US2196701A - Electrician's conduit wrench - Google Patents

Description

.April9,1940. C.S.IHOMSHER 2,196,701

ELECTRICIAN S CONDUIT WRENCH Filed Dec. 14, 1937 IN VENTOR.

ATTORNEY.

Patented Apr. 9, 1940 UNITED sra'r 1 Claim.

This invention relates-to a conduit wrench for electrodes. The modern method of wiring buildings for electricity is to use what is known as thin-wall tubing as conduits for carrying the wiring. Thin wall tubing is cut with a hacksaw which leaves a sharp bur on the interior that interferes with drawing the wires and also results in injury to the insulation. A sharp bur is also formed on the exterior which makes it difficult to insert the tubing into the coupling nuts eniployed for attaching the tube sections together.

impossible to use two of the ordinary wrenches or pliers thereon.

Another object of this invention is to supply a wrench which will be sufficiently thin to allow two or more of them to be used simultaneously on the same coupling without interference with each other.

In building insulations, the tubing for the wiring is often lain again the concrete forms or against the walls so that it is dificult to tighten the couplings with the usual wrench. A further object of this invention is to provide a wrench with nut engaging notches of two sizes. The notches being so positioned that the couplings can be gripped even though they lie against a surface.

Other objects and advantages reside in the 40 detail construction of the invention, which is designed for simplicity, economy, and efficiency.

These will become more apparent from the following description.

In the following detailed description of the invention reference is had to the accompanying drawing which forms a part hereof. Like numerals refer to like parts in all views of the drawing and throughout the description.

In the drawing:

Fig. 1 is a face view of the improved wrench.

Fig. 2 is a longitudinal section therethrough taken on the line 2-2, Fig. 1.

Fig. 3 illustrates the wrench being used to remove an internal bur from the tubing.

Fig. 4 is a similar view illustrating the wrench being used to remove an external bur therefrom.

The improved wrench consists of a fiat, comparatively thin, plate-like handle member It having what might be termed two corners at 2.196.701 ELECTRICIANS CONDUIT WRENCH Carl Homsher, Denver, Colo. Application December 14, 1937, Serial No.179,638

tubing, it is necessary that the coupling be held a o cE each end. In one corner at one end there .is a

small hexagonal wrench socket Il;in the other extremity is a similar large wrench socket 52 also opening to acorner of the member Iii. Below each wrenchsocket is 'a relatively pointed extremity 13 which enables the wrench to be slipped into place even though the tubing coupling be against a supporting surface.

On the corner opposite each wrench socket is a rectangular reaming corner It. Each reaming corner is formed with two beveled cutting edges. The two edges being positioned at right angles to each other and the two cutting edges being oppositely faced. This arrangement allows the corners I3 to be inserted in the extremity of a tubing, such as indicated at It, and rotated so that the cutting edges 15 will cut the hacksaw bur which has been left on the interior of the A tubing prepared by the use of this tool presents a somewhat sharpened edge inclined on both its inner and outer edges so that it may be easily slippedinto the couplings and so that wiring, fishing tapes, etc. can be easily passed therethrough without obstruction.

, While a specific form of the improvement has been described and illustrated herein, it is de" sired to be understood that the same may be varied, within the scope of the appended claim, without departing from the spirit of the invention.

Having thus described the invention, what is claimed and desired secured by Letters Patent is:

An electricians tool comprising a relatively thin flat, elongated handle member, an end of said handle member having a beveled side edge parallel to the longitudinal axis of said handle, and an oppositely beveled end edge at right angles thereto, said edges defining a rectangularcorner with oppositely faced cutting edges, whereby when the tool is grasped in one hand it jmay be con veniently applied at an angle'of approximately forty-five degrees to the end of a tube held in the 55 other hand, to enter its corner into the end of

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