US1512038A - Fixture stud - Google Patents

Description

F. A. PRICE FIXTURE STUD Filed Oct. 27. 1919 Patented Oct. 2l, 1924.

UNITED STATES FRANK A. PRICE, OF ST. LOUIS, MISSOURI.

nrxfrunn STUD.

Application filed October 27, 1919. Serial No. 333,511.

To whom t may concern:

Be it known that I, FRANK A. PRICE, a citizen of the United States, residing in the city of St. Louis, in the State of Missouri,

5 have invented a certain new and useful Fixture Stud, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to make and use the same.

My object is to provide a fixture stud that may be readily fitted in position and there held without the use of bolts.

In the drawings Fig. lis a plan view of a` stud embodying my invention. Fig. 2 is a side elevation view. Fig. 3 is a sectional view showing the stud firmly attached to an outlet box. Fig. 4 shows a modified form of stud adapted to be attached to the outlet box from below.

It has been the practice heretofore in installing electric wiring for lighting purposes to use a stud with holes therein thru which are passed bolts to attach the stud in the outlet box. It is found in practice that the studs are frequently not firmly attached to the outlet box and at times the nuts are taken off by ignorantor meddlesome persons, so that the stud is pushed up into the aperture above the outlet box. By means of my invention I provide a simple stud preferably of unitary structure and save the cost of the bolts heretoforeused. A greater saving, however, is in reducing the. time it takes to attach a stud to the .outlet box.

In the drawings 7 indicates an outlet box of usual or standard construction showing an aperture 8 adapted to receive the central or threaded portion of the stud. 9 are the usual openings in such outlet boxes thru which bolts are usually passed. 10 is the central portion of my stud, which is preferably threaded; 11 are extending from the threaded portion. `While I prefer to make my fixture stud a unitary structure I .45 may, when desired, spot-weld the arms or a suitable plate with arms on the central portion 10. The arms 11 are made of a material which may be bent, pressed or hammered without breaking. For this purpose I prefer to use malleable iron altho brass, aluminum or other suitable material may likewise be used. Upon the arms 11 are lugs 12.

the axis of the central portion 10. The lugs l2 which are approximately parallel to each other may be inserted in the apertures 9 and upon bending of the arms 11 the lugs are moved out of their aproximately parallel relation and are firmly attached to the outlet box 7. After the lugs 12 have been slipped thru the aperture 9 the wireman flat-tens out the arms 11 and thereby causes the lugs to engage the outlet box 7 so firmly hat the stud cannot be moved from its posilon.

As wireman in attaching a stud of the type shown in Fig. 2 will with a blow of his hammer strike the stud upon the head, flattening out the arms, and thereby causing the lugs to be moved out of approximately parallel relation and engage the sides of the aperture 9 of the outlet box.

In Fig. 4 I have shown a stud which has the lugs 12 on the upper side of the arms instead of the lower side of the arms. Such a stud is used where it is desired to attach a s tud in an outlet box already installed. In this case the wireman slips the lugs 12 thru the apertures 9 and by a blow of the hammer on the bottom of the stud the arms 1l are driven up against the outlet box and the lugsl 12 are spread out, therebyfirmly attaching the stud to the outlet box.

I claim as my invention:

l. A fixture stud comprising a central hanger portion, a bendable portion, a plurality of engaging elements in approximately parallel relation carried by the bendable portion and adapted to be moved out of said parallelrelation on the flexing of the bendable portion whereby the stud may be fixed to an outlet box.

2. The combination with an outlet box' in which are formed apertures, of a fixture studhcomprising a central portion having attaching means, a plurality of engaging elements adapted to freely pass through the apertures in the outlet box, and a bendable element carrying the said engaging elements and adapted when bent to cause the engaging elements to be moved out of their origmal relationship oneV to another and thereby be preiented 'from freely passing out of the apertures in the outlet box, thus holding the fixture stud in desired position.

3. A fixture stud comprising a Central 5 l'lenger porten, 1 plurality of relatively unbelldlb@ lugs adapted to be inserted in the apertures of en outlet box and e bendable member connecting the Central hanger portion and tbe lugs, which bendable niember when bent causes the lugs to be moved out of their original positions and to be firmly held to the outlet box.

FRANK A. PRICE.

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