US243109A

US243109A - crisp

Info

Publication number: US243109A
Authority: US
Publication date: 1881-06-21
Anticipated expiration: 1898-06-21

Description

i UNITED STATES PATENT OFFICE.

JOSEPH E. CRISP, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE COPE- LAND BOOT TREEING MACHINE COMPANY, OF HARTFORD, CONN.

BOOT-TREE.

SPECIFICATION forming part of Letters Patent No. 243,1 09,.dated June 21, 1881. Application filed March 7, 1881. (No model.)

To all whom it may concern Be it known that I, JOSEPH E. ORIsP, of Boston, in the county of Suffolk and Commonwea-lth of Massachusetts, have made a certain new and useful invention in Boot-Trees, of which the following is a full, clear, and accurate description, reference being bad to the accompanying drawings, forming part of this specification, in explaining its nature, in which Figure 1 is a longitudinal section of the boot-tree, with the exception of the foot-piece, illustrating my invention. Fig. 2 is a detail View in section of a portion of the tree represented in Fig. 1. Fig. 3 is an end elevation, and Fig. 4. represents the old method of construction, and upon which mine is an improvement.

The invention consists in the method of and mechanism for securing the back piece of the boot-tree to the front piece.

It is very common to use with one front piece a number of different sizes and shapes of back 'pieces, and thereby obtain a variation of the size or shape of the boot-tree with comparatively slight expense; and it has become desirable, on account of treeing boots and shoes by machinery such as is described in various Letters Patent granted me, to provide means whereby the back may be quickly removed and another substituted and secured in place.

The old method of securing the back pieces to the front pieces is represented in Fig. 4, and it consists in the rod or post-a, fastened to the front piece, A, and projecting upwardly therefrom, and having the transverse recesses a, the screw-thread a, and the nut a The back piece, B, was provided with a yoke, a, which has an opening, a sufficient to permit the front portion of the yoke to be passed through the recesses or slots to in the rod or post. These slots or recesses were located in the rod or post at some distance from the front piece, and to lock the back piece to the front piece it was necessary to move out the adjusting-nut, to permitof the insertion of the yoke upon the rod, and then to adjust the nut, and in removing the back part from the front part this operation was reversed-that is, the adjusting-nut must be screwed outwardly to provide room for the passage of the yoke between the recesses. In addition to the time that it takes to move the adjustingnut,it requires some little time,'comparative- 5 1y, to adjust the position of the yoke in relation to the recesses in the rod to bring them inv line as the back is being put on or taken off.

To practice my invention I provide the rod 6c or post a with the recesses 11, in close proximity to the front piece, as shown in Figs. 2 and 3, and use additionally a spring, b, secured to the front piece, which, upon the insertion of the yoke, tends to throw it upward 6 5 on the rod, so that its edge 0 shall come in contact or shall lock upon the portion at of the rod.

By this construction it is unnecessary to move the adjusting-nut in placing or taking off a back piece, and the portion e of the facepiece acts as a guide in properly locating the yoke in line with the recesses in the rod, so that all that is necessary in placing or removing the back piece is to place the yoke upon said portion of the face-piece and to slide it inwardly, and the action of the spring will then throw it upwardly sufficiently to lock it upon the post, and in removing the back piece it is only necessary .to press it toward the front piece sufficiently to press the spring enough to enable the yoke to be withdrawn through the recesses.

Any desirable mechanism for separating the two parts of the tree may be used in connec- 8 5 tion with this device.

I do not confine myself to the form of spring forautomatically causing the yoke to look upon the post after it has been properly placed in relation thereto.

' Having thus-fully described my invention,

I claim and desire to secure by Letters Patent of the United States 1. The combination, in a boot-tree, of the face-piece provided with the post or rod to, 5 having the recesses b and adjusting-nut M, with the back piece, B, provided with the yoke a and a spring device for automatically varying the position of the yoke upon or in relation to the post or rod in locking the same thereto, substantially as herein set forth.

2. The combination, in a boot-tree, of the 5 front piece having a post, a, provided with recesses b at or near the surface of the front piece, and an adjusting-nut, a with the back piece, B, having a yoke, at, all adapted to opcrate substantially as described.

J. E. CRISP.

-Witnesses:

F. F. RAYMOND, 2d, W. O. Foee.