US1697291A - Adjustable wrench - Google Patents

Description

Jan. 1, 1929. 1,697,291 J. D. SPENCE ADJUSTABLE WRENCH In yen for Patented Jan. 1, 1929.

*lTE STATES PATENT OFFIQEJ.

JOHN D. SPENCE, OF EAGLE.ROCK, CALIFORNIA. A a I ADJUSTABLE ,WRLENGH.

Application filed June 9, 1925. Serial No. 35,883.

invention relates toadjustable wrenches,

' and has for its main object to provide certain have shown one practical embodiment of the same on the accompanying sheet of drawings, which I will now describe.

Figure 1 is aside elevation of a wrench for use on nuts and embodying my invention;

Figure 2 is a fragmentary sectional view, taken on line 22 of Fig. 3

Figure 3 is an end view of the wrench, looking at the left hand end of Fig. 1;

Figure 4 is a sectional view through the wrench at line 4-4, of Fig. 2; and

Figure 5 is a sectional view through the wrench at line 55 of Fig. 2.

Referring to the drawings in detail, the body of the wrench comprises a. fixed or integral jaw, 1, and the handle, 2, which handle can be of any desired form and size. The main jaw body 1 is hollow, as at 3 and 4, Fig. 4, thus providing the opposite side members, 5, 5, the edges of which, on their lower halves, are provided with ratchet teeth 6, 6, as shown clearly in Fig. 1. Slidably mounted in said body, between said side members, 5, 5, is an adjustable jaw, 7 having a tubular part, 8, fitting in the hollow part 4,'of said body, and somewhat smaller in diameter than said hollow part 4, as will be clear from Fig. 5, for a purpose hereinafter again referred to. On its opposite sides, nea-r the lower side thereof, said adjustable jaw is provided with a few ratchet teeth, 9, adapted to intermesh with the teeth, 6, 6, in the side members, 5, 5, as indicated. -A guide pin, 10, is secured within the hollow part 4, of said body, the end of said pin being screwed into the wall of an extension, or angle, 11, and the other end of said pin extending into the tubular part of the adjustable jaw 7, as clearly indicated in Fig. 2. A coiled spring, 12. is placed around said pin, within said hollow part 4, and extended down into said tubular part, 8, of the adjustable jaw, as indicated in Fig. 2. The purpose of this spring is to move said adjustable jaw out when it is released from the teeth, 6, 6, as hereinafter described. A plunger 13, is mounted in the handle portion, 2, adjacent said body, the innerend of which terminates in a pin 14, bearing against the tubular part of the adjustable jaw 7, as shown in Fig. 2. A spring 15 is placed around the pin part'14, and tends to. normally move said "plunger 13, outwardly to ltS'IlOI'f mal or limited position. Aistop pin, 16;, though the body, serves to limit the movements of said'plunger,"by reason of "the re cess 17 cut in the side of the plunger. A stop pin 18, also serves to limit the outward movement of the adjustable jaw and its tubular part 8, by reason of the lug, 8, thereon. Said lug 8 moves in an offset, 4, in the rear of the hollow part 4, as shown in Fig. 4, and also indicated in Fig. 2-. In adjusting the jaw 7, the guide pin 10 is flexed sufiiciently to disconnect the teeth 9 from the teeth 6.

The operation of said wrench may be briefly described as follows: When it is desired to adjust the jaw 7 outwardly, pressure is applied to the plunger 13, which moves said jaw 7, out of engagement with the ratchet teeth 6, 6, said hollow part 4, being large enough to permit this limited movement, as will be clear from Fig. 5, whereupon the spring 12, will move said jaw 7, downwardly to the limit. When it is desired to move said jaw 7 upwardly, or towardthe fixed jaw 1, the user simply places his thumb on the lower end of the projecting tubular part, 8, of said aw and presses it upwardly, the teeth permitting said jaw to be moved in one direction, but preventing it from being moved outwardly until the teeth 9 are disengaged from the teeth 6, by pressing inwardly on the plunger 13, as hereinbefore described. Thus said adjustable jaw is quickly and conveniently adjusted to nuts of different sizes by simply pressing the, plunger 13, to permit the wrench to open,

and then pressing the tubular member 8, forming apart of the adjustable jaw 7, until it engages the nut on which the wrench, is placed. 7 I

I do not limit the invention to the details as shown and described, except as I may be limited by thehereto appended claims;

I claim: e A

1. A wrench of the character shown and described including a jaw body having a jaw portion and a body of hollow construction providing a'slideway tranversely of said jaw portion, a movable aw having a aw portion corresponding to the jaw portion of said jaw body and having an interfitting portion slidable in, said slideway and slightly smaller than said slideway, wherebyto permit relative movement of said interfitting portion within said slideway, there being intermeshing teeth on the movable jaw and said jaw body adapted to be moved out of mesh with each other when said movable jaw is moved relative to said jaw body within said slideway, and a plunger extendingthrough said jaw body into said slideway, the end of which engages with said movable jaw to move it relative to said slideway to disengage said teeth, and a spring for normally moving said movable jaw when said teeth are disengaged from each other by pressing said plunger 2. A wrench of the character referred to comprising in combination, a body having a fixed jaw and handle, said body. having ratchet teeth and being hollow, an adjustable jaw having a part moving in said hollow body and having teeth to intermesh with said ratchet teeth, a pin provided with a spring in said hollow body and extended into said part on said adjustable jaw for moving said adjustable jaw outwardly when released, said adjustable jaw being movable away from said ratchet teeth to disengage its teeth therefrom, and an operating member to move said adjustable jaw to disengage said teeth.

Signed atv Los Angeles, Los Angeles County, California, this 2nd day of June,

JOHN'DQ SPENOE.

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