US1025519A - Electric-lamp bracket. - Google Patents

Description

G. J. DORMANDY. ELECTRIC LAMP-BRACKET. APPLICATION FILED 001210, 1911,

Patented May 7,1912;

' ly 5W ZZ/zinesse Jttorney v UNITED STATES PATENT OFFICE.

GARRY J. DORMANDY, or TROY, New YORK, ASSIGNOR or ONEJ-IALF T0 UNITED SHIRT AND COLLAR COMPANY, OF TROY, NEW YORK, A CORPbRATION OF NEW YORK.

ntEo'rRIo-LAMP BRACKET.

Specification of Letters Patent.

Patented May 11912.

Application filed October 10, 1911. Serial No. 653,934.

To all whom it may concern.-

lle it known that I, GARRY J. DORMANDY, a citizen of the United States, and resident of Troy, Rensselaer county, New .York, have invented certain new and useful Improvements in Electric-Lamp Brackets, of which the following is a specificatlon.

My invention relates to electrlc lamp brackets and fixtures therefor adapted to support a lamp in any desiredrelahon to a table, bench or the like. Its ob ect is to provide a cheap, simple, durable, efficient and easily adjustable bracket; and preferably one of which the parts are frictionally connected, so that a mere touch ofthe operators hand is sufficient to adjust the lamp to desired position.

A further object of the inventlon is to 1nclose and protect practically all the connecting wires or cable.

. Further objects of the invention will ap-' pear in the specification and be polnted out in the claim.

My device is particularly adapted to support a lamp or a series of lamps above a bench or table carrying a number of sewing machines, presses or the like, insuch manner that any vibrations of the bench will not affect the stability of the lamp; I

In the drawings, which represent a preferred form of my invention, Figure 1 is an elevation of the evice; Fig. 2 is a vertical section through the plane 2-2, Fig. 1; Fig. 3 is a vertical section through the plane 3-3, Fig. 2, the last two figures being. on an enlarged scale.

11 designates a work-bench for carrying the machines, not shown, at a suitable dissists as shown of three parts, a body 17, a

head 18, and an intermediate connecting part 19. The body 17 comprises a block 20 having a semi-circular groove 21, and a saddle 22 similarly grooved and. secured to block 21 by screws 23. The opposite face of block 20 is an annular disk 24, from which effective diameter of aperture 28.

projects a central nipple 25 having a threaded aperture 26. The head 18 includes a clamping port-ion 27, through which passes an aperture 28, from which aperture extends to the periphery of the part a slot or kerf 29, a screw 30 being provided for varying the width of the slot and consequently the A lateral face of head 18 formsan annular disk 31 having a central nipple 32 provided with a threaded aperture The intermediate part 19 is of L-shaped cross-section and has two annular disk faces 34, 35, each having a central aperture 36, adapted to embrace nipples 25,32 respectively. Lock washers 37 and set screws 38 serve to secure part 19 with body 1.7 and head 18, see Fig. 3, faces 34,35 of the connecting partg'l9 being held in rotative relation with face 24 ofbody 17 and with face 31 of head 18 respectively,

friction washers 39 being interposed, if desired, between the adjacent rotativefaces.

40 is an incandescent lamp socket carrying bulb 41 and reflector 42. From the rear end of socket 40 extends a tube 43 of substantial length, which passes through aperture. 28 in head 18. The flexible cable 15 passes through tube 43 and connect-s with sbcket 40 in the usual manner.

The operation of the device, in the form shown, will be readily understood from an inspection of the drawings. It will be seen that the suspension of the wire-carrying conduit 12 by rods 13 depending from the ceiling or other overhead support independent of bench 11 secures the isolation of the lam or lamps 41 from the bench, which is ordinarily subject to considerable vibration. Current wires or cables 15 are full protected by conduit 12 and tube 43, except for the short exposed portion, see Fig. 1, necessary-to permit the longitudinal movement of bracket 16 on conduit 12. This longitudinal, as well as a rotary movement, of .the bracket is made possible by loosening one or bot-h of screws 23. A lateral adjustmentof the lamp to any point of a complete circle is sccurable by the swiveling of part 19 on body 17 of bracket 16, see Flg. 1, while any desired vertical movement is provided for in the rotation of head 18 on part 19, see Fig. 2. In addition, tube'43 may be longitudinally and rotatably adjusted through aperture 28 in head 18. Setscrews 38, 38 and 30 are preferably set to offer frictional resistance only to the movements of parts '19, 18 and 43, While screws 23 are ordinarily set to hold the bracket in temporary fixed relation to-conduit 12. It will be seen that the lamp may be brought into any desired fixed point on or above bench 11, 6. 9., the

feed of a sewing machine, press or the, like;

while the lamp, when not in use, can be swun parallelwith and adjacent to conduit 12, w ere it is least liable to breakage. The

I absolute adjustability of the bracket permits .the'use of a lamp of greatly reduced candle ower; thus a four candle lamp at six inches tom the work is equalin light value to a sixteen candle lamp at a foot distance. It is obvious that my invention may be embodied in forms other than thatshown; and that certain features thereof may be advantageously employed without others. I

do not therefore desire to be limited in its scope except by the following claim.

What I claim is:

A unitary electric lamp bracket fixture comprising three parts: a body portion adapted to longitudinal and rotary adjustment on a substantially cylindric support and provided with means for clamping it thereon; a head portion having an aperture therethrough for the passage of a lamp supporting stem and means for holding said stem in desired adjustment therein; and a universal jointconnection between said portions for maintaining them in desired relation with each other, substantially for the purposes set forth.

GARRY J. DORMANDY.

Witnesses:

GEO. L. COOPER, B. H. DAVEY.

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