USRE15448E - Heel gouging and lip cutting machine - Google Patents

Description

J. H. POPE. HEEL GOUGING AND LIP CUTTING MACHINE.

I APPLICATION FILED MAR. I3| I922. Reissued Sept. 5, 1922. 15,4480 3 SHEETS-SHEET l.

1. H. POPE.

HEEL GOUGING AND LIP CUTTING MACHINE. APPLICATION FILEDJJAR, 1a. 1922.

Reissued Sept. 5, 1922.

J.;H. POPE. HEEL GOUGING AND LIP CUTTING MACHINE.

APPLICATION FILED MAR. 13, I922.

15,448. 3 SHEETS-7$HEEI a.

Reissued Sept Reissued Sept. 5, 1922.

UNITED STATES PATENT OFFlC EQ vJosnrrc H. POPE, or HAMILTON, MASSACHUSETTS, ASSIGNOR To UNITED SHOE MACHINERY CORPORATION 0F PATTERSON,

NEW JERSEY.

NEW JERSEY, A CORPORATION OF EEEL-GOUGING- AND LIP-CUTTING MACHINE.

Original No. 1,396,143, dated November 8, 1921, Serial No. 262,295, filed November 13, 1918.

tion for reissue filed March 13, 1922. Serial No. 543,510.

To all whom it may concern: v

Be it known that I, JOSEPH H. Porn, a citizen of the United States, residing at Hamilton, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Heel-Gouging; and Lip-Cutting Machines, of which thefollowing is a specification.

This invention relates to cutting machines and is herein illustrated as 'embod iedin a machine for forming a'properly shaped C-Ollr cavity in the upper surface of a heel preparatory to attaching it to a shoe and breasting it. c j i v a In the manufacture of certain kinds of shoes the heel blanks are commonly formed with a concavity in their upper facesto fit the convexity of the heel end ofthesole and also" with a scallop at the breast end of the heels which is deeper than the concavity. Such blanks are commonly producedby operating upon them first in a heel gouging machine which roughs out the concavity and then in a heel compressor, which, besides compressing the heel, finishes the formation of the concavity and forms the scallop The scallop is produced by the action of a lip on one die of the mold of the heel. compressor; and from this circumstance thescallop has cometo be known in the art as a lip.

although it is really theimpression made by the lip of the die. The procedure which has been outlined above possesses the disadvantage that the breastend of theheel is condensed to such an extent by the action of the heel compressor that the subsequent;

breasting operation is rendered difiicult; and in. order to avoid this difficulty many manufacturers run the gouged heels through a lip cutting machine prior "to the compressing operation. in which case the degree of condensation at the breast end of the heel is less than would otherwise result;

According to one feature of the'present invention the heel gouging and lip cutting are performed in a single operation. In the illustrated machine the heel is clamped in a holder and moved past a properly'shaped rotarycutter so that t'heheel is traversed by the cutter from a point near the rear of the heel to the breast edge, means being provided for increasing thedepth of the cut Applica- Referring to. the accompanying drawings 1+ 1 Figure 1 is an elevation of a machine in which the present invention is embodied; Fig. 2 is an elevation of the head of the machine on an enlarged; scale; with certain parts broken away. I In thisjfigure one heel is shown as just having been placed in the machine and another as just having been delivered from the machine. i c Fig. 3 is an elevation looking to the left as the machine isviewed in Figs. 1 and 2 and showing more particularly the mounting of the. shaft by which the work holders are carried.

Fig. 4: is a perspective of part of the v ing mechanism. I V

Mounted on'the frame 5 of themachine is a rotary shaft 7 upon theend of which 17 is to guide the work holders in their.

movement past the cutter and to operate the clamp which'first holds and then releases the heels. tegral with it the bearings fora rotary shaft 19, said shaft being thus supported entirely by the cam, member. To the left of this shaft, as-viewed. in Fig. 1 orto the rear as viewed in' Fig. 3, thereis a vertical. slot 21-,

in the frame of the machine into which extends a vertical rib formed on the cam member;13: An adjusting screw 23 fur.- nishes means for raising and lowering. the cain member 13, and a screw bolt 25; extending through a slot 27 in the cam member and threaded into the frame of the machine holds the cam memb-er.in adjusted vertical position. The-purpose of this adjustment is to vary the'depth of cut of the rotary The=cam.memb'er 13has formed inupright shaft '33 has cutter 9. The shaft 19 near its rear end carries a spiral gear 29 which meshes with a second spiral gear 31 slidingly mounted upon an upright rotary shaft 33 but held from rotation with respect thereto by means of a key whichr'fits in a keyway 35. Clamped about the hub of the cam'member 13 by a pinch bolt 37 is a split collar 39 having extending therefrom a yoke 41 which engages the top and bottom faces of the spiral gear 31 to move it vertically when the cam member 13 is adjusted. The at its lower end a worm gear 43 which meshes with a worm 15 on one end of a short shaft t7 the other end of 7 which carries a worm gear 49 in mesh with a worm 51, the latter being loose on vthe driving shaft 53. The cutter shaft 7 is driven by a belt55 which passes around a pulley on the shaft 7 and a pulley 57 on the driving shaft 53. A friction clutch, shown in Fig. 4, the details of which form no part of the present invention, is controlled "by a treadle 59 to connect the worm 51 with the driving shaft 53, said latter shaft having the usual tight and loose pulleys and serving through a belt 61 to rotate a blower in a casing 63 which is connected'with the suction conduit 11. i I

F astened by a set screw;6 5 to the shaft 19 is {a carrier in theform of a bar- 67 to. the

ends of which at 69 are pivoted. work hold ers which are identical .in construction. Each work holder comprises a frame 71 and a clamp, 73 which is pivoted to the frame at 75. Each clamp is generally U-shaped with the base ofthe U, extending across .therear hes in a plane parallel to the axis of the a shaft 19 passing through the line 85; and

end of the frame 71 and provided with a tail 77 against which. one endof the coiled spring 79 bears, the other end bearing against a sleeve Slthreaded into a socket in the frame 71. The spring encirclesa guide rod. 83, which extends through. a slot in the tail 77. and tends to swing the clamp in a clockwise direction about its pivot 75. The work supporting face of the work holder when the clamp73 1s swung in a clockwise direction about the pivot 7 5, ears 87 which extend inwardly over the work supporting face of the holder arecaused to approach said Work supporting faceand thereby to cated by heel, which chas just been placed" in the holder; order to release the work, each, clamphas a 111;:89 projecting ton' ariiljthe clamp theworklQO firmly in placeon the holder. Referring to' Fig. 2, in which the direction OfIOtatlOIl of the carriers is inclihas been operated upon, while the clamp of thelefthand;holder is descending to grip a shaft 19 to whichis pivoted at,91 one end f link 93 the ther end of whichis piv- I the arrow, the clamp of theright hand holder has justreleased a heel which otedat 95 to a lever 97. This lever is piv. oted about the axis of the stud 69 and carries at its inner end a roll 99 which is at times engaged by the cam 17 to hold the clamp open.

Each work holder, during its revolution, is moved angularly by a roll 101 which runs in the cam track 15. This cam track is so shaped that the cutter starts at a point 200 near the rear end of the heel and traverses the top of the heel from that point to the breast edge. Just before the breast edge is reached a slight rise in the cam track 15 raises this end of the heel and causes the depth of the cut to be increased at thispoint to form the scallop or lip 300.

In the operation of the machine, power having been applied tothe cutter shaft and the blower, the operator stands facing the machine as viewed in Fig. 2 and depresses the treadle. Thiscauses the carrier 67 to be rotated very slowly. The rotation of the carrier brings the work holders successively into operative relation to the cutter. As each WOIk" holder reaches the approximate position of the left-hand holder in Fig. 2, the operator places a heel blank on the holder byslipping it under the cars 87 of 7 9 operates/the clamp to grip the heel blank. Hth the blank firmlygripped, the holder moves past the cutter, asshown in dotted lines in Fig. 2, and as has been explained, the depth of; the {cut is abruptly increased just before the heel breast is reached.

Although the invention has been set forth as embodied in a particular machine, it should be understood that the invention is not limited in the scope of its application to the particular machine which has been shown and described. 1 y

, Having thus described my invention, what.

claim as new and desire to secure by Letters Patent of the United States is 1. A machine ofthe class described, having incombination, a cutter, a holder for a heel, and, power actuated means for causing theheel tobe traversed by the cutter from a point near the rearof theheelto the breast thereof to form a gouge and for increasing, the depth of. the cut, at 'the breast. end. to form a-lip., i

2., machine of the. class described, having in combination, a rotary cutter, means forrotating the cutter, a holder for a heel, means forca'us'ingthe heel jto be traversed by the} rotating cutter from a point near'the rearofthe heel to the breast thereof,tand means acting toincrease the cut; at the breast end. .j i ,3, A na'chineof the class described, havi depth of r the i ing in combination, a cutter, means for rotating the cutter, a carrier, a heel holder mounted on the carrier. means for rotating the carrier to cause a heel held in, the holder to be traversed by the cutter from a point near the rear end of the heel to the breast thereof, and means for moving the holder during the cutting operation to increase the depth of the cut at the breast end of the heel.

4. A machine of the class described, hav ing in combination, a cutter, means for rotating the cutter, a carrier, a heel holder pivotally mounted on the carrier, meansior rotating the carrier to cause a heelheld in the holder to be traversed by the cutter from a pointnear the rear end of the heel to the breast thereof, and means for swinging the holder about its pivotal connection with the carrier during the latter part of the cutting operation to increase the depth of the cut at the breast end of the heel. 1 c

5. A machine of the class described, havingin combination, a cutter, means for rotating the cutter, a carrier, a heel holder mounted on the carrier, and means for rotating the carrier in a path the plane of which coincides substantially with theplane of the path of the cutter to cause the surface of a heel held in theholder to be cut in a direction longitudinally of the heel as it is moved past the cutter.

6. A machine of the class described, having in combination, a cutter, means forrotating thecutter, a carrier, a heel, holder mounted on the carrier, means for rotating the carrier in a path the plane of which coincides substantially with the plane of the path of the cutterto cause the su: at a heel held in the holder to lee-brought into contact with and moved past the cutter, and means for increasing the depth of the cut the breast end of the heel. I

7. A machine of the classdescribed, having. in combination, a cutter, a rotary car-- rier, a heel holder movably mounted on the carrier, means for rotating the carrier to bring a heel held in the holder into Contact with the cutter. and means for moving the holder on'the carrier during the cutting operation to cause the depth of the cut to be increased at, the breast end of the heel.

8. A machine of the class described. having in combination, a cutter, a rotary car rier, a heel holder pivotally mounted on the carrier, means for rotating the carrier to bring a heel held in the holder into contact with the'cutter, and'means for oscillating the holder on the carrier during the cutting operation to cause the depth of the cut to be increased at the breast end of the heel.

9. A machine of the class describe'thhaving in combination, a tool for operating upon a blank, means for operatlng the tool, a carrier, a. blank holder mounted on the carrier, means for producing relative movement between the carrier and the tool to pre sent to the tool a blank held in the holder", yielding means actuated independently of the operation of the tool for clamping the blank on the'holder, and means acting intermittently in opposition to the yielding; means for releasing the clamp.

10. A machine of the class described, liaring in combination, a cutter, a rotary carrier, a heel holder mounted on the carrier to expose the top surface of a heel held in the holder for the action of the cutter, means for rotating the carrier to present a heel held in the holder to the cutter, means for operating the cutter, yielding means "for clamping the heel on the holder, and means acting ing the clamp to heel-receiving position- .after the cutting operation and for holding it in such position to permit the cut heel to:

fall from the holder and to be replaced by an uncut one. I

12. A machine of the class described, having, incombination, a tool, arotary carrier, a work holder mounted on and movable with. respect to the carrier, means for rotating the carrier to bring a piece of work held in the holder into operative relation to the tool, and means whereby the carrier and the tool may be relatively adjusted initially toward and from each other to regulate the depth of action'of thetool. I

13. A machine of the class described, having in combination, a rotarycutter, a rotary carrier, a heel holder mounted thereon and capable of movement with respect thereto, means forrotating the carrierqwhereby the holder is revolved and caused in its-revolution to travel past the cutter in the plane of rotation of the cutter, means for controlling the movement of the holder with respect to the carrier, and means whereby the distance between the cutter and the axis of rotation of the carrier may be varied while maintaining unchanged the relative position of said axis and said controlling means.

14. A machine of the class desrrlbed, having in combination, arotary carrier, a heel holder mounted thereon and capable of movement with respect thereto, means for travel past the cutterin the plane of rotation of the cutter, stationary means for control and said controlling means.

ling the movement'of the holder with respect to the carrier, and means wherebythe distance between the cutter and the axis of rotation of the carrier may be varied. to vary the depth of the rut while maintaining unchanged the relative position of said 15. A machine of the class described, having in combination, a cutter, a' rotary shaft, a carrier mounted on the-shaft, aheel holder pivotallvi mounted on the carrier,'means for rotating the shaft to move the'holder. past 7 the cutter in the plane of rotation of the holder mounted on the carrier and movable into different positions with respect thereto, a cam member for controlling the movement of the holder on the carrier, said shaft being supported in hearings in said cam member, and means whereby the cam member and with it the shaft maybe adjusted toward and from said cutter.

17. In a machine for forming a concavity in the top or heel seat of heels for boots and shoes, the combination of a rotary cutten'a; heel holder, means for relatively traversing the rotary cutter and heel holder to cause the cutter to cut in a direction longitudinally of the top of a heel held in the holder, and means for giving a further relative movement of the cutter and heel holder to cause i the cutter to increase the depth of cutat the breast of the heel. I j

18. A machine of the class described,having in combination, a cutter and power actuated means for-causing a-heel blank to be traversed by the cutter from a point near the rear of the heel to the breast thereof and acting to change the direction of relative movement of the cutter and blank to increase the depth of the cut at the breastend to form a lip.

19. A machine of the class described, havthe rear of the blank ;to a point near the front end thereof, said means then being effective to change the angle of cut to increase the depth of the cut to a predetermined extent at the front end.

j A machine for simultaneously gouging and lip-ci1tting heel blanks comprising, in combination, a cutter, and power-operated means-for feeding a heel blank past the cutter and relatively moving the blank and the cutter to gouge the seat surface of the blank and to cut a scallop or liptat the breast end of thegouged surface.

21. A machine for simultaneously gouging and lip-cutting heel blanks comprising,

in combination, a cutter, a support to engage a heelblank and power operated means relatively to traverse the cutter and a blank on theisupport and relatively to move the blank and the cutter to vary the depth of the cut, to produce a compound gouging out on the seat surface of the blank providing a cavity to fit the seat surface of a shoe and an adjoining scallop'orlip of the form described. a

22A machine for gouging and lip cut-- ting the seat surfaces of multiple-lift heels comprising, in combination, cutting means, and means for feeding a flat heel past said means first to form a gouged seat surface and then to form a scallop or lip at the breast end of the heel at a greater depth than that of the gouged surface.

23.1! gouging and lip-cutting machine comprising, in combination, cutting means to form a scallop or lip at the breast end of a heel and to form a shallower gouged seatsurface adjoining the lip, and feeding means to present a plurality of heels in succession to the cutting means.

In testimony whereof I have signed my name to this specification.

JOSEPH H. POPE.

Images