US961673A - Wrench. - Google Patents

Description

I. J. BASKEN.

WRENCH.

APPLICATION FILED MAR. 21, 1910.

961 67 Patented June 14,1Q10.

5140014 for:

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* rare WRENCH.

T 0 all whom it may concern:

Be it known that I, IZADORE J. BASKEN, a citizen of the United States, and resident of Pembina, Pembina county, State of North Dakota, have invented certain new and useful Improvements in renches; and my preferred manner of carrying out the invention is set forth in the following full, clear, and exact description, terminating with claims particularly specifying the novelty.

This invention relates to tools, and more especially to wrenches of that type having a sliding jaw; and the object of the same is to improve the construction of such a wrench.

To this end the invention consists in the details set forth below and shown in the drawings wherein- Figure l is a side elevation of this wrench with its jaws closed upon a small nut. Fig. 2 is a side elevation with the jaws and handles open, and the nearest face plate removed. Fig. 3 is a perspective detail of the movable handle.

Referring to the drawings by numerals, 1 designates the fixed jaw which may have a serrated face 2 and a notched face 8 as for pipes or round work and whose body is preferably shouldered as at a so that the face plates 5 which are secured to this jaw by rivets 6 may be inset behind the shoulders to afford greater strength. It is obvious that the fixed jaw need not extend to both sides of the body of the wrench here formed by the two face plates as will be understood, and that the shape of the jaw faces is not material to the present invention. The face plates 5 extend in parallel spaced relation and are riveted as at 6 to opposite faces of what might be called the fixed handle 7 and the configuration of the whole is about that shown in the drawings.

The numeral 11 designates the movable jaw, also here shown as serrated at 12 and notched at 13, and its body slides between the face plates 5 and preferably has side shoulders 14 moving along their lower edges. Where it projects above their upper edges a bolt or rivet 15 passes through it and rollers 16 are mounted thereon so as to travel on the upper edges of the face plates. The stem 17 of this jaw projects to the rear between the face plates 5 and is notched in its upper edge as at 18, its rear end being Specification of Letters Patent. Patented June 14 1910,

Application filed March 21, 1910.

Serial No. 550,753.

deflected. laterally into a thumb piece 19 adapted to stand between the two handles.

The movable handle 27 is by preference formed in one piece whose thickness is the same as that of the fixed handle 7 plus that of both face plates, and the movable handle is cut away as at 20 on each side for the admission of ears 9 on the face plates so that the latter shall lie flush therein, and finally the main pivot 22 passes through the two ears and the handle between them. Beyond this pivot the body of the handle turns upward as at 23 and is cut away into a cam 24k which is eccentric to said pivot as best seen in Fig. 3. The remaining portion of the handle above said cam is of about half thickness and adapted to pass behind and complement the thickness of the stem 17 of the movable jaw. Near its upper end this portion of the movable handle carries a pin 25 adapted to engage with the notches 18 as best seen in Fig. 2.

This wrench is susceptible of carrying other tool features which would make it in effect a combination tool, but I have thought it desirable to show only one of them which is the wire cutter. It consists in the present case of an ear 30 formed on one of the face plates, and a cutting edge 31 at the extremity of the upbent portion 23 of the movable handle, and it will be clear that when this handle is closed toward the other handle said edge passes across the ear and will cut the wire. The rear end of the handle 27 may have a bail or loop 32 for holding the handles closed as shown.

The fixed handle 7 may have a nail puller in its rear end, and other details may be added without departing from the spirit of my invention.

The entire device is preferably of metal, and the size and proportion of parts is immaterial.

In assembling the parts of this wrench, the stem of the movable jaw is inserted between the face plates and its body raised until its shoulders 14 strike their lower edges; then the outward projection 23 is inserted from the rear between the ears 9 with the pin 25 above the thumb piece and moved forward until the main pivot 22 can be put in place; and finally the bolt 15 is inserted and the rollers 16 attached. Thereafter the parts stand as seen in the drawings. When the handles are open the low side of the cam 24 is beneath the stem 17 and the latter may be depressed by its thumb piece to disengage its notches from the pin 25, after which the entire movable jaw can be set forward or backward to accommodate the nut or pipe upon which the wrench is to be used. As the movable handle is swung toward the other handle, the cam 24: raises the stem 17 until the thumb piece 19 strikes under the face plate of the fixed handle beyond which it projects laterally, and the rise of the same throws one of the notches 18 into reliable engagement with the pin 25; and as the handles are brought together the pin will move the jaw 11 forward toward the fixed jaw. This action of course operates the wire cutter, and the use of the other details is obvious. A reverse movement of the movable handle retracts the movable jaw to release the article grasped, and when said handle is opened far enough the cam 24 presents its low face as shown in Fig. 2 and the stem 17 can drop to disengage the notch from the pin, after which the parts are in position for a repetition of the operation described above. In the movement of the movable jaw forward and backward its shoulders l4: slide beneath the lower edges of the face plates 5 and its rollers 16 travel on the upper edges. These lateral projections should not fit said plates so tightly that this jaw cannot be canted by the thumb piece sufficiently to disengage a notch from the pin 25 and reengage another notch therewith as above described. For cleaning or repair the parts can be disconnected in a manner which will be obvious from the above description.

The novelty covered by this patent may be summarized as:

1. A wrench comprising a fixed jaw and handle constituting a body; a movable aw guided along said body and having a stem of half thickness projecting rearwardly,

notched in its upper edge, and having a thumb piece at its rear end; a movable handle having an upbent inner end of half thickness to complement that of the stem, a

pin adapted to engage said notches, and a cam shaped to raise said stem as the handles are closed; and a pivot between the movable handle and body.

2. A wrench comprising a fixed jaw and handle connected by spaced face plates and constituting a body; a movable jaw between said plates and having side shoulders beneath their lower edges, rollers carried by this jaw and engaging the upper edges of said plates whereby it is guided along said body, and a stem projecting rearwardly from this jaw, notched in its upper edge, and having a thumb piece at its rear end; a movable handle having an upbent inner end, a pin therein adapted to engage said notches, and a cam shaped to raise said stem as the handles are closed; and a pivot between the movable handle and body.

3. A wrench comprising a fixed jaw and handle connected by spaced face plates constituting a body; a movable jaw guided along said body and having a stem projecting rearwardly between said plates and notched in its upper edge; a movable handle having an upbent inner end, a pin therein adapted to engage said notches, and a cam shaped to raise said stem as the handles are closed; ears depending from the face plates astride said cam, and a pivot pin through the ears and the movable handle eccentric to its cam face.

4. A wrench comprising a fixed aw and fixed handle connected by spaced face plates constituting a body; a movable a'w between said plates and having side shoulders beneath their lower edges, rollers carried by this jaw and movable along the upper edges of said plates whereby it is guided along said body, and a stem of half thickness projecting rearwardly from this jaw between said plates, notched in its upper edge, and having a laterally projecting thumb piece at its'rear end; a movable handle having an upbent inner end of half thickness to complement that of the stem, a pin in said end adapted to engage said notches, and a cam shaped to raise said stem as the handles are I closed; ears depending from the face plates, and a pivot pin through the ears and movable handle eccentric to its cam face.

In testimony whereof I have hereunto subscribed my signature this the 16th day of March, A. D. 1910.

IZADORE J. BASKEN. -Witnesses: c

J. H. ANDERSON, N. O. HUSBAND.

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