US1537200A - Electric lamp - Google Patents

Description

May 12, 1925.

w. H. SPENCER ELECTRIC LAMP Filed April 4, 1924 Patented May 12, 1 925. I

UNITED STATES.

, H wa PATENT OFFICE. V

WILLIAM H. SPENCER, or Boson 3n, NEW JERSEY, assrsnon TO I. P. FRINK rim, or

NEW YORK, N. Y., A CORPORATION on NEW YORK.

ELECTRIC LAMP.

Application filed April 4,

To all whom it may concern-.-

Be it known that 1, WILLIAM H. SPENCER, a citizen of the'United. States, residing in Bogota, county of Bergen, and State of New Jersey, have invented certain new and useful Improvements in Electric Lamps, of which the following is a specification.

This invention relates to electric lamps and has for its primary object to provide a lamp socket of improved construction and in connection therewith, improved means for releasably mounting a reflectorfor shade thereon. r

One of the objects of the present invention is to provide an improved construction for lamp sockets which are supported by means of a radially projecting fitting or connection thru which the current carrying cord is led into the lamp sockets. Preferably, my in vention contemplates an improved built up construction for reenforcing the lamp socket at the point of support and in combination therewith improved means for mounting or supporting a shade or reflector thereon. whereby said shade or reflector is permitted to be angularly adjustedabout the axis of the socket, removed or replaced and at the same time aiforded a rigid support against tilting movements longitudinally of said axis. Specific features ofthe invention will appear in the specification and he pointed out in the appended claims, reference being had to the accompanying drawings which illustrate a preferred embodiment of the invention.

In the drawings:

Figure 1 is a side elevation of the lamp standard with the shade reflect-or shown in section;

Figure '2 is a section on the line 2-2, Figure 1;

Figure 3 is a section on the line 33, Figure 1;

Figure 4 is a section Figure 1; I

Figure 5 is a perspective view of the on the line 4-4,

spring clamp detached; and

Figure 6 is a transverse section of the outer shell or sleeve of the socket with the reenforcing band and connection piece in position, parts being broken away and parts shown in elevation. 7

Referring more particularly to the drawings, a base 1.. carries a Standard 2 which is surmounted by my improved socket which thru which the electric cord maybe passed.

lntermediately-ofits ends, said sleeve or outer shell 4 is provided with a circumferential reenforcement which is preferably made in the form of a band 6 which before being slipped into position upon the sleeve 4 has its spaced ends secured to a connection 7 in the form .of a cap fitting. said cap being provided with a thruway 8 which registers with the opening 5. enforcement may be constructed as an integrally formed protuberance by forging, casting or rolling this protuberance in the metal when the shell is'formed. The fitting 7 is provided withscrew threads 9 adapting it to be screwed onto the upper end of the standard 2. After the porcelain sockets or cups 8,3, have been positioned within the sleeve 4, and the reenforcing band 6 arranged in the plane of the ad oin1ng ends of porcelain sockets 3, 3, ascrew 10 which is threaded into the reenforcing band 6 is passed thru an opening in the sleeve 4, and as shown in Figure 2, is socketed in a hole in said porcelain cups. By an inspection of Figures 1, 3 and 4, it will be noted that the reenforcing band 6, is preferably provided with flat edges 11 to provide suitable guiding surfaces for the contiguous edges of the spring clamps now to be described. The shade or reflector 12 shown in Figures 1 'and 2, has its aperture presented transversely to the axis of the lamp socket and in the present embodiment of my invention is supported on the curved top wall 13 of a spring clip. This clipas shown in Figure 5 comprises an integral spring metal plate suitably formed to provide depending part circular clamps 14 arranged in oppositely disposed pairs, the clamps on either'side being separated by a vertical slot 15. The edges of the clamps 14 along the slots 15. 15, constitute shoulders 16 which are adapted to abut against and slidably engage the guides or side edges 11 of the reenforcing band 6 on the sleeve 4. As shown in Figures 1 and these abutting edges of the spring clamps and reenforcing band willadord 11 1IQKl' If desired, such reloo support to the shade or reflector 12 against a tilting movement longitudinally of the axis of the socket. At the same time, these interengaging edges or shoulders are arranged in such a way as to permit said shade or reflector to be adjusted angularly about the axis of said socket in the manner indicated in Figure 2. At the same time, said shade or reflector may be readily removed and replaced, the lower extremities of the spring clamps Ll being curved outwardly at 17, to permit said clamps to be sprung over the outer cylindrical wall of the shell or sleeve I claim:

1. The combination with oppositely presented coaxially aranged electric light sockets, a. housing therefor, and suitable means for supporting said housing, of an elongated reflector provided with depending gripping jaws arranged substantially midway of the length of said reflector, said gripping jaws being secured to the inner reflecting surface of said reflector and adapted to releasably engage the outer wall of said housing.

2. The combination with oppositely presented coaxially arranged electric light sockets, of a housing common to said sockets, a. support connected'to the outer wall of said housing, and a reflector extended lengthwise of the common axis of said sockets, and yieldable gripping jaws mounted on the inner reflecting wall of said reflector and adapted to be moved into and out of clamping engagement with the outer wall of said common housing by a movement of said reflector transverse to the axis of said sockets.

3. The combination with oppositely presented coaxially arranged electric light sockets, of a housing common to said sockets, a support connected to the outer wall of said-housing, and a reflector extended lengthwise of the common axis of said sockets, and yieldable gripping jaws mounted :on the inner reflecting wall of said reflectorand adapted to be moved into and out of clamping engagement with the outer wall of said common housing by a movement of said reflector transverse to the axis of said sockets, said clamping jaws terminating short of said housing support.

at. The combination with an elongated reflector for double socket lampsof a spring clip having a portion intermediate to its ends conforming to the transverse curvature of the top inner wall of said reflector and secured thereto-midway-between the ends of said reflector, said clip having oppositely disposed clamps adapted-to be applied to said double socket between said lamps, said clamps being suitably'formet to be wedged apart by theouterwall of said double socket when said reflector is applied thereto in a direction transverse to the common axis of said lamps.

5. The combination with a lamp socket provided with acircumferenti'al band, of a reflector provided with yieldable clamping aws engaging the outer wall'of saidsocket on opposite sides of theaxis thereof, said clamping jaws being slotted to provide guiding. edges in slidable engagement with the lateral edges of said circun'iferential band.

6. The combination witha double ended lamp socket, of a reflector therefor, said lamp socket and reflector, having a yieldable clamping connection permitting angular adjustment of the greflector; about-the axisof said lamp socket and relatively slidable guiding surfaces extending circumferentially around the ZIXIS Of said lamp socket.

WILLIAM SPENCER.

Images