US762069A - Wrench. - Google Patents

Description

PATENTBD JUNE 7, 1504 0. q. LONGARD. WRENCH.

APPLIOATIOI PILED AUG. 3. 1903.

N0 MODEL.

u um"! UNITED STATES Patented June 7, 1904.

CLARENCE C. LONGARD, OF HALIFAX, CANADA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 762,069, dated June 7, 1904.

Application filed August 3, 1903.

To (all whom it may concern.-

Be it known that I, CLARENCE C. LONGARD, a citizen of Canada, residing at Halifax, in the Province of Nova Scotia and Dominion of Canada, have invented new and useful Improvements in renches, of which the following is a specification.

My invention pertains to shifting jaw wrenches; and it has for its object to provide a wrench of the type stated embodying a construction which is at once simple, compact, easy of adjustment, and sturdyz'. (2., well adapted to withstand the usage to which wrenches are ordinarily subjected.

The invention will be fully understood from the following description and claims when taken in connection with the accompanying drawings, forming partof this specification,

in which Figure 1 is a side elevation of a shifting-jaw nut-wrench constitutingone embodiment of my invention. Fig. 2 comprises disconnected perspective views of the handle and the shifting jaw of the wrench. Fig. 3 is an enlarged transverse section taken in the plane indicated by the broken line 3-3 of Fig. 1, and Fig. 4 is a side elevation of a shiftingjaw pipe-wrench constituting a modification of my invention.

Similar letters designate corresponding parts in Figs. 1 to 30f the drawings, referring to which A is the handle of the wrench. This handle is formed of one piece of steel or other material suitable to the purpose of the invention and has shoulders or abutments a at an intermediate point of its length, a jaw b at its forward end, and a longitudinal transverselydisposed slot 0 intermediate of the said abutments and the jaw. A pin or other suitable abutment (Z is fixed with respect to the handle at a point in rear of and adjacent to the abutments (0 for a purpose presently described.

B is the shifting jaw of the wrench. This jaw is formed of one piece of steel or other suitable metal and comprises a forward portion or jaw proper, 0, movable toward and from the handle jaw 6, rear longitudinal threaded portions f, disposed and movable longitudinally at opposite sides of the handle Serial No. 168,053. (No model.)

dle A between the abutments It and (Z and surrounds and engages the threads of the portionsf of the shifting jaw B. In virtue of this it will be observed that when the nut is rotated the shifting jaw will be moved forward or backward on the handle, according to the direction of rotation of the nut, also that said nut assists the pin C in holding the shifting jaw against lateral movement on the handle.

My improved wrench is used in the ordinary manner to turn a nut or other angular articlethat is to say, the article'to be. turned is secured between the shifting jaw and the handle-jaw by adjusting the former through the medium of the nut D, and power is applied to the handle A, while to disengage the wrench from the article the nut D is turned in the direction opposite to that just stated.

It will be appreciated from the foregoing that my improved construction of wrench is very simple and inexpensive and is at the same time exceedingly strong and well able to withstand great strain, this latter being due in large measure to the fact that the shifting jaw is supported and reinforced by the handle A. i

In the modification shown in Fig. 4 the handle A lacks the longitudinal transverscly-disposed slot of thehandlc A, Figs. 1 and 2, and the shifting jaw B is provided with aloop C, which surrounds the handle A and hasv for its purpose to assist the nut D in preventing lateral. movement of the said jaw on the handle without interfering with the rectilinear movements of the jaw. The said modification also differs from the embodiment shown in Figs. 1 to 3 in that its jaw proper, e, is toothed and its handle bears a pivoted and toothed jaw 7/; but it is otherwise similar in construction to the said embodiment, Figs. 1 to 3, and is pos sessed of all of the advantages thereof. I

1 have cute-red into a detailed description of the construction and relative arrangement of the parts embraced in the present and preferred embodiments of my invention in order to impart a full, clear, and exact understanding of the same. I do not desire, however, to be understood as confining myself to such specific construction and relative arrangement of parts, as such changes or modifications may be made in practice as fairly fall within the scope of my inventionas. claimed.

Having described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a shifting-jaw wrench, the combination of an outer shifting jaw having parallel, longitudinally disposed, integral portions rounded and threaded at their outer sides, a handle arranged between said threaded portions of the shiftingjaw, and held against lat eral movement with respect to the same, an inner jaw at the forward end of the handle toward and from which the outer shifting jaw is arranged to slide, and also having exterior abutments at intermediate points of its length, and an interiorly-threaded nut surrounding the handle and the threaded portions of the shiftingjaw, engaging the threads of said portions, and disposed between the abutments of the handle.

2. In a shifting-jaw wrench, the combination of a handle having abutments at intermediate points of its length, and also having a longitudinal, transversely-disposed slot, a jaw on said handle, a shifting jaw having exteriorly-threaded portions receiving between them the handle, a transverse pin carried by the shifting jaw, and disposed in the slot of the handle, and an interiorly-threaded nut surrounding the handle and the threaded portions of the shifting jaw, and interposed between the abutments of the former, and engaging the threads of the latter.

In testimony whereo t' l have hereunto set my hand.in presence of two subscribing witnesses.

CLARENCE (J. LONGARD.

Vitnesses:

\VAL'rnn K. THOMSON, J. S. TnoMsoN.

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