US2056502A

US2056502A - Lamp

Info

Publication number: US2056502A
Application number: US39119D
Authority: US
Inventors: Raleigh A Borell
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-09-04
Filing date: 1935-09-04
Publication date: 1936-10-06
Anticipated expiration: 1953-10-06

Description

Oct. 6, 1936. R. A. BORELI? L'AMP Filed Sept. 4, 1955 EEWENTOR QQQLWMQ B 4% m'rommv Patented Oct. 6, 1936 Mrs!) STATES ATENT caries 3 Claims.

This invention relates to the construction of electric lamps and particularly to means for connecting the lamp to a socket.

It is. an object of the invention to provide a connector for lamps by means of which the latter may be quickly inserted in, or removed from, a socket.

Another object of the invention is to provide a connector for lamps which will audibly indicate, during insertion of the lamp into the socket, when the correct connection is obtained.

Still another object of the invention is to provide a lamp in which short circuiting of the leads where they pass outwardly from the stem, due to loosening of the base from the lamp envelope,

cannot occur.

The invention possesses other objects and features of advantage, some of which together with the foregoing, will be specifically set forth in the detailed description of the invention which follows. It is to be understood however, that the invention is not to be limited to the particular embodiment thereof shown and described herein as various other forms thereof may be employed within the scope of the appended claims.

Referring to the drawing:

Figure l is a front elevation, partly in section, of the lamp and the lamp base of this invention mounted in a conventional lamp socket.

Figure 2 is a view similar to Figure 1 showing the lamp removed from the socket.

Figure 3 is a plan View looking into the lamp base in the direction indicated by the arrow 3 of Figure 2.

Figure 4 is a perspective view of the lamp base.

Figure 5 is a perspective view of the seal end of the lamp.

In detail Figure 1 shows a conventional keytype socket 6 provided with the usual threaded, current carrying, sleeve 1 and the resilient con- 0 tact 8.

Adapted to be screwed into the sleeve 1 is an adapter lamp base 9 provided with threads [0, which engage those of the sleeve, and with an insulating bushing l I which carries a headed con- 45 tact pin I2 attached to which, in the interior of the base, is a resilient contact l3. Sweated into the base is a metallic ring I4 provided with a central aperture l5 and a transverse slot [6 passing therethrough and the ring is provided with a 50 peripheral groove I! in which is disposed a tempered wire ring i8 whose portions l9 are straight and are disposed transversely of the slot l6 adjacent either end thereof.

The constricted end 20 of the lamp 2| is pro- 55 vided with a metal bridge 22 having wings 23 (Cl.v 176-32) formed at each end thereof which are bent to conform with the flare; of the seal- 24 where the stem 25.- joins the envelope and the wings are securedto the envelope by a wrapping of cord 26. The upper edge 2l' of the bridge is curved and where it joins the wings 23, is provided with notches 28. One of the leads 29, of the lamp, is brought out through an insulating bushing 30, secured in an aperture bored centrally of the bridge, and is provided with a terminal 3|. The other lead 29 is run outwardly through an aperture 32 in the bridge and is soldered directly to the surface of the latter at the point 33.

Assembly of the parts is accomplished in the following manner. As is shown in Figure l, the end of the lamp carrying the bridge 22 is inserted in the open end of the base 9 so that the bridge will pass through the slot l 6. Pressure is now exerted axially of both the lamp and the base to press them together whereupon the curved upper edge of the bridge will cause the portions IQ of the wire ring E8 to move outwardly until they snap into the notches 28. The lamp and base are now securely attached together. The assembled parts may now be screwed into the socket 6 in the usual manner. One current path, as may be clearly seen in Figure l, is through the sleeve 1, the base 9, the wire ring N3, the bridge 22 and the lead 29, and the other current path is through the contact 8, the contact pin i2, the contact I3, the terminal 3| and the lead 29.

Once the base 9 has been inserted in the socket, it is not necessary to unscrew it therefrom when it is desired to remove the lamp. The removal of the lamp may be accomplished, as is shown in Figure 2, by pulling downwardly thereon whereupon the portions IQ of the wire ring will be forced outwardly sufficiently to release their grip in the notches 28, thereby freeing the bridge and allowing withdrawal thereof from the base.

In inserting the lamp in the base it is evident that when the portions IQ of the ring snap into the notches 28, a loud click will be heard, and that this will indicate that correct connection of the lamp and base has been obtained.

It will be seen that the construction of the lamp, particularly that at the terminals of the leads 29, precludes the possibility of the leads twisting and short circuiting, thereby allowing the lamp to produce a maximum of useful service.

It will also be seen that due to the simplicity with which lamps embodying the invention may be connected and removed from sockets, the annoyance and waste of time attendant upon inserting the conventional lamp into a socket, particularly in a dark room is obviated.

What is claimed is:

1. The combination of an adapter lamp base to be screwed into a lamp socket, said lamp base having a resilient ring therein provided with parallel spaced portions, a lamp having a metallic member secured to the end thereof, said member having spaced notches therein complemental with and engageable with the spaced portions of said ring, and means on said member for guiding said ring portions into said notches when said lamp base and said lamp member are brought together.

2. The combination of an adapter lamp base to be screwed into a lamp socket, said lamp base having a resilient ring therein provided with parallel spaced portions, a lamp having a metallic member secured to the end thereof, said member having spaced notches therein complemental with and engageable with the spaced portions of said ring, and said member having opposed sloping surfaces thereon communicating with said notches for guiding said ring portions into said notches when said lamp base and said lamp member are brought together.

3. The combination of a tubular, threaded, adapter lamp base to be screwed into a lamp socket, an annular member secured in said lamp base provided with a diametrically disposed slot and a peripheral groove opening into said slot, a resilient ring disposed in said groove, said resilient ring being provided with spaced parallel portions crossing said slot at the respective ends thereof, a lamp having a metallic member secured to the end thereof, said member having spaced notches therein complemental and engageable with the spaced parallel portions of said resilient ring and opposed sloping surfaces thereon communicating with said notches for guiding the spaced parallel portions of said resilient ring into said notches when said lamp base and said lamp member are brought together, and said lamp member entering the slot of said annular 20 member of the lamp base when the lamp and base are brought together to prevent relative rotation between the lamp and base.

RALEIGH A. BORELL.