US1496245A - Combined electric-light socket and globe or shade holder - Google Patents

Description

June 3 1924., 1,496,245

N. w. NUT-r COMBINED ELECTRIC LIGHT SOCKET AND GLOBE OR SHADE HOLDER Filed Sept. l, 1921 .1TToR.vEY.

Patented ,fune 3, 1324.

NORMAN' W. NUTT, 0F TRENTON, NEW JERSEY.

COMBINED ELECTRIC-LIGHT SOCKET AND GLO'BEOR SHADE HOLD Application led. September 1, 1921. Serial No. `497,519.

To all whom t may concern:

Be it known that I, NORMAN W. NUTT, a citizen of the United States, residing at Trenton, in the county of Mercer and State of New Jersey, have invented certain new and useful Improvements in Combined Electric-Light Socket and Globe or Shade Holders, of which thcfollowing is a specification.

This' invention appertains to certain irnprovements in combined electric light socket and globe or shade holders, and has for its principal object to provide for an extremely simplified construction and arrangement of parts thereof, and one which is compact,

safe, durable, andeflicient in all of its mechanical and electrical features of such construction and arrangement.

Another object of the invention is to provide for a socket holder of the class men-y tioned, and one wherein all of the electrical contacts or current conducting parts thereof are thoroughly insulated or otherwise enclosed against all possible chance of the accidental short circuiting of the circuit"to which the socket may be connected, and whereby the chance for the injury of a person making use of the same is reduced to a minimum.

A further object of the invention is to provide the holder proper with a removable lamp socket, which, when properly positioned within the same is frictionally held in Such position against accidental displacement therefrom under ordinary conditions of'use, and especially during the removal rrllid replacement of lamps, plugs, and the A still further and equally important 'ob-A dling of the same, and who very often insertA their fingers into the socket and are severely shocked or injured in so doing. r

With the foregoing and other objectsr in view, the invention resides in the certain novel and useful constructions and arrangement of parts -as will be hereinafter more fully described, set forth in the 'appended "globe or shade in position.

claim, and illustrated in the accompanying drawings, in which Figure 1 is a vertical section taken on the line 1-1 of Figurev 3, and showing a preferred embodiment of the holder with the removable socket member positioned within the same,

Figure 2 is an elevation, partly in section, of the socket per se,

Figure 3 is a side elevation of the complete device or holder.

Referring to the drawing, wherein similar characters of reference designate corresponding parts in the several views thereof, the first embodiment of the invention as shown in Figures 1 to 3, inclusive, comprises a husk or shell of sheet metal or the like, indicated generally as at 10, which is closed at its upper end except for a circular opening 11 formed centrally of the end wall thereof for the insertion therethrough of the usual conductors or leads of a lighting circuit (not shown) and for the attaching of the same to a fixture end or the like (not shown). The body portion of the husk or shell 10 is slightly tapered throughout its maj or length upwardly from its lower end portion which is flared as at 12 and terminates in a flanged portion 13 forming an annulus for the seating -therein of a globe or shade (not shown), suitable screws 14 being threaded radially inward of a series of equi-distantly spaced bushings 15 secured in the flange or annulus 13 for the securing and supporting of the rfhe lower ed e of the fianged portion 13 is preferably bea ed or rolled as at 16. whereby to strengthen this portion of the husk or shell in particular, as well as to lend a sufficient degree of rigidity to the latter as a whole.

Removably secured within the husk or shell 10, is a lamp socket, which is formed of a cap member 17, of an insulated material such as porcelain' or the like, and this portion 17 is positioned Within the upper closed end of the husk or shell and has its outer surface shaped to conform to the curvature of the wall thereof, and is secured in position by a means suitable for the purpose, such as screws or the like (not shown), an opening 18 being formed centrally of the cap 17 arranged in registry with the opening 11 of the husk or shell 10 for the passage therethrough of the conductors or leads of the lighting circuit, as aforesaid. The socket member proper comprises a body of an insulating material, which is of a length to project upwardly of the husk or shell 10 and has its lower edge disposed ush in the plane of the lower edge of the flanged portion 13 of the latter, the upper portion 19 of the socket member being tapered correspondingly with respect to the opposed wall of the body of the husk or shell 10, above the flanged portion 12 thereof, and is threaded into engagement therewith, as at 20, while the lower end portion 2l of the socket member is reduced exteriorly to allow a sufficient space for the insertion within the annulus 13 of the husk or shell of the globe or shade as hereinbefore explained.` The lower end portion 21 of thesocket member is provided with the usual bore for the reception therein of a metal socket or screw shell 22 for the threading into operative position of the usual and complementally threaded base of an electric lamp (not shown).

The cap member 17, ofthe lamp receptacle or socket, is formed to provide a concaved recess 23 centrally of the inner face thereof and concentrically with respect to the conductor inlet openingsv 11 and 18, whereby to admit of the desired twisting or knotting of the conductors of the lighting circuit inserted therein, so as to relieve the same of all strain which may be and usually are brought to bear thereon, and which would otherwise result in loose connections, the short circuiting of the lighting system, or the accidental breaking of the said circuits. The conductor ends inserted into the holder, are to be electrically connected, one to an annular contact member 24', which is mounted on the inner fiat face of the cap member 17 and concentrically thereof and is secured in position by means of an inwardly disposed portion 25, which is angularly bent to project within a recess 26, formed in the surface ofthe concaved recess 23, and to engage over a screw,

27, the latter constituting a binding post for the bared end of the conductor and acting to clamp the same against the portion 25 for the purpose, and the other of the conductors to a centrally disposed contact member 28 which is disposed partially within a recess 29, also formed in the wall of the concaved recess 23, .and is secured in position by means of a binding screw 30, the latter contact member 28 being preferably in the form of a spring strip or arm to frictionally enage with a contact arranged centrally of t e inner end face of the socket member 19, while the annular contact member 24 is arranged tobe frictionally contacting by a similarly formed and arranged contact 31, also carried on the inner end face of the socket member 19, when the latter is screwed into place within the `husk or shell 10. This formation and arrangement of the several contacts on the opposed ends of the cap member 17 and the socket portion 19 assures of the establishing of effective electrical connections between the parts of the holder, when the same are assembled, and the friction created between the opposed surfaces of the said contacts precludes of the accidental unscrewing of the socket portion from its operative position.

It is well understood, that, while the preferred embodiment of the device has been described and illustrated herein in specic terms and details of construction and arrangement of the parts thereof, various changes in and modifications of the same may be resorted to wit-hout departing from thespirit of the invention, or the scope of the rlaim appended hereto. i

Having thus fully described the invention, what is claimed, is

A light receptacle comprising a globe or shade holder casing having one end open and its other end closed and having an opening formed in the closed end thereof for the passage of the conductors or leads of a lighting circuit, said casing provided intermediate its ends with screw threads, a cap member of insulation material secured within said casing at the closed end thereof and formed with an opening registering with the opening at the closed end of the casing, said cap member having formed in its inner face concentrically with respect to the opening for tht` passage of the conductors a concave recess of substantial size to allow for the knotting of the inserted end terminal portions lof the said conductors therein to relieve the connected end termini of the conductors from any and all strains tending to loosen or disconnect them, contacts carried by and extended from the inner face of said cap member and adapted to have connected thereto the termini of the said conductors, a socket member of insulation material for inlsert-ion through the open end of said casing and provided intermediate its ends with a peripherally threaded portion engaging with the threaded portion of the casing whereby said socket member is detachably secured in position with respect to the cap member, and contacts carried on the inner end of said socket member and frictionally engaging with the contacts of the cap member when the socket member is secured in position in the casing with respect to the cap member.

, In testimony whereof, I aihx my signature hereto.

NORMAN NUTT.

Images