US2024160A

US2024160A - Turret-head wrench

Info

Publication number: US2024160A
Application number: US9410A
Authority: US
Inventors: Goerg Walter
Original assignee: Air Reduction Co Inc
Current assignee: Airco Inc
Priority date: 1935-03-05
Filing date: 1935-03-05
Publication date: 1935-12-17
Anticipated expiration: 1952-12-17

Description

Dec 17, 1935. W GOERG 2,024,160

TURRET HEAD WRENCH Filed Marh 5, 1955 INVENTOR r mew - ATTORN Y Patented Dec. 17, 1935 UNITED sTATEs TURRET-HEAD WRENCH Walter G oerg, Woodclifit, N. J., assignor to Air Reduction Company, Incorporated, New York, N. Y., a corporation of New York Application March 5, 1935, Serial No. 9,410

4 Claims.

This invention relates to wrenches of the type having a turret head with a number of fixed jaws spaced to fit nuts or bolt-heads of different sizes, the turret head being rotatable to bring the jaws of the desired spacing into position to grip the work.

The wrenches of this type in the prior art have been equipped with various expedients for locking the turret head and wrench handle together for any selected position of the head. A latch or looking means employed to hold the turret head against turning on the handle is a part which is liable to become broken or damaged so that the wrench can not be used; furthermore, such devices are a complication in the use of the wrenches, and increase the cost of manufacture.

The object of this invention is to provide a turret-head wrench which is simpler and less expensive in construction, more convenient to use, stronger in action than prior wrenches of this general kind, and devoid of any relatively fragile parts. The wrench of the invention is characterized by a construction such that the work gripped by the wrench holds the turret head against movement with respect to the handle and obliges the parts to move as if they were rigid. Wrenches embodying this invention require no latch or locking means for holding the turret against rotation, and are, therefore, more 30 reliable and convenient and more economical to manufacture.

In the accompanying drawing, forming a part hereof:

Fig. l is a plan view of a wrench embodying 35 the invention;

Fig. 2 is a side elevation of the wrench shown in Fig. 1; and

Figs. 3 and 4 are plan views of the handle and turret head, respectively, as they appear before 40 the wrench is assembled.

The wrench comprises a handle I having an extension II providing an abutment or fixed jaw I2 in position to bear against one side of the work when the wrench is in use.

45 A turret head I4 has recesses I5, I6, I! and I8 in its periphery. These recesses have parallel walls comprising spaced jaws I9, and the recesses are of different size so that the jaws are spaced to grip various sizes of work. The head I4 is.

5 rotatably connected to the handle It by a pivot 20 on which the head can be turned to bring any one of the recesses into cooperative relation with 5 dle I0 and one jaw I9 of the recess I5 is in substantially the same plane with the fixed jaw I2. When the parts are in this relation and the jaws of the recess I5 embrace the work, the wrench handle can be turned clockwise, and the head I 4 will move with the handle because the fixed jaw I2 bearing against the work will prevent relative movement of the handle and head as long as the rotation is in this direction. If the work must be turned counter-clockwise, the wrench will be turned over so that the fixed jaw I2 will contact with the other side of the work. 10

Each of the recesses I5, I 6, I1 and I8 is so disposed in the head I4 that one jaw of each can be brought into substantial register with the fixed jaw I2. The head I4 can, therefore, be turned into position to engage the work with the jaws of any of the recesses, and the presence of fixed jaw I2 will compel the head to turn with the handle in the direction in which efiort is applied.

It is not necessary to have a jaw of the selected recess in the plane of the fixed jaw I2 when the wrench is applied to the work. If these jaws are not in the same plane, the handle ID will turn with respect to the head until the fixed jaw I2 comes into contact with the work, after which the head and handle will turn in unison as if rigidly connected.

Although the fixed jaw I2 is a fiat jaw similar to the spaced gripping jaws I9 and extends substantially parallel to the direction of the handle in the illustrated embodiment of the invention, neither of these features are necessary to the invention. The essential characteristic of the fixed jaw I2 is that it comprises an abutment in fixed relation to the handle and extending into position to contact with a side of the work which is in the grip of the spaced jaws.

Various changes and modifications can be made without departing from the invention as defined in the claims.

I claim:

1. A wrench comprising a handle with a rigid abutment thereon, and a head rotatably connect-- ed to the handle and including a plurality of pairs of jaws of difierent spacings, so arranged that one jaw of any pair may bear against the same side of the work as the rigid abutment.

2. A wrench comprising a handle having a single fixed jaw adapted to extend along one flat of a nut or other work, a turret head rotatably connected to the handle and having a plurality of recesses forming spaced jaws for gripping work of different sizes, one jaw of each recess being adapted to lie in substantially the same plane with the face at one end adapted to bear against a side of the work, and a head rotatable on the handle and having a. plurality of recesses forming spaced jaws adapted to fit work of different sizes, said jaws being so disposed in the head that one jaw of each recess is in the plane of the flat face on the handle at some angular position of the head so that the jaw and face bear against the same side of the work and the work prevents the head from turning with respect to the handle.

WALTER GOERG.