US356335A - Heel stiffenee machine - Google Patents

Description

(No Modal.) 3 SheetsSheet 1. E. SIIAW. HEEL STIFFENER MACHINE. No. 356,335. Patented Jan. 18, 1887.

(No Modal.) 3 Shets-Sheet 2.

E. SHAW. HEEL STIF-FENER MACHINE.

Patent6d Jan. 18, 1887.

(NoModel!) 1 3 Sheets-Sheet -3. E. SHAW. HEEL STIFFENER MACHINE.

No. 356,335. Patented Jan.18, 1887.

ELTJAH SHAW, on MIL}VAUKEE,WIS.,

PATENT mon.

ASSIGNR OF ONEHALF TO CHARLES T. BRADLEY AND XVILLIAM H. METCALF, BOTH OF SAME PLACE.

HEEL-STIFFENER MACHINE.

SPECIEICA1ION forming part of Letters Patent No. 356,335, dated January 18, 1887.

Application filed Avril 3, 1886. Sorial No. 197,658. (No modcl.)

T aZZ wh07n [25 7nay concern;

Be it known that 1, ELIJAH SHAW, of Milwaukee, in the connty of Milwaukee and State VVisconsin, have invented ncW and nseful Improvements in Machines for Forming Heel- Stiffeners; and I do hereb declare the following to he a full, clear, and exactdescription of said invention, reference being had to the accompanying drawings, and to the letters or figro ures of reference marked thereon, which form a part of this specification.

'The object of my invention is to provide a machine that Will antomatically shape and mold a heel-stiifener, which machine operates rapidly, reqnires but littleattention, and is not fiable to get ont 0f repair or to qnickly wear ont.

The pecnliar construction of the parts of the machine and its operation will be nnderstood from the following description, with a reference to the accompanying drawings,in which Figure lis a perspective of the complete machine. Fig. 2 is a vertical central section longitndinally of the machine. Fig. 3 is a plan of a portion of the forming mechanism. Fig. 4 is an nnder side view of a part of the mechanism for operaing the forming mechanism. Fig. 5 is a vertical cross-section of the machine on line X X of Fig. 2, showing also 0 parts to the right of the line of cross-section. Figs. 6, 7, S, and 10 are details. Fig. 9 is a vertical cross-section of the presser-head.

The same letters refer to like parts in all the Views, and arrows indieate the direction of the 3 motion of the wheels.

The operative mechanism is all snpported on a rigid frame, A. A former, I, is affixed rigidly to the top of the frame, near one end centrally, and projects inwardly on the top of 0 the frame.

same thickness as the height of the to-be-made heelstiffener, and its horizontal shape at the front or inner end is about that of the hee1 of a small-sized hn man foot, gradnally narrowing somewhat horizontally in the rear of the front wider part, thns making it still further to correspond with the form of the human foot. The former is corrngated vertically, whereby it grasps and holds the stiffener firmly while being shaped.

This former is vertically about the On the top of the frame, in front of the former 1, are two molding or shaping jaws, 2 2, which are pivoted at their rcar ends on a slide, 3, so as to have a horizontal movement of their front ends. The front ends of these 5 jaws 2 2 are held togethcr against each other yieldingly by imvardlypressing springs 4 4, affixed to the rear end of the jaws and bearing against a pin in the slide. The front ends of thejaws 2 2 are ont ont or recessed, forming a mold or shape, 5, adapted to receive and fit closely to the former 1. This mold or shape is out equally from each of the two jaws 2 2, and is preferably lined with a sheetmetal spring-lining, 6, affixed atits onterends to the outer front ends of the jaws, and fits snugly to the inside of the mold when the jaws are held together,and has snflicient elasticity to permit the jaws to separate slightly, so that the narrower front end of the shape 5 may pass the wider front end of the former 1 when the jaws are pressed up to and against the former 1, as will be hereinafter describcd.

The slide 3, carrying the jaws 2 2, has a reciprocating movement forward and back on 7 the frame, and is operated as follows: The drivingshaft-7, on which is the power-receiving band-wheel 8, is provided Wth a pinion, 9, meshing with the gear-wheel 10, snpported on and rotating with an arbor having bearings in the frame. A pitman, 11, connects the gear-wheel 10 With the sector-gear 14. The pitman 11 has a slot, 12, Fig. 8, in which a sliding block receiving wrist-pin 13, eccentric on gear-wheel 10, fits and slides, carrying the 8 pitman; but by the slot 12 a certain amonnt of lost motion betwecn the gear-wheel 10 and sector-gear 14. is provided for. The sec tor-gear 14, oscillating on a shaft, 15, supported in the frame, meshes with pinion 16, supported and rotating on an axle, 17, having its bearings in lugs 18 18,projecting inwardly, one on eachside of the pinion,from the under side of the slide 3. The pinion 16 meshes with straight rack 19, which rack is snpported on the frame A and is adapted to be alternately connected rigidly to and movable in this frame. This rack 19 is snpported in dovetailed ways 20 on each side rigid to the nnder side of the top of the frame, and in thcse ways IOO the raek bas a reeiproeating endwise 1novement. Rigid on its front end this raek 19 has a head-pieee, 21, t0 whieh the eonnectingrods 22 22, one on eaeh side, are pivoted, whieh rods, at tbeir rear ends, are pivoted in one end, respeetively, to the short lever-arms 23 23, which arms, at their otherends, are each rigid t0 a pivoted bolt, 24, which bolts pass np throngh and turn in the top of the frame,

and carry gid1y on their respective npper ends the lever-arrns 25 25, the free ends of whieh extend inwardly and are adapted to bear against the onter sides of the jaws 2 2, near their front ends, and close these jaws tightly against the former 1.

To obviate binding, the arn1s 25 25 are provided with anti-frietion wheels 26 26 in their free inner ends, wbieh impinge against the jaws 2 2. A pin, 27, having endwise movement, passes through one of the flanges forming the rigid way 20, and enters an aperture therefor in the rack 19. The pin at its onter end is snpported in a 111g, 28, rigid on the frame. About this pin 27, and rigid thereto, jnst outside of the way 20, is a oollar, 29, and around the pin, between collar29 and 1ng 28, is a coiled spring, 30, bearing against the collar and 111g at its respective ends, whereby the pin is pnshed forward, so that its inner end enters the raok, as provided for, and holds the raek in position. An arm, 31, affixed at its rear end to the nnder side of the slide 3, extends forwardly, and is provided at its front end with beveled fingers adapted to impinge against the insideof collar 29 and force the pin 27 ont of the raek 19.

It will be seen that as the wheel 10 rotates (from the position shown in Fig. 2) it Will force the seetor-gear 14 forward, and Will thereby carry slide 3 forward,so that the jaws 2 2 will inclose the former 1 in the recess 5, and just at the, moment that the jaws come to this position the arm 31 will withdraw the pin 27 from the raek 19, and the raek being then free to move endwise will, by the slightiy-eontinued motion of the sector-gear 14, be moved to the rear, throwing the arms 25 25 aronnd against the ends of the jaws 2 2 and pressing them firmly against the former 1,and by the continned rotation of wheel 10, after the lost motion provided for by slot 12 in pitman 11 has been had, the raek 19 Will, by the reverse motion of the seetor-gear, be first earried forward nntil the head 21, Fig. 2, strikes the frame, when the slide 3 will be foreed baek, the pin 27 re-entering the rack as soon as the fingers on arm 31 are withdrawn from beneath the eollar 29.

To form the inwardly-extending flange at the bottom of the heel-stiffianer, a reciprooating presser is provided. This presser is constrncted of a bar or beam, 32, extending horizonta1ly across the machine above the jaws 2 2 and former 1, and at each of its ends it has an arm,33, affixed eentrally and rigidly thereto, which arm 33 is pivoted at eaoh end to downwardly-extending snpporting-rods 34 34, whieh rods, at their lower ends, are pivoted to a horizontal arm, 35,which arm 35 is centrally supported on a shaft or arbor snpported on the frame A. By thus supporting the beam 32 it may be oscillated to the front and rear,and the bottom face of the beam romains constantly in a horizontal plane, or parallel with the top of fra1ne A.

Jnst beneath the beam 32, centrally, is a pressenfoot, 36, Fig. 10, whieh foot bas au in wardlyrurved front end, and is also provided with a laterally-extending horizontal roller, 37, in a recess tberefor in the presser -foot. This roller 37 bas journals at eaeh end, having their bearings in the walls of the presserfoot 36. Extending npwardlyrigidlyfiom the presser-foot is a stem, 38, which is provided With a rigid collar or shoulder, 39, about it 313 and just above the presser-foot, whieh eollar 39 enters and fits in the lower end of a chamber, 40, formed in and above the beaux 32, in the top of the walls of .whieh chamber a serewthreaded tension-mat, 41, is fitted and tnrns. The stem 38 extends upwardly throngh and is gaided by the tension-'nnt 41, and a spring, 42, eoiled aronnd stem 38, is inserted between the eollar 39 and tension-mat 41. The roller 37 travels on and bears against the top of the jaws 2 2, and is held steadily down toits work by the spring 42. Two guide pins, 43 43, extending rigidly npward :irom the top of the presser-foot 36, enter apertures thereior in the beam 32 and keep the presser-foot in position relative to the beam, permitting only a slight vertical movement as the beam 32 oscillates forward and baok on the rods 34.

The pressenbeam 32 is piv0ted to one end ofthe eonneeting-rod 44, which rod,at its other extremity, is pivoted eecentrically to the rotating frietion-disk 45, which frietion-disk is provided with a rigid arbor, 46, Fig. 5, extending rearward and having bearings and rotating in the frame A. This disk and its arbor 46 have no lateral motion, they being confined t0 a rotary motion by a nnt on the arbor on the outside of the frame and a eollar rigid on the arborjnst inside of the frame. A frictionwheel, 47, andapinion, 48,affixed thereto, are supported and rotate on the arbor 46. 'lhe rim of the wheel 47 projeets ontwardly over and about the periphery of the disk 4.5, the inside of the rirn and the periphery of the disk being correspondingly beveled, so as to fit against and clnteh each other when bronght into contact by meohanism hereinaiter described. The frietion-wheel 47 and pinion 48 have a slight 1ateral movement on the arbor- 46, whioh is prodnced by and throngh an arm, 49, rigid at one end on the reciproeating rod 50, the forked end of whieh mm 49 rides in a groove, 51, about the bub of the pinion and wheel 48 47. The rod 50 is supported and has reciprooal motion endwise in bearings in the frame A, and has a eoiled spring, 52, about it inserted between the frame and a eollar on the rod, whieh spring,by and through the arm 49, rigid on the rod, forces the whee147 and pin LIS ion 48 back away from the disk 45. A lever, 53, pivoted at its lower end to the frame, is at its upper end attached to the rod 50. This lever 53 is provided centrally with a bearingwheel, 54, which impinges against asegmental guard or way-strip, 55, affixed to the side of the wheel 10, whereby when the wheel54isin contact with the waystrip 55 the rod 50 is forced forward, overpowering spring 52, and the wheel 47 is brought into contact with the disk 45. The pinion 48 meshes with the gearwheel 56, rigid on the driving-shait 7.

It will be seen that the friction-wheel 47 rotats constantly when the driving-shaft 7 isin motion, and that while the lever 53 is in contact with the way-strip 55 the wheel 47 Will be held np against the disk 45, whereby a reciprocating motion will be imparted to the presser. A1ug, 57, on disk 45, is adapted to impinge against and lie npon the onter free end of a coiled-spring buffer, 58, contained in a case affixed to the reciprocating rod 50, which buffer is withdrawn from the line of motion of the lug 57 as the wheel 47 is thrown into contact with the disk 45, and is retnrned t0 position in front of the lng as the wheel 47 and disk 45 are separated.

On the top of the frame, just in front of the former 1, is provided a pair of holders adapted 'to receive and hold the leather of which the stiftener is to be formed. Thes holders are convenient for use with some kinds of leather, but are not necessary for the perfect working of the machine ordinarily. These holders consist each of an inwardly-projecting bifurcate finger, 59, adjnstably attached at its re ar end to the top of the lrame, jointed centrally, and having the free inner bifurcate ends flattened vertically, so as to be adapted to receive and hold upright the leather strip between the bifurcate ends. These fingers are a little distance apart, so that the strip of leather of which the stiffener is to be fornied may be set within them, extending from one to the other in front of the former 1, and as thejaws 2 2 are moved forward to and about the former the front ends of the jaws will strike against the leather and the inner ends of these fingers 59, and Will swing them bac]; on their joints, as indicated by dotted limes in Fig. 3, and the leather by the forward movement of the jaws will be withdrawn from the fingers as it is forcedaronnd theformer. A small spring, 60,

- in front of each of these fingers, forces it back to position as the jaws are drawn back. The motion of this machine is such that when the wheel 10 comes to the position shown in Fig. 2 there is then lost motion in the pitmanmoved meehanism until the wrist-pin therein moves to the inner end of slot 12 in the pitman, and during this time, the presser being at the rear end of its travel and not over the former 1, the leather for a stifiener is inserted in the holders 59 59, and when thewheel 10 has made a half-revolution, carrying the wristpin forward to the opposite or front side, the jaws 2 2 have been forced forward about the former 1, and the guide 55 enters under the lever 53, throwing the friction-wheel 47 into contact with the disk 45, whereby the presser is given its reciprocating motion, of which there are eight strokes, while the lost motion between wheel 10 and the pitman occurs as the wrist-pin on the wheel passes from one end to the other of the slot in the pitman.

It will be understood that thestrip of leather of which the stiffener is formed is wider than the height of the former 1, and that after it is placed in the holders 59 it is first bent around the former by thejaws 2 2, and the part projeeting above the former is, when the presser is set in motion, tnrned inwardly by the curved front end of the presser-foot 36, and, as the presser-foot passes and repasses over it, is

pressed down,,forming the inwardly-projecting flange of the stiffener.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a machine for manufacturing heelstiffeners, a stationary former, in combination with two swinging shapingjaws closed yieldingly by springs and pivoted on a movable slide provided with mechanism whereby the jaws are moved up to and withdraWn from the former, and a reciprocating presser perated independently of the slide-moving mechanism, all arranged and operating substantially as described.

2. In a heel-stiffener machine, the stationary former 1, in combination with the movable jaws 2 2 and the adjustable jointed holders 59, substantially as described.

3. In a heel-stiffener machine, the movable jaw-snpporting slide 3, in combination with and operated by a rack, pinion, sector-gear, and pitman provided with a slot and attached to the wrist-pin of a wheel, whereby a recip rocal movement with a certain amount of1ost motion is secured, substantially as described.

4. In a heel-stiffener machine, the rack 19, construete d to travel in ways in the frame and operated by snitable mechanism, in combination with the swinging arms 25, connected to the rack by pivoted rods, and the movablejaws 2 2, substantiall y as described.

5. In a heel-stiffener machine, the rack 19,

constructed to travel in ways on the frame, with the thereto-eonnected and thereby-operated arms 25 and the spring-actuated boit 27, in combination with the movable slide 3, provided with arm 31, and the pinion'16, supported and rotating in lugs rigid on the slide 3, which pinion meshes with and is operated by an oscillating sector-gear, snbstantially as deseribed.

6. In a heeI-stiftener machine, the presserarm 32, provided with a chamber, 40, for the reception of the stem of the presser-foot, in combination with the presser-foot 36 and the therein-rotating roller 37, snbstantially as described.

7. In a heelstiftener machine, the presser: arm'32, supported on rods 34 34, to which it is pivoted in their npper ends, which rods are pivoted and supported at their lower ends on the frame, substantially as described.

8. In a heel-sbffener machine, the arm 32, supported and oscillating on rods 34 34, in combination With the presser-foot 36, having stem 38, and the spring 42, snbstantially as described.

9. In a heel-stifi'cner machine, the gearwheel 56, rigid on the di'iVingshaFt, bhe frictionwheel 47, 1igid t0 pini0n 48, meshing wihh geanwheel 56, and frictiondisk 45, provided Wibh a rigid arb0r, 46, which supports pinion 48 and whee147, in combination Wibh reeiprocating rod 50, which carries the rigid finger 49, which rod is actuated by a spiral spring, 52, and a cam-acbuated lever, 53, substantiaily as and for the purpose described.

10. In a heel-stiffener machine, che gearwheel 10, provided with a segmental guide or way-strip, 55, in combination With the lever 53, provided With a bearing, 54, in combina bien With the reciprocabing rod 50 and the aetnating-spring 52, substantially as described.

11. In a heel-sbiffener machine, the Iug 57, rigid on the disk 45, in combination with the buer 58, attached to the reciprocating rod 50, substantially as described.

12. In a hee1-stitfener machine, a presser athached by a e0nneeting-rod, 44., eccentrically t0 a friction-disk, 45, in combination Wibh lever 53, bearing intermitbingly against 3. guide, 55, on wheel 10, the therebyacbuated reciprocating rod 50, provided with spring 52 and finger 49, and the frictiomwheel 47, gnided by fmger 49, and geared to the driving-shafb of the machine, whereby a reciprocating motion is 0btained intermittingly by the presser, substanbially as described.

13. In a heel-sbiflener machine, a reciprocating presser-foot, 36, provided with an inwardly-curved front end, and a horizontallyrotating r0l1er, 37, substantially as described.

14. In a heel-sLifiener machine, the presserarm 32, having a chamber, 40, in combination with the presser-foot 36, provided with a stem adapted to enter chamber 40, and a spring, 42, adj usted by mat 41, snbstantially as described.

In testimonywhereof I afiix my signature in presence of two witnesses.

ELIJAII SH AWV.

VVitnesses:

C. T. BENEDICT, J AS. B. ERWIN.

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