US291007A

US291007A - Ratchet tool-holder

Info

Publication number: US291007A
Authority: US
Publication date: 1883-12-25
Anticipated expiration: 1900-12-25

Description

(No Model.)

w. E; THAYER. RATGHET 001. HOLDER.

'NOQ Q OO'I.

Paten ted'Deo. 25, 1883.

ATTORNEY a UNITED STATES.

PATENT OFFICE.

\VILLIAM E. THAYER, OF \VILLIAMSBURG, MASSACHUSETTS.

RATCHET TOOL-HOLDER.

SPECIFICATION forming part of Letters Patent No. 291,007, dated December 25, 1883. Application filed July 18, 1883. (N0 model.)

ers, boring tools, &c.-the object being to provide in convenient form an improved toolholder of this class, combining with a handle a suitable tool-shank socket, ratchet devices, and a ratchet-case, as hereinafter set forth.

In the drawings forming part of this specification, Figure 1 is an elevation of a ratchet tool holder embodying my improvements. Fig. 2 is a view partly in section on the line y 3 Fig. 3. Fig. 3 is an enlarged sectional view on the line as m, Fig.1. Figs. 4 and 5 are detail views.

A is a handle, of the form usually used on screw-drivers and similar tools.

B is a ratchet and tool-holder case, provided at one end with a suitable socket to receive one end of handle A, the latter being secured therein by a screw or pin, or in any other suitable manner. Said case B is made of metal, and is providedwith a chamber of rectangular form, having pivoted therein two vibratory pawls, 0 0, behind each of which are springs 11, to force said pawls toward the center of said chamber. A cover, a, is secured on one side of said chamber, havi'ng therein a slide-button, d, to which, on the inside of said cover, is secured a-plate, a". By sliding said button on said cover, plate 00 is carried against either one of the pawls 0 to swing it away from engagement with the ratchet'teeth on the tool-holder e, and by leaving said button in a central.position, as in Fig. 3, both of said pawls are in engagement with said teeth and prevent the holder 6 from turning in either direction in the case B; or, in other words, said pawls compel the holder 6 to rotate in either'direction when the case Bis turned.

A tool-holder, 6, having ratchet-teeth cut thereon, as shown in Figs. 2 and '3, and provided with a socketin its outer end for receiving the ordinary taper-square shank of the screw-driver f and other small tools, is fitted to rotate in the case B between the pawls 0. The inner end of the holder 6 is necked down and provided with a groove around it, and a screw, 2, in case B, has its end projecting into said groove, whereby the holder is retained in the case. i

The holder e is constructed from steel, to the end that the ratchet-teeth thereon may be strong and durable, and that its socket end may withstand,witho ut breaking, any torsional strain to which it may be subjected in use.

\Vhat I claim as my invention is- In a tool-holder, the case B, provided with means for securing the handle A thereto, and having a chamber therein, the t0ol-holder e, passing through the lower part of case B and its chamber in a line with the handle, and having ratchet-teeth formed thereon, the pawls 0 0, pivoted in the case-chamber on opposite sides of the tool-holder, the springs 22, located between the pawls and the sides of the case, the plate as, and the slide-button d, all combined and operating substantially as set forth.

WILLIAM E. THAYER.

\Vitnesses:

OLIVER WALKER, GEORGE L. METGALF.