US1072926A - Electric-lamp fixture. - Google Patents

Description

G. J. DORMANDY. ELECTRIC LAMP FIXTURE. APPLICATION FILED JUNE 7, 191a.

Patented Sept. 9, 1913.

Jti'orneg TED STATES GARRY J. DORMANDY, or TRoY. NEW YORK, AssIGNoR or ONE-HALF T UNITED SHIRT AND COLLAR COMPANY, or TROY, NEW YORK, A conroaATroiv or NEW YORK.

ELECTRIC-LAMP FIXTURE.

Specification of Letters Patent.

Application filed June 7, 1913. 1 Serial No. 772,296.

T 0 al I whom, it may concern Be it known that I, GARRY J. DORMANDY, a citizen of the United States, residing at Troy, Rensselaer county, New York, have invented certain new and useful Improve ing throu 11 said conduit and so that the lamp may be adjusted to and secured in any desired position. Its objects are to atford a convenientsupport for the condu t, to absolutely inclose and protect the wires therein, and to provide complete adjustability to the lamps.

Further objects of the invention and the means by which all are secured will appear in this specification and be pointed out in the claims. I I

In the example of my lnvention chosen for illustration, Figure 1 is a front elevation of one of my lamp fixtures; Fig. 2 is a partial and enlarged elevation of the same; Fig. 3 is a transverse vertical section through the plane 33, Fig. 2; Fig. 4 isa partial rear elevation of the device; Fig. 5 is a vertical transverse section through the plane 5-5, Fig. 4.

Premising that the fixtures are largely used in factories and mills on long tables carrying double rows of machines, as sewing machines, 11 designates a part of such a table on which is secured, as by screws 12, a standard 13 consisting of a flanged column 14, which is a short cylindric' box portion.

15, from which extend in opposite directions sockets 16, into which are threaded set-screws 17. Above sockets 16 and communicatin withthem through box 15, are two oppositely disposed tubular arms 18, at the free end of each of which is a vertical communicating socket 19. As shown, parts 14, 15, 16, 18 and 19 form an integral cored casting, 'the front of box 15 being closed by a plate 20 and its rear having an opening covered by a cap 21. v In each socket 16 1s shown the end of a conduit tube 22, carrying a conducting cable 23, and extending to the next similar fixture, not shown, or to a wall, ceiling'or other fixture at the end of the table. In each socket 19 is a rotatable, trictionally' secured member 24, consisting of a lower tubular portion 25 and an upper cylindric clamping portion 26 having ears 27 connected by a set-screw 28. Secured for frictional rotation Within clamp 26 is a plug portion 29 of an arm-carrying member 30, diametrically" cut away at 31 to form a port which communicates by a passage 32with a transverse tubular portion 33, in the wall of which are set-screws 34-. Mounted for longitudinal and rotary movement in portion 33 is a relatively long tube 35. the inner cndof which may conveniently be closed by a cap 36, while at its outer end is mounted the socket 37' of an incandescent lamp 38, shown as provided with a shade 40. Near the inner. end of tube 35 is cut a longitudinal aperture or slot 39.

The operation of the device will be readily understood from an inspection of the drawings. .It will be seen that the portion 15 forms an outlet box, within which short insulated cables 23 are connected to cable 23, which short cables'lead through arms 18, sockets 19, members 24 and 30, slots39 and tubes 35 to lamps 38; and that these cables, as Well as cable 23 in conduit tubes 22, are inclosed and fully protected for their entire length fromcontact with any of the numerous metal tools, as shears, wrenches or the like, used by the operators. By the.

removal of cap 21 from box 15, a transverse conduitnor cable may be led into" or from the box.- It will be seen that plug portions 25 and 29 rotate in planes at substantial right angles with each other and that lamp tube 35 has both longitudinal and rotary movement in portion 33, so that the lamp may be set in any desired position with relation to the work to be done. v

- In apending application, Serial Number 749,661, filed Feb. 20, 1913, I have shown a hollow lamp support, Which-' is capable of some of the lamp adjustments of the present device. Inthat device, however, the conductin cable is led under the table and up through the hollow standard to each lamp or pair of lamps. In the. resent invention, the standard 13 supports th and their adjusting parts, and also the con- Patented Sept.9,1913.

e lamp or lamps.

. may cut to desired length as he sets up the system.

It will be understood that the number of lamps on each standard forms no part of my invention, and that other mechanical changes may be made in the device without departure therefrom. a

What I claim is:

1. An electric lamp fixture including a standard; a box on said standard; means for supporting an end of a conduit tube in communication with said box; va tubular lamp carrying arm; and hollow swiveled connections between said box and said arm constructed and fitted to permit the pivotal movement of said arm in any direction; said -box, connections and arm being also constructed and fitted to inclose a conducting wire passing therelhrough for its entire fixture including ,a

munication with said box; a slotted; tubular lamp carrying arm; and hollow swiveled connections'between said box and said arm constructed andfitted to permit a limited longitudinal movement of said arm and its pivotal movement in any direction; said box, connections and arm being also constructed and fitted to inclose a conducting wire passing thm'ethrough for its entire length.

- 3. An electric lamp fixture including a standard a box on said standard; means for supporting an end of a conduit tube in,.c0mmunication with said box; and hollow swivclcd connections communicating with said box and adaptedto support alamp carrying arm and to permit the pivotal movement of such arm in any direction; said box and connections being constructed and fitted to completely ,inclose a conducting Wlre passing therethrough. 4. An electric lamp fixture including an integral casting comprising a standard, a

box, a socket for receiving an end of a conduit tube in communication with said box and a hollow part of a swivel connection; also communicating withsaid box.

GARRY J, DORMANDY. lVitnesses a GEo. LLCoorER, B. H; DAVEY.

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