US657502A - Support for electric lamps. - Google Patents

Description

Patented Sept. 4, I900.

WiZZis/I t M M M i w A SWAN SUPPORT FOR ELECTRIC LAMPS.

(Apphcatxcn filed. Jan. 6, 1900) (No Model.)

m: naams Pncns co. wotauwa, wranwurom n. c

UNITED STATES PATENT omen.

WVILLIS A. SWAN, OF PROVIDENCE, RHODE ISLAND.

SUPPORT FOR E LECTRIC LAMPS.

srn'orfionirfoiv forming part of Letters Patent No. 657,502, dated September 4, 1900.

Application filed January 6, 1900- Serial No. 612. (No model.)

To all whom it may concern:

Be it known that I, WILLIS A. SWAN, a citizen of the United States,-residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Brackets or Supports for Electric and other Lamps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to adjustable brackets or supports for supporting lamps, being especially designed to support electric incandes: cent lamps; and the primary object is to provide a support capable of a variety of adjustments, so that when in use 'over desks, tables, and other like places, where the position of the lamp requires to be changed at different times, the lamp may be quickly shifted-to any desired position and there supported without the necessity of the usual fastening devices.

Another object of the invention is to so constructthe bracket or support that its adjustment from one position to another will not stretch or injure the conducting-wires of electric lamps. Other objects will become apparent upon a detail description of the invention. The invention consists, essentially, in the novel construction and general arrangement of the various parts of the device, as will be hereinafter more fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of the bracket or support supporting an electric incandescent lamp; Fig. 2, a longitudinal section of a portion of the bracket or support, taken through the bearings of two of the" joints; Fig. 3, a perspective view of one of the bearing-bushings, and Fig. 4 a view showing the sect-ions folded together.

Referring to the several views, the numeral I indicates a rosette, of any suitable design, which is adapted to be secured to the wall or other desired part of an apartment and is preferably provided with a tubular arm 2, projecting therefrom. The outer surface of the tubular arm tapers from its base toward its outer end for a portion of its length, the remaining portion being cylindrical and screwthreaded. J ournaled on the arm 2 is a yoke 3, the center of which is bored tapering to cor respond to the taper of said arm. A confining-nut 4 serves to hold the yoke on the arm 2,- and in order to prevent the out from becoming accidentally loosened the end of said arm is provided with a slot 7, into which is seated a tang 8 of a washer 9. The ends of the yoke are formed with tapering bearings 10 10, and fitting into each bearing is a correspondingly tapered bushing 11, provided with a countersunk aperture 12 and with two or more'pins 13, projecting from the inner face thereof,

the purpose of which will be hereinafter ex- 7 plained.

Thenumerals 14 14 indicate sections of tubing, which may be of any desired length. To one'end of each section is secured a yoke 15,

the ends of which are formed with hubs 16.

These hubs are provided with a central screwthreaded aperture 17 and with two or more holes 18. The other ends of the tubularsections are provided with yokes 19 19, similar in all respects to the yoke 3. The said ends are made tapering, as shown in Fig. '2, and are internally screw-threaded to receive a short screw-threaded tube 20. The yokes 19 are journaled on the tapering end of the sections and are confined thereon by'nuts 21, screwed onto the ends of said tubes. Washers similar to the washers 9 are employed to prevent the nuts from turning and becoming loose, and the end of each tube 20 is provided with a slot 22, into which the tang of the washer enters. The sections are joined together by inserting screws 23 into the countersunk apertures 12 and screwing them into the screwthreaded apertures 17. "In joining the sections together the pins 13 of the bushings 11 enter the holes 18 in the hubs of the yokes 15, thus securing the bushings to the hubs and causing the turning movement to be on the bushings and not on the screws, which construction prevents the screws from becoming spective ends of the yokes 3 and 15 are brought together and the bushings 11 inserted into the bearings 10, with the pins 13 entered in The sections 1 IOO 7 the holes 18 in the hubs of the yoke 15; The

I screws 23 are then passed through the bushings andscrewed intoithe apertures 17.

j Hinged to the yoke 19', journa1ed on the free end ofithe outer section, is a yoke24,

lamp and,'by reason ofthe peculiar construc- .tion of the jointsof said sectio s, are n ini jured by the fit-arioiusadjustments to which the bracket or support may be subjected.-

' ber of sections may beemployed, as desired.

By'journalingLthe yoke'3 on thearm 2 and thefyokes 18 on the sections various adjustp: ments other. than those permitted. 'by the j hinged joints may be obtained, and byn' akj-z ing thebearings'tapering lostwear'maybe taken up and' the connecting parts kept tight,

thus insuring the support remaining in any 1 position to which it may be adjusted until changed.

a-, Having thusfully described my invention, ,3 1 ,Patent, is-.-

What I claim, and desire to secure byLetters 1. In a support for electric and otherlamps,

" plate, of one or moreadjustable sections piv-- otallyjoined'to said attaching-plate by two y'okes, one of I said .yokes being capable of a rotary notiQnfTWhereby the sectionor sections may be adjusted to various positions.

' 2. In a support for electricfand other lamps,

the combination with a suitable" attaching plat e, of one or moreadjustable sectionspivotally joined 120. said attaching-plate, by'two yokes, one ofsaid yokes being journaled on a taperingarm, xwhereby lost jwear may be pfi a j 3. In asupport for-electric and other lamps,

- the combination with a suitable attachingplate proyide'dwith, an arm,"a yoke journaled on fsaidar m' and provided with tapering bearings in its ends",ofone or more adjustable In order thatthe'sections may be folded to- ,xgether andparallel with each other when de- "sired, one-of the yokes-l9 has its arms bent or curvedjto o iejsidel as shown. Any numsectionspivotally joined to said yoke, one of said sectionsbeing provided with a'yokehav ing hu bs-in its ends, tapering bushings, seated in said bearings, the bushings provided with pinsentering holes in said hubs, and screws "for joining the, yokes together.

g 4;; In a support for electric and other lamps,

plate, .of one orfmore adjustable sections pivotally joined to said attaching-plate by two yokes, one of said' yokes being journaled on [a screw-threaded tapering arm, providedwith an end slot'and securedjon said arm "by a screw-threaded nut, a washer havinga tang enteringsaidslot, wherebylost wear. may be. .j' taken upandthe nut prevented from turning. 1 In testimony whereof I'affix mysignature v in the presence off-two witnesses, the combination with a suitableattachingf 'WILLIS A. SWAN. Witnesses:' I I FREDERICK FLTAFT, 1 GEORGE W. PARKER.

the "combination with a "suitable attaching-

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