US1027024A - End-lasting mechanism. - Google Patents

Description

D. L. WINBBERG.

BND LASTING MEOHANISM.

ArPLIoATIoN num JULY 25, 1910.

Patented May 21, 1912.

WVM/727A?.

kmq/1 {MTA/5555? SMC MW @M c. Q7/f UNITED STATES PATENT OFFICE.

DAVID L. WINEBERG, OF ROCKLANI), MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, 0F PATERSON, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

END-LASTING- MECHAN ISM.

Patented May 21, 1912.

Application filed July 25, 1910. Serial No. 573,687.

To all whom 'it may concern:

Be it known that I, DAVID L. IVINEBERG, a citizen of the lUnited States, residing at Rockland, in the county of Plymouth and State of Massachusetts, have invented certain Improvements in End-Lasting Mechanisms, 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 end lasting apparatus and particularly to devices adapted to be used in coperation with end embracing wipers in stretching an upper over a last. These devices which are used in place of the workmans fingers to hold the upper upon the wipers are called retarders because their function is to retard the slipping of the upper over the moving wipers. In their use the marginal portion of the upper is spread over the wiper plates, which have an advancing and inwardly closing movement and usually also an upward movement relatively to the last, and clamped down thereon by the retarder.

An object of this invention is to provide a simple, light and. very effective retarder which can be readily moved from an out-ofthe-way position to working relation to the shoe and by which an upper clamping pressure that is easily controlled and varied can be applied to the upper at the sides and end of the toe.

` the operators View of the work.

An important feature of this invention is found in a retarder which comprises a bar movably supported in front of the shoe and having a handled end extending over the shoe and a depending foot to clamp the upper against the wipers and regulate the freedom with which the upper slips over the wipers as they are advanced and closed.

It is also a feature of this invention that the bar is connected to its support to permit it to have movement lengthwise of the shoe in the direction of the advance of the wipers and under control of the operator.

The clamping foot is herein shown as a crescent-shaped plate of rigid construction which is adapted to engage the upper at the end and for a distance on each side of the toe, particularly at the corners of the toe. In use the retarder may be allowed to advance with the wipers while its side portions restrain the slippage of the upper over the inwardly closing wipers to effect a maximum straining of the upper at the corners of the toe. This is desirable for the reason that in the pullingover operation as practised by the commercial pulling-over machine the upper is tightly drawn to the last at the end and at opposite sides of the ball but it is not directly strained at the corners of the toe.

It is also a feature of the invention to make provision for lateral movement of the retarder during the closing of the wipers whereby greater upper pulling force can be applied at one side of the toe than at the other side.

These and other features of this invention will more fully appear from the following description of a preferred embodiment thereof and will then be pointed out in the claims.

The drawing shows a toe lasting mechanism equipped with this invention.

`The wipers 2 are supported and guided in the carrier et and are actuated by usual connections with a hand lever 5 to advance longitudinally of the shoe and simultaneously to close inwardly from opposite sides of the toe whereby to lay the upper over the margin of the sole. In these respects the lasting mechanism may be similar to that shown in the Grandy Patent No. 521,954, or

it may be of any other wiper type. Erected upon the wiper support et, as from a detachable hase plate 10 is a post 12 the stem of which is embraced by the longitudinally slotted end of a lever l5 which is adapted to extend rearwardly over the shoe as shown in the drawing and to be turned laterally to an out-of-the-way position when not required for use. The rear end of the lever is formed as a handle and from the lever depends a crescent-shaped foot adapted to clamp the upper of the end and sides of the toe down upon the top face of the wiper plates 2. When downward pressure is applied upon the handle the lever fulcrums on the head of the post 12 and the foot retards the slipping of the upper over the wipers as they are advanced and closed. The slot by V which the stem l2 is embraced allows the retarder to accompany the wipers in their advance to a greater or less extent determined by the operator through his engagement with the handle end of the lever. r1 he rearwardly extending arms of the clamping foot are unable to partake of the closing movement of the wiper plates and therefore the retarder serves to delay or retard the slipping of the upper of the sides of the toe more than it does the upper of the end of the toe and so causes a relatively greater stretching of the upper over the sides or corners of the toe portion of the last. T he clamping foot is preferably connected rigidly to the lever and the slotted end of the lever is fitted to the stem 12 loosely enough to enable the operator by his grasp on the handle to roll the retarder slightly as may be found desirable to increase the grip of the upper on either side of a toe which may require special pulling.

Having explained the nature of this 1nvention and described a preferred construction embodying the same, I claim as new and desire to secure by Letters Patent of the United States:

1. A retarder for bed lasting machines vcomprising a bar extending lengthwise of a shoe which occupies position to be lasted in the machine and pivotally supported in front of the shoe and having a handle on its rear end, said bar having a depending foot adapted to be held in clamping engagement with the marginal portion of the upper upon the lasting plates by pressure applied to the handle transversely of the length ofv the handle.

2. A retarder for bed lasting machines comprising a lever extending lengthwise of the shoe which occupies position to be lasted in the machine, said lever being fulcrumed in front of the shoe and having its operating end extended rearwardly over the shoe to form a handle, a depending stem on the lever between the pivot and the handle and a crescent-shaped foot on the stem and located to clamp the upper against the lasting plates.

3. A retarder for lasting machines comprising a support, a lever fulcrumed on the support in front of the shoe and having a handle extending rearwardly over the shoe, a crescent shaped clamping foot on the lever having its concave edge toward the last and adapted to extend down in front of the last below the plane of the last bottom, and connections permitting relative movement between the foot and the support in a direction longitudinal of the lever.

4. In an end lasting mechanism the combination with end embracing wipers and supporting and operating means therefor, of a retarder comprising a lever arranged longitudinally of the shoe and having a pin and slot pivotal connection with the wiper support and a rear end formed as a handle extending over the shoe, and a crescentshaped foot depending from the lever to clamp the upper upon the wipers, said pin and slot connection permitting movement of the retarder lengthwise of the shoe with the wipers.

5. A retarder for bed lasting machines comprising a carrier extending lengthwise of a shoe which occupies position to be lasted in the machine, said carrier being movably supported in front of the shoe and provided with a handle on its rear end and having a depending foot shaped to clamp the upper at the two sides of the toe and having means by which to eect lateral manipulation for relatively varying the action of the retarder at the two sides of the toe.

6. 1n an end lasting mechanism, the combination with toe embracing wipers and supporting and actuating mechanism therefor including means for advancing and closing the wipers, of a retarder formed to clamp the upper against the wipers at the end and sides of the toe and having a sliding connection with the wiper supporting mechanism to permit it to have movement lengthwise of the shoe with the advancing wipers.

7. In an end lasting mechanism, the combination with toe embracing Wipers and supporting and actuating mechanism therefor including means for lifting the wipers from a starting position below the planeof the last bottom to stretch the upper upwardly and means for advancing and closing the wipers, of a retarder having a crescent shaped foot formed to extend down around the toe of the last to clamp the upper against the depressed wipers at the end and sides of the toe and mounted to permit, under control of the operator, a rising movement with the wipers and an advance movement with the advance of the wipers while resisting inward movement of the upper from the corners of the toe with the closing of the wipers.

8. In an endlasting mechanism, the combination with toe embracing wipers and sup-V porting and actuating mechanism therefor including means for advancing and closing the wipers, of a retarder formed' to-clamp the upper against the wipers at the end and at the sides of the toe and slidingly supported on said mechanism to permit it to accompany the advance movement of the wipers while detaining the edge of the upper at the corners of the toe from inward movement with the closing wipers.

9. In an end lasting mechanism, the combination with toe embracing wipers and supporting and actuating mechanism therefor` including means for advancing and closing the wipers, of a retarder formed to clamp the upper against the wipers at the end and at the sides of the toe and constructed and arranged to effect, in coperation with said movements of the wipers, a greater stretching of the upper over the corners of the toe than over the end of the toe.

l0. In an end lasting mechanism the combination with toe embracing wipers and supporting and actuating mechanism therefor which is movable upwardly and downwardly and includes means for advancinoP and closing the wipers, of a retarder formed to enable it to be used to clamp the upper against the wipers at the end and sides of the toe while the wipers are a substantial distance below the plane of the last bottom and mounted to accompany the wipers in one only of said wiper movements as and for the purpose described.

ll. In an end lasting mechanism the combination with toe embracing wipers and supporting and actuating 'mechanism therefor including means for advancing and closing the wipers, of a retarder formed to clamp the, upper against the wipers at the two sides of the toe and having a handle extending lengthwise of the shoe by which lateral movement can be eiected during the closing of the wipers to cause greater straining of the upper at one side of the toe than at the other side.

l2. An end lasting machine having, in combination, toe embracing wipers and means for operating them, and a retarder comprising a manually operable lever, a crescent-shaped foot attached to the lever and having its horns extending toward the rear of the shoe and away from the fulcrum of the lever whereby pressure applied to the lever acts to retard slipping of the upper more at the sides than at the end of the toe.

13. An end lasting machine having, in combination toe embracing wipers and means for operating them, and a retarder comprising a manually operable lever, a crescent-shaped foot attached to the lever and having its horns extending toward the rear of the shoe and away from the fulcrum of the lever whereby pressure applied to the lever acts to retard slipping of the upper more at the sides than at the end of the toe, said lever having a pin and slot connection with its fulcrum permitting it to accompany the wipers in their advancing movement over the end of the toe.

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

DAVID L. WINEBERG.

Witnesses A.. n. H. HALL, C. H. MINER.

Copies of this patent may be obtained for iive cents each, by addressing the Commissioner of Patents, Washington, D. C."

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