US851106A - Combined pipe and monkey wrench. - Google Patents

Description

Q WitnS5B-S: Inventor.

No. 851,106." PATBNTED APR. 23,1907.

G. 0. RICE. COMBINED PIPE AND MONKEY WRENCH.

' APPLICATION FILED JAN. 16, 1907.

GEORGE 0. RICE, OF SAN FRANCISCO, CALIFORNIA.

COMBINED PIPE AND MONKEY WRENCH.

Specification of Letters Patent.

Patented April 23, 1907.

Application filed January 16,1907. Serial No. 352,507.

To all whom it may concern:

Be it known that I, GEORGE O. RroE, a citizen of the United States, residing in the city of San Francisco, California, have invented certain new and useful Improvements in a Combined Pipe and Monkey Wrench, of which the following is a specification in such full and clear terms as will enable those skilled in the art to construct and use the same.

The objects of this invention are to make a wrench that can be used either as a pipe wrench or as a plain monkey wrench; to make a Wrench that will under all circum stances operate, even if the lever that moves the shifting head happens to get broken; to make awrench that will be as simple as is consistent with the use to which it is to be put; to make a wrench that can be used for the purpose of a hand vise, when desired; and to generally improve the construction of such wrenches.

In the drawings: Figure 1 is a side elevation of the wrench with one of the lugs that carries the lever broken away to show the end of the threaded pin, the spring being partly compressed, and Fig. 2 is an elevation of the wrench with the jaws facing the front.

The wrench 1s built on a shank 1 having a head 2 and a movable jaw 3, which latter is held in place on the shank 1 by means of two ears 4, 4, which surround the shank. The wrench may be used as a plain wrench, or it may be provided with removable serrated jaws as 5 which fit in a recess in each jaw.

The movable jaw is slid on the shank 1 by means of the threaded member 6 which carries the milled head 7 to enable the user to move the jaw 3 at will. This milled head on most wrenches has but a very small play in a slot as 19, in the shank 1, but in this wrench means are provided to move the jaw 3 after the milled head has been turned tight, so the slot in the shank l is made somewhat larger than is usual in order to allow the milled head and its threaded member 6 to move slightly. The movement is accomplished by means of a pivoted handle 17, which bears on an extension 8 of the member 6. This extension 8 extends. through the projecting end of the casting 12 that is usually placed at the top of wrench handles to hold the member 6 in the proper position, and it in turn is provided with two milled nuts 10 and 11 which take the thrust from the projecting ear of the handle 17. This car extends between the two milled heads, and has at the point 16 a slightly raised portion the object of which is to bring the point of motion of the lever as near to the fulcrum as possible.

The handle 17 is pivoted on a pin 18 which extends through the depending ears 13 of the piece 12.

In order to keep the milled head 7 down at all times against the piece 12 a small coiled spring 9 is placed around the pin 8 and between it and the milled nut 10. It will be observed that the nuts 10 and 11 may be moved on the part 8 so as to increase or decrease the pressure exerted by the spring 9, and this movement will also vary the posi tion assumed by the handle 17 a thing which is often necessary with different kinds of work.-

To hold the wooden handle 14 in place a common ferrule 15 is provided.

It will be noticed that even if the lever 17 gets broken or injured in any way that the wrench is just as effective, as a monkey wrench, as it was before, for the reason that the milled head will always seat on the part 12 in any event. A further advantage of this wrench is that it has the movable lever on the side of the shank which is usually clasped by the fingers of the operator, and he can in this way graduate the pressure that I he applies on the movable jaw 3, a thing which is not. readily done where the movable lever is placed on the side clasped by the palm of the hand.

The movement of the threaded member 6 by the lever 17 is but very little, and the pressure that can be exerted on the movable jaw is for the same reason very considerable, since theoperator has it in his power to clasp the handle 17 at a point very considerably removed from the pivot 18.

The operation of the wrench is as follows: The wrench is placed on the pipe to be turned, and the milled head 7 is screwed tight the jaw 3 seating firmly on the pipe, or nut, the person using the same then grasps the handle of the wrench and presses the handle 17 toward the handle 14 as hard as may be necessary to turn the pipe, the spring 9 immediately loosening the jaws when the pressure on thehandle 17 is removed.

Modifications from the illustrated invention, within the scope of the appended claims, are hereby reserved.

What I'claim as new and desire to secure by Letters Patent of the United States is:

1. In a combinedpipe and monkeywrench, the combination of a shank having a fixed and a movable jaw, a fixed extension on the shank on the same side thereof as the jaws, a screw bearing on the fixed extension and adapted to move the movable jaw, an extension of the screw through the shank extension and a pair of threaded nuts carried by the screw, and a lever bearing on the nuts and adapted to give an additional thrust to the movable jaw, substantially as described.

2. In a combined pipe and monkeywrench, the combination of a shank having a fixed and a sliding jaw, a fixed extension on the shank 011 the same side thereof as the jaws, a screw bearing in the fixed extension on the shank and adapted to move the slidable jaw, an extension of the screw through the exten sion of the shank, a lever pivoted to the shank extension and adapted to bear on the screw to give an additional movement thereto, and means carried by the screw to maintain it and the slidable jaw in a retracted position when the lever is not under pressure, substantially as described.

3. In a combined pipe and monkey wrench, the combination of a shank having a-fixed and a movable jaw, a fixed extension on the shank on the same side thereof as the jaws, a

screw bearing in the fixed extension and adapted to move the movable jaw, an extension' of the screw through the fixed extension of the shank, a spiral spring surrounding the screw extension and adapted to move the movable jaw toward the handle end of the shank, threaded nuts on the screw extension, and a lever bearing on one of said nuts whereby an additional thrust may be imparted to the movable jaw, substantially as described.

4. The combination of a shank having a handle, a fixed and a slidable jaw, a fixed extension on the shank on the same side there of as the jaws, a screw adapted to move the slidable jaw and extending through the fixed extension of the shank, a spiral spring surrounding the screw extension and adapted to draw the slidable jaw toward the handle end of the shank, a pair of threaded nuts carried by the screw, a lever having an extension between the threaded nuts and pivoted in the shank extension, substantially as described.

In testimony whereof I have hereunto set my hand this 9th day of January A. D. 1907.

GEORGE 0. RICE.

Witnesses:

C. P. GRIFFIN,. HENRY P. TRICOU.

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