US1209666A - Lasting-machine. - Google Patents

Description

L. M. BROWN.

LASTING MACHINE.

APPLICATION FILED APR. s. 1915.

129,666. Patented Dec. 26;1916.

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LOUIS 1VI. BROWN, OF BEVERLY, MASSACHUSETTS, ASSIGNOR 'lO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

LASTING-MACHIN E.

Application filed April 8, 1915.

To all whom it may concern Be it known that I, LOUIS M. BROWN, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Lasting-Wachines, 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 lasting machines and is herein illustrated as embodied in a machine for lasting stitch-down shoes.

The machine in which the invention is shown as embodied is of the general type disclosed and claimed in United States Letters Patent No. 1,117,087, granted on the application of A. H. Prenzel November 10, 1914, and a general object of the present in vention is to provide an improved lasting machine of that type. By the construction and arrangement of the machine of the said Prenzel patent, for the first time in the art of making stitch-down shoes it was possible to stretch the upper of a stitchdown shoe over the last, wipe it down the side of the last and force it into the angle between the last and the sole margin, and, while the upper was thus held in lasted position, insert a fastening in said angle in a manner to secure the upper tightly against the two sides of said angle exactly in its lasted position. The success of the machine of the said Prenzel patent was largely due to inclining the wiping face of the lasting tool of that machine at a sharply acute angle to the direction of the relative movement of the tool and the sole support, whereby it was possible both to draw the upper tightly over the last and wipe it down the side of the last snugly into the angle between the last and the sole margin, and also to locate the staple or other fastening in position to secure the upper firmly and exactly in lasted position.

A specific object of the present invention is to improve the machine of the said patent to Prenzel without sacrificing any of the above stated and other features and advantages characteristic of that machine.

In accordance with this object of the in vention, the lasting machine, herein shown and described as illustrating a preferred em- Specification of Letters Patent.

Patented Dec. 26, 1916.

Serial No. 20,003.

structed. In accordance with this feature of the invention, as shown, the lasting tool is ,so constructed and arranged with relation to the former that a continuous uninterrupted staple passage is provided through the former into and through the lasting tool.

In accordance with another feature of the invention, the illustrated lasting tool has an end clamping face formed to hold the upper overlying the sole margin down and press it out upon the margin of the sole substantially from the last to the sole edge during the staple forming and driving operation, the lasting tool cooperating with a work support having a sole engaging face substantially parallel to the end clamping face of the lasting tool. By this construction and arrangement not only is the upper disposed properly in the angle between the last and the sole margin, but the upper overlying the sole margin is flattened and smoothed to.

condition it for the subsequent application of the welt, thereby insuring that the welt will lie evenly. This construction and arrangement are not only adapted for lasting the forepart of a shoe but are also well adapted for use in lasting other parts including the shank.

A further feature of the invention consists in the fact that, as shown, the end clamping face of the lasting tool is provided with corrugations or teeth which serve to prevent excessive slipping of the upper over the clamping race and the end of the nozzle during the upper wiping and stretching operation.

These and other features and objects of the invention will be apparent from the following detailed description read in connection with the drawings, and .the various novel features of the. invention are set forth in the appended claims.

The preferred embodiment of the invention herein shown and described is shown as incorporated in the machine set forth in the co-pending application of Matthias Brock, Serial No. 17,182, filed March 241, 1915. It

is to be understood, however, that the invention may have other-uses, including application to lasting machines of other types.

Referring to the drawings: Figure 1 is a front elevation of a portion of the upper part of the machine; Fig. 2 is a side elevation of the lasting tool and associated parts, partly in section, illustrating the manner of using the said lasting tool; and Fig. 3 is an angular perspective in elevation showing the lasting tool and the staple former.

The illustrated machine comprises staple forming and inserting mechanism, including a lasting tool which, as above stated, serves also to guide the staples into position to secure the shoe upper in lasted position, and a work support comprising a sole rest upon which the sole of the shoe to be lasted is supported, the work support being movable toward the lasting tool to cause said tool to effect the upper stretching and wiping operation. The said machine is intended particularly for use in practising the process set forth in United States Letters Patent No. 1,117,086, granted on the application of A. H. Prenzel November 10, 1914.

The illustrated staple forming and insci-ting mechanism is of the type disclosed in United States Letters Patent to V. H. Borden No. 1,016,930, February 13, 1912. Like the machine disclosed in the said Letters Patent to Borden the illustrated machine has a driver bar 16 (Fig. 1) lifted against the action of a spring (not shown) by a lifting cam 11 acting upon a block 1 1 upon said driver bar, and a feed roll operated by connections to a slotted lever 100, more fully described in said Letters Patent to Borden, said slotted lever being in turn rocked by a cam operated lever 106. For feeding the wire to which forms the .staples to the staple forming mechanism and cutting the wire, the machine is designed to employ mechanism substantially like that shown in said Letters Patent to Borden. As in the machine shown in said Letters Patent to Borden, the release of the wire after the return movement of the feed roll 90 is effected during the wire cutting operation by the action of a plunger 75 which engagesan adjustable stop 76 upon a lever which carries the cooperating presser roll 14-2. A spring 14:7 operates to maintain the presser roll 142 yieldingly 1n pressing relation to j the feed roll 90. During the cutting operation the action of the plunger 7 5 upon the stop 76 rocks said lever 1 10 about its fulcrum 1&6 and moves the presser roll 1412 toward the left out of pressing relation to the feed roll.

For bending the severed pieces of wire and forming the staples, the machine of the drawings, like the machine set forth in the above-mentioned patent to Borden, is provided with an outer die or former 2 12 and an inner die (not shown) over which the former bends the severed pieces of wire. As more fully described in the patent to Bordon, the inner die is reciprocated forwardly and rearwardly through connections to a carriage mounted for sliding movement on a rock shaft 50, the carriage being spring operated forwardly to aline the inner die with the former 2 12 and cam-operated rearwardly after the formation of the staples to permit operative movement of the driver. The outer die or former 2 12 is carried by a slide 66 reciprocated vertically'by a sliding block connection with an arm 60 secured to the rock shaft 50 upon cam operated move ment of said rock shaft. A. cover plate or block secured to the head of the machine is provided with a groove which, with a groove in the former 242, forms a passageway 216 for the driver 16.

In the illustrated machine, as fully shown and described in said co-pending application of Matthias Brock, the relative lasting movement of the work support and the lasting tool is designed to be effected manually by means of a suitable foot treadle and 0perative connections from said treadle to the work support while a separate treadle and one of which is shown at 168, upon a bracket 172 attached to the front post 174: of the ma chine frame. The work support, like that disclosed in the "above mentioned Letters Patent to Prenzel No. 1,117,087, has an inclined work supporting face 192 ofiset at 1941, provision being made for varying the inclination of this face. The sole supporting face 192 is formed upon a segmental block 196 guided for adjustment about an axis lying in said offset 19%. As shown, the block 196 is secured in its difierent positions of angular adjustment by a clamp 202 and cap screw 201. Preferably, too, the segmental block 196 is mounted for horizontal adjustment, as fully described in said copending application of Matthias Brock, screws 212 and 211 being provided for adjustably securing the work support in its different positions of horizontal adjustment. The screw 21 1 is extended to provide a connection for one end of a spring 216 which tends to move the work support back to its lowermost position.

The lasting tool is shown at 144. Like the lasting tool shown in the said patent to Prenzel No. 1,117,087, the lasting tool 144, as shown, is formed to present to the side of the last a smooth upper wiping face 232 inclined to the direction of relative movement of the tool and work support at a sharply acute angle, the said tool 144 having upon its rear a substantially straight face 234 approximately parallel tothe direction of staple drive and being provided with a staple guiding nozzle 236 arranged to deliver a staple as close to the wiping face 232 as is consistent with proper strength in the wall of the nozzle, the inclination of the wiping face 232 to the direction of relative movement of the nozzle 236 and the sole support approximating parallelism as closely as may be without unduly weakening the Wall of the nozzle.

In the illustrated construction, the lasting tool 144 is provided with an end clamping face 238 adapted to hold the upper down and press it out upon the margin of the sole. Preferably, and as shown, the end face 238 of the lasting tool 144 is so inclined relatively to the wiping face 232 that, during the upper wiping and stretching operation, the said end face 238 will press upon the upper overlying the sole margin substantially throughout the extent of said end face, the said end face 238, as shown, being of sufficient length so that during the upper stretching and wiping operation the said end of the lasting tool engages and presses the upper overlying the sole margin substantially from the last to the edge of the sole. Preferably, too, the clamping face 238 is provided with corrugations o-r teeth, as shown, to prevent the upper from slipping too easily over the said clamping face and the end of the nozzle 236 during the wiping and stretching operation. As shown in Fig. 2, the work support should be so adjusted that its inclined sole supporting face 192 will be substantially parallel to the clamping face 238 of the lasting tool so that it may aiford proper support to the margin of the sole and contribute to the effective clamping of the marginal portion of the upper upon the sole. The lasting tool 144 is also provided at its upper end with an upstanding projection or lip 240 substantially complementary to the cutaway wire engaging part 244 of the former 242, the projection 240 and the cutaway part 244 constituting overlapping terminal portions, whereby the nozzle 236 of the lasting tool and the staple guide 246 of the former are alined end to end to provide a continuous staple passage from the former to the lasting tool, as plainly shown in Fig. 3. This construction and arrangement insure that, when the driver 16 in its descent forces a staple 250 downwardly out of the passage 246 formed by the grooves inthe former 242 and the block 33 and into the correspond ing passage 236 in the lasting tool 144, no

.of the legs of the staple to separate when released from confinement within the walls of the staple passage 246 in the former.

In the use of the illustrated machine, after the sole of the shoe to be lasted has been located upon the supporting face 192 of the work support, the operator depresses the treadle by which the rod166 is operated, the work support being thereby raised. Having thus effected the desired stretching and wiping operation, which the operator can observe as'it proceeds and repeat if necessary, the operator then depresses the starting and stopping treadle to actuate the staple forming and inserting mechanism.

During the relative lasting movement of the Work support and lasting tool 144 effected by raising the work support, the last ing tool stretches and wipes the upper on the side of the last and forces the upper into the angle between the last and the sole margin, the end 238 of the lasting tool holding the upper down and pressing it out upon the margin of the sole substantially from the last to the sole edge, thus flattening and smoothing the upper overlying the sole margin and conditioning it for the laying of the welt and also holding the upper down during the staple forming and driving operation, while the corrugations or teeth formed onsaid clamping face 238 prevent excessive slipping of the upper over the clamping face 238 and the end of the nozzle 236.

Various novel features residing in the or ganization, arrangement, and details of construction of the illustrated machine which are not of my invention are the subject matter of claims of the above mentioned copending application of Matthias Brock.

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

1. A lasting machine comprising staple forming and inserting mechanism including a staple forming member having a staple guide together with a lasting tool having a staple guiding nozzle, said forming member and said lasting tool being constructed and arranged to cause the guide of the forming member and the nozzle of the lasting tool to constitute a staple passage having continuous uninterrupted Walls While a staple is being driven.

, 2. A lasting machine comprising staple forming and inserting mechanism including a staple forming member having a staple guide together With a lasting tool having a staple guidingnozzle, said forming member and said lasting tool having overlapping terminal portions constructed andarranged to cause the guide of the forming member and the nozzle of the lasting tool to constitute a continuous uninterrupted staple passage.

r 3. A lasting machine comprising staple forming and inserting mechanism including a staple forming member having a staple guide together With a lasting tool having a staple guiding nozzle, said forming member having a cutaway terminal part and said tool having a complementary projection or lip constructed and arranged relatively to the cutaway part of the forming member to aline the nozzle of the lasting tool and the guide of the forming member end to end, ivhereby a continuous uninterrupted staple passage is formed. 7

4:. A machine for lasting stitch-down shoes comprising staple forming and inserting mechanism, a lasting tool having a staple guiding nozzle and an upper clamping end constructed and shaped to hold the upper down and press it substantially across the entire margin of the sole, and a Work support having a sole engaging face substantially parallel to the end of said lasting tool.

5. In a machine of the class described, a lasting tool formed to force the upper into the angle between the last and the sole margin, said lasting tool having a shoe upper engaging end constructed and shaped to hold the upper down and press it positively upon the margin of the sole.

6. In a machine of the class described, a lasting tool formed to force the upper into the angle between the last and the sole margin, said lasting tool having a shoe upper engaging end formed and arranged to exert positive pressure upon the upper overlying the sole margin substantially from the last to the sole edge.

7. In a machine of the class described, a lasting tool comprising a staple guiding nozzle having an upper clamping end constructed and shaped to hold the upper down and press it substantially across the entire margin of the sole during the staple forming and driving operation.

8. In a machine of the class described, a lasting tool having an upper Wiping side face and an upper clamping end face formed 9. In a machine of the class described, a

lasting tool formed to present to the side of the last a smooth upper Wiping face and having an upper engaging end formed to press upon the upper overlying the sole margin substantially from the side of the last to the sole edge, said end being corrugated ortoothed to prevent excessive slipping of the upper overlying the sole margin during the upper wiping and stretching operation.

10. In a machine of the class described, a lasting tool comprising a fastener guiding nozzle formed to present to the side of the last a smooth upper Wiping face and having an upper clamping end formed to overlie and press the upper on the sole margin from the side of the last substantially to the sole edge and having corrugations or teeth to prevent excessive slipping of the upper over the end of the nozzle during the upper Wiping and stretching operation.

11. In a machine of the class described, a

overlying the sole margin substantially from the last to the sole edge.

12. In a machine of the class described, a lasting tool comprising a staple guiding nozzle formed to present to the last a smooth upper Wiping face inclined at a sharply acute angle to the direction of said nozzle and having a substantially straight rear face approximately parallel to the direction of the nozzle and an upper clamping end face constructed and arranged to press upon the upper overlying the sole margin substantially throughout the Width thereof, said end face being corrugated or toothed to prevent excessive slipping of the upper over the end of the nozzle.

13. In a machine of the class described, a lasting tool having a smooth side upper wip ing face and a corrugated end upper clamping face formed to press upon theupper overlying the sole margin from the angle between the side of the last and the sole margin to the sole edge to prevent the upper from slipping during the upper Wiping and stretching operation.

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

LOUIS M. BROl/VN.

(topics of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents,

Washington, D. G.

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