US1326022A

US1326022A - Wrench

Info

Publication number: US1326022A
Authority: US
Publication date: 1919-12-23
Anticipated expiration: 1936-12-23

Description

E. B. CALLAWAY.

WRENCH. APPLICATION FILED JULY 18, 1919.

1,326,022. Patented Dec. 23,1919.

INVENTOR. E5 UQ/ZZZWW .1 TTOR NI'I Y.

W I TNESSHS EDWIN B. CALLAWAY, OF MEDICINE LODGE, KANSAS.

WRENCH.

Specification of Letters Patent.

Patented Dcc. 23, 1919.

Application filed July 18, 1919. Serial No. 311,654.

To all whom it may concern Be it known that I EDWIN B. OALLAWAY a citizen of the United States, residing at Medicine Lodge, in the county of Barber and State of Kansas, have invented new and useful Improvements in Wrenches, of which the following is a specification.

This invention comprehends the provision of a wrench, wherein the handle is given a peculiar formation, for the specific purpose of adjusting the nuts of the fourth connecting rod of Ford motors. In the construction of machines of this character, the transmission casing projects an appreciable distance forwardly on the fourth connecting rod making it impossible to use the well known type of socket wrench in conjunction with the fourth connecting rod, after the bottom of the crank casing has been removed. It is therefore the purpose of this invention, to overcome these objections by devising a construction which can be conveniently handled in conjunction with the fourth connecting rod.

The nature, and advantages of the invention will be better understood when the following detailed. description is taken in corn nection with the accompanying drawings, the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawing forming part of this specification like numerals of reference indicate similar parts in the several views and wherein Figure 1 is a fragmentary sectional view of a Ford motor showing the manner of using the invention.

Fig. 2 is a view of the wrench in elevation.

Fig. 3 is a transverse sectional view taken on line 3-3 of Fig. 2.

The wrench forming the subject matter of this invention, embodies a handle indicated generally at A, and upon one end of which is arranged a socket B. The socket is arranged at right angles to the adjacent extremity of the handle, and has a ratchet wheel 10 associated therewith. Spring pressed pivoted pawls 11 and 12 respectively are associated with the handle, and adapted to alternately engage the ratchet wheel 10 in the usual well known manner. For the purpose of maintaining one of the pawls out of engagement with the ratchet wheel while the other pawl is in operation, I provide a collar 14 mounted for rotation between the lugs 15, the collar being formed with a lip 16 adapted to alternately engage the adjacent end of the respective pawl for the purpose mentioned. It is to be understood how- 1 over that in conjunction with the rest of the character or type disclosed, any suitable pawl and ratchet mechanism may be employed.

The chief characteristic of the invention resides in the particular design of the handle A to permit of use of the wrench in conjunction with the fourth connecting rod of a Ford motor. To this end the handle is provided with a substantially U-shaped portion adapted to be grasped by the hand of the operator when manipulating the wrench. One of the parallel limbs 18 of the U-shaped port-ion 17 terminates to provide a compara' tively short right angularly disposed portion 19 with which the breast engaging plate 20 has a swivel connection. The remaining parallel limb 21 of the U-shaped portion terminates to provide a stepped arrangement in a direction of the socket B. The limb 21 is bent at right angles to provide the portion 22, which terminates to provide the angularly disposed portion 23 arranged in parallelism with the limb 21. The angularly disposed portion 23 is connected with the socket by means of the arcuate or curved extremity 2% of the handle for the purpose tobe presently described. The purpose of these particular bends ant. curvature of the handle clearly indicated in Fig. 1, wherein it will be noted that subsequent to the removal of the bottom of the crank case, the formation of the handle permits the socket B to be arranged in a vertical position for association with the nut connecting the fourth connecting rod with the crank shaft. The curved extremity 9.4 of the handle clears both the adjacent edge of the transmission. casing to properly position the socket B with the parts to be operated upon, and also clears the crank portion of the engine shaft where it joins or connects the third connecting rod. The straight portion 23 clears the opening of the transmission casing while the vertical portion 22, clears the point of the radius rod. In addition to these facts, the angularly disposed

portions

22 and 23 respectively disposes the lower end of the wrench and the breast engaging plate 20, so that the operator can assume a position beneath the machine to view the parts to be operated upon. The U-shaped portion 17 provides for the convenience of handling the tool as an entirety, permitting the socket B to be easily and quickly associated with the connecting rod nut while in a lying position beneath the car. The pawl and ratchet mechanism permits the wrench to be partly rotated in a proper direction to either tighten or loosen the connecting rod nut, as the occasion may require and then be re- ,versed to obtain a new purchase.

While I have shown and described what I consider the preferred embodiment of the invention, I desire to have it understood that I do not limit myself to the exact construction and arrangement of parts disclosed, and

"that said changes may be resorted to when desired as fall Within the scope of What is claimed.

What I claim is A wrench for the purpose set forth comprising a U-shaped portion at one end, one terminal thereof being off-set, a breast plate carried by said off-set, the opposite end of said U-shaped portion being extended: in stepped relation and in a plane substantially diagonal from the said portion, a terminal of said extended portion being curved, a socket carried by said curved portion, and a pawl and ratchet mechanism associated with said socket.

In testimony whereof I afiix my signature.

EDWIN B. GALLAWAY.