US1518169A

US1518169A - Cotter-pin extractor

Info

Publication number: US1518169A
Application number: US638740A
Authority: US
Inventors: Warrington John Gray
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-05-14
Filing date: 1923-05-14
Publication date: 1924-12-09
Anticipated expiration: 1941-12-09

Description

Das- ,1924; misuse J. 331. WARMNGTQN comma PIN EXTRACTOR Filed may 14. 1923 u. G. War/7W,

Patented Dec. 9, 1924.

UN 1 T E JOHN GRA Y HARRINGTON,

COTTER-PIN Appflication filed May 14,

1 '0 all 10 7mm it may concern Be it known that 1, JOHN GRAY Vine niNo'roN, a citizen of the United States, residing at Dansville, in the county of Livingston and State of New York, have invented certain new and useful Improvements in Cotter-Pin Extractors, of which the following is a specification.

This invention has reference to cotter pin extractors, and its object is to provide a device by means of which a cotter pin may be grasped in such manner as to remove it from its seat even though such extraction be forcibly resisted. I

In accordance with the invention, there is provided a pincer-like structure comprising two arms hinged together intermediately and movable about such hinged connection in crossed relation, with one arm terminating in a broad lip and the other arm bent into substantially right angular relation to the lip, so as to approach and recede therefrom and bear thereagainst, the bent arm arching with relation to the first arm, so as to approach and recede therefrom, and said arched arm being so related to the first arm that the nose may enter through the eye of the cotter pin to traverse the same whereby ample force may be brought to bear upon the eye end of the cotter pin to extract it from its seat.

The invention will be best understood from a consideration of the following detail-ed description taken in connection with the accompanying drawing forming a part of this specification, with the understanding that the invention is not confined to any strict conformity with the showing of the drawing, but may be changed and modified as long as such changes and modifications mark no material departure from the salient features of the invention as expressed in the appended claim.

In the drawing:

Figure 1 is a side view of a cotter pin extractor.

Figure 2 is a plan view thereof.

Referring to the drawing, there is shown an extractor 1, comprising two handles, 2 and 3, respectively, with the handle 2 con nected with the handle 3 by means of a pivot pin 4..

The handle 2 terminates in a broad lip 5 oanausvima; :YoaK.

EXTRACTOR.

1923. Serial No. 638,740.

straightened and flattened at the outer end, while the other handle is formed with an arched end 6 of suflicient length to reach to the termination of the lip 5 and bent thereupon in substantially angular relation thereto.

In use, the device or tool is opened up, and the arched end 6 which terminates in an extremity 7, is passed through the eye end of the cotter pin and bears down upon the extremity 5, so that the end 7 is held against the extremity 5 by the extremity 7. In this manner, when the device is in the closed position, the extremity or end 7 passes through the eye of the cotter pin and engages against the extension 5, thus holding the cotter pin in position while being manipulated.

The extremity 7 is so related to the extension 5 as to bear thereupon intermediate of its width and extend through the cotter pin to hold the latter from escape therefrom, while the cotter pin is being manipulated to bend it into locking relation to said cotter pin so that it cannot esca e after being once bent into such locking relation.

The lip 5 is substantially ovate in plane and is provided with a flat inner surface 5, and a convex outer surface 5". The hook 6 is provided at one side with a flat surface 6 and at its opposite side with a convex surface 6". The pointed end of the hook is inwardly disposed and is adapted to engage upon the plane surface of a lip at a point between the edges of the smaller end thereof. By reason of such arrangement, the bill end of the hook may be engaged through the eye of the cotter pin, and the ooiwcx outer surface of the lip may rest upon the fulcrum point, (not shown), and the too] may then be effectually used as a lever for withdraw ing the cotter pin. After the cotter 'pin has been soldered, the tool may be turned over and the other side of the hook may be used as a fulcrum for prying the pin out of the parts in which it is inserted.

Vhen it is desired to remove the cotter pin, the latter is bent to one side, and may be moved out of the locking relation to which it is bent in the first manipulation.

Having thus described my invention, what I claim as new, and .desire to secure by Letters-Patent, is:

A tool for extracting cotter pins comprising handles pivotally connected together, at its opposite side with a convex surface one of the handles being provided at its the pointed end of the hook being inwardly 1 Working end with an elongated lip which is disposed and adapted to engage upon the substantially ovate in plan and provided plane surface of the lip at a point Within the l with a plane inner surface and a convex edge of the smaller end thereof.

outer surface, the other handle having at In testimony whereof I affix my signature. its Working end a substantially arcuate hook provided at one side With a fiat surface and J. GRAY \VARRINGJUN.