US1972637A

US1972637A - Lighting fixture

Info

Publication number: US1972637A
Application number: US568908A
Authority: US
Inventors: Wilson George
Original assignee: PORCELIER Manufacturing Co
Current assignee: PORCELIER Manufacturing Co
Priority date: 1931-10-15
Filing date: 1931-10-15
Publication date: 1934-09-04
Anticipated expiration: 1951-09-04

Description

Sept. 4, 1934. G. WILSON LIGHTING FIXTURE Filed Oct. 15, 1951 2 Sheets-Sheet INVENTOR Sept. 4, 1934. V G WILSON 1,972,637

I LIGHTING FIXTURE Filed 001:. 15, 1931 2.Sheets-Sheet 2 ifa awumw INVENTOR Patented Sept. 4, 1934 UNITED STATES LIGHTING FIXTURE George Wilson, Greensburg, Pa., assignor to Porcelier Manufacturing Company, Greensburg, Pa., a corporation of Pennsylvania Application October 8 Claims.

This invention is for an improvement in lighting fixtures, and more particularly, for lighting fixtures used for ceiling lights and wall lights and made of porcelain or other frangible mate- I. rial.

Lighting fixtures of the type to which the present invention relates, generally comprise a base which encloses an electric socket and switch, if aswitch is provided, and a shade or .10 shield for the purpose of enclosing the electric '20 provided a fixture of unique appearance having the shield or shade firmly retained in place but so arranged that it may be readily removed and wherein, in the case of a porcelainor like fixture, all metal parts are completely enclosed. The invention is adapted for either a side wall bracket having a single light bulb or a ceiling fixture having a cluster of two or more bulbs. The invention may be readily understood by reference to the accompanying drawings, in

' Which+ Figure 1 is a side elevation of a fixture em-. bodying my invention; v

Figure 2 is a vertical cross section of the fix-. ture with the shield in place;

Figure 3 is a cross section along the line III- III of Figure 2;

Figure 4 is a section through Figure 2, approximately along the line IV--IV, looking, in the direction of the arrows;

Figure 5 is a View of the removable shield, partly in perspective;

Figure 6 is a viewof thebase of the fixture, partly in cross section along the line IVIV of Figure 2, looking in the opposite direction of the arrows, and

, 1931, Serial No. 568,908 (Cl. 240-73) the base member has a back wall 9 which is concave in transverse section, and surrounding the top and sides of the back wall portion is a rim 10. Projecting rearwardly from this rim is a flange 11 extending entirely around the back of the fixture and curving to contact with the wall against which the fixture is placed. The baseof the pull socket 6 is fastened to a square metalpedestal 12 which projects into a square recess 13 in the bottom part of the housing 2 and is fastened in position by a hollow screw ld'through which passes a pull chain 15 which in turn is secured to-a pendant 16 by means of a clip 17. By a pull on pendant 16, the electric contact is made or interrupted inpull socket 6. The electric current is conducted to the fixture by means of wires 18 and 19. For appearance sake and for insulating purposes, the screw 14 passes through. a porcelain button 20 which is held in position by the enlarged head of screw 14. The fixture is fastened in position by a conventional bolt'21 which passes through a hole 22 in the back of the upright, and is secured on the face of the fixture by the cap nut 23 and at the back by a nut 24 which is adapted to thread on to a crow foot or conduit terminal in the normal manner.

. The removable shield 25 (see particularly Figure 5) is preferably made of translucent or opal glass in the form of approximately onequarter section of an oblate spheroid, one line of section being along its major axes and the other line of section being along its minor axes and at greater than a rightangle to it so as to give to the open end 26 of the shield 25 a slight downward slope when in position on the fixture as shown in Figure 1. The open end 26 of the shield 25 is shaped so as to closely engage with a recess onthe outer edge of ledge 3 and form ,a close joint therewith.

Arranged along. the sides of the shield and formed integral therewith are laterally turned,

inwardly projecting, .longitudinal wedges 27 f adapted to progressively tighten the shield against the upright of the fixture as the shield is pushedinto position. The wedges 2? are adapted to slide beneath the springs or resilient fingers 28 provided on clips or guides 29 secured to the portion 9 of the fixture. These spring clips comprise a metal plate 30 curved to conform to the concave surface of the base against which they'are held and they have outwardly turned flanges 31 from. which the fingers 28 are integrally formed. The clips are held in place by bolts 32 passing through them and through.

protruding housing portion on the has a portion 41 of reduced thickness manufactured and assembled.

by holding it against the baseand sliding it down, the flanges 27 engaging under the spring.

28 of the clips 29. The spring fingers yield as'the flanges or wedges 27 slide under them exerting a frictional pressure which preventsthe shield from sliding too ma Orfrom, jarring off in the caseof a ceiling fixture. The spring fingers 28 also hold the edge face 34 of the shield against the rim portion of the base so that the shield will set close to the basejto exclude dust and dirt and make a neat appearancer In adapting the construction to a ceiling light in whichthere is acluster of two or more bulbs, the same general arrangement is followed, the base serving, however, to support two or more lamp sockets instead of a single socket as previously described. Such an arrangement is shown in the modification in Figure '7 in which 35 designates the base member having a flange portion 36 therearoundcorresponding to the flange 10 of the construction previously described. At the center of the base is an outwardly protruding housing portion 37 having a face portion 38 for each lamp in the cluster, each face portion 38 having an opening 39 therethrough in which ismounted a conventional type of lampsocket 40, but in this type of fixture it is usually unnecessary to employ a switch socket. The body extending ouinvardly therefrom from each of the vertical faces 38. In the constructions shown in Figure 7, there are two such portions positioned 180 apart, but this number may be varied depending upon thenumber of lights to be used and upon the physical limitations of the space to be allowed. Each of the portions 41 is shaped the same as the portion 10 as shown in Figure 6, and is provided with clips for holding the I shade or shield 42.

From the foregoing description it will be seen that the fixture is of neat appearance. It can be easily cleaned, the interior is enclosed so as not to collect dirt, and when the base is made of porcelain or other frangible material and the shield is made of glass, there are no exposed metal parts either to mar the appearance or to make it dangerous in the event of a shortcircuited or groundediwire.

The construction of the spring" clips is such as to hold the shield tightly against the 00- operating surfaces of the base so as to prevent the shield from rattling or accidentally sliding off when vibrated. The fixture can be cheaply By making the portion 9 concave, the vertical center of the lamp socket can beset back closer to the wall than'if this concavity were not provided. Part of the conventional lamp bulb is received in the space there provided and both 2: and modifications may be made therein without departing from the spirit of my invention and that I do not confine myself to the particular shape of the various parts, this being merely a matter of design, nor to the particular materials mentioned, although as previously stated, the invention is particularly applicable to porcelain or other frangible material.

I claim:

L A lighting fixture comprising in combination a body having a base portion and a projectportion, the projecting portion thereof forming a housing, the top of the housing forming a ledge, an electric socket in said housing and projecting through. said ledge, a removable shade, and concealed spring means in the base portion for fastening the shade to the base portion and to hold it against the ledge.

2. A lighting fixture comprising in combination a body having a base portion and a projecting portion, the projecting portion thereof forming a housing, the top of the housing forming aledge, an electric socket in said housing and projecting through said ledge, a shade having internal projections thereon, and means mounted on the base projecting into the shade for retaining the shade in position 'on the ledge.

3. A lighting fixture comprising in combination a body having a base portion and a projecting portion, theprojecting portion'thereof forminga -hou'sing,-the-top of the housing forming a ledge, an electric socket in said housing and projecting through said ledge, a shade having internal projections thereon, and spring means fastened to the base portion and engaging with of an electric lamp, a shade and concealed means fastened to the base portion for slidably engaging the shade on sliding movement of the shade'relative to the base.

5. In a lighting fixture, the combination with a base, and a shade slidable thereon, of a guide on one of said members, a flange on the other for movement in said guide, said flange having a surface inclined to the cooperating'surface of said guide for wedging engagement therewith, and a spring on said guide for engaging said flange. i e I v 6. Ina lighting fixture, a shade member having side portions with inwardlyturned flanges thereon and which are tapered to form wedges, and a fixture member having clip elements thereon for engaging said flanges, said clip ele-. merits being concealed by the shade when the flanges are engaged by the clip elements.

7- A lighting fixture" of the wall bracket type comprising a body having an enclosed projecting portion adapted to rcceiveand house a lamp socket and having a horizontal portion with an its i io

end engaging said horizontal portion and hav- 1 15 ing side portions which engage the base portion, and means for retaining the base on the shade including internal flanges on the shade and clips onthe'base which overhang and engage the flanges, said means permitting the a shade on the base portion having its bottom end engaging said horizontal portion and having side portions which engage the base portion, and cooperating means on the base and shade inside the shade for releasably holding the shade in said position on'the base.

GEORGE WILSON.