US1146544A - Wrench. - Google Patents

Description

M. E. ANDERSON.

WRENCH.

APPLICATION FILED SEPT. 18, l9l3.

1, 146,544. Patented July 13, 1915.

ATTK

MAGNUS E. ANDERSON, 0F COKATO, MINNESOTA.

WRENCH.

Specification of Letters Patent.

Patented July is, 1915.

Application filed September 18, 1913. Serial No. 790,555.

To all whom it may concern:

Be it known that I, MAGNUS E. ANDER- son, a citizen of the United States, residing at Cokato, in the county of Wright and State of Minnesota, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to improvements in wrenches and its object is to produce a wrench adapted primarily to remove nuts from vehicle axles or to replace such nuts.

With the foregoing and other objects in view the invention consists in the combination and arrangement of parts to be hereinafter fully described in the following specification, pointed out in the claim and illustrated in the accompanying drawing which forms a part of said specification and in which Figure 1 is a plan of my improved wrench. Fig. 2 is a side elevation of the same. Fig. 3 i; a longitudinal section taken through Like reference characters indicate corresponding parts throughout the several views.

1 is the handle of my wrench which tapers to a point at one extremity as at 2 so that when temporarily out of use it may be stuck in the ground. Made integral with the handle 1 is the socket 3 which is ser rated as at 4 and which is formed with ears 5, 5 that serve as bearings for the axis 6 of the angular movable jaw 7 serrated as at 8. it will be noted that the serrated portion of the jaw 7 extends into the socket 3 while the non-serrated portion is disposed adjacent the handle 1 and rests terminally upon a spring 9 secured to said handle as at 10. The tendency of the spring 9 is to force the adjacent portion of the jaw 7 away from the handle thus forcing the serrated portion of said jaw close against the adjacent wall of the socket. Bearings 11, 11 carried by the handle 1 support the pivot 12 upon which the locking dog 13 works which in one position compresses the spring 9 forcing the serrated portion of the jaw 7 away from the adjacent socket wall as illustrated best in Fig. 3. In the position illus trated in Fig. 2 the dog 13 permits the spring 9 to occupy its normal position.

When the socket 3 has been fitted upon a nut that it is desired to move the dog 13 is thrown into locking position thus firmly gripping the nut between the serrated portion of the jaw 7 and the serrations 4 of the socket. Turning the wrench in one direction will tighten the said nut and in the opposite direction will loosen it. 14- is a crank carried by the handle 1 by which the same is rotated.

What is claimed is In a wrench, a handle formed with a serrated socket to receive a nut, an angular movable jaw pivoted to said handle and extending back upon the same and forward into said serrated socket, a pressure spring secured to said handle beneath one end of said movable jaw, and a dog carried by said handle above said spring and movable jaw capable of locking engagement with the last named member whereby the engaged end of said jaw is forced toward said handle against the tension of said spring and the opposite end of said jaw forced away from the adjacent side of the socket into close engagement with the nut.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two subscribing witnesses.

MAG'NUS E. ANDERSON.

Witnesses:

C. R. PETERSON, C. E. Gsrnnnnne.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0.

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