US693687A - Lasting-machine. - Google Patents

Description

No. 693,687. Patented Feb. [8, I902.

12. n. CHAMBEBLIN.

LASTING MACHINE.

A xicaumi filed July 22. 1901.) (Ilo Model.)

4 Sheets-8haet I.

- Patentqd Feb. 18,,l902. 8.. H. CHAMBEBLIN.

LASTING MACHINE. (Application filed July 22, 1901 4 Sheets-Sheet 2,

{No Model.)

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Patented Feb. l8, I902.

4 Sheets-Sheet 3.

R. H. CHAMBEBLIN.

LASTING MACHINE. Application filed m 22, 1991.)

/ IV//// ll (No Model.)

No. 693,687. Pafanted Fab. I8, I902.

B. H. CHAMBEB LIN.

LASTING MACHINE.

(Application mad July 22, 1901 (No Model.) 4 Sheets-Sheet 4.

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UNITED STATES PATENT OFFICE.

RICHARD H. CHAMBERLIN, OF ABINGTON, MASSACHUSETTS, ASSIGNOR vTO THE TACKLESS SHOE MACHINERY COMPANY, OF BOSTON, MASSACHU- SETTS, A CORPORATION OF MAINE.

LASTlNG-MACHINE.

SPEGIFICAI'ION forming part of Letters Patent N 0. 693,687, dated February 18, 1902. Application filed July 22. 1901. Serial No. 69,213. (No model.)

To all whom it may concern.-

Be it known that I, RICHARD H. CHAMBER- LIN, a citizen of the United States, residing at Abington, in the county of Plymouth and State of Massachusetts, have invented an Improvement in Lasting-Machines for Boots and Shoes, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings [0 representing like parts.

My invention has for its object to provide an improved lastingmachine particularly adapted for lasting over the toes and heels of boots and shoes. Prior to my invention machines for this purpose have been devised wherein the toe-rest interposed between the last-support and the toe-lasting devices has been made reciprocable in a direction substantially at right angles with the direction of in-and-out movement of the toe-lasting devices, said toe-rest carrying an adjustable clamp adapted to engage the bottom of the last with the sole thereupon and press the last tightly upon said toe-rest to hold the last to cause it to be vertically reciprocated by and with said toe-rest. Said machines are unsatisfactory in use, because it is desirable that the toe-lasting devices be vertically adj ustable to accommodate variations in spring of a last, and this cannot conveniently be done if the line of up-and-down movement of the toe-rest is always to be maintained in a direc tion substantially at right angles to the plane of in-and-out movement of said lasting devices. Said machines are further objectionable because the clamp or depressor that holds the last upon the toe-rest is movable only by movement of the toe-rest, whereas the said clamp or depressor should be mounted and 40 movable independently of said toe-rest, the latter when moved to be moved by the clamp or depressor.

The various features of my invention designed to eliminate the above objections will be hereinafter fully described and .set forth in connection with the accompanying drawings, forming a part of this specification.

In the drawings, Figure 1 is a side elevation ofamachine,illustratingmyinvention. Fig.

2 is a top or plan view of the machine shown in Fig. 1, the parts, however, being shown on an enlarged scale. Fig. 3 is a vertical longitudinal section of the machine shown in Fig. 1, the section being on the dotted line 3 3,

Fig. 2; Fig. 4, an enlarged rearend elevation I,

of the toe-lasting head, showing the rollingplates and means for cont-rolling the same; Fig. 5, an enlarged sectional detail of a part of the depressor or fore-part clamp; and Fig. 6, a detail in the vicinity of the base of the column of the machine, showing the manually-operable means for controlling the movements of said'clamp and the toe-rest actuated thereby.

Referring to the drawings, particularly to Fig. 1, A is a column mounted upon a suitable base and carrying adj ustably at its upper end the head B, a clamping-screw b serving to clamp said head in desired vertical position upon the said column.

The head B at its right, Fig. 1, has mounted upon it the carrier 0, arranged to vibrate about the transverse horizontal pivots c to enable the parts carried thereby to be accommodated to variations in incline or pitch of the heel end of the last. This carrier 0 sustains at its opposite sides two springs 0 that carry the heel-lasting devices, shown as in the form of wiper-plates 0 that maybe of anysuitable or desired constructiomactuated in suitable or usual manner, as by a handle 0 Said carrier 0 also supports the usual heel-band 0 adapted to embrace the heel of the last and confine the material thereto during lasting. Instead of these particular lasting devices, mounted as here shown, any other suitable or well-known type of lasting devices may be employed. The last-support is shown as in the form of a usual heel-post d, mounted upon one end ofa treadle (Z, fulcrumed upon the base at d and adapted at d for engagement by the foot of the operator. This post is made adjustable as to its length as by the nut (Z cooperating with a threaded portion of said rod to enable it to be adjusted to varying heights for the varying lasts that are to be used in connection with the machine. A stop-nut (1 also threaded upon the said heel-post, cooperates with a yoke (1 extended laterally from the column A, and limits downward movement of the post with the last thereupon. i

The head B at the left, Fig. 1, is provided with two vertical supports e, between which is pivoted upon the transverse horizontal pivots or trunnions e a carrier Pfithat is supthe plate f, the latter being connected to the 7 said carrier 6 through the medium of the longitudinal pivots f, which permit the said plate and parts connected therewith to be adjusted by and with the plate a for variations in spring of the lasts and also permit said plate f to roll from side to side about its pivots f upon the carrier 6 and in whatever inclined position the latter may be to accommodate the roll of the fore part of the last. The platef is adjusted transversely about its pivots f to meet the roll of the last by means of the adjusting-screw f (shown in Fig. 4,) carried by an ear f of the plate e This screw f also engages an ear f (shown in dotted lines, Fig. 4) on the said plate f and is provided with an operating-handle f rotation of which operates quickly and conveniently to roll the said plate and its parts to one or the other side, as may be required.

Referring to Figs. 1 and 2, the toe-lasting devices 9 g, shown as wiper-plates and constructed and operated in usual and wellknown manner, are arranged upon the plate f and are operated by a usual operating-handle g. An adjusting-screw h, Fig. 2, furnishes means for setting the toe-last plates initially nearer to or farther away from the toe of a last, according to the requirements of a particular last or shoe.

My invention is not necessarily restricted in the parts thus far described to the particular construction shown, as any suitable or desirable toe and heel lasting devices maybe employed in connection with the features to be desoribed,wherein I consider reside the important features of my invention.

Referring now particularly to Fig. 3, the toe-rest m, of suitable or desired construction, is shown mounted upon the upper end of a sliding spindle or support m, arranged in a suitable guideway in the head B, said spindle having a collar m between which and a support 072 at the lower end of said guideway is interposed a spring m This spring surrounds the spindle m and tends constantly to lift said spindle and its toerest into their uppermost positions, the adjustment of the collar m determining the extent of vertical movement of the spindle by its said spring. A laterally-extended handle m on the lower end of said spindle furnishes means by which the toe-rest may be given slight rotative movement to enable it the better to fit a particular shoe and also more particularly to enable the operator to depress said toe-rest independently of the other depressing means to be described. A series of holes on in the spindle 'm' enables the handle m to be inserted in the spindle in one or another position, thereby to varythe spring-controlled upward movement of the toe-rest independently of the collar m Referring now particularly to Figs. 1, 3, 5, and 6, the column A, at its rear side, is provided with a suitable bearing 02, in which slides the vertically-movable tubular rod 71., connected at its lower end by a rod 12. with one end of a treadle-lever 02 Fig. 6, pivoted on the base at n and having its other slotted end in engagement with a pin or on the treadle-lever n fnlcrumed at n also on the base. Depression of the treadle-lever n by the foot of the operator will operate to raise the tubu lar rod n, above mentioned, a spring at acting to return said parts to their original positions. The hearing it carries a guide-screw a that enters a vertical longitudinal groove 07, on said tubular rod to restrain the latter against rotative movement in said bearing, while permitting free longitudinal or vertical movement therein. The tubular rod 12 receives within it the shank o of the depressor or clamp 0, Fig. 5. A spring 0 interposed between the shoulder o of said shank and a shoulder 0 within said tubular member and surrounding said shank, tends constantly to lift the said depressor or clamp out from said tubular member. This lifting tendency of the spring 0 is resisted, however, by a dog 0 Fig. 5, pivoted upon the tubular member at 0 and pressed by a spring 0 into engagement with one or another of the notches 0 formed in said shank 0'. These notches may be conveniently formed by a spiral threadlike groove cut in said shank. The means described permit the depressor or clamp 0 to be adjusted vertically on and relative to the tubular member at, so as to make the clamp or depressor an adjustable one for obvious purposes.

The operation of the machine above described briefly is as follows: The last carrying the shoe to be lasted, the latter having been first pulled over upon the last,is mounted upon the heel-post d, as indicated in dotted lines, Fig. 3, and the heel mechanism moved bodily forward to bring the heel-band into engagement with the heel of the last by usual means controlled by the handle o Figs. 1 and 2. In this position the toe of the last is supported by the toe-rest m, Fig. 3, and normally occupies a position at a level slightly above the level or plane of in-and-out movement of the toe-lasting devices described.

The operator now, while holding the operating-handle of the toe lasting devices in his left hand, with his right hand swings the depressor or toe-clamp 0 into position overlying.

the bottom of the fore part of the last (the shank of the depressor rotating freely in the tubular rod 71, that carriesit) and by depressing the treadle-levern with his foot causes the said clamp or depressor to be brought down upon the bottom of the fore part of the last, clamping the latter firmly upon the springsupported toe-rest. The last is now firmly clamped between the clamp or depressor 0 and the toe-rest with a pressure limited by the strength of the toe-rest-supporting spring and which may be anything less than that, according to the degree of pressure exerted upon the treadle by the operator. The operator now through the operating-handle g brings the toe-lasting plates forward to meet the sides of the last in the vicinity of the toe thereof and then further depresses the treadle-lever n, and thereby depresses the fore part of the last and through it the toerest, and thus by depression of the last causes the wipers in contact with the toe portion of the shoe to wipe the material upwardly about and upon the toe portion of the last preparatory to being wiped inwardly thereover by further inward movement of said lasting de vices while the last is so depressed. It is usually desirable to repeat this depression of the toe portion of the last by the treadle of several times to cause the wipers to make several successive upward or smoothing movements about the toe of the shoe before the latter is finally lasted in upon the sole. The toe-rest-supporting spring in each case returns the parts to their uppermost positions upon release of the foot-treadle 91 If for any reason while the last or shoe is being held in its depressed position it becomes desirable to loosen the fore part from its clamp temporarily to shift the position of the fore part for any purpose, the same may be done by further depressing the toe-rest by means of the handle m without disturbing the level of the shoe in the machine, Where it continues to be held by the clamp or depressor 0, and as soon as the handle m is released the toe-rest-supporting spring immediately raises the toe-rest against the fore part of the last again to hold the latter firmly for work thereupon. Furthermore, the toerest being spring-supported and independent of the depressing mechanism permits the toerest to be automatically depressed under the action of the advancing toe-wipers should the level of the toe of the last be slightly higher than it should be for proper advancement of the toe-wipers over the edges thereof. This prevents cutting the upper around the edges of the toe, which would ordinarily result were the clamp and toe-rest connected as one mechanism, no part of which could be automatically moved without the whole.

The adjustment of the clamp or depressor upon its toe-supporting post or rod provides for lasts of varying depths through the instep and for soles of varying thickness, &C.

My invention is not limited to the particular embodiment here shown and described, but may be varied within the spirit and scope of the invention.

' I claim- 1. In a lasting-machine the combination with movable toe-lasting devices and means to operate the same of a vertically-sliding spring-supported toe-rest, treadle-operated means independent of said toe-rest for depressing the latter through the medium of the last, and other andindependent means for depressing said toe-rest.

2. In a lasting-machine the combination with movable toe-lasting devices and means to operate the same of a vertically-sliding spring-supported toe-rest,means independent of said toe rest for depressing the latter through the interposition of the last, and other means for depressing said toe-rest Without the interposition of said last.

3. In a lasting-machine a vertically-sliding spring-supported toe-rest, a treadle-operated depressor for the same to operate through the interposition ofalast, and independent means directly connected with said toe-rest to depress the latter without the interposition of said last.

4. In a lasting-machine a vertically-sliding spring-supported toe-rest provided with a handle by which to depress the same, and a treadle-operated toe-rest depressor operating through the interposition of a last upon said toe-rest.

5. In a lasting-machine a spring-supported toe-rest and depressing means therefor comprising a treadle-operated tubular rod, a lastdepressor having its shank received within said tubular rod, a spring tending normally to expel said shank from said rod, and lock ing means to engage said shank on said rod, for the purpose described.

6. In a lasting-machine a spring-supported toe-rest and depressing means therefor comprising a treadle-operated tubular rod, a lastdepressor having its shank received Within said tubular rod, a spring tending normally to expel said shank from said rod, and automatic locking means to engage said shank on said rod, for the purpose described.

7 In a lasting-machine a spring-supported toe rest and depressing means therefor comprising a treadle-operated tubular rod, a lastdepressor having its shank received Within said tubular rod, a spring tending normally to expel said shank from said rod, and automatic ratchet-locking means to engage said shank on said rod, for the purpose described.

8. In a lasting-machine, aspring-supported vertically movable toe-rest, means directly connected therewith for depressing the same, independent treadle means also for depressing said toe-rest through the interposition of a I In testimony whereof I have signed my last, said treadle-operated depressing means name to this specification in the presence of and said toe-rest reciprocating in fixed subtwo subscribing witnesses.

stantially vertical lines, and lasting devices I RICHARD H OHAMBERLIN to operate upon a last supported in part by said toe-rest, said lastin devices being ad- \Vitnesses:

just-able relative to said toe-rest to meet the FREDERICK L. EMERY,

roll and swing of a last thereon. l A. E. CHESLEY.

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