US277664A - Signments - Google Patents

Description

(No Model.)

LASTING MACHINE.

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LASTING MACHINE.

Patented May 15, 188B.

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(No Model.)

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N0.z7'1,e64. PatentedMay 15,1883.

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UNITED STATES PATENT Ommen..

EZBA F. BEAL, OF EVERETT, MASSACHUSETTS, ASSIGNOR, BY MESNE AS- SIGNMENTS, TO HIMSELF AND STEPHEN SNOW, F SAME PLAGE.

LASTING-IVIACHINE.

SPECIFICATION forming part of LettersPatent No. 277,664, dated May 15, 1883.

Application tiled January 29, 1883. (No model.)

To all whom it may concern Beit known that I, EZRA FLUENT BEAL, of Everett, in the county ot' Middlesex, of the Commonwealth of Massachusetts, have inl vented a new and useful Improvement in Machinery for Lasting the Uppers of Shoes; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- Figure l is a top view,and Fig. 2 an under side view, ot' a lasting-machine provided with my invention, the nature of which is defined in the claim hereinafter presented.

The machine has three heel, three toe, and two intervening or side jaws topertorm the work of forcing the leather ot' a shoe-upper down upon an insole laid upon the sole of a last; and, besides, such machine has mechanisms for effecting the necessary intermittent zo reciprocating movements of such jaws. In Fig. l of the drawings the three toe-jaws are marked B A B, the three heel-jaws C D C, and the two intervening or side jaws E E.

Fig. 3 is a transverse and median section7 and Fig. 4 a longitudinal and median section, I ot the machine. Fig. 5 is an under sideview of the cap-plate h and the toe-jaws B A B thereof, the heeljaws C D G and their carrying capplate i being of like construction. Fig. 3o 6 is a top view ofthe cam-grooved frame I, to bedescribed, such tigure also showing the arms K K and M M, arranged on top ot' such frame and pivoted to the lower surface ofthe top ot' the bed G.

Each of the jaws E is in separate sections or plates a a a, which are arranged on one of two sliding plates, b b, and held thereto by a guide-plate, o, extending across them, and secured to the plate l), and provided with grooves 4o to receive and sustain the shanks of the plates a. The plate c is provided with clamp-screws rl, which, when set against the said shanks, serve to hold the plates n, in any desired position. Each slide-plate b is supported by and moves on two parallel rails, fj', projecting upward 'from the bed C and into corresponding grooves in the under side of the slide-plate, such slide-plate being arranged between and against other and parallel guides, g g, extend- 5o ing upward from thebed.

The mechanism for operating or moving the slide-plates b b that carry the jaws E E will be hereinafter explained.

The two median toe and heel jaws A and D 4are projected from two separate cap-plates, lL 55 and i., arran ged on and fixed to two slides, 7c l, adapted to move inlongitndinaland rectilinear directions toward and from each other on or over the bed C. The two auxiliary heel-jaws, like the two auxiliary toe-jaws, have circnlarly- 6o curved shan ks nz, arranged between eircularl ycurved guides n, as shown, fixed to the capplate, the shrinks m of each pair ofjaws being connected by links o o to one ot' two slides, p, arranged as shown, and adapted to move longitudinally and rectilinearly upon the top of the bed C.

The mechanism for effecting the movements of thejaws will now be explained.

Extending across the bed C', and journaled 7o thereto, isa shaft, G, upon which, at its mid` dle, and loosely thereon, is an eccentric, q,which is embraced by the collar r2 ot' a furcated pitman, H. This pit-man is jointed at the ends oi' its prongs to a frame, l, adapted. to move 75 rectilinearly within the bed G', and longitudinally thereof. When the eccentric is revolved reciprocating movements will be imparted to the frame I. This frame I has two angular slots,r r',to receive friction-rollers s s, extend- 8o ing into them from two arms, K,which are arranged Ias-shown in Fig. 6, and which are pivoted to the bed C at It', Fig. 4. These arms are to swing laterally, cach having a step, t, to receive a pivot, n, extending into it from one ot' the side jaw carrying-plates b. By means ot' the slotsiI r the arms are moved laterally, and move the plates b b toward and away from each other, the longitudinal por tions r ofthe slots eii'ecting no movements of 9o the plates, but answering simply to hold them in position, while the frame I may continue in movement, and the friction-rolls may be in the said longitudinalportions fr. The oblique portionsr ot' the slots are what operate to produce 95 the lateral swinging ofthe said arms.

Extending transversely across and below the' frame I are two iiat slides, L, which, ar-

ranged as represented, are adapted to the bed O', so as to move rectilinearly thereon and roo 'oted to the slides pp, extend.

transversely thereof. Each of the said slides has through it at its middle an oblique slot, a,and it also has pivoted to it a friction-roller, e, to enter one of two' slots, 'w w, formed and arranged as shown iir-the frame I.

` Arranged over and upon the frame I in manner as represented in Fig. 6, and pivoted to the bed C', are two other arms, M M, these arms being near their inner ends pivoted to the slides k and Z, to which the cap-plates 7L and t' ofthe toe and heel jaws are fixed. Each arm M has pivoted to it a friction-roller, c, that enters the oblique slot u of the next adjacent slide L. There is also pivoted to eacharm M one of two flat and slotted arms, N N, which are represented in Fig. 6 in top view, the oblique slots of such arms being shown at w m. Into these slots friction-rollers y y, piv- Furthermore, the two arms N N, at their outer ends, are connected by links e z with two bell-cranks, a a', pivoted to the base C', and connected by a larger link or bar, b', jointed to them. To a projection, c,from the bar b a pitman, d', is

z jointed, such pitman having a collar, e', to encompass an eccentric,j", that runs loosely on the shaft Gr. Between the two eccentrics j" and g, and to slide on the said shaf't, and adapted to it by a spline77 or feather connection, is a clutch, O, the two eccentries being provided with means ot' engaging either with the clutch. The clutch is to have a shipper77 or lever adapted to it, to move it either into or out of engagement with each of the two eceentrics.

By the mechanism thus described for actuating the side and toe and heeljaws they will he operated in the following manner, it being understood that the machine is to be provided with the usual or proper mechanism for supporting a shoe-last for holding a shoe-upper to be lasted.

The parts being in the position shown in Fig. 4, thejawsare at their outer limit of extension, and the cam q is on the side of the shaft Gr away from the pitman H. To operate the machine the clutch O is interlocked with the hub of the cam q, and the cam and shaft can be turned together. Power (manual or other) is then applied to the crank, revolving the shaft G and cam q, thus giving the pitman H a rectilinear movement lengthwise of the machine. Through this pitman H a similar movement is communicated to the frame 1, moving the latter away from the shaft G. As this frame I thus moves, the angular slots 1' r', passing the friction-rollers s s ot' the arms K K, eausethe latter to swing on their pivots, and thus, through the steps t t and pivots a racause the side jaws, E E, to move inward. During this movement of the arms K K and jaws E E the straight portions of the slots w w of the frame I are passing by the friction-rollers e v -swingthe arms N N on their pivots.

of the two flat transverse slides L L and brin ging these rollers into the oblique portions of such slots. At this juncture the slides I II are given a rectilinear transverse movement, and the straight portions of the slots u' u' in such slides pass the friction-rollers .fr x ot the arms M M, bringing such rollers into the oblique portions of such slots. As these rollers x w enter the oblique portions of these slots u u the jaws E E are at their inner limit, and stop. The slide I, however, still continuing with the further throw\of the cam g, through the slides I I and arms M M, moves the slides 7c Z and capplates 7i i, imparting an inward movement to the toe and heel jaws. These jaws reach their inner limit when the cam q has made a semirevolution. It will be seen that the relation and proportion ot' these parts are such that they come promptly in to play one after another at the proper juncture. This action of the machine causes thejaws to crimpthe 'edges of the' vamp over the last in the usual manner, and the revolution of the shaft Gr is stopped. To release the jaws the rotation of the shaft is continued and the movements of the various parts are reversed., It' it is desired to move the two side toe and'heel jaws, B B and C C, separately from the middle toe and heel jaws, A and D, the clutch O is interlocked with the cam or eccentric j", connecting said eccentric with shaft G5. On said shaft being turned, and with it the eccentricf, the pitman d is given a movement lengthwise of the machine, communicatin g a rectilinear movement to the bar b away from the shaft G, causing the bell-crank levers a a to rock, and through the links z .e As these IOO arms swing, their obliquel slots x' x', passing These jaws are i IOS IIO

lateral heel and toe jaws, such consisting ot' j the shaft Gr, its clutch 0, and two eceentrics, q and f', and their pitmen H and d', the slotted frame I, arms K K, jawcarrying plates b b, slides L L, arms M M, cap-plates h and t', slides k l, links o o, slidespp, arms N N,links z z, hell-cranks a a', and bar b', all being adapted and arranged essentially as represented.

EZRA FLUENT BEAL. Witnesses lt. H. EDDY, E. B. PRATT.

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