothat its forward end projects into the path of the carriages r above the jaws Q R, as shown in Fig. l.

To the rear end of the rod fis pivoted a vertically-arranged bar, y, which passes through the Studj,aud is provided with a wcdge'shaped block, h, adapted to engage the wedge-block i described. A togglejoiutcd rod, b, is pivoted in the body N, so that its forward end may be made to project into the path ot the carriages r below the jaws tg R,(see Fig. l.) the rear end ot' said rod b being pivoted to the vertical rod g, which is extended downward, so that au ordinary treadlc may be attached thereto for operating the mechanism by foot-power, ifdesired.

In the use of my improvement the bar S is secured to the plate t: in the position desired by means of a pin psssiug through a hole,

lowcr being appliedto one otI the pulleys ltl F (},the shalt L is rotated, causingthebclt 2010 travel from lett to right amt carry with it the carriages )'seeurcd thereto, and with them the crimping plates l,which successively pass between the jaws RQ. The leather to be crimped is laid upon the jaws in the usual uianner,aud as the plates pass said jaws is bent or molded in the form desired. As a platel approaches the jaws,its carriage r strikes thc forward cud of the rod f, causing the vertical rod .(1 to be raised, thereby removing the wedge-block It t'rom the stud j. As soon as this oceu rs the weight (t, attached to said stud as described, drawsbackward the sliding framework T and forces the movable jaw lt, attached thereto, against the leather to be crimped on the plate or former l.) as it passes between the jaws. rPhe corrugations ti? ou thc inner faces ot' the jaws enable them to take a tirmcr hold upon the leather and crimp the same much more perfectly than when smooth jaws are used. lly means of the thu mbscrew q the movable jaw vIt maybe so adjusted iu relation to the jaw Q that the dii't'ercnt thicknesses iu the same piece of leather may be readily compensated t'or. Alter the plate l. has passed through the jaws its carriage r strikes the torward end ot' the toggle-jointed rod I, which had been thrown into its path by the rod y as it was drawn up. 'lhis pulls the rod f] down ward again and t'orces the wcdgeeblock l1, into contact with the bloclf. i, thereby moving the frame T forward, and with it the movable jaw t, thus opening the, jaws to receive the next plate I.

In crimpingmachines as ordinarily corr structed it is necessary to await the return of the crimpingrplatc after its passage through the jaws before another piece ot' work can be placed in position to be crimped. ln my improved crimper the plates follow `each other successively, one entering the jaws directly after the precedingonc leaves it, thus enabling the work to be greatly tacilitatcd. y covering the stccl plates l) completely with a leather covering, 14, as described, so that said leather intervcues between the form and upper to be crimped, it is not necessary to rclnove and replace it with each upper crimped, as is necessary iu machines ot' ordinary construction. Moreover, the cover being fastened to the form renders it possible to remove the upper without losing the crimp, as the cover being soft and pliable easily bends when removed. The upper, after being crimped, can readily be removed from the t'orm or plate l while in motion, which avoids the necessity of stopping the form to remove the work, as is customary in machines ot` this class. ly reversing the position ofthe body Naud sccuringit in position by means ol" a piu passing through the hole .r in the locking-bar S and into a hole, w, in the curved brace \V the plates P may be made to pass upward through the jaws It IIO Q. This is of particular advantage when the upper is reversed or turned right sido out to he crimped the second time, as it is much more easily placed upon the form for this purpose than upon the jaws in the ordinary manv ner,it bei ng understood that uppers are usually crimped the first time with the unfinished side of the leather outward, because the jaws enA gage the rough surface more readily and remove the wrinkles more effeetually.

My in'iprovement also saves time in the manipulation ot` theupper,as by placing the hand flatly againstone side of the plate l) and grasping the flap ot' the upper on the other side it may be readily turned while rcmovingitt'rom the plate.

I am aware that leather-covered jaws and plates and corrugated jaws have been used in this class of machines, and I do not herein claim the same broadly when in and ofthemsel ves considered.

Having thus explained my invention, what I claim isl. Vln a crimping-maehine, the combination ofa body provided with a track, sprocketwheels journaled on said body, an endless chain belt disposed on said sprocket-wheels, carriers fitted to travel on said track and carrying crimping-plates, said carriers being connected with said belt, a pair of jaws, one of which is secured to said body and the other hinged to a movable frame passing through said body and fixed jaw, means for moving said frame laterally and closing and opening thcjaws, and actuating mechanism for said chain, substantially as set forth.

2. In a eritaping-machine, the combination ofan adjustable oval-shaped body provided with a track, an endless chain disposed on sprocket-wheels carried by shafts journaled in said body, a series of carriers disposed on said track and actuated by said chain, crimpingplates detaehably secured to said carriers, a txedjawonsaidbody,andamovablejawhinged to a frame-work fitted to slide laterally th rough said body and fixed jaw by which the distance between said jaws may bc regulated, substantially as described.

3. In a crimpingmachine, the combination of an oval-shaped adjustable body journaled on a shaft and provided with a track, an endless chain belt disposed on a sprocket on said shaft and asprocket ou astub-shaft projecting from said body, carriers attached to said chain and adapted to slide on said track, a crimping-plate provided with a flexible covering and detaehably secured to each of said carriers, a fixed jaw secured to said body and provided with a corrugated crimping-surface, a locking-bar secured to said body and jaw for holding the same in position, a frame fit ted to slide laterally through said body and jaw, a inovablcjaw hinged in said frame and having a corrugated crimpingsurface, and mechanism adapted to be released or let off by said carriers, whereby said frame may be moved and the distance between said jaws regulated, substantially as set f'orth.

4. In a crimping-niachine, the combination ofa body journaled on a driving-shaft and provided with a track and a fixed crimpingjaw, carriers bearing crimping-plates disposed on said track and actuated by an endless chain belt driven by said shaft, alaterally-adju-table frame fitted to slide in said body and jaw, a movable jaw hinged in said trame, a horizontally-arranged rod pivotcd in said body and projecting into the path of said carriers, and a vertically-arranged bar pivoted to said rod and provided with a wedge-block adapted to engage a block disposed in a slotted stud on the rear of said fraaie, and a weight secured to said stud, whereby when said carriers engage said rod and disengagc said block said weight will force the movable jaw against the crimping plate as it passes between the jaws, substantially described.

5. In a crimping-maehine, the combination of a body having a fixed jaw, a frame fitted to slide laterally in said body and jaw, a movable jaw hinged to said frame, a slotted stud secured to said frame and provided with a wedge-block, a cord and weight secured to said stud, a rod pivoted in said body above said jaws, a toggle-jointed rod pivoted in said body below said jaws, and a vertical bar hinged to the rear end of' said rods and provided with a wedge adapted to engage the wedge in said Stud, substantially as set forth.

6. In a critaping-machine, thecombination of a framework provided with holes for receiving a locking-pin, an oval body journaled on a driving-shaft in said frame-work and provided with a track and a fixed crimping-jaw, a sleeve on said shaft and secured to said body, a chain belt disposed on a sprocket-wheel ou said shaft and on a sprocket on a stub-shaft projecting from said body, carriers fitted to slide on said track and secured to said chain, crimping-plates having flexible coverings and adapted to bc dctachably secured to said carriers, a frame fitted to slide laterally in said body and jaw, a locking-bar secured to said body and jaw and provided with a piu-hole adapted to register with the holes in said frame-work, a movable jaw hinged to said sliding frame, a screw for ad justing said jaw, and mechanism adapted to be let off or operated by the crimping-plates, whereby said movable jaw may be forced against the leather on said plates as they pass, substantially as described.

7. In a erimping-machine, the carrier r, provided with the slot 63, having the curved side (it and a dovctail groove on its outer edge, in combination with the crimping-plate I), provided with the dovctail block 12 and flexible covering lit, substantially as set forth.

In a eritaping-machine, the oval body N,

journaled on the shaft L, and provided with the track O and chain belt 20, in combination with the carrier r, secured to said chain and IOO ISO

fitted to slide on said iinek, and Lhe crimp` [mine T, having the slotted sind) und wedge` ing-plate P, Seenie'd t0 Snid emi-ier, Snhslnni bleek f1', in combination with Lhe xnovnhlejnw inillyns described. l, hinged t0 Said ilninie, and ineehnnimn E). In :i ei'inipinginnehine, the seinicileul ndnpied to he let off oif'ipei'niwl by the ei'inin 5 hir plate M, provided with the groove p and ingphit'es,wheiebysnid mnvnhlejzlw is l'oreed jonlnnied on the shnl't L, in emnbinntion with I against the leather 0n ,mid plates, Snhst'nn the forked traveler 7S, provided with the pnliinlly ns deserihed. ley f for the 00rd m, euri-ying the weight n, I whereby the jaws 0f the eiinipei :we nnte l 1o inni icnlly adjust ed, SnhSl initially :is Het `0i'ih.

10. In n. erimping-nmehine, the slidingl HENRY DONOVAN. \\i nesses:

WM. A.. (Minnen, TnmnY F. Diashow.

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