US1356948A - Pipe and nut wrench - Google Patents

Description

G. B. WEATHEHLY.

PIPE AND NUT WRENCH.

APPLICATION FILED IAN.9. |919.

gtentedl Oct. 26, 1920.

UNITED STATES PATENT OFFICE.

GEORGE B. WEATHERLY, OF SAN FRANCISCO, CALIFORNIA.

PIPE AND NUT WRENCH.

Specification of Letters Patent.

Patented Oct. 26, 1920.

Application filed January 9, 1919. Serial No. 270,399.V

vented a new and useful Pipe and Nut Vrench, of which the following is a speci cation in such full and clear terms as will enable those skilled in the art to construct and use the same.

This invention relates to a combined nut and pipe wrench and an object of the invention is to provide means for quickly adjusting the wrench to different sized nuts or pipes.

This invention is an improvement on my inventions disclosed in United States Letters Patent Number 1,002,615, dated September 5, 1911, and Number 1,122,520 dated April 9, 1912.

Another object of the inventionv is to produce a wrench with a removable jaw in order that it may be used as a pipe wrench when necessary lor smooth jaw substituted to prevent the wrench from marring nuts when applied thereto.

Another obj ect of the invention is to place the adjusting handle in the same plane as the wrench handle so as to make a symmetrical wrench as well as to make a more satisfactory handle.

Another object of the invention is to provide means whereby the wrench will have the extra jaw piece applied thereto in such a manner as to always be at hand when a change is to be made, as well as to make a more salable article.

Another object of the invention is to provide the wrench with a movable jaw which will tighten the wrench on a nut or pipe so that there will be no danger of the wrench slipping when in use. K

Other objects of the invention will' appear as the description proceeds.

An embodiment of the invention is shown in the drawings in which the same reference numeral is applied to the same portion throughout, but I am aware that there may be modifications thereof.

Figure 1 is a perspective View of the complete wrench, n

Fig. 2 is a side elevation partly in section of the complete wrench with the pipe jaw applied, and

Fig. 3 is an end view of the wrench handle showing the pocket for retaining the eXtra jaw.

The numeral 1 indicates the shank of the wrench which has the jaw 2 vformed therewith. Pivotally mounted on the shank is a handle 3 which has arms 3 and 3 on opposite sides of the shank and which is connected to the shank 1 by means ofl the squared pin 4. Said pin permits the handle 3 to be moved longitudinally of the shank 1 when turned to the properposition, and holding it in a fixed position when turned as shown in Fig. 2.

A pin 5 pivotally connects the block 6 to the links 6 in turn pivotally connected to the shank 7 of the jaw 10. The block 6 bears upon the under side of the shank 7 and pushes it into the position for use so that the only strain on the links 6 is that incident to holding the two parts together.

The jaw 10 is notched to engage similar oppositely placed notches in the shank 1 when pressure is applied thereto, and it is held against the shank by means of a U- shaped member having straps 8 and 9 which pass around the shank 1. The jaw 10 is grooved to receive either of the slidable jaws 12 or 12 as may be desired. The jaw 12 has notches to cause it to hold on a circular surface such as a pipe.

These removable jaws are held normally in the position shown in Figs. 1 and 2, and by means of a small spiral spring carried in the back of the slot in the jaw 10. But assoon as pressure is put upon the wrench, the removable jaws slide back into contact with the shank thereby tightening up on the pipe 0r nut.

The under side of each removable jaw 12 and 12 is provided with a recess to receive a set screw 11, so that it is movably held in place and one jaw may be substituted for the other by simply removing the set screw and pulling the desired jaw out, and replacing it with the other.

Since it is necessary to have wrenches of this kind interchangeable for the purposes for which they are to be used, it is always convenient to have at hand, the interchangeable parts. In order to accomplish this result the end of the handle 3 is provided with a pocket which yholds the removable jaw 12 or the removable jaw 12 as the case may be, in the position shown in Fig. 2 and also shown in Fig. 3. Each of the slidable jaws 12, 12 has a dove-tailed portion :to -hold it securely in place asis indicated in Fig. 3. A light spring 14 holds the `jaw in place while permitting it to be easily `removed therefrom.

In operation the handle is moved out to the position shown in Fig. l whereupon the movable jaw may be pushed against the pipe or nut to be turned Aand when the handle is pushed down against the wrench shank, the jaw will be lfirmly 'placed `against the same; and when the wrench is to ybe yreleased, all that is necessary is to raise the handle 3 enough to -pull the movable aw away from the nut or pipe.

The block G has a raised shoulder yat l5 in order to lift 4the shank 7 and its :teeth away from the shank l when the handle 3 is turned away from the handle l fin `order to facilitate moving the jaw l0 lto an ad- -justed position on a nut or pipe.

Having thus described my invention, what I claim as new and desire to secure as versely `movable j aw carried by the slidable jaw, the transversely movable jaw having a dove tailed slide for connecting it to the slidable jaw, a Vspring for holding the transversely movable jaw extended, and a set screw for 4holding it in place vor permitting `its removal `by the withdrawal thereof.

In testimony whereof I have hereunto set my Ahand this 28 day of December A. D. 1918.

GEORGE B. IVEATHERLY.,

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