US956280A - Wrench. - Google Patents

Description

G. BRYAR.

WRENCH.

APPLICATION TILED APB..18,1908.

6,280. Patented Apr. 26, 1910.

m v eoz'ge 131' up.

veg-v35 UQMW- WW I by flags oblique jaw BOSTON, MASSACHUSETTS.

WRENCH-.1

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Specification of Letters Patent.

Patented Apr. 26, 1910.

Application filed April 18 1908. Serial No. 427,782.

To all whom it may concern:

Be it known that I, GEORGE BRYAR, a citizen of the United States, residing at Boston, in the county of Sufiol.

assachusetts, have invented an Improyement in Wrenches, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

provide a novel and mproved wrench more particularly of the type known as pipe wrenches.

y invention consists in certain novel features of arrangement and construction to be. hereafter set forth and claimed.

In the embodiment of my invention selected for illustration herein, as shown in the drawings,-Figure 1 is a plan View of the wrench; Fig. 2 is a similar view of the wrench applied to a pipe; Fig. 3 isa similar view showing the wrench applied to a bolthead; and, Fig. 4 invention.

Referring to Fig. 1, the member there shown comprises a member 'a which, at one end, is shaped to provide a head Z), having an oblique jaw c, toothedlat d. The opposite end of the member a is bent upon itself form the member e having an oppositely preferably without teeth.

herein constitute a wrench. It is pre- 6 be integral with shown, since sima modified form of my I The members ferred that the member the member a, as herein plicity of construction,- economy of manufacture is promoted thereby, although it is obvious that such construcj tion is not essential.

When the wrench is adjusted upon a pipe l g, as in Fig. 2, and pressure is applied to the handle, the jaws yield and movetoward I each other, causing the pipe 9 to be nipped in the contracted throat between the two: oblique jaws. This action is, in effect, the same as the nipping action of the jaws of I the well-known Stillson wrench and is obtained without the adjustable and pivotally i Commonwealth of I with equal facility upon advantage when vthe ive and compact, and

compactness and I mounted jaw considered essential to the Stillson type of wrench. Owing to the fact that teeth are provided upon one jaw only, there is no clinging of the teeth to the metal when the pressure is relaxed upon the handle; the. jaw f springs instantly into its normal position releasing the grip of the jaws upon the pipe. The wrench can be used square or hexagonal olt orscreW heads.

Fig. 4 showsa modified form of myinvention wherein the head is offset from the handle members in order. to bring the griptudmal center of the wrench. This is large, as there is then no tendency of the wrench to tip or twist laterally in the hand. y invention is simple, inexpensive, effectin use possesses substantially all the advantages and features of utility of the more elaborate, complicated and expensive pipe wrenches fiow in common use. It is capable of use upon any size of pipe within its capacity without adjustment and no adjusting means is necessarily provided. and the converging jaw faces facilitate the nipping of the embraced pipe. It is of course much more effective than well-known alligator. wrench.

As a new article of manufacture, a oneconiprising a body longirtlon only of Its ers having smooth having piece pipe wrench tudinally slitted for a length to form two mem adjacent edges, said members each a terminal jaw, the active faces thereof be-. ing flared and respectively serrated and.

' in use of plain, said members being capable limited spring movement in the direction of the length of said jaws. I

In testimony whereof, I have signed my name to this specification, in the. presence of two subscribing Witnesses.

, GEORGE BRYAR.

Witnesses Fnrzonmo GILBERT BA: EVERETT S. EMERY.

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. ping point of the-jaws nearer to the lon'gian pipe to be gripped is

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