US1508213A - Grip wrench - Google Patents

Description

sept. 9. 1924. magma J. R. BRAZEALE GRIP WREN'JH Filed Feb. 10. 1923 Patented Sept. 9, 1924.

UNITEDv 'STATES 1,508,213 PATENT AoFFlCE.. f

JOHN R. BRAZEALE, 0F OZAR'K,l MISSOURI.

Application filed February 10, 1923. Serial No. 618,350.

To all whom it may conce-fra:

Be it known that I, JOHN R. BRAZEALE, a citizen of the United States, residing at Ozark, in the county` of Christian and State of Missouri, have invented certain new and useful Improvements'in a Grip Vrench, of which the following is a specification.

The present invention relates to a grip wrench and has for its principal object to provide a structure whereby the range of the jaws may be easily and readily adjusted.

Another important object of the invention is to generally improve upon adjustable grip wrenches of this nature by providing a simple and eft'icent structure which is reliable in operation, durable, light in construction, inexpensive to manufacture, lattractive in appearance, and well adapted to the purpose for which it is designed.

lVith the above and numerous other objects in view as will appear as the description progresses, the invention resides in cer- `tain novel features of construction, and the combination and arrangement of part-s as will be hereinafter more fully described and claimed.

In the drawing- Figure 1 is an elevation of the wrench embodying my invention,

Figure 2 is a longitudinal sect-ion taken therethrough substantially on the line 2 2 of Figure 1, looking in the direction of the arrow,

Figure 3 is a perspective of the xed jaw,

Figure 4 is an edge elevation of the upper portion of the wrench as shown in Figure 1,

Figure 5 is a transverse section taken' substantially on the line 5-5 of Figure 1, looking in the direction of the arrow, and

Figure 6 is an edge view of the shank structure of the movable jaw.

Referring -to the'drawing in detail it will be seen that the preferred embodiment of the wrench consists of the inain handle 1 upon which is disposed the` fixed jaw A. The fixed jaw A is formed by having its body 2 integral with the shank 3 which in turn is integral with the handle 1 and a pair of thickening plates t are disposed one on each side of the body 2. A rib 5 is disposed on the shank 3 extending transversely `of the handle 1.

A movable jaw B is associated with the fixed jaw A and consists of three layers in the present embodiment which are secured together so that it will be of equal thickness with the lixed jaw A. The outer layers terminate in extensions formiiiga `shank 7 These extensions of the shank V7are spaced from each other and have teeth 8 arranged on one edge thereof adjacent the handle 1. One of the extensions ,of the' shank 7 is provided with a groove 9 for receiving the rib 5, itl being understood that when the aws A and B are assembled the shank 7 straddlesv the shank 3 and the jaws A and B may then be moved toward and away from each other.

An operating lever C-is fulcrumed at 10 by a bolt o r a rivet or in any other suitable manner to the handle 1. This operating lever C consists of a handle portion 11 which is U-shaped in cross section for receiving the lmain handle 1. The fulcrum portion o f the lever consists of two spaced` extensions one on each side of the handle 1 and indicated by the numeral 12. The ends of these extensions 12 are provided with teeth 13 capable of meshing with teeth S on the shank 7. When the handle 1l of the lever C is disposed at an angle of approximately with respect to the handle 1 the teeth 13 will he disengaged from the teeth 8 and the range of the jaws A and B may be approximately set. Asthe handle 11 is fulycruined toward the handle 1 the teeth 13 will engage withthe teeth 8 and further fulcruming ofthe handle 11 toward handle 1 will cause the moving of jaw B towardv jaw A for the purpose of gripping a nut or the like. v

The edge of the handle-1 farthest from the handle 1-1 of the operating lever C is thickened by a rib 15 disposed on one vside of the handle adjacent the edge and suitably ixed thereto. This rib not only strengthens the handle 1 but also prevents the hand from becoming cut or injured when squeezing the handles 1 and 11 towards each other. It isl also l to bel noted that the U- shaped cross sectional structure of the handle 11 is formed with the space therein sufficiently small so that when the handle 1 is disposed within the handle 11 there will be a certain frictional 'engagement therebetween so that-the wrench will normally remain in a closed positionl when situated in a tool boxr or in any other receptacle thereby vpreventing the parts thereof from accidentally disasseinbling.

Although I have described my invention with some degree of particularity, itis'to be understood that numerous changes in the details of construction and inthe combination and arrangement of parts may be resorted to Without departing from the spirit of the invention as hereinafter claimed.

Having thus described my invention what claim as new is ln a Wrench of the class described, a liXed jaw, a movable jaw, said ixed jaw consisting of three plates fixed together, the intermediate plate being extended to form a shanlg and said shank being extended to iorm a handle, a rib disposed on the shank and extendingl transversely of the handle; said movable jaw consisting of three plates, the two outer plates being extended to form Shanks spaced 'from each other to receive therebetween the shank of the fixed jaw, one of the Shanks of the movable jaw being provided With a groove for receiving the rib on the shank of the Xed jaw, the edges of the shanks of the movable jaw heilig pro vided With teeth; and an operating lever having a pair of spaced extensions pivoted to the handle and terminating in teeth for engagement With the teeth of the Shanks of the movable' jaw all in the manner and lor the purpose speolied.

In testimony whereof l affix my signaturein presence of two Witnesses.

JOHN Ri BRAZR,flLE llVtnesses L. A. PAYNE, .la H. ADAMS,

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