US1111791A - Machine for operating upon soles. - Google Patents

Description

F. M. PURBER. MACHINE FOR OPERATING UPON SOLES.

APPLICATION FILED DEO.11. 1911. 1 1 1 1 79 1 Patented Sept. 29, 1914.

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F. M. FURBER. MACHINE FOR OPERATING UPON SOLES.

APPLICATION FILED DBO. 11. 1911. v 1,1 1 1 ,79 1 Patented Sept. 29, 1914.

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F. M. FURBER. MACHINE FOR OPERATING UPON SOLES.

APPLICATION FILED DEC. 11 1911. 1,1 11 ,791 I Patented Sept. 29, 1914.

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UNITED STATES PATENT OFFICE.

FREDERICK M. FURBEB, 0F REVERE, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF EATER-SON, NEW JERSEY, ,ACORPORATION OF NEW JERSEY. r,

To all whom it may concern I, FREDERICK. M. FUR- characters on the drawings indicating like parts in the several figures.

The present invention relates to machines for manufacturing boots and shoes and is herein illustrated in-connection with a machine for cutting off the ends of a mock welt. In some classes of McKay work it is cus' toinary, in order to improve the, appearance of the finished shoe, to attach a mock welt to the out-sole; and it is essential, in order to produce a satisfactory joint between the in-sole andthe mock welt, that the ends of said welt be alined and beveled, this oper ation being known as ,welt butting.

The general object of this invention is to produce a machine which is capable of operating upon a welt or similar piece of stock in the manner indicated above and to this end one feature of the invention consists in the provision in a machine of the class described of a bed for supporting a piece-of stock, a knife, and means for causing relative movement between said knife and bed first to bring the knife above the stock and then to cause the knife to shave off a portion of the stock. In the illustrative machine the knife carrier is movable, the knife being moved back-foremost over the stock and then edge-foremost to perform the cutting operation. i

In attaching the welt, which is commonly accomplished on a sewing or tacking machine, no careful attention is given to the location of the ends of the attached welt. As a result these ends commonly extend on to the heel seat of the sole. are free and may curl up, slightly from the face of the sole. Moreover, the point at which the stitches, or other series of fastening means, begins on one side is not properly alined with the point at which the series ends on the other side. It is thus desirable that the fastening means he cut for a predetermined distance prior to the severing or butting of the welt b r fdrmed in such a manner that the ends of the Specification of l 'ietters Patent.

a citizen of the United States, residing Machines for Operating theknife andthat this cutting be per-' MACHINE FOR OPERATING UPON SOLES.

Patented Sept. 29,1914.

Application filed December 11, 1911. Serial No. 664,965.

welt remain attached to the sole at points which are properly alined.

Accordingly, another. feature of the in vention consists in the provision in a machine of the class described'of a support for apiece of stock having asecond, piece fas tened thereto, a fastening cutter, means for producing relative movement betweenjsaid;

cutter and support 'to cause the cutter and support to be moved relatively longitudinally of the piece to disconnectthe end of one piece, and means'for severing the dis-1 connected end. In the: illustrative machine a motion is imparted to the fastening cutter which is forced between the ends of the welt Land the face of the sole on the forward stroke while on the rearward stroke the ends of the welt are severed by thewelt butting knife.

it is desirable that the heel seat of the sole he leveled or fleshed so as to leave at that portion of the sole nothing but good firm stock, and a further feature of the, invention consists in the provision in amachine of the class described of a support for a sole having a welt attached thereto and means for successively butting the welt and iieshing the heel seatof the sole. In the illustrative machine a gage ,or presser' is provided which bears a fixed relation to the knife during ,the fleshing operation and thereby determines the depth of the cut; and in order to promote compactness ofthe mai chine the fastening cutter, which has been referred to above, is constructed and arranged to serve also as thisgage or presser. With this construction the combined fastening cutter and gage is forced on the forward stroke between the welt and the sole, and on the return strokeis held in fixed relation to the knife during the fieshing of the heel seat of the sole;

These, and other features of the invention including certain details of constructionand combinations of parts will be described in connectionwith an illustrative machine and pointed out in the appended claims.

Referring now to the accompanying draw.- ings Figure l isa plan of a machine in which the present invention is embodied; Fig. 2 is a side elevation of the machine, the carriage being shown in dotted lines in one of its extreme positions; Fig. 3 is a longitudinal section of the forward portion of the and the heel seat of the illustrative machine there is provided a I yielding bed comprising a base 9 having a in its movements by screw bolts caused to take alongand the rod 23 and the carrier should flanges of the knife carrier 7 plate 11 fast to its upper face and being supported by springs 13, said bed" being guided 15. The plate llis held in place by screws 17 and is provided on its upper surface with a corrugated portion whereby the sole may be held firmly in place. The knife carrier 7 is pivotally supported by the carriage 5, said carrier comprising a sleeve fastened by pins 19 to a rock-shaft 21 which is rotatably mounted in bearings in the carriage.

It is essential that relative movement be place between the knife and the stock supporting bed, and in the machine shown the knife carrier is reciprocated by means of a connecting-rod 23 pivoted at 25 to a rotatable segment 27, This segment is driven through suitable gearing from a shaft 29 provided with fast and loose pulleys 31 and 33 and is so controlled by suitable clutch and gear mechanism that upon depression of a treadle, which is attached to the cord 34, (see Fig. 3), the segment will be caused to make a complete revolution and come to rest. The clutch and gear mechanism will not be described in detail since any suitable mechanism of this type may be employed. It may be stated, however, that the mechanism which is outlined in the present application is shown and described in detail in my co-pendingapplication Ser. No. 465,626. The pivot 25 may be adjusted clamped in any desired position in the channel 35, said channel being struck about the axis of rotation of the gear 37 as a center so that while the carriage 5 moves always in the same closed path, its initial position may be varied.

As will be explained presently, the knife carrier 7 in the operation of the machine rocks about the axis of the shaft 21. It is therefore necessary that the joint between be, constructed so as to permit this rocking movement. Accordingly a block 39 which fits between the two downwardly extending is pivotally mountedabout an axis parallel to the axis of the shaft 21 by means of pivot screws 41 which pass through the said two flanges and are threaded into the block. The block is provided with a slot 43 to receive theend of the rod 23, and through this slotted porcarriage 5. In

tion of the block and the end ofthe connecting-rod 23 passes a pivot pin 45. In order to permit the knife "carrier to move angularly about the axis of the shaft 21 as well as to limit the extent of this movement, the heads of the pivot-screws 41 pass through comparatively large bores 47 in the upstanding flanges of the carriage 5. It will be understood that the downwardly extending flanges of the knife carrier fit between the upstanding flanges of the carriage 5.

If now a sole ha ing a' welt attached thereto is placed upon the bed and the seg ment 27 caused to make a revolution the i welt-butting cutter herein shown as a knife 49 will first'be raised and moved over the sole and then on the return movement will be brought down upon, said sole so 'as to out off the ends of the welt, and to prevent the knife from being brought too close to the bed, a stop 51 is provided on the knife carrier which cotiperates with a stop 50 on the order, however, to'insure that the knife shall be rocked about the axis of, the shaft 21 at the proper time and held in firm engagement with the stock during the return stroke, the following mechanism is provided To one end of the shaft 21 there is fastened by a pin 52 an arm 53 which-carries at its lower end a bearing member 55 for v a rod 57, said rod having fast on'its end a collar 59 provided with a socket to receive av stop-pin 61. This stop-pin is driven into the bearing member 55, and the socket of the collar is normally held in engagement with it by means of a coiled spring 63, have ing one endfast to a collar 65, which is rigid with the rod 57, and the other end fast to the bearing member 55, saidspring being at all times under tension" and tending to ro tate the rod 57 in a clockwise dir ction as viewed in Fig. 1. WVith this construction the rod is normally held in the position shown in the drawings and tends to return to that position at all times. i

Fast to the rear end of the rod 57 is a cam 67 having an inclined upper face which is arranged, when the carriage 5 is moved forward, to engage a roller 71 rotatably mounted upon a fixed stud 73, the action of the cam and roller being to depress the rear end of the rod 57 and therebymovethe rock shaft 21 angularly to raise the knife carrier, said movement being resisted by a coiled spring 79 having one end fast to the knife carrier 7 and the other end fast to the sliding carriage In order to release the'knife carrier at the proper time so as'to permit the knife to v be forced into the stock, the cam 67 is provided with a tappet 75 with which a wiper 77 fast to the connectingrod 23 coiiperates to move the cam 67 angularly from beneath the roller 71. In Fig. 2 the rod 57 is shown in dotted lines at its forward positionat the time at which the wiper 77 is about to engage the tappet and move the cam. 67 from beneath the roller 71, it being understood that as the wiper 77 becomes disengaged from the tappet 75 and the sliding carriage moves backwardly the spring 63 will return therod 57 to its normal angular position. i

Disengagement between the wiper and tappet is arranged to take place after the carriage has started upon its return movement and while the knife carrier is approximately in the position shown in dotted lines in Fig. 3. It will be noted that the pull of the connecting rod on the return stroke of the carriage will tend to cause the knife to shear off the ends of the welt, and will supplement the action of spring 79 in returning the rod 57 to its normal position,

"As has been explained above, it is desirable that the ends of the Welt be disconnected from the sole for a certain distance and that means be provided for determining the amount of stock which is to be removed from the heel seat of the sole. Accordingly, there is mounted upon the carriage 5 a combined fastening cutter and gage 81 having a beveled edge, which is adapted to be forced beneath the ends of the welt, and a flat under face which serves to depress the sole and thereby limit and determine the depthto which the knife shall enter the heel seat. Thiswill be clear from an examination of Fig. 3 wherein it will be seen that the edge of the knife 49, when the knife carrier is at the extreme limit of its left-hand movement,

extends beyond and beneath the edge of the fastening cutter and gage 81. Although the members 81 and 49 have been referred to as a gage and a knife itwill be apparent that together they form a pair of shears which open to receive the ends of the welt and close to shear off said ends.

The length of the cut produced depends on the location of the soleupon the bed; and if the under face of the knife is used as a stop, it will be evident that the initial position of said knife can be made to control the extent of the cut. The purpose of the segment 27 will now be clear, since by adjusting the pivot 25 along the channel 35, the

carriage and with itthe knife may be caused to start and come to rest in any desired position in the fixed path of the carriage.

The operation of the machine is as follows :The pivot 25 is adjusted to the desired position and the sole is placed upon the bed with the edge of the heel in contact with the under sideof the knife 49. The treadle is then depressed'to cause the segment 27 to make a complete revolution. As the can riage moves forward the knife andgage ride up onto the heel of the sole 100 thereby depressing the bed against the force of the springs 13; and presently,'wh en the cam 67 is forced beneath the roller 71, the knife is 'raised to permit the ends of the welt 102 to pass between it and the gage 81, said gage being forced between the ends of the welt and the face of the sole to cut for a predetermined distance the stitches or other means by which the welt is attached. The relative position of the gage or fastening cutter and the knife at the end of the forward stroke of the carriage is shown in Fig. 3, the knife carrier being held from farther movement in a counter-clockwise direction by the ends of the screws 41 which are then in contact with the walls of the bores 47 in the carriage 5.

As the carriage begins its return movement the wiper 7 7 strikes the tappet 7 5 thereby turning the rod 57 in opposition to the coiled springs 63 and releasing the cam 67 from engagement with the roller 71. The knife, under the combined action of the connecting rod 23 and the spring '79, is thereupon caused to coact with the gage 81 to shear off the ends of the Welt; and during the farther return movement of the carriage the knife and gage are held in fixed relation with respect to each other the edge of the knife extending slightly below the under face of the-gage. The effect of the whole operation of the machine is thus successively to but or cut off the ends of the welt and to flesh or even the heel seat, the finished product being shown in-Fig. 4.

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

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A machine of the class described hav- .ing, in combination, a bed for supporting a.

piece of stock, a knife, yielding means for permitting relative movement in a given direction between said bed and knife, and means for causing relative movement 111 another direction between said Knife and bed first to bring the knife above the stock and then to cause the knife to shave 05 a portion of the stock. I

2. A machine of the class described hav ing, in combination, a bed for supportinga piece of stock, a knife, yielding means for permitting relative movement between said bed and knife, and means for moving said knife back-foremost over said stock and then edge-foremost to shave off a portion of said stock.

3. A machine of the class describedhaving, in combination, a bed for supporting a piece of stock, a knife located in front of said stock with its back presented toward said stock, and means for causing the knife to traverse the stock back foremost and then for reversing the direction of movement to cause the knife to enter the stock.

4. A machine of the class described having, in combination, a bed for supporting a piece of stock, springs arranged to permit the bed to yield, a knife arranged at an angle to the surface of the bed and having its back toward said stock, the edge of the knife being located nearer to the surface of the bed than is the upper surface of the stock, and means for causing the stock to be traversed by the knife first in adirection to cause the bed to yield and then in a direction to cause the knife to enter the stock.

5. A machine of the class described having, in combination, a bed for supporting a piece of stock, a knife arranged at an angle to the surface of the bed and having its back toward said stock, the edge ofthe knife be ing located nearer to the surface of the bed than is the upper surface of the stock, springs arranged to permit relative yielding movement between said knife and bed, and means for .causing the stock to be traversed by the knife first in a direction to cause the bed to yield and then in a direction to cause the knife to enter the stock.

6. A machine of the class described having, in combination, a support for a piece of stock having a second piece fastened thereto, a fastening cutter, power actuated means for producing relative movement between said cutter and support to cause said cutter to be forced between said pieces of stock to disconnect the end of onepiece and similar means for severing the disconnected end.

7. A machine of the class described having, inv combination, a support for a piece of stock having a second piece fastened thereto, a fastening cutter, yielding means for permitting relative movement in a given direction between said support and cutter, means for producing relativemovement in another direction between said support and cutter to cause said cutter-to be forced between'said pieces of stock to disconnect the and means for severing they end of one piece,

disconnected end. 7 p

8. A machine of the class described having, in combination, a support for apiece of stock'having a second plece fastened thereto, a fastening cutter, yielding means for permittingrelative movement between said suppo'rt'and cutter, means for forcing said cutter between said pieces of stock to disconnect the end ofonepiece and means.

for severing the disconnected end.

9. A machine of the class described having, in combination, a support for a sole having a welt fastened thereto, a fastening cutter, means for moving the fastening cutter in the direction of the length of the sole to force said cutter between the ends of the welt and the face of the sole and means for cutting off said ends.

10. A machineof the class described hav- :ing, in combination, a support for a sole having a welt fastened thereto,.a fastening cutter, means for producing relative move-.

having a welt fastened thereto,a carriage, a

fastening cutter-rigid with said carriage, a welt butting knife pivoted to said carriage, means for producing relative movement between said support and carriage, means responsive to said relative movement for raising the knife to'permit the fastening cutter to be forced between the ends of the welt and the face of the sole, and .means for bringing the knife'down upon said ends.

12. A machine of the class described having, incombination, a support for a sole having a welt fastened thereto, yielding -means for sustaining said support, a carriage, a fastening cutter rigid therewith, a

welt-butting knife pivoted thereon, means for producing relative movement between said support and carriage, means responsive to said relative movement for raising the knife to permit the fastening cutter to be forced between the'ends of the welt and the face of the sole, and means for bringing the knife down upon said ends.

18. A machine of theclass described hav ing, in combination, a support for a sole having a welt attached thereto, a knife, and

means foifimovin -saicl knife first in a path inclined to the plane of the sole and then in a path parallel to said plane whereby the welt is butted and the heel seat fleshed in a single operation.

14-. A machine of the class described having, in combination, a support for a sole having a welt fastenedthereto, springs for sustaining saidsupport, a carriage, a com- .bined fastening cutter and gage, and a knife mounted on sald carriage, means for causing relative movement between said carriage and support whereby said knife and gage are pressed against said sole, means for raising the knife to permit the gage to be forced beneath the'ends of the welt to support them, and means for causing the knife successively to sever the ends so supported and to flesh the'heel seat of'the sole.

15. A machine of'the class described having, in combination, a support for a sole having a welt fastened thereto, a carriage, a pair ofshears mounted on said carriage, means for producing relative movement between said carriage and supportto cause said shears to approach the ends of said welt,

means for opening 'saidsh'ears to permit the.

ends of the welt to pass between them, and means for closing said shears to sever said ends.

16. A machine of the class described having, in combination, a support for a sole having a welt attached thereto, a pair of shears, means for producing relative movement between said support and shears to cause said shears to traverse the heel seat of said sole, means for opening said shears to permit the ends of the welt to pass between them, and mean for closing said shears to sever the ends of the welt.

17. A machine of the class described having, in combination, a support for a sole having a welt attached thereto, a pair of shears, yielding means for permitting relative movement in a given direction between said shears and support, means for producing relative movement in another direction between said shears and support to cause said shears to traverse the heel seat of said sole, means for opening said shears to permit the ends of the welt to pass between them, and means for closing said shears to sever the ends of the welt.

18. A machine of the class described having, in combination, a support for a piece of stock having a second piece fastened thereto, a pair of shears, tive movement between said support and shears to cause said shears to press one of the pieces of stock down upon said support,

means for separating the edges of the shears to permit the end of the other piece of stock to pass between them, and means for moving one member of said shears toward the other to shear ofi said'end.

19. A machine of the class described, having, in combination, a support for a piece of stock having a second piece attached thereto, a pair of shears, yielding means for permitting relative movement in a given direction between said support and shears, means for producing relative movement in another direction between said support and shears to cause said shears to press one of the pieces of stock down upon said support, means for separating the edges of the shears to permit the end of the other piece of stock to pass between them,

01f said end.

20. A machine of the class descrlbed having, in combination, a support for a sole havmeans for producing rela-- and means for moving one edge of said shears toward the other to shear ing a welt attached thereto, a welt butting cutter, said support and cutter being relatively movable, and means for causing said support and cutter to come to rest in diiferent relative positions. 21. A machine of the class described havmg, in combination, a support for a piece of stock, a knife, means for causing relative movement between said knife and support, first to bring the knife over the stock and then to cause the knife to shave off a portion of the stock, and means for causing said support and knife to come to rest in different relative positions.

22. A machine of the class described having, in combination, a support for a sole having a welt attached thereto, means movable in a path of uniform length over said sup port and acting to sever the end of said Welt, and means for varying the point at which said movable means starts and comes to rest.

23. A machine of the class described having, in combination, a bed for supporting a piece of stock, springs arranged to permit said bed to yield, a knife arranged at an angle to the surface of said bed and having its back toward said stock, the back of said knife serving as a gage or stop against which the edge of the stock is placed, and means for causing the stock to be traversed by the knife first in a direction to press the stock against the bed and then in a direction to cause the knife to enter the stock.

24. A machine of the class described having, in combination, a yielding bed for sup porting a sole, a knife the plane of which is inclined to that of the bed, the cutting edge of said knife being located nearer to said bed than is the upper surface of said sole, means for causing relative movement between said bed and knife in a direction parallel to the plane of said bed to cause the edge of the knife to traverse a portion of the sole and thereby force the bed to yield, and means for reversing the direction of movement to cause the knife to shave ofi a portion of the sole.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERICK M. FUR-BER.

Witnesses:

CHESTER E. Roenns, LAURA M. Goomnnen.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

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