US663960A

US663960A - Work-support.

Info

Publication number: US663960A
Application number: US71200899A
Authority: US
Inventors: Edward Dawson
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-04-06
Filing date: 1899-04-06
Publication date: 1900-12-18
Anticipated expiration: 1917-12-18

Description

Patented Dec. l8, I900. E. DAWSON.

. WORK SUPPORT. (Applibatiun filed Apr. 6, 1899.) (No Model.)

2 Sheets-Shoat I. I792 WITNESSES: //v VENTOH A TTORNEY.

THE Nonms wzrzns c0, PnoVauma. WASHINGTON. n. c

No. 663,960. Piitenfed Dec. 18,1900. E. DAWSON."

WORK SUPPORT. (Application filed A 'r. e, 1099. (No Model.) 2 Sheets-Sheet 2.

WITNESSES: v

A TTOHNEY.

UNITED STATES? PATENT FFICE.

"EDWARD DAWSON, OF NEW YORK, N. Y.

WORK-SUPPORT.

SPECIFICATION forming part of Letters Patent N o. 663,960, dated December 18, 1900.

Application filed April 6, 1899. $erial No. 712.008. (N0 model.)

ful Improvements in Lasting-Jacks, of which the following is a specification.

My invention relates to improvements in devices upon which boots or shoes are placed to enable their soles to be operated upon or made or repaired.

One object of my invention is to enable a bootor shoe to be securely held upon the last or work-support and to permit of ready ad justment of the holding means relatively to the size or thickness of the boot or shoe. This portion of the invention consists in the combination of a last or work-support, arotative stem connected thereto and having screwthreads and a threaded support for stem, with a clamping-band adapted to pass over a boot or shoe on the last or work-support, and means for holding said band from outward movement, while permitting it to turn with the last or work-support and stem, whereby when the latter is rotated it will move longitudinally within the band to clamp the shoe upon the last or work-support or release it therefrom.

Another object of the invention is toenable the last or work-support and its supporting parts to be swung over from a vertical position to an inclined or horizontal position, while the band still holds the shoe firmly upon the last or work-support.

Another object of the invention is to provide means for holding the stem from rotation in its support when desired and for locking said support in any desired position.

A further object of the invention is to provide a support for the lasting device whose height can be readily adjusted and which can be readily provided with a filling of sand to deaden the sounds of a hammer and make the structure firm and reliable.

This invention further consists in the noveldetails of improvement and the combinations of parts that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying.

drawings, forming part hereof, wherein- Figure 1 is a side elevation of myimproved lasting device. Fig. 2 is a vertical section thereof on the line 2 2 in Fig. 1. Fig. 3 is a horizontal section on the line 3 3 in Fig. 1. Fig. 4 is a horizontal section on the line 4 4 in Figs. 1 and 5. Fig. 5 is a vertical sectional detail view on the line 5 5 in Fig. 4. Fig. 6 is an inverted plan view of the central portion of the last or work-support. Fig. '7 is a detail side view of part of the last or work-support, and Fig. 8 is a partly-broken side elevation of the main standard.

In the accompanying drawings, in which similar characters of reference indicate corresponding parts in the several views, the number 1 indicates a last or work-support which may be of suitable shape and preferably'made of metal, having a depending projection or shank 1 and an annular shoulder l".

2 is a stem or upright, preferably hollow, whi'chsupports the last or work-support '1, the projection or shank 1 passing into said stem, the shoulder 1 resting upon said stem. The last or work-support may be movably connected with-the stem 2 by any suitable means. I have shown a bayonetjoint connection between said parts, consisting of a pin 2, carried by the stem 2 and entering an L-shaped slot 1in the projection or pivot 1 of the last or work-support 1.

The stem 2 at its lower part is provided with screw-threads 2 which work in corresponding threads in a rotative sleeve or support 3, which is journaled in a tubular guide or frame 4:, as shown. The sleeve 3 rests upon a guide-plate 5, that is carried upon a head 6, supported by a suitable standard 7. The frame 4 is pivotally connected with the head 6, so that the last or work-support 1 and the stem 2 canbe swung into an inclined or horizontal position, and for this purpose the frame 4 is shown provided with an extension 4, that is pivotally connected with a bracket 6 carried by the head 6.

At 8 is indicated a clamping-band adapted to hold a boot or shoe upon the last or worksupport 1, and this band is shown passing over the last or work-support down along the sides of the stem 2, through apertures 2 in the wall of the latter, and properly held at its lower secured or inner portion. The band 8 at its lower portion is by preference made of metal at 8,its upper looped or outer portion 8 preferably being made of leather suitably connected to the portion 8, as at 8 The portion 8 of the band 8 has several slots a to receive a headed stud b, which latter is carried by a metal plate 0, secured to the portion 8 of the band. The opposite end of the leather portion 8 of the clam ping-band is detachably connected with the corresponding end of the portion 8 of said band, and for this purpose I have shown the portion 6 of said band provided with a hook 8 to engage a slotted plate 8, carried by the portion 8 of said band. With this arrangement the band may be unhooked at 8 8 and then passed over the boot or shoe that is placed upon the last or worksupport 1, and the length of the band can be adjusted by the stud b and slot a, as may be desired.

The lower portion of the band 8 is connected with the stem 2 by a swivel or pivotal joint, so that said band can be carried around with said stem when the latter rotates without having longitudinal movement. For this purpose I have shown a plate 9, located in the bight of the band 8 at its lower part within the stem 2, from which plate extends a bar 10, which has screw-threads at its upper end that pass through the band Sand plate 9, the bar 10 being firmly clamped thereto by a nut 10. The bar 10 passes through a plate 11, connected with the lower end of the sleeve 3, pins or projections 10 10 serving to limit the longitudinal movement of the bar 10. For the purpose of reducing friction between the bar 10 and the plate 11 when said bar rotates I may provide a cup 12, through which the bar 10 passes and which rests on the pin or projection 10, said cup having a suitable race in which antifrictionballs 13 are located, which balls bear against the plate 11. With the arrangement above described when the stem 2 is turned in such direction that the screw-threads will feed it outwardly the band 8 will be carried around with the stem without advancing, owing to the rotation of the bar 10, and as the stem 2 advances outwardly it will tend to clamp a boot or shoe between said band and the last or work-support 1. When the stem is rotated in the reverse direction, it will release the clamping of the band 8 upon the boot or shoe.

In order to rigidly connect the stem 2 with the sleeve 3 when desired, I provide a thumbscrew 15, which is carried by the sleeve 3 and which may press upon the stem 2. By preference, however, in order to give an increasing clamping action I make one portion 3 of the threads 3 within the sleeve 3 movable, or, in other words, I cut out a portion of one of the threads 3 and reinsert a movable thread 3. (See Figs. 4 and 5.) Pins 16, carried by the sleeve 3 and entering apertures 16 in the thread 3, serve to hold said thread in position. The screw 15 bears against the thread 3 and serves to press said thread against the corresponding portion of the stem 2, whereby a firm clamping action is obtained upon the stem 2 without danger of injury to its threads,

the thread 3 acting as a wedge between the threads 2 of the stem 2.

In some cases it may be desirable to turn the stem 2 slightly in one direction for a distance without allowing it to move back, and for this purpose I provide the sleeve 3 with a series of peripheral ratchet-teeth 17, which are adapted to be engaged by a dog 18, carried by the guide 4. To look the sleeve 3 to the frame 4, I provide a thumb-screw 19, which is carried by said frame 4 and adapted to engage the sleeve 3. The ratchet and paw] are pivoted to allow rotation in one direction and to prevent a reverse rotation and may be used independently of the thun1b-screw,\vhicl1 will serve to lock the sleeve against either forward or backward rotation and is only brought into use when it is desired to hold the sleeve stationary.

By preference an annular external groove 20 is provided in sleeve 3, in which the tapered end of the screw 19 fits. From the above it will be seen that the stem 2 can be locked to the sleeve 3, that the sleeve 3 can be turned in one direction without permitting reverse movement, and that the sleeve 3 can also be locked to the frame 4, and these various movements will be found of advantage in the manipulation of a shoe on the last or work-support 1.

In some cases it is desirable to rotate the entire structure without changing any of the parts that have been previously locked, and for this purpose I make the head 6 rotative on its support 7. The head 6 is therefore centrally pivoted or swiveled and is provided with a series of apertures 6, through which a pin or bar 21 can pass, said pin or bar passing thro ugh suitable aperture or apertures in the portion of the standard 7 beneath the head 6.

By preference the standard 7 is made hollow in the form of a rectangular box adapted to contain sand 22, and to conveniently fill said standard with sand I have shown a tube 23, leading through the upper part of said standard to a central recess 6 in the head 6, the rod 10 and the ball-cup 12 being shown located in said recess. The tube 23 also serves as a pivot for the head 6. Said tube at its upper end is shown provided with external screwthreads 23 which receive a nut 24, and at the upper end of said tube is threaded a funnel 25, located in the recess 6 of the head 6, through which sand can be poured into the standard '7. The lower end of the tube 23 is also screwthreaded to receive a nut 26, by which the tube can be firmly clamped upon the standard. I have shown the upper portion of the standard 7 as composed of a series of boards or plates 7, through which the rod 23 passes. These boards or plates are therefore interchangeable, so that more or less of: them may be used to adjust the height 01: the last or work-support from the floor, as may be desired to suit the requirements of different workmen.

By means of my improvements it will be understood that by passing the band 8 over a shoe on the last or work-support 1 and attaching its ends at 8 8 and by then rotating the stem 2 shoes of diflterent thickness can be firmly clamped upon the last or work-support, and that the last or work-support can then be turned horizontally into any desired position and locked by means of the

screws

15 or 19, or both, and that it can be swung over into any desired inclined position to enable the workmen to operate on the shoes.

I do not limit my invention to the details of improvement shown and described, as they may be varied without departing from the spirit of my invention.

I claim 1. The combination witha last orwork-support, a stem therefor having screw-threads; a threaded sleeve fitting said stem; and a support for said sleeve permitting rotation thereof with a band passed over said last or worksupport; means for holding said band against outward movement; means for locking said stem against rotation in said sleeve; and means for locking said sleeve against rotation in its support, substantially as described.

2. The combination with a last or work-support, a stem therefor having screw-threads, a threaded sleeve therefor, and a support for said sleeve, with a band passed over said last, means for holding said band from outward movement, and means for locking said stem to said sleeve, ratchet-teeth carried by said sleeve, and a dog to act with said teeth to prevent reverse movement of said sleeve, substantially as described.

3. The combination of a last or work-support, a stem therefor having openings in its walls leading thereto, a support for said stem, and means for moving said last outwardly relatively to the support, with a band passed over said last or work-support, said band passing into the openings in said stem, and means for holding the lower end of said band from outward movement, whereby as the last rotates it will be moved away from the fixed end of the band, substantially as described.

4. A hollow standard adapted to contain sand, a plurality of boards or plates thereon, a hollow rod passing therethrough, nuts for holding said rod on said boards or plates and a funnel on said rod, combined with a swivelhead on said standard,a stem connected therewith, alast carried by said stem, aband adapted to pass over said last and means for moving said last outwardly, substantially as described.

Signed at the city of New York, county of New York, and State of New York, this 1st day of April, 1899.

EDWARD DAWSON.

Witnesses:

WM. JAooBsEN, CHAS. G. HENSLEY.