US1568815A - Electric-lamp socket - Google Patents

Description

R. ECKSTEIN Jan. 5 1926.;

ELECTRIC LAMB SOCKET Filed March 16, 1922 ATTORNEY 'raeniea ian. 5,1926.

- 1 UNITED STATES,

4. 1,568,815. FATE-N ELECTRIC-LAMP SOCKET.

Application filedMarch 16,1922. Serial No. 544,111.

ToaZZ whom, 225 may concern:

for decorative purposes as in Christmas tree outfits and the like.

One object of this invention is to provide a miniature electric lamp socketin which the partsare readily assembled and disassembled and comparatively cheap to manufacture.

Another object is to provide a device of the character described comprised of comparatively cheap materials and parts and having means for insuring positive contact between the lamp and the socket.

v A still further object is to provide a device of the character described which shall be cheap in construction and nevertheless eflicient in operation to a high degree.

A Other objects of this invention will in part be obvious and in part hereinafter pointed out.

' .elements and arrangement of parts which will be exemplified in the construction hereinafter dsecribed and of which thesco'pe'of. application will be indicated in the followmg claims. p

In the accompanying drawings, in which is shown one of various possible illustrative,

embodiments of this invention,

Fig; 1 is a vertical cross-section of 'a lampsocket embodying my invention shown with an electric lamp in place therein;

Fig. 2 is adetail cross-sectional View taken along line 2--2 of Fig. 1.

Referring in detail to the drawing, 10 indicates a miniature lainp' having the plug connection portion 11 comprised of the usual outer screw contact shell 12 and the contact disc 13 suitably insulated therefrom. The socket comprises a "suitably shaped body. portion 14: of cheap, easily workable material, such for example as wood, and having a centrally disposed cylindrical opening 15 therein for housing the. parts of the'contact making device. The

The invention accordinglyconsists in the features of construction, combinations of r OFFICE.

REUBEN ncxs'rzem, on NEW Yomr, 'N. Y.

latter consists of a screw contact shell 16 fitted into the upper portion'of the opening 15 and, frictionally held therein. One of the lead wires such as 17 is electrically con-' nected to this shell 16, as by soldering, as at 17' so that when the plug portion 11 of the lamp is screwed thereinto the lamp is connected to one side of the supply.

Located in the lower portion of the openmg 15 is a disc 18 of insulating material in which is frictionally held a contact piece 19 connected to the other side of the supply by the other lead wire 20. This contact piece ispositionedas to be disposed beneath the contact disc 13 of the lamp so as to make contact therewith. A spring member 21 is held between the bottomwvall 22 of the.

opening 15 and insulating disc 18- so that its tension acts on the latter to urge the contact piece 19 against the contact disc, 13 when the lampis screwed into the socket thus insuring positive contact.

.A central opening 23 is provided in the bottom of the socket wherethrough the lead wire 17 passes into the opening 15. A similar opening 24 is provided for the lead wire .17 and the latter extends into the socket through a semi-cylindrical groove 25 formed in the side-wall of the opening 15 as will be clear from Fig. 2. This groove 25 runs in close proximity to the shell 16 so 'that thellead wire 17 is confined between the shell and the "groove and held in position.

. If desired, an opening 26 may be provided near the end of'the body portion of the socket whereby the latter may be secured to a support such as a pin 27 extending from the limb of the Christmastree.

It will be noted that the contact making parts, that is the shell 16 and the disc 18 together with its contact piece 19 and' the spring member 21 are all in separate pieces that may be readily assembled in position within the opening 15 and removed therefrom as desired The shell 16, while of such diameter as to fit snugly into the opening 15 may nevertheless be lifted out by prying'with a pin 01 other suitable tool in serted into the counter-sunk annular space- 15*, or .may be removed when the lamp is screwed thereinto by pulling on the lamp. The disc 18 together with its contact piece may then be taken out through the opening 15. In this way, the parts may be repaired or replaced as desiredwithout much diffiliG culty and Without injuring'the body of the socket.

It will thus be seen that there is provided a device in which the several objects of this invention are achieved and which .is well adapted to meet the conditions ofpractical use.

As various possible embodiments might be made of the above invention and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. An electric lamp socket comprising a body portion having a recess, a screw contact shell fitted into said recess, a contact member carried on a movable disc beneath the shell, and a spring housed in said recess beneath said disc adapted to urge said disc and member toward the shell, said disc normally spacing the contact member from said shell and serving to engage said shell for retaining said member within the recess below said shell.

2. An electric lamp socket comprising an insulated body portion having a recess, a contact making part fixedly fitted in an open end of the recess, and a spring pressed contact-making part carried on a movable insulated disc beneath the first mentioned part, said disc slidingly fitted in said recess to hold said contact making parts in spaced relation, said first mentioned part adapted to engage said disc for retaining the other part within the recess.

In testimony whereof I affix my signature.

REUBEN ECKSTEIN.

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