US798325A - Wrench. - Google Patents

Description

No. 798,325. PATENTED AUG.Z9,1905. G. H. DADDYSMAN, JR.

WRENCH.

APPLIUATION FILED SEPT. 24, 1904,

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UNITED STATES PATENT OFFICE.

GEORGE H. DADDYSMAN, JR., OF WASHINGTON, DISTRICT OF COLUMBIA.

WRENCH.

specification of Letters' Patent,

Patented Aug. 29, 1905.

Application filed September 24, 1904. Serial No. 225,767.

the accompanying drawings, which illustrate the best form in. which I have contemplated embodying it, and said inventionis fully disclosed in the following description and claims. Referring to the said drawings, Figure 1 is -a perspectiveview of my improved wrench,

showing the telescoping handle extended. Fig. 2 is a longitudinal sectional view of the same. Fig. 3 is a view of a telephone-fuse, showing my wrench in use in connection therewith. Fig/I is a perspective View of the wrench, showing the telescoping handle in closed position.v Fig. 5 is a transverse section of Fig. Y2 on line 5 5. Fig. 6 isla detail of a screw-driver bit attachment.

The object of my invention is to provide a wrench particularly adapted for use in installing telephones and in connection with switchboards and other electrical apparatus, where it is difficult or impossible to use wrenches of ordinary construction, owing to the close relation between the parts and the small size of the various nuts, bolts, and screws ernployed.r

The central portion or handle of the wrench consists of two telescopingfparts, preferably tubular, the one fitting intothe other.` Thus in the form of wrench herein shown, which is particularly adapted for telephone-work, this handle portion consists of a tube A, which fits within a larger tube B. One of said tubes is provided with a guiding projection, which fits in a longitudinal slot or groove in the other part to prevent one of said tubes from turning with respect to the other. In this instance I have shown the inner tube A provided with a screw-plug a, having a guiding portion a projecting from the side of the tube and engaging a longitudinal groove b in the outer tube B. The tube B is also provided with a locking hole or aperture at each end, (lettered, respectively, L and 62,) and the tube A is provided with a spring-catch to enter said locking-apertures to secure the tubes 'projection c, forming the catch.

in the closed position, as shown in Fig. 4, or in the extended position, as shownin Figs. l, 2, and 3. This spring-catch is conveniently formed of a piece of spring-wire C, bent so as to engage the inner wall of tube A and maintain itself in the required position without fastening and provided with an angularly-bent tubes (in this instance tube A) carries my improved open socket-head D, which consists of a segmentof a'cylinder having at its extremity the wrench portion d, which is disposed transversely of the head and the tube or handle A land is very thin in a direction longitudinally of ,the head. The said head is cored out, as

shown at d', in rear of said wrench portion d to a diameter considerably larger than that of the wrench-opening, as is clearly shown in Figs. l, 3, and 4L. The head is thus provided `on one side with the large opening d2, which extends through the cored portion ai and the wrench portion d, and thus enables the wrench portion d to be applied sidewise to the nut, as shown in Fig. 3. In telephone-work it yfrequently happens that a screw is provided with several nuts and washers which must be tightened or loosened separately. In Fig. 3 I have shown a part of a telephone-fuse to better illustrate the manner of using the improved wrench. In this figure a screw l is provided with a nut 2, washers 3 Il, and outer nuts 5 and 6. In this figure I have shown how myI improved wrench may be applied sidewise to the inner nut l without interfering with or touching the washers and nuts 5 and 6. After tightening the nut l, nuts 5 and 6 may also be tightened separately. Fig.

3 also illustrates the desirablility of the extensible handle, as the projecting insuiator? would prevent the use of the device in closed position. In like manner my wrench may be used over binding-posts and the like where the cored head accommodates the projecting parts and enables the wrench to be slipped over the base of the post. It will also be noted that .there are no laterally-projecting parts on the wrench throughout its length, as such projections would interfere with the turning of the wrench in close places. To this end the locking-holes in tube B are preferably countersunk and the locking vpins or studs c do not project beyond the wall of the tube. To extend or collapse the handle, it is only necessary to press in the locking-stud c with the thumbnail,when the inner tube may be moved in or out, as required. It will also One of saidl IOO IIO

be noted by reference to Figs. 2 and 5 that the locking-stud projects from tube A on the side opposite the guiding projection a, thus holding the tubes A and B at two opposite` may be used with this attachment to turn a screw when desired. I

What I claim, and desire to secure by Letters Patent, is-

1. A wrench or tool having a hand-engaging portion, a wrench portion disposed transversely thereto and open at one side, and portions connecting said wrench portion with the hand-engaging portion, of greater diameter` than the nut-engaging recess of the wrench portion, and having an opening in line with the opening inthe wrench portion, substantially as described.

2. A wrench or tool having a hand-engaging portion and a hollow Wrench-head, having a wrench portion at its outer end, and its interior cored out to a greater diameter than the opening in the wrench portion, said head bcing cut away at one side to form an opening communicating with the nut-engaging opening of the wrench portion, whereby the said wrench portion may be applied sidewise to a nut, substantially as described.

3. A wrench or tool having an extensible hand-engaging portion and a hollow head at one end thereof, said head being provided at its outer end with a wrench portion disposed transversely of the hand-engaging portion, said head being cut away at one side and being cored o ut in rear of said wrenchv portion to a greater diameter than the nut-engaging recess thereof, substantially as described.

4. In a wrench or tool, the combination with the hand-engaging portion comprising two tubes, one telescoping within the -other, guiding means for preventing said tubes from rotating with respect to each other, and a locking device within said tubes and having no projecting parts, for holding said tubes from longitudinal movement, when in closed or eX- tended position, the said locking device cooperating with the said guiding means in preventing the rotation of said tubes with respect to each other, of a head secured to one ofv said tubes, substantially as described.

5. In a wrench or tool, the combination with the hand-engaging portion comprising two tubes, one telescoping within the other, a projection on one of said tubes engaging a guiding-groove in the other tube, and a lockingcatch, secured-to one of said tubes, on the side opposite the guiding-groove, and engagingV the other tube, to'preventA the longitudinal movement of said tubes, with respect to each other and to cooperate with said projection and guiding-groove, in strengthening the connection between said tubes to resist torsional strains, of a head secured to one of said tubes, substantially as described.

6. In a wrench or tool, the combination with two telescoping tubes, one provided with a projection engaging a guiding-groove in they other, the outer tube being provided on the side opposite said groove and projection, with locking-apertures, countersunk on the outer side, saidinner tube being provided with an internal spring having a locking-stud for engaging said locking-apertures in the outer tube, to prevent the longitudinal relative movement of said tubes, and to assist said projection and guiding-groove in resisting torsional strains, the countersinking of said locking-apertures permitting the disengagement of saidl 'locking-stud, substantially as described.-

In testimony whereofl I aliix my signature in the presence of two Witnesses.

GEORGE H. DADDYSMAN, JR. I/Vitnesses:

` L. P. WHITAKER,

J. K. MOORE.

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