US1794687A - Electric-light fixture - Google Patents

Description

flarch 3 HENRY ET AL ELECTRIC LIGHT FIXTURE Filed 001.. v 22, 1927 lnvenTors. Gerald Henry KenneTh A Suwin Patented El, 1931 "TUNE-lifted lates gaissr mmwm GERALD J. HENRY, or sosroiv, Ann KENNETH A. sawin, or winrnruor; Ianssn- 'cnusnrrs, AssIenon-s rotwnnnnnn nnrLEcroaooi/ riiniz, or-Bosro r, MAS$A cnusnrrs, A. COB-PQEATIQN or irassncnusnrrs I ELECTRIC-LIGHT rrxcrunn f Application filed. October 22, 1927. Serial No. 227,920.

This invention relates to electric light fixtures and particularly those used for. outdoor illumination, and it has for its object to provide certain improvements in electric light fixtures by which the structure or the fixture is simplified andthe assembly of the parts and wiring of the fixture is facilitated.

In order to give an understanding of the invention we have illustrated in the drawings a selected embodiment thereof which will now be described after which the novel features section of the socket; p

F 1g. 1 1s a section on the l1ne4 4;. Flg. 5;

will be pointed out in the appended claims.

Fig. 1 is a view partly in section illustratlighting; Fig. 2 is a fragmentary perspective view of the upper end of the neck of the reflector; Fig. 8 is a bottom plan view of the upper Fig. 5 is a section on the line 5-5, Fig.4.

The electric light fixture herein shown is of that type which comprises a cap or canopy member, a socket member secured to the canopy member and a reflector member also secured to the cap or canopy member.

Tnthe drawings 1 indicates the'cap member, 2 the socket member which supports the electric light bulb 3 and l is the reflector member.

The cap or cano-py membe r 1 is preferably or cast metal audit is provided with a boss 5. intowhich is secured a supporting pipe 6 by which the structure is supported and which also serves as a conduit for receiving the wires 7. This boss 5 may be arranged either vertically or horizontally as desired and in the construction shown it is arranged horizontally so that the supporting pipe will extend in a horizontal direction.

The socket member 2 is of the type comprising the upper section 8 and the lower sleeve section 9. The upper section 8 carries the lamp terminals 10, 11, the latter being in the form of the usual screw-threaded neck into which the lamp 3 is screwed and the former being a spring terminal which the end contact of the bulb 3 engages. The terminals 10, 11 have the usual binding screws 12, 13 to which the wires"? are. attached in usual II1&I1-' ner. 1

The sleeve member 9 is. loosely screw threaded to the exterior of the screw-threaded terminal 11 ends for the purpose of covering the contact members. i

Thesocket member 2 is constructedsothat it can be readily a tached to or detached from the cap memberl The cap member l is pr vided with two bosses 14 a 'ainst which the socket member rests, each boss carrying an attaching screw 15. Thesocket member-is provided with two openingslti of a size to receive the heads 17 of the attaching screws and each opening 16 has communicating .1

therewitha slot 18 of a sizeto receive the shanks of the screws. 7 7 In assembling thesocket member-Withthe cap member the heads 17 of the scrws are entered through the openings 16 and then the socket member is givena partial turn to bring the shanks of the screws into the slots 18. The socket member isshown as counterbored at 19 so that the heads of the screwsare below the lower surface of the member 18. After 7.

the socket member 8 has been placed inposition he screws 15 may be tightened slightly if desired to frictionally hold the socket memher in position.

The cap member 1 is provided with a de gending skirt portion or flange 20 which carries the means for supporting the reflector 4. This reflector is provided with the neck portion 21, the upper edge of which is for-med with the bead or rib 22. The skirt 20 has proenter the slots. l When the upper end of the neck is against the under face of the cap with the head 22 above the projections 23 then the reflector is given a partial turning movement to disalign the slots 2-1 and the projections 23.

The projections 23 are then situated beneath the rib 22 as shown in Fig. 5 so that the reflector is supported bythe lugs.

In order to lock the reflector in position we have shown a set screw which is carried by the flange 20 of th'ecap 1 and which is adapted to engage a seat member 25 that is carried by the neck 21 of the refl ctor. The reflector may conveniently be made of sheet metal which is provided interiorly with the proper reflecting surface and the seat member is shown as a button-like element which is rigidly secured to the upper end of the neck 21 in some suitable way. Oneway is to make his member in the form of arivet which extends through the wall of the neck and is headed over on the inside thereof as shown recess on its interior face to receive the seat member as the parts are being assembled. V In testimony whereof; wehave signed our 7 names to this specification.

' GERALD J. HENRY.

I KENNETH A. SAWIN.

given a turning movement to bring it into the full line position Fig. l which will bring the seat 25 into alignment with the set screw 3% and will disalign the slots 24L from the projections 23. When the set screw 34L is tightened against the seat member 25 the reflector will be firmly locked in position.

If it is desired to remove the reflector for any purpose such for instance as to repair the wiring or otherwise this can be done by simply loosening the set screw 3& and then turning the reflector into the dotted line position Fig. 4 thereby to bring the slots 24 into alignment with the projections 23 after which the reflector is free to be withdrawn from the cap member.

We claim:

In an electric light fixture, the combination with a cap member having a depending annular flange provided with inwardly-extending projections, of a socket member secured to said cap member, a reflector member having a neck portion provided with a head or rib,

at its upper end, said head or rib being provided with slots having the same relative arrangement as the projections, whereby the reflector member may be secured to the cap member by entering the end of the neck portion into the annular flange with the projections occupying the slots and then turning the reflector to disalign the projections and slots, a seat membercarried by the neck and extending outwardly therefrom and a locking screw carried by the flange and adapted to engage the seat member and thereby lock the reflector from turning movement, said flange having a

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