US1295129A - Lasting-machine. - Google Patents

Description

C, DE IVHNICO.

LASTING MACHINE. APPLICATION F lLED FEB. 17, I9l?- Patented Feb. 25, 1919.

CHARLES DE MIN 1G0, 0F PORTSMOUTH, OI-IIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPO- RATION OF NEW JERSEY.

LASTIN G-MAGHIN E.

Specification of Letters Patent.

Patented Feb. 25, 1919.

Application filed February 17, 1917. Serial No. 149,227.

To all whom it may concern Be it known that I, CHARLES DE MINIoo, a citizen of the United States, residing at Portsmouth, in the county of Scioto and State of Ohio, have invented certain Improvements in Lasting-Machines, of which the following description, in connection with the accompanying drawings, is a speci fication, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to lasting machines of the type by which a shoe upper is worked over a last and secured step-by-step by repeated operations of the lasting and securing mechanism upon successive portions of the margin of the upper, and particularly to such machines when used for lasting the heel seats of turn shoes.

In the manufacture of turn shoes having nailed heel seats, the sole is first placed on the last, then the upper is assembled on the last, lasted in about the shank and forepart and sewed to the channeled sole by a seam extending from the breast line about the shank and forepart to the breast line on the opposite side of the shoe. The shoe is then turned inside out and relasted upon a last having a shank piece temporarily tacked to it. The shank piece covers the heel seat and extends along the shank to the ball line. The unattached heel end of the sole is now bent upwardly and forwardly of the shoe, and the upper about the rear portion of the shoe is lasted in and tacked to the shank piece to form a heel seat, the tacks being clenched upon the iron heel plate of the last.

Heel seat lasting has heretofore been performed on a machine of the hand method type, such for example, as shown and described in United States Letters Patent No. 597 ,321, granted January 11, 1898, upon application of Sherman W. Ladd, the gripper mechanism being disused or stripped off when the machine is employed for this! purpose only. This machine has a rigid shoe bottom rest which engages the heel seat and against which the shoe is held whilea reciprocating wiper, which is also a tack block, acts to wipe over the upper upon the heel seat where it is secured by tacks driven through the tack block and wiper, one at each forward reciprocation thereof. The reciprocating tack block usually has its sides inwardly and upwardly inclined so that it will pass under the upturned sole to a point close to the end of the seam. A tack block of this kind is shown and described in United States Letters Patent N 0. 1,014,940, granted January 16, 1912, on application of William A. Bond. 7

Because of the engagement of the upturned portion of the sole with the rigid shoe rest, when the portions of the heel seat next to the seam are being lasted, and the resistance which the sole offers to the movement of the shoe longitudinally, it is difficult or impossible to insert tacks as close to the end of the seam as is desirable.

An object of this invention is to provide a shoe supporting means which will facilitate the lasting of the portions of heel seats adjacent to the breast line and which will in turn shoe work permit placing of tacks under the upturned end of the sole close to the end of the seam.

A feature of the invention consists in a workrest for engaging the bottom of the shoe which is yielding in a direction to allow the shoe to be moved toward the tack block and wiper, notwithstanding contact of the sole with the work rest, to permit insertion of tacks well under the upturned sole and close to the end of the seam, the rest being rigid in the direction of movement of the tack block and wiper to resist the outward thrust of its wiping movement. As shown herein, the rest consists of a member which has a foot to engage the shoe bottom and which is flexible in a direction at right angles to the direction of movement of the tack block and wiper and is rigid in the direction of movement of the tack block and wiper. The rest preferably comprises a flatspring, positioned with its edge toward the operator, which spring is wide enough to be substantially rigid in the direction of movement of the tack block to hold the shoe against movement in that direction and is thin enough to be flexible at right angles to that direction of movement to permit movement of the shoe in the direction of its length while the portions of the heel seat next to the seam are being lasted, whether the upturned sole contacts with the spring and bends it while the shoe is held away from the rest or whether the shoe is held against the foot on the end of the restand the rest moved laterally of the machine as the shoe is moved lengthwise.

The flexibility of the rest enables the operator to hold the shoe in contact with the rest the fulcrum .of the shoe to a position later-- ally spaced from the vertical median plane in which the wiper moves the toe end'of the'shoe about this fulcrum the operator may materially increase the wiping forceof the wiper at the side ad-:

jacentyto the end of theseamxwhere it is highly desirable that the upper be brought into intimate contact. with the last. and

where there is usuallya depression in the contour of the last; into which: a wiper acting in its usual plane upon the shoe cannot. reach so as to properly 'wipetheupper against the wood of the last.

While the invention has. been explained with particular reference to its employment in lasting the heel seats of turn shoes, it will be apparent that its'utility is not confined to such use but that in its broader-aspects it maybe employed with advantage in lasting heel seats such as those of welt and McKay shoes in which there is no upturned sole but where it is equally desirable to last in andsecure'the upper tightly to the last at each. end of the line of heel seattacks.

These and other features of the invention will appear more fully from the following detailed descriptiongand'will be pointed out in the appendedclaims.

Figure 1 is aside view of a portion of the head of a heel seat lasting-machine of the hand method typeequipped withmyinvention, the shoe vbeingshown in section; and

Fig. 2 is afront view of Fig. 1, parts being omitted, and; the" shoe and sole being partly broken away.

The Linachine as shown in the. drawings has the. usual combined tack block and wiper 2 which is carriedby :a member 4 mounted for horizontal sliding-.movement I and operated by theusual cam to reciprocate the tack/block 2 toward and tack being separated from the column of 35 tacks in the raceway by a tack separator 8 so that by raising 2:.

y from theshoe. When the block.2 is in retracted position it. receives a tack from a. raceway 6, the

and dropped into a tack pocket in the tack block 2 where it is held by suitable yielding fingers until the tack block is moved forwardly over the heel seat of the shoe. In its forward movement the lower face of the tack block acts as a wiper to wipe the upper over into lasted position. When the.

tack block has reached this position it is so located relatively to the driver 10 that upon descent of the driver the tack will be driven through the block and into the shoe,

as shown in Fig. 1. The shoeis positioned to receive the tack at the proper distance from the edge of the last by an edge rest 12, and it vertical position is determined by a bottom rest having afoot lt which en-1 gages the shank piece a overlying the heel plate 32 upon which the tacks are clenched. The foot 1 1 has a roughened face for .contact with the shoe which it engagesat a point beyond the position of the wiper. when advanced over the shoe bottom- The foot- 14 is secured to a yielding 1nember.;16 which may be a leaf spring. The spring is se-.

cured at its upper end to a threadedstem 18 having threaded engagement with a bore in a bracket 20 extending from the machine frame. Above the bracket onthe stem 18 is I a set nut 22. When the nut 22 is loosened,

the rest may be adjusted vertically by turn-- ing the stem until they desired'elevation is obtained. It is then, set withthe plane of the spring'16 in the vertical median plane of the machine, the edge of the spring being toward the operator. (Fig. 2), and the nut 22. tightened: to holdthe rest in place. The di- .7

rect-ion of the bore in the bracket 20 issuch that the rest is inclined,to the: vertical with the foot. 14 nearer the machine than the upper end of the rest. This gives the work engaging face of the foot a downward and outwardinclination to enable the. face of the foot to bear squarely upon the shoewhen the shoe is held, with its bottom downwardly inclined away from the machinein proper position for lasting.

ioo

Tn lasting the heel .seat the .tacks are; driven in a line extending from the end of the seam connecting thesole and upper at the shank on one side of the shoe around .to

the beginning of the seam at the shank on In order that;

the other side of the shoe.

the tacks may be'driven as close as possible side portions upwardly and inwardly. in-

. to the end of the seam, the tack block has, its

clined substantially as shown and described in the Bond patent referred to above.

' Fig. 2 indicates at 0 the upwardly bent. end portion of the sole and shows the upper being wiped inwardly under the soleby'the wiper 2. The upturned portionof the sole bears against the bottom rest and. when this rest is, as heretofore constructed, -bulky;andj

unyielding it offers a serious obstruction when tacks are belng inserted near the end of the seam and prevents their being inserted as near the seam as is desirable. When the laterally yielding rest provided by this invention is employed, however, the pressure of the upturned sole causes the rest to bend laterally of the machine and, while supporting the shoe rigidly vertically and against the thrust of the wiping movement of the tack block, allows that inclined side of the block which is next the seam to be crowded in under the sole close to the end the seam so that no substantial space is left between the end of the seam and the first heel seat tack. If the shoe is held continuously against the rest while several tacks are driven successively nearer the seam, the rest will, of course, be bent away from the seam and the fulcrum of the shoe, therefore, so shifted laterally that the efiect of the wiper may be increased by raising the toe of the shoe. Obviously the machine is susceptible of such operation whether or not the shoe has an upturned sole end. At the side of the heel rest. where the lasting of the heel seat begun the shoe may be brought in contact with the rest at a point remote from the end of the seam and the shoe moved lengthwise heelward by bending the rest to bring the wiper in under the upturned end of the sole, when such end is present, so as to begin the lasting at a point as near as possible to the seam. In this use the fulcrum will, of course, be shifted and the shoe toe may be lifted to increase the wiping action the same as at the end of the lasting operation. During intermediate portions of the lasting operation when rounding the end of the heel the operation of the rest will be substantially as in prior machines. However, instead of moving the shoe away from the rest to feed the shoe after each tack, the operator may move the shoe with the rest for a. number of operations and then move the shoe away from the rest to allow it to return to normal position, whereupon the operation may be repeated. This avoids the necessity of moving the shoe away from the rest or at least releasing the pressure of the shoe against it after each operation and consequently permits of more rapid operation of the machine.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine of the class described, the combination of tacking mechanism, a movable wiper, and a shoe rest fixed on the machine frame and extending downwardly with its lower end in position to engage the bottom of the shoe and said lower end being movable bodily transversely of the direction of movement of the wiper whereby successive portions of the upper may be wiped over and tacked while the rest remains in continuous contact with the shoe.

2. In a machine of the class described, the combination of tacking mechanism, a movable wiper, and a shoe bottom rest having the portion which engages the shoe bottom movable in the direction of movement of the shoe edge to allow the shoe to be held against it continuously while successive tacks are being driven, the rest having also a movement in a vertical direction so that successive portions of the upper will be wiped harder against the shoe bottom.

3. In a machine of the class described, the combination of tacking mechanism, a movable wiper, and a shoe bottom rest forming a fulcrum about which the shoe is moved for presentation to the tacking mechanism and wiper, the said rest being movable with the shoe transversely of the path of movement of the Wiper whereby the position of the fulcrum relatively to the wiper is changed and the shoe may be moved about the changed fulcrum to cause the wiper to reach the upper in a depressed portion of the last edge.

4. A machine of the class described having, in combination, a movable wiper and tack block for working successive portions of an upper over a last bottom and securing the upper progressively by repeated opera tions, and a shoe bottom rest arranged to position the shoe for the action of the tack block and wiper having an attaching portion and a shoe engaging foot both located in a plane parallel with the median vertical plane of the machine, and means between the foot and the attaching portion to permit movement of the foot relatively to the attaching portion in a direction laterally of said median plane.

5. A machine of-the class described having, in combination, a movable wiper and tack block for working successive portions of an upper over a last bottom and securing it progressively by repeated operations, said block having inclined side faces to adapt it for operation beneath the upturned end of the turn shoe sole atapoint close to the seam, and a rest for the shoe bottom constructed and arranged to yield in the direction of the length of the shoe while the said portions of the heel seat are being lasted.

6. In a machine for lasting turn heel seats, the combination of a reciprocating wiper adapted to extend under the upturned end of the sole, a bottom rest for the shoe, and means permitting the rest to yield to the pressure of the upturned end of the sole when the portions of the heel seat next to the ends of the seam are being lasted.

7. In a machine of the class described, the combination of a wiper constructed and arranged for treating successive portions of a shoe upper, a bottom rest comprising a stem portion held on the machine frame, a foot portion to engage the shoe bottom, and a flexible portion between the stem and foot the shoe While the Wiper treats successive portions of the upper."

8. In amachine of the class described; the OOIIlblIltltlOl'rOf a 'WlPQFCOIlStIHCtBd. and ar-- ranged to treat successive portions of a shoe' upper, and a shoe bottom rest arranged substantially perpendicular to the plane of the bottom of the shoe presented to the Wiper, the rest being resilient to permit :movement of its lower end relatively to the Wiper While in contact with the shoe and duringsucces sive operationsof the Wiper.

9. In a machine of the class described; the

* arranged to operate on successive portions of a shoe upper, and a so e rest comprising a blade arranged to be stiff in the direction of combination With a Wiper for' operating 'on successive portlons of a shoe upperyof shoe posltionlng means arranged to engage the bottom of a last and constructed to permit relative movement 'betvveenthe l-astand'said l means substantially in the plane of the last 1 bottom and to effect or allow, as anincident to such movement, a displacement of the Copies of. this paltent may be obtained for five cents each, by addressing the Commissioner of Patents;

work substantially"perpendicular to the 10. In a machine of the'classdescribed, the combination of Wiping means con- --plane of the last bottomand relatively to r the Wiper.

structed and arranged to operateon succestened to an extent to render it relatively sive portions of a shoe upper, and-a solerest comprising a rod having a portion fiatflexible transversely of the directionof I direction of Wiper movement.

11. In a machine of the class described,

"wiper movement and relatively stifi in the i the combination of a Wiper constructed'and the thrust of the Wiper and flexible transversely of that direction. 7 In testimony whereof I have signed my name to this specification.

CHARLES DE MINICOL Washington, D. C.

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