US1363019A - Electric-lamp fixture - Google Patents

Description

mmumm III IIHIHIIIJIM R. H. SHELDRICK.

ELECTRIC LAMP FIXTURE.

APPLICATION FILED JUNE26, 1920.

Patented Dec. 21, 1920.

UNITED STATEEi RALPH I-I. SHELDRICK, OE XVATERBURY,

CONNECTICUT, ASSIGNOR TO I THE CHASE COMPANIES, INC, OF WATERBURY, CONNECTICUT, A CORPORATION.

ELECTRIC-LAMP FIXTURE.

' Application filed June 26,

Z '0 all whom it may concern:

Be it known that I, RALPH H. SHELD- RICK, a citizen of the United States, residing at Waterbury, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Electric-Lamp Fixtures; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute. part of this application, and represent, in-

Figure 1. a view partly in side elevation and partly in central vertical longitudinal section of a wall-bracket constructed in ac cordance with my invention and shown as assembled for use.

Fig. 2. a view thereof in front elevation on a reduced scale.

Fig. 3. a view thereof partly in side elevation and partly in section with its three component parts separated from each other and arranged in line, though not in the order of assembly.

Fig. 4. a plan view of the supporting nut.

y invention relates to an improved wallbracket for electric-lamp fixtures. Heretofore such wall-brackets have either had their tubular extensions permanently secured to their shells or assembled therewith by means of an inner iron pipe in turn secured to the Wall by a crowfoot. The construction first mentioned is bulky to ship, while the other construction described, requires more parts, is inconvenient to assemble, and is heavy, and so costly to pack and transport. The object of my invention is to produce a cheap and compact article, designed with particu lar reference to convenience and economy of shipment and to being initially assembled by the user himself.

With these ends in view, my invention consists in a wall-bracket having certain details of construction and combinations of parts as will be hereinafter described and pointed out in the claim.

In carrying out my invention, as herein shown, I form a thread 2 and abutment bead 3 upon the inner end of the tubular extension 4 the outer end of which is furnished with the usual ball 5 carrying a nipple 6, but the parts located at the outer end coupling and Specification of Letters Patent.

Patented Dec. 21, 1.920. 1920. Serial No. 391,862.

of the extension form no part of my present invention. With such a tubular extension, I employ a one-piece shell comprising a dome 7, a beaded base 8, and a fasteningfiange 9 having perforations 10 by which the canopy is secured to a wall or corre sponding surface. The apex of the conical dome 7 is formed with a concentric opening 11 just large enough in diameter to receive the threaded inner end of the extension, the abutmentshoulder 4 of which is thus brought to bear upon the outer face of the apex of the dome, as shown in Fig. l. The inwardly projecting threaded end of the extension now has applied to it a special one piece coupling and supporting nut having a threaded sleeve 12 and a supporting-flange 13 turned back, as it were, at an acute angle from the forward end of the sleeve 12 and pitched to correspond to the pitch of the apex of the dome, so that when the sleeve 12 is screwed over the threaded inner end of the extension 2, the outer face of the flange 13 will engage with the inner face of t 1e apex of the dome and so provide a wide supporting surface for maintaining the tubular extension in alinement with the axis of the canopy.

The extension, canopy, and coupling and supporting nut, above described, are packed before being assembled, whereby handling and packing-space are saved. The user has no difficulty in initially assembling them, since he has only to insert the threaded end of the tubular extension into the concentric opening in the apex of the canopy and apply the washer thereto from within the canopy.

It is apparent that under my invention the individual parts may be varied in design, size, and length. so long as the particular features to which my invention relates, are standardized. Thus, it makes no difference how long the tubular extension is, if its inner end is threaded and provided with an abutment-shoulder. nor does the length of the tubular extension or the size or design of the canopy in any way aifect the coupling and supporting nut, so long as the same is adapted in diameter to fit the threaded end of the extension, and so long as its supporting-flange substantially corresponds to the shape of the apex of the shell.

While primarily designed for side-wall brackets my improved construction is 7 called canopy of the ceiling fixture.

I claim: A combined one-plece sheet-metal coupling and supporting nut for use in assembling electric-lamp fixtures having domical shells and threaded and beaded tubular e-xtensions, the said nut having a threaded coupling-sleeve adapted to be applied to the threaded inner end of such an extension and also having a flaring integral supportingflange rearwardly inclined from the outer end of the said threaded sleeve and engag- 15 ing with the inner face of the doinical shell of such a fixture and serving to support the extension thereof against sagging.

In testimony whereof I have signed this specification in the presence of two subscrib- 20 ing Witnesses.

RALPH H. SHELDRICK.

Witnesses JOHN S. NEAGLE, B. C. A'rwoon.

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