US1049539A - Upper-pulling apparatus. - Google Patents

Description

J. 2.3001 1 UPPER PULLING APPARATUS.

APPLICATION FILED JULY 7,1910

Lw fiwu Patented Jan. *z, 1918.

l/l/mvasm' ww/vm/a UNTTETT STATES PATENT OEETQE.

JOHN EMERSON SCOTT, OF MARBLEHEAD, MASSACHUSETTS, ASSIGNOR, TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

incense.

Specification of Letters Patent.

Patented Jan. 7, 1913.

Application filed July 7, 1910. Serial No. 570,790.

To (ZZZ whom it may concern:

Be it known that LJoHN EMERSON Soorr'r, a citizen of the United States, residing at lllarblehead in the county of Essex and State'of Massachusetts, have invented certain Improvements in Upper-Pulling Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to apparatus for use in the manufacture of boots and shoes and particularly to upper pulling devices. It is herein shown for the purpose of exemplification as embodied in a hand pincer of thetype used by workmen in connection with thelasting and pulling-over operations.

In stretching an upper and drawing it inwardly over the shoe bottom there is always liability that the edge of the inner sole or sole will be lifted by engagement with the stretching upper and be crowded back from the edge of the last. In welt and turn shoes the innersole or sole is provided with a beveled or feather edge which as the upper stretched and drawn inwardly over the last, is particularly apt to be lifted by the same and to be turned or rolled up away from the last.

The object of this invention is to provide means for holding down the edge or the feather edge, as the case may be, according to the class of shoes operated upon and to prevent its being caughtby the upper and pulled up or displaced laterally from its proper position. i

A special ditl'iculty which it is an object of this invention to overcome is encountered in the manufacture of turn shoes or shoes which are assembled and lasted upon their single soles while these parts are inside out and then turned. The feather of the turn sole over which the upper is lasted is the portion of the sole which projects beyond the inseam after the shoe is turned and in the finished shoe. During the last--- ing operationihis feather necessarily projects more or less beyond the edge of the last so that in lasting turn' shoes it is particularly difiicult to avoid rolling up and crowding back this feather. Another special condition prevailing in turn shoe manufacture is that the soles are moist or in temper at the lasting stage in order that they may be flexible for the turning operation. This condition adds to the liability of displacing the thin edge of the sole while stretching the upper.

An important feature of this invention consists in combining with upper pulling pincers means for holding down the feather of the sole or innersole at and adjacent to the place where the stretching upper is liable to engage the edge of the feather.

It is also a further feature of this invention so to connect the upper pulling means with the described hold-down that the holddown has a movement or receivcsa pressure tending to produce movement downwardly in the direction reverse to that in which the upper is being pulled; and it is av further feature of this invention that the hold-down is so operated that it is capable of movement backwardlv or inwardly over the feather in time relation with any overdrawing movement. which the pincer may have.

The illustrated embodimentof this invention is a hand pincer and the hold-down is carried by the pincer but it is, obvious that the broad invention herein disclosed is capable of being applied to machine pincers as well as being embodied in various forms of construction.

A novel invention is disclosed in the illustrated arrangements in which the hold-. down comprises a member movably connected with the pincer for engaging the shoe at two points, one point being upon the feather and the other remote from the edge of the sole and the connection permitting transmission downwardly upon the sole of the pressure exerted by the pincers upon the upper. It is a characteristic of this construct-ion that the hold-down has a sliding contact with or abutment against a fixed projection from the pincer which may be the tack driving projection usually found upon hand pincers.

gresses so as to allow the pivoted fulcrum or downholdmember to bear upon the sole, backward movement of the downhold being prevented in this form, by a separate stationary abutment which may be embraced by the movable. hammer in its normal or operative position.

Still another feature of the invention is the provision of means whereby the downward pressure upon the two legs of the downhold member is at first nearly evenly divided and as the stretching of the upper progresses the bressure' is transferred from the inner leg, resting on the sole, to the' outer leg, resting on the feather. By this means the downward pressure on the feather is increased with the upward pull on the upper.

Figure 1 1s a side view of one form of drawn inward ready for the operation of securing the upper by tacking. Fig. 4 represents a modified form of the device in- ,vol'ving the principles exemplified in the first form; Fig. 5 shows the modified form of the device in operation.

The device shown in Fig. 1 of the drawings embodies the usual type of lasting pincers having curved jaws 2, 4, the lever handles 3, 5, and a downwardly projecting member 6 which serves, in the ordinary use of hand pincers, alternately as aw fulcrum about which the pincers are operated as a lever by depressing the handles 3, 5 when the upper is gripped and as a hammer head for driving a tack after the upper has been stretched and drawn inward over the last. The present invention is herein shown as embodied in an attachment for this common aw of the pincers and the lower ends of the said member to the crescent-shaped downholdmeinber at 14. The rear face 16 of the member 8 bears against the face 18 of the rigid abutment 6 which serves to guide and direct relative movement of the pincers and the sole rest. A spring 20 is provided which bears against the cross bar of the H-shaped member and is seated in a recess in the lower face of the jaw 2, which spring acts to hold the member 8 normally in the position shown in Fig. 1 with the point or cusp 22 of the crescent-shaped member 8 in depressed position and against theabutment 18 the upper and against the edge or feather.

edge of the-sole, so that upon farther downward movement of the pincer handles a positive pressure is exerted upon the feather-edge of the sole in' direct proportion to the upward pull upon the upper. In this manner the elevation of the edge or feather by the movement of the upper thereover is positively prevented. From an in spection of Fig. 3 which shows the parts of the device in their extreme stretching posi-- tion (in full lines), it will be seen that as the parts advance from the position shown in Fig. 2 to that of Fig. 3 the H-shaped link member and the forward part of the crescent-shaped down-hold 8, which bears the cusp or leg 24, form a toggle joint with the pressure on the cusp 22 tending to straighten the toggle. In the initial position (Fig.2) the downward pressure on the divided fulcrum is substantially evenly divided between'the legs or cusps 22 and 24 but as the stretching advances the pressure is transferred more and more to the leg or cusp 24 and hence the hold-down effect on the feather increasesias the tension on the upper increases. When the upper has been sufliciently stretched by bringing the parts to the position of Fig.3 the deviceis drawn inwardly to bring the upper over the sole to the position shown in dotted lines in Fig. 3, the feather engaging point or leg of the sole rest member 8 being of course drawn inward at the same time. The operatornow holds the upper against the edge of the. sole with the thumb of his left hand and with the thumb and forefinger of his right. hand, which still holds the pincer handles, inserts a tack through the upper into the sole in the proper :place to secure the upper in its stretched and overdrawn position. blow from the hammer head 6 of the incers.

In Figs. 4 and 5 is represented a orm of the device in which the cusp 22 of the crescent-shaped sole-edge downhold does not ex- He then driven the tack with a tend normally below the face of the ham- .mer member, as this provision is found desirable in practice. In this form of device. the curved member 8 and the H-shaped member 10 are substantially identical with those of the form already described. In

place of the hammer head shown in Fig. 1, however, there is provided a rigid abut- I ment 6 against which the convex side of the curved member bears and is thereby restrained in its movement longitudinally of the device, the'function of this abutment, as far as its relation to the curved member is concerned, being identical with that of the hammer head of the form shown in Fig. 1. For driving the tack there is provided a hammer memben 7 pivoted at 26 just back of the base of the rigid abutment 6. During the pulling-over operation this hammer head'7 must be swung out of the way so that the legs or cusps 22 and 24 may act as fulcrums for the pincers. This is accomplished by connecting the head 7 by, the links 28 to the end of the member 8 near the cusp 22. The links 28 are arranged one on each side, and are pivoted at one end by the pin 32 to the member 8 and at the other end by the pin 34 to the hammer member 7. liy

this connection it will be apparent from Fi 4 and 5 that as the point 22 ot' the curved member 8 is brought to bear upon the sole of the shoe and is thereby elevated during the stretching of the upper the head 7 will be swung backwardly, as shown in Fig. 5, entirely out of the way of the operation of the curved member 8. hen the pulling-over operation has been completed and the pincers are released the parts are brought back to their original position, as shownin Fig. 4, by means of a spring 30 wound about the pivot 26 and one end thereof attached to the head 7 in some suitable manner, as by threading it through the pivot pin 34 ot the link 29, and the other end. to the jaw oi. the bincers, as by threading itthrough the pivot pin A similar spring is arranged in the same way on the opposite side of the tool.

The operation of this form of the device,

being substantially the same as that of the form first described, will now be readily understood Without further details.

It will be of course understood that the member referred to as the curved or crescent-shaped member 8 is so named n'icrely for the purpose of identification in the drawing and that this member may be variously shaped and be connected to the pinccrs in various ways without destroying its function as a sole edge down-hold and as a tulcrmn for the hand levers 3 and 5.

The provision inhand lasters pincers of means for positively holding down the feather-edge of a sole during the stretching operation on the upper is believed to be entirely novel and I do not wish, therefore, to be limited to the specific means herein disclosed for accomplishing that object, but

Having explained the purpose and function of my improved device and having shownmechanical embodiments thereof "1. A hand lasting pincer, comprising in combination, crossed levers having the longer arms thereof formed as handles and the shorter arms thereof formed as 00- operating jaws, sole edge engaging means operatively associated with the lower jaw of the pincer and between which and said jaw there is relative movement to enable it to engage and to hold down the sole edge during the upper stretching operation.

2. A hand lasting pincer, comprising in combination, crossed levers having co6perating handles on their longer arms and cooperating jaws on their shorter arms, and means acting with continuous pressure 011 the same portion of the feather edge of the innersole to hold down the same during the upper stretching operation effected by the pincer.

3. A hand lasting pincer, comprising in combination, crossed levers having the longer arms thereof formed as handles and the shorter arms thereof formed as oooperating jaws and a member directly associated with the inner one of the upper pulling jaws and relatively to which the jaws move in pulling the upper in a direction to cause it to press down the feather of the sole with increasing force as the upper is pulled.

1-. hand lasting pincer combimilion crossed levers havingthe longer arms thereof formed as handles and the shorter a rms thereof formed as cooperating jaws, means for holding down the sole edg and means whereby the pressure applied thereto increases faster than the pull on the upper is increased.

5. A hand lasting pincer comprising in combination crossed levers having the longer arm thcrcol' formed as handles and the shorter arms thcreot' formed as cooperating jaws, means for positively holding down the sole edge during the stretching of the upper, and means whereby the downwitrd pressure on the edge is 'aried at a rate ditlercnt from that at which the upward tension on the upper is varied.

(3. A hand lasting pincer comprising in combination crossed levers having the longer arms thereof formed as handles and the shorter arms thereof formed as cotiperating jaws t'or straining the upper overthe last, a down-hold for the feather edge of the sole. and means whereby, as the upper yields to the strain, the pressure applied to the downhold approaches in degree the pull on the.

upper.

71,11 a bination, crossed levers having cooperating comprising in lasting pincers comprising, in com-H handles on their longer arms and cooperating jaws on theirshorter arms, a fulcrum member having a sole edge engaging portion arranged in close proximity to the rear face of the lower jaw to engage and hold down the edge of the shoe sole and .a separate bearing portion to engage the sole remote from its edge and a pivotal or fulcral connection between said member and said jaws.

'8. A hand pincer having upper seizing and pulling jaws, an abutment acting as a fulcrum for the pincer, a hammer projection on the lower side of the pincer which is movable during the use of the pincer to a position away from the abutment to permit close approach of the pincer to the work, and means for automatically returning said projection into operative position toward said abutment.

9. In hand lasting pincers, means whereby the upper may be stretched over the last and i sole of a Goodyear welt or turn shoe, means acting on the depressed marginal edge of the sole and operatively connected with the stretching means to receive downward pressure during the stretching operation to force the sole edge downupon the last bottom.

10. In a device of the class described, pincers providedwith curved jaws and a rigid abutment, means pivoted to the lower jaw and operatively engaging said rigid abutment and adapted to bear upon the feather edge of a sole and upon a portion of the sole farther from the edge while the pincers engage the upper, whereby pressure is applied to the feather-edge as the upper is pulled over by the pincers.

11. In a device of the class described, pincers provided with curvedjaws and a rigid abutment located on one jaw inside the curve thereof, a crescent-shaped member, links,

pivoted to said member and said jaw whereby the crescent shaped member issupported with one cusp adjacent the jaws and the other cusp adjacent the abutment, and means 'for normally holding the latter cusp defulcrum memberand said hammer memberswhereby the latter is swung out of operative position as one end of the'fulcrum member is elevated, and means for. returning the hammer member to operative position when pressure on the fulcrum member is released;

14. The combination with lasting pincers, of a fulcrum member, a pivoted hammer member and means whereby the hammer member is swung out of operative position as the upper is pulled, and means for returning the hammer member to operative position when pressure on the fulcrum member is released.

15. The combination with lasting pincers, of fulcrum means engaging the-sole at the edge and elsewhere, and means whereby, as the upper is pulled, fulcral pressure is transferred from one fulcrum engagingv point to another.

16. In an apparatus of the class described,

jaws to grasp and pull an upper, lovers to which thejaws are connected for hand op-' the innersole of a welt or the sole of a turn shoe during the upper stretching-operation. -17. In an apparatus of the classdescribed, jaws to seize and pull-an upper, a sole edge downhold, a link conecting the downhold to one of the jaws and forming with the downhold a toggle, and means cooperating with said parts to efiect relative movement in the direction to strengthen the said toggle during the upper pulling operation.

18. In an apparatus of the class described,

jaws to seize and pull an upper, a sole edge downhold, a link connecting the downhold to one of the jaws and forming with the downhold a toggle, and means cooperating with the downhold and the jaws to guide and direct relative movement in the direction to straighten said toggle as the upper pulling operation proceeds.

19. In an apparatus of the class described, the jaws 2 and 4: pivotally connected for relative upper seizing movement and having thelevers 3 and 5 for effecting upper pulling movement, the hold-down 8, having the legs 22, 24, the link 10 connecting the hold-down to the jaw 2, and the abutment 6 secured to the jaw 2 and engaging the hold-down during the upper stretching operation to-guide and direct relative movement of the jaws and the hold-down in the direction to move the link and the leg 24 of the hold-down toward alinement.

20. In an apparatus of the class described, the jaws 2 and 4 pivotally connected for relative upper seizing movement and having the levers 3 and 5 for effecting upper pulling movement, the hold-down 8, having the legs 22,24, the link 10 connecting the hold-down to the jaw 2, the abutment 6 secured to the "jaw 2 and engaging the hold-down during the upper stretching operation to guide. and direct relative movement of the jaws and the rciatee hold-down in the direction to move the link and the leg at of the hold-down toward alinement, the hammer member pivotally connected to one of the jawsfand the link 28 connecting the hold-down with the hammer member to swing the latter backwardly during the upper pulling movement.

21. in an apparatus of the class described, jaws to seize and pull an upper, a lever to actuate the jaws and toggle members one of which is connected with the jaws and the other of which is adapted to rest on the sole and which are arranged to be moved by the operation of said lever in the direction to straighten them for the pulling operation.

22. In an apparatus of the class described, jaws to seize and pull an upper, a lever to actuate the jaws, a sole rest having a portion arranged to engage the sole remote from its edge and a portion which is arranged to engage the sole adjacent to its edge and to term a toggle member, alink pivotally connected to said member and to the upper pulling means and forming a second toggle member, and an abutment on the upper pulling means which has sliding engagement, with the rear portion of the sole rest to control movement in a path to straighten the to gle members.

23. 11 an upper pulling apparatus, a pincer comprising cooperating jaws and operating hand levers, a sole rest formed to engage the feather of a sole and to overlie the shoulder and engage the sole back of the feather and upon which the pincers are fulcrumed, and means for maintaining normal pivotal relation of the .sole rest and the pincers.

cer comprising aws and an operating lever, a sole rest formed to engage the feather of. a sole and to overliethe shoulder and engage the sole back of the leather and a link forming a movable fulcrum for the pincer and connecting the pincer to the sole rest.

, 25. In an upper pulling apparatus, a pincer, a hold-down tormed and arranged to the hold-down, as and 24. In an upper pulling apparatus a pin-,

engage the featherof a sole, and a connec tion between the pincer and the hold-down to cause the pincer to be moved backwardly from the edge of the sole during overdrawing movement of the pincer.

26. In an upper pulling apparatus a pincer, a'holddown.formed and arranged to engage the feather of a sole, said parts being connected to allow the pincer to have a combined upper stretching and initial overdrawing movement while the hold-down prevents displacement of the sole edge andthen to permit the hold-down to be'moved inwardly from the edge of the sole with the pincer when thelatter is manipulated to lay the upper down upon the sole.

27. A hand pincer having upper seizing and pulling jaws, a sole'rest and a hammer projection which is automatically moved from operative position during the upper t wt pulling operation and returned after operation.

28. A hand pincer having upper seizing and pulling jaws, an abutment and a hammer projection on the lower side of the pincer which are movable relatively during use of the pincer toward and from ositions to permit close approach of the pincer to the shoe bottom.

29. An apparatus of the class having in combination, upper pulling jaws anda hold-down which rests on the feather of the sole during the upper stretching operation and drags inwardly over the feather in advance of the upper during the overdrawing operation, and means by which the pincers may be operated independently of scribed.

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

JOHN EMERSON SCOTT.

Witnesses FREDERICK L. EnMANns, ELIZABETH C. Coors.

for the purpose dedescribed,

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