US1970721A

US1970721A - Ratchet wrench

Info

Publication number: US1970721A
Application number: US652633A
Authority: US
Inventors: Walton Allen
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-01-20
Filing date: 1933-01-20
Publication date: 1934-08-21
Anticipated expiration: 1951-08-21

Description

A. WALTON RATCHET WRENCH Aug. 21, 1934,

Filed Jan. 2.0, 1933 lNvENoR BY W ATT RNEY o M pw P n u o 5 4 l 2 6 F F I I I I i I I 'IIJ f l l l |l.|. I l l l l l |l.. a windlw L 7 a, 6

Patented Aug. 2l, 1934 PATENT OFFICE r na'rcmir WRENCH Allen Walton,

Cheney, Wash.

Application :mum zo, 1933, send Nn. sszsss s claim.

My invention relates to an improvement in ratchet wrenches, and the objects of my improvement are: First, to include all voi! the useful features of ratchet wrenches now in use; and I second, to add a means oi' rapidly screwing or unscrewing a nut or bolt as soon as it is sumciently loosened to turn easily, thus speeding up materiali; the work of applying or removing bolted par I attain these objects by the device illustrated in the accompanying drawing, in which:

Figure 1 is a plan view of the entire wrench and Figure 2 is a side elevation with the frame and one gear shown in section.

The socket holder 1, controlled by the ratchet dog 2, may be rotated either by turning the main handle 3 in the ordinary way or through the action of'handle 4 acting through the

gear train

5, 6, '7, 8. Pinion 5 is associated with gear 6 through the ratchet 9. Meshing o! these two ratchet wheels is insured by spring 10. Springs also control the ratchet dog 2 and handle 4. When used to remove a nut, the socket is fitted to the nut and thewrench turned by handle 3 as in the ordinary ratchet wrench. As soon as the nut has been loosened, handles 3 and 4 are squeezed together and the nut is spun of! with one or more strokes o! handle 4. During thisn action, socket holder 1 is prevented from reversing direction by dog 2, and handle 4 is permitted by the ratchet 9 to restore itself under the action p of a suitable spring to normal position after 4being squeezed. Ii the n ut is to be screwed onin- 'stead of removed, the Vsocket is"'applied with the wrench turned over; the nut is spundown and tightened by a reversal of the above process. It will be understood that ratchet dog 2 could be applied to wheel 8 as well as to socket holder 1, or that ratchet 9 could be applied to wheels 7 and 8 instead of

wheels

5 and 6 without changing the principle upon which the device operates. It will also be understood that I do not limit myself to any particular gear ratio in proportioning the gears used, nor to any definite number of gears, since in some applications a high gear ratio may be desirable, while in others a lower gear ratio may be better. The device may, oi course, be built in a variety of sizes.

I claim:

1. In a ratchet wrench, a frame including a handle and a head portion, a socket holder rotatably mounted in said head portion, said socket holder having secured thereto a ilrst gear and a ratchet member, a dogcarried by said trame and engageable with said ratchet member, a gear train carried by said frame one gear of which meshes with said first gear and another gear oi' said train having a ratchet portion, and a second handle pivoted to said fame and having a gear segment at one end meshing with a gear having a second ratchet member in ratchet engagement with the ratchet portion ot said gear train.

2. In a ratchet wrench, a combination of 'a socket holder, a ratchet and a gear forming one unit rotatively mounted in thel frame of said wrench, a dog engaging said ratchet and supported by said frame, a gear. train engaging said gear and socket holder unit and mountedon said frame, a gear of said train having a ratchet portion, a handle pivoted to said i'ram'e and carrying a gear segment meshing with a gear and ratchet unit in ratchet engagement with the ratchet portion of said gear train.

3. In a ratchet wrench, a combination o! a socket holder, a ratchet and a gear forming one unit rotatively mounted in the frame of said wrench, which frame is also the handle, a dog engaging said ratchet and supported by said 9 frame, a gear train engaging said gear and socket holder unit and mounted on said Iframe, a gear of said train having a ratchet portion, a secondary handle pivoted to said frame and carrying a gear segment` meshing with a gear and ratchet unit in ratchet engagement with the ratchet portion ot said gear train.

ALLEN WALTON.

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