US834219A - Ratchet-wrench. - Google Patents

Description

UNITED STATES PATENT OFFICE.

GEORGEH. YOUNG, OF WELCOME, WISCONSIN, ASSIGNORITO ABRAHAM 'LORENZE, OF STEVENS POINT, WISCONSIN.

RATCHET-WRENCH.

Specification of Letters Patent.

Patented Oct. 23, 1906.

Application filed October 23,1905. Serial No. 283,895.

To all whom it may concern: 7

Be it known that I, GEORGE H. YOUNG, a citizen of the United States, and a resident of Welcome, in the county of Outagamie and State of Wisconsin, have invented a new and useful Improvement in Ratchet-Wrenches, of which the following is a specification. My inventionrelates to a ratchet-wrench for general use'in machine-sho s and upon all descriptions of machines, bot as a wrench and for tapping threads in not. easilyv accessible places in machinery and for cutting threads upon bolts in such places, and it is further fitted for use as a socket-wrench.

It consists of 'a cogged wheel revoluble Within a groove in a suitable holder consisting of two similar pieces which are clamped together by means of a band or bands, said wheel being provided with a central perforation for fitting a nut or shank of the thing to be turned or for cutting a thread if for use as a die, said two-part holder having each a shank extending outward a suitable distance for the connection therewith of a handle,

'the handle being pivoted to the shanks of said two-part holder so as to be turned into a position at right angles with the holder for its use as a socket-wrench, a spring-actuated pawl being arranged in the holder for engagment with the teeth of said wheel and producing a ratchet action thereof, the mechanism being illustrated in the accompanying drawings, in which Figure 1 is a plan of the Wrench. Fi 2'is a side view of the wrench. Fig. 3 is a p an of 1 a screw-cutting die adapted for use with said wrench. Fig. 4 is an edge view of a band or clamp for holding the two-part holder to- 'gether. Fig. 5 is a plan of the pivot-pin side of one part of the holder.

which connects the two-part-holder shanks with the handle. Fig. 6 is a plan in section of the two parts of the holder with the cogged wheel in position therein and showing the engagement of the pawl with the teeth of the wheel. Fig. 7 is an edge View of the out- Fig. 8 is an edge view of the inside of one part of the holder. Fig. 9 is a plan of the pawl. Fig. 10 is an edge view of the'engaging end of the pawl. Fig .11 is a section through the holdererforation for receiving the pawl within the holder thereof. Figs. 6 to 11, inclusive, are upon a larger scale than the previous ones.

Similar numerals indicate like'parts-in the several views.

1 indicates the wrench-handle; 2, duplicate holders having rectangular shanks 2 and 2 8 and 3*, bands for clamping said holder together; 4, a pin having athread 4 and head 4 5 5, a nut-socket and a screw-cutting die, respectively, for fitting within the v pin 18, the straight face being for engaging with the teeth 10 and the curved back for allowing said teeth to slide over the catch without becoming engaged therewith. The collar 15 is for preventing the catch from receding too far from the teeth 10 and between which and the shoulder 19 of the pawl-socket 20 a spring 21 is mounted.

The bosses 17 are for holding the dog or catch 12 out of engagement with the teeth 10 the holder-pieces having a circular perforation into the socket 20, at each side of which perforation grooves 22 are provided, into which the bosses are fitted to enter andallow the pawl-pin to slide freely, its sliding outaround. By pul ing the pin outward and turning it one-quarter around upon the righthand side of the holder the catch upon the left-hand side when in engagement with the teeth 10 of the nut-socket will allow the screwing on of a right-hand-threaded nut, and upon the throwing of the catch upon the lefthand out of and the one upon the right into en agement said nut can be turned off of its bo t. The pin 18 is only for pulling the catch out of and throwing it into engagement with the teeth 10. The spring 21 acts to throw the catch into engagement with the teeth 10.

The form of the holder-pieces 2 is shown in Fig. 11, the ends of the curved part extending beyond the center of their inner curve,

and Within which curve the groove 23 is formed and into which the outer edges of the nut-socket, screw-cutting die, &c., are fitted tion.

to enter and operate. The pawl-socket 20 and boss-grooves 22 are also shown in said figure.

The operation of the wrench will be obvious to any mechanic without a further description, as the wrench consists of few parts, which are simple in construction and opera- Having described my invention, what I claim, and desire to secure by Letters Patent,

cate holders for securing them-together, a

spring-actuated pawl arranged in each of said duplicate holders for engaging with the outer circumference of the aforesaid die or tool holder, and for being held out of engagement therewith at will, a handle pivoted to the shanks of said duplicate holders and being adapted to be swung around at right angle with said shanks, and a second cla1np fitted to the shanks of said duplicate holders outside of the first-named clamp and covering the oint of the handle and shanks sufficiently for holding said handle parallel with the shanks of said holder, and a pin for the joint of said handle and shanks arranged to pass through the shanks of said hold er and to extend outside thereof sufliciently for retaining the clamping-bands upon said shanks, 40

substantially as described.

GEO. H. YOUNG.

Witnesses:

GEORGE JORGE, F. W. RArsLER.

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