US1143798A - Lasting device. - Google Patents

Description

W. H. ATKINS. LASTING DEVICE. APPLICATION man AUG-23. 191a.

Patented June 22, 1915.

WILLIAM H. airs, on iuA'nIson, Wisconsin, assienoa, :eir nasn's ASSIGNMENTS,

cisttns n. BOWMAN, or mamsolv, WISCONSIN.

LASTING DEVICE.

Specification of Letters Patent. Pat nted June 22, 119M.

Application filed August 23, 1913. Serial No. 786,207.

To all whom it may concern Be it known that 1, WILLIAM H. ATKINs, a citizen of the United States, and resident of Madison, county of Dane, and State of Wisconsin, have invented new and useful Improvements in Lasting Devices, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

My invention has relation to improvements in lasting devices, and more particularly to a device for lasting the toe portion of a boot or shoe.

In the manufacture of shoes, it has been customary to press the upper over the last by hand, and then press outwardly the margin of the shoe upper, both along the sides of the shoe, and around the boxed toe portion of the shoe. It has also been customary to unite this pressed out margin, with an under thin layer of leather, the latter extending back around the heel portion of the upper of the shoe, both the margin of the upper, and the said thin layer of leather, being coated with cement, so that the opposed cemented surfaces will be caused to adhere to each other, when the parts are pressed together. This pressing together of the marginal portion of the upper, and the under thin layer of leather, has heretofore been accomplished by finger pressure. This practice, has been found objectionable, in view of the fact that when it is attempted to press by the fingers, the marginal toe portion of the upper against the corresponding portion of the under thin layer of leather,

a series of wrinkles is produced, in the.

leather around the toe portion of the shoe, thus mar-ring considerably the appearance of the shoe.

It is, therefore, the primary object of my invention to provide a mechanical means for pressing the cemented under side of the marginal toe portion of the upper, against the cemented upper side of the under thin layer of leather, in order to provide for temporarily uniting these parts together, previous to the stitching operation, the mechanical pressing together of the parts referred to avoiding to a large extent, the unsightly wrinkling of the leather, which ordinarily arises, when the pressing together of the parts is accomplished by hand.

I With the above primary object, and other incidental objects, in view, the invention consists of the devices and parts, or the equivalents thereof, as are hereinafter more the shoe being operated upon, being indicated by dotted lines; Fig. 2 is a sectional view, on an enlarged scale, of the upper portion of Fig. 1 the shoe and its contained last being shown in section, and the pivoted toe lasting device being shown in section, in the position which it assumes when in the act of pressing, and being shown in dotted lines in its normal position; and, Fig. 3 is a plan View of Fig. 1.

Referring to the drawing, the numeral 4: indicates the lower plate, or bed, of the toe lasting mechanism. This plate, or bed, may be supported horizontally by any desired means, as, for instance, by supports extending downwardly directly therefrom. This plate, however, in order to stand the maximum wear, is usually of metal, and, being of comparatively small area longitudinally and transversely, is secured by means vof screws 5, to the wooden top 6, of a suitable table, one of the vertical uprights, or legs 7 of said table, being shown in the accompanying drawing.

The upper pressure plate of the lasting device, is indicated by the numeral 8, and this plate is pivoted at its rear end, to the bed plate 4. The pivotal connection may be formed in any desired manner, but as it is desirable oftentimes to remove the pressure plate 8, in order to reverse it, or in. other words, to turn the side which waspreviously undermost to an uppermost position, or toremove entirely one plate, and substitute another of a diiferent form, I provide a pivotal connection between the two plates, of'such character that the plate 8 can be readily disconnected at the pivotal point. For this purpose, the rear end of the bed plate 4 is turned upwardly into approximate hook form, as indicated by the numeral 9. The rear end of the pressure plate is advisably rounded, and this rounded end fits in the rounded recess formed by the hook 9, and consequently the outer end of the pressure plate is formed to turn freely upwardly and downwardly.

As will be clearly seen from the drawing, the outer free end of the pressure plate, is formed with an inwardly-extending rounded, or arc-shaped recess 10, of such rounded contour as to conform to the shape of the shoe toe.

Any suitable mechanism for holding the pressure plate in its normal raised, or uplifted position, shown in full lines in Fig. 1, and in dotted lines in Fig. 2, and in the depressed position shown by full lines in Fig. 2, may be provided. For holding said plate in its raised, or uplifted position, however, I prefer to employ a coiled spring 11. This coiled spring extends through an opening 12 formed in the bed plate 4, and its lower end is seated in the bottom of a socket 13 formed in the table top 5, while its upper end bears against the under side of the pressure plate 8. The expansive force of this spring necessarily holds the pressure plate 8 normally in the raised position illustrated in full lines in Fig. 1, and by dotted lines in Fig. 2.

The preferred means for pulling the pressure plate 8 downwardly into pressing engagement with the marginal portion of the toe portion of the shoe upper, consists of a rod 14, which passes through the coils of the spring, with its upper end extending through an elongated slot 15, formed in ,the pressure plate 8. The upper end of this rod is provided with a transverse head 16 intersecting or extending across the slot 15. This head portion is slightly less in length than the length of the slot 15, so that when the rod 14- is turned to bring the length of the head into alinement with the length of the slot, the said rod can be readily withdrawn through the slot.

Some means should be provided for pulling downwardly upon the rod 14, and thereby causing a forcible descent of the outer free end of the pressure plate against the contrary force exerted by the coiled spring 11. The preferred mechanism for accomplishing this purpose, consists of a lever 17, which, at its forward end, has a pivotal connection 18, with the under side of the table top. The lower end of the rod 14 is pivotally connected to this lever, by means of a bolt 19. The rear end of lever 17 articulates with, or is pivotally connected to, a link 20, and the lower end of this link, in turn, is pivotally connected to a foot treadle 21, the said foot treadle having its fulcrum at the point 22. The free outer end of this treadle carries a foot-piece 23, and

pivotally connected to the under side of this foot-piece is a short link 24, one end of said link being connected to a medial point of a dog 25, said dog, in turn, being pivotally connected to the treadle, and being adapted to engage any of a series of teeth, formed on a segmental or arc-shaped upright 26.

The numeral 27 indicates the shoe upper to be operated upon, and 28 (Fig. 2) the shoe last contained within said upper.

In the operation of the mechanism, the outstanding marginal edges of the shoe upper, are coated upon the under side thereof, with a suitable cement, and the thin layer of sole leather 28 is similarly coated, and the two then brought together. By means of finger pressure, the glued parts are united, as far as the toe portion of the upper. A shoe upper operated upon, as thus far described, is shown by the dotted lines in Fig. 1. The forward, or toe portion of this shoe upper, is now placed upon the bed plate 4, the pressure plate 8 being in its normal raised position. Foot pressure is now exerted upon the foot-piece 23, of the treadle 21, to cause a down movement of said treadle. This will necessarily also cause a down movement of the link 20, and the consequent-turning downwardly on its pivot of the lever 17, which necessarily will draw downwardly the rod 14, against the contrary pressure exerted by the spring 11. The down movement of the rod 14, will cause a down pressure of the transverse head 16, of said rod, upon the upper side of the pressure plate 8, and consequently will cause a descent of the outer end of said pressure plate, bringing the bordering edge of the recess 10 of said pressure plate, into engagement with the outstanding marginal rim, or projection of the shoe upper. This will bring the entire toe portion of the shoe downwardly, and cause the marginal outstanding portion of the toe of the shoe, to come into contact with the under thinlayer of sole leather 28, and thereby serve to unite the cemented surfaces of said toe margin with said under layer of leather, and this without causing numerous wrinkles around the toe of the shoe, which is ordinarily occasioned when the marginal toe portion of the shoe is attempted to be united to the leather layer 28, by finger pressure. The pressure plate 8 is thus held downwardly for a sufficient length of time to insure the adhesion of the cemented surfaces. Pressure on the foot-piece 23 is then re moved, and the pressure plate is caused by the action of the coiled spring 1], to resume its normal uplifted position, ready for a repetition of the operation.

It will, of course, be understood that the operation thus far described, applies to only certain preliminary operations in the manufacture of shoes, and that following the action of the mechanism herein shown and described, the usual welt is applied around and over the outstanding marginal flange of the shoe upper, and the under sole is applied to the under side of the thin leather strip 28', and stitches are then made through the marginal flange, the layer 28' and the under sole portion, and that the parts are then trimmed ofi' evenly in the usual way. The present invention, therefore, relates to the means for uniting the marginal outstanding portion of the shoe toe to the under thin layer of leather, by mechanical means.

It will be noted that the opening 12, in the base a, and the socket 13, in the table top 5, are disposed at an angle, with the said socket and opening registering. This necessarily positions both the coiled spring ll, and the bolt H, at an angle. This angular arrangement is desirable, in view of the connection between the lower end of the bolt, and the lever 17, the said lever 17, of course, swinging in an arc of a circle on its pivot 18.

An advantageous feature of the invention is, the provision for ready removal of the pressure plate 8. The hook 9 of the base 1, in which the rear end of the plate fits loosely, forms a pivot, from which the plate can be readily removed. The removal of the plate is desirable, so as to adapt it to right and left shoes. If, for instance, the shoe upon which the device is shown as operating, in the drawing, is a left shoe, and it is then desired to operate upon a right sh'oe, the pressure plate is removed from its pivot, and inverted, or, in other words, the side of the plate, which was before lowermost, becomes uppermost. This will adapt the recess 10 to the toe portion of a right-hand shoe. In order to remove the plate 8, however, it is also necessary to remove the rod 14. This is done by taking out bolt 19, and then turning the rod until the length of the head portion 16, is in alinement with the elongated slot 15, ofthe pressure plate. It is obvious that the rod can then be readily withdrawn.

What I claim is:

1. In a lasting machine, the combination of a suitable base, a pressure plate having its outer end provided with an inwardlyextending recess, conforming in shape to the shape of, and adapted to surround, a shoe toe, said plate being resiliently supported and movably mounted on the base, with its recessed end normally up-standing from the base, and means connected to the plate for bringing the recessed end of the pressure plate downwardly, so as to engage the outstanding margin of the toe portion of a shoe upper.

' 2. In a lasting machine, the combination of a suitable base, a pressure plate pivotally connected at one end to the base, and having its opposite end provided With aninwardly extending recess, conforming in shape to the shape of, and adapted to surround, a shoe toe, means comprising a spring for normally holding the recessed end of the pressure plate up out of contact with the base, and means connected to the plate for bringing the recessed end of the pressure plate downwardly against the action of said spring, so as to engage the outstanding margin of the toe portion of a shoe upper.

3. In a lasting machine, the combination of a suitable base, having one end thereof upturned into hook form, a pressure plate having one end fitting loosely in the upturned hook end of the base, and thereby pivoted removably to said base, and said pressure plate having its opposite end provided with an inwardly-extending recess, conforming in shape to the shape of, and adapted to surround, a shoe toe, means for normally holding the recessed end of the pressure plate, up out of contact with the base, and means for bringing the recessed end of the pressure plate downwardly, so as to engage the outstanding margin of the toe portion of a shoe upper.

1. In a lasting machine, the combination of a suitable base, provided with a socket, a pressure plate, having its outer end provided with an inwardly-extending recess,

conforming in shape to the shape of, and

adapted to surround, a shoe toe, said plate being movably mounted on the base, a spring, seated in the bottom of the socket of the base, and having its u per end bearing against'the under side of t e pressure plate, sons to normally hold said plate in a raised position above the base, and means for bringing the recessed end of the pressure plate downwardly against the contrary force exerted by the spring, to thereby cause the edges of the recess to engage the out: standing margin of the toe portion of a shoe upper.

5. In a lasting machine, the combination of a suitable base, provided with a socket, a pressure plate, pivoted at its rear end to the base, and having its outer end provided with an inwardly-extending recess, conforming in shape to the shape of, and adapted to surround, a shoe tee, a spring, seated in the bottom of the socket of the base, and having its upper end bearing against the under side of the pressure plate, so as to normally hold the recessed end of said pressure plate in a raised position, and means for bringing the recessed end of the pressure plate downwardly against the contrary force exerted by the spring, to thereby cause the edges of the recess to engage the outstanding margin of the toe portion of the shoe upper.

6. In a lasting machine, the combination of a suitable base, provided with a socket, a pressure plate, having its outer end provided with an inwardly-extending recess, conforming in shape to the shape of, and adapted to surround a shoe toe, said plate being movably mounted on the base, a spring seated in the bottom of the socket of the base, and having its upper end bearing against the under side of the pressure plate, so as to normally hold said plate in a raised position above the base, a bolt, connected to the pressure plate, and mechanism connected to the bolt, and adapted, when operated, to cause a descent of the bolt, and a consequent descent of the recessed end of the pressure plate, to thereby cause the edges of the recess to engage the outstanding margin of the toe portion of a shoe up er.

7. In a lasting machine, the combination of a suitable base, provided with a socket, a pressure plate, having its outer end provided with an inwardly-extending recess conforming in shape to the shape of, and adapted to surround, the shoe toe, said plate being movably mounted on the base, a spring, seated in the bottom of the socket of the base, and having its upper end bearing against the under side of the pressure plate, so as to normally hold said plate in a raised position above the base, a rod, passing through an opening in the base, which com municates with the socket of said base, and through the coils of the spring within the socket, the upper end of said rod connected to the pressure plate, and means for causing a pull downwardly on the rod, to thereby cause a down movement of the recessed end of the pressure plate against the contrary force exerted by the spring, to cause the edges of the recess to engage the outstanding margin of the toe portion of a shoe upper.

8. In a lasting machine, the combination of a suitable base, provided with a socket, a pressure plate, removably and pivotally connected at one end to the base, and said plate provided at its opposite end with an inwardly-extending recess, conforming in shape to the shape of, and adapted to surround, a shoe toe, and said plate provided, intermediate of its ends, with an elongated, longitudinally-extending slot, a spring, seated in the bottom' of the socket of the base, and having its upper end bearing against the under side of the pressure plate, so as to normally hold said plate in a raised position above the base, a rod, extending through an opening in the base, which communicates with the socket, and also extending through the coils of the spring disposed in said socket, and through the elongated slot of the pressure plate, the upper end of said rod provided with a head, which normally extends crosswise over the elongated slot, a lever, to which the lower end of the rod is removably pivoted, and means for causing a down turning of said lever.

9. In a lasting machine, the combination of a suitable base, a pressure plate, having its outer end provided with an inwardlyextending recess, conforming in shape to the shape of, and adapted to surround, a shoe toe, said plate movably mounted on the base, means for normally holding the recessed end of the plate upwardly, out of contact with the base, a rod connected to the pressure plate, and extending downwardly therefrom, a lever, pivoted at one end, and having the lower end of the rod pivoted to an intermediate point thereof, a link, pivoted to the inner end of the lever, a foot treadle, pivoted at one of its ends, and having the lower end of the link pivoted to an intermediate point thereof, a dog, pivotally carried by the foot treadle, and an arc-shaped toothed upright, in conjunction with which the dog is adapted to operate, in order to releasably hold the foot treadle at any position to which it may be depressed.

10. In a lasting machine, the combination of a table, the top thereof provided with a socket, a suitable base, mounted on the table top, and provided with an opening, registering with the open upper end of the socket, a pressure plate, having its outer end provided with an inwardly-extending recess, conforming in shape to the shape of, and adapted to surround, a shoe toe, said plate being movably mounted on the base, a spring, seated in the socket of the table top, and extending upwardly through the registering opening of the base, and adapted to hear at its upper end against the under side of the pressure plate, means for normally holding the recessed end of the pressure plate in a raised position, and means for bringing the recessed end of the pressure plate downwardly, so as to engage the outstanding margin of the toe portion of a shoe upper.

11. In a lasting machine, the combination of a table, the top thereof provided with an inclined socket, a suitable base, mounted on the table top, and provided with an inclined opening, registering with the inclined socket, a pressure plate, having its outer end provided with an inwardly-extending recess, conforming in shape to the shape of, and adapted to surround, a shoe toe, a coiled spring, seated in the inclined socket of the table top, and extending through the registering inclined opening of the base, and having its upper end bear against the under side of the pressure plate,

llt

ment of the recessed end; of the pressure plate.

, In testimony whereof, I affix my signature,.in presence of two Witnesses.

WILLIAM H. ATKINS.

means for normally holding the recessed end of said pressure plate upwardly, a bolt, connected. to the pressure plate, and extending through the opening of the base, through the coils of the spring, and through an opening extending from the socket of the table top, and means for pulling down- Wardly on said bolt, to cause a down move- Witnesses:

SIDNEY H. STUART, LILLLAN G. KENNEDY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Batente,

Washington, 3. 0'.

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