US179080A - Improvement in carpet-stretchers - Google Patents

Description

S. THOMPSON.

CARPET STRETCHER.

Patented June 20, 1876.

UNITED STATES PATENT OFFICE.

SPENCER THOMPSON, OF BYRON, NEW YORK.

IMPROVEMENT IN CARPET-STRETCH ERS.

Specification forming part of Letters Patent No. l.79,080, dated June 20, 1876 application filed.

April 17, 1876.

ings, and to the letters of reference marked thereon, which form a part of this specifica tion.

My invention relates to certain improvements in carpet-stretchers; and it consists in the construction and arrangement of the various devices, which will be more fully hereinafter set forth and described.

In the annexed drawings, Figure 1 is an isometrical perspective of the complete implement. Fig. 2 is a side view of the extensible arm, with rack and knee-lever. Fig.3 is a view of the under surface of yoke. Fig. 4 is a view of the hand-lever or handle to yoke, and Fig. 5 is a view of one of the adjust-able sectiOlIlSi A represents the extensible arm, composed of the bars a a and the rack I), placed between the latter. The rack 1) moves in a groove formed in the' bar a, and is operated by the scroll-wheel 0, so as to extend the arm and carry forward the head B,w hic has a number of hooks or prongs on its under surface, for the purpose of catching hold of the carpet and drawing itforward, so as to stretch it. The head B is provided with a pin, 61,, placed near its front edge, which passes through a hole in the forward end of the arm A, and also with lugs e e at its rear edge, by means of which,

able lever or handle G, for moving it, and it 7 also has a series of teeth on its under surface, which engage with a bead upon the top of the arm A, and so holds the head B in any desired position. The handle G, having a claw at its end, is useful for drawing nails or tacks.

By attaching to the arm a number of the adjustable sections y, it may be made sufficiently long to extend across the room. These sections are made with sockets 'and tenons or studs, by which they are united to each other, being securely held by means of suitable ferrules. Two of these sections may be joined with a pivot, so as to form a toggle-joint or knee-lever, the extension of which will push forward the arm A and stretch the carpet, with which the prongs on the head Bare engaged.

In laying and stretching a carpet, the rear end of the implement is placed against the mop-board on that side of the room from which extension is to be made, the adjustable sections being arranged with or without toggle-joint, as may be desired. When the toggle-joint or knee-lever is employed, the rack and scroll-wheel are usually dispensed with, as sufficient force is exerted by the extension of the lever to stretch a carpet to the requisite degree of tension.

The operation of the implement is obvious. By applying a suitable force to the togglejoint or knee-lever when employed, it is extended in a straight line, pushing forward the arm A or the toggle-joint may be dispensed with, and extension effected by turning the handle of the scroll-wheel 0, when the bars a a in either case will be pushed forward, carrying with them the head B, and so stretching the carpet with which its prongs or hooks are engaged.

.Instead'of resting the implement against the mop-board, as above described, it may be placed at or near the center of the room, and a bearing obtained by the aid of theV-shaped rod E, which has a ring for fitting over the button It OIIylZhG first adjustable section, and is provided with pointed hooks at its forward extremities for insertion into the floor in ad- Vance of the implement, or into the mop-board at that end of the room to which extension is being made. In this case the knee-lever and adjustable sections are not employed, extension being effected by means of the rack and scroll-wheel. The head B having been ad vanced by either means as far as possible, the carpet is secured by a few tacks until the position of the implement can be changed and the operation repeated.

a handle, G, for operating it, substantially as shown and described.

In testimony whereof Ihave hereunto affixed my signature this 31st day of March, 187 6, in presence of two witnesses.

SPENCER THOMPSON.

Witnesses:

JAS. T. BOYNTON, WARREN J. TYLER.

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