US1206561A - Lighting-fixture. - Google Patents

Description

W. LUML EY. LIGHTING FIXTURE. APPLICATION FILED s'umzs. 1913.

1,206,561. Patented Nov. 28,1916.

2 SHEETS-SHEET I.

Witnesses: Q 1 Inventor:

' His DTttorneg.

W. LUMLEY.

LIGHTING FIXTURE.

APPLICATION FILED SEPT. 26. 1913.

1 ,2Q"6,56 1 Patented Nov. 28, 1916.

2 SHEETS$HEET 2.

.kmsmm Witnesses: Inventor:

Wlhfld Lumley UNITED STATES PATENT UFFICE.

WILFRID LUMLEY, 0F CONNEAUT, OHIO, ASSIGNOR TO GENERAL ELECTRIC COMPANY, I

A CORPORATION OF NEW YORK.

LIGHTING-FIXTURE.

ingly hereinafter described such a. structure together with various accessory features and modifications.

Among the advantages which may be obtained through my invention are the mounting of electric lamps of large candle power in such a manner that the portion of the fixture which receives the base of the lamp.

and is therefore most liable to be heated by conduction from the lamp, is ventilated so that overheating is impossible and the protection of all the parts from the weather when the fixture is mounted out of doors. As will also be apparent from the structure hereinafter described, the fixture and its parts are simple and inexpensive of construction, present a. good appearance, and are rugged and durable. Various other advantages obtainable through the invention will hereinafter appear. It will of course be apparent to those skilled in the art that the invention may be embodied, carried out and applied in forms diflerent than those shown and described, as indicated by the scope of my claims.

In the accompanying drawing, Figure 1 is aperspective view of a fixture constructed in accordance with my invention and attached to abracket adapted to be secured to a wall, a post, or the like; Fig. 2 is a view of such a fixture with certain modifications as regards the character and mounting of the reflector and the mounting and support of the fixture itself, the modification last mentioned being such as to adapt the fixture for mounting close to a ceiling; Fig. 3 is a perspective view of one of the parts shown in Fig. 1 as it appears when separated from the rest after the fixture has been detached from the bracket arm; Fig. lis a plan view Specification of Letters Patent.

Patented N ov. 28, 1916. Serial No. 751,982.

of certain interior parts as seen after the detachment and removal of the bracket and the part illustrated in Fig. 3; Fig. 5 shows the fixture with a. form of shade illustrated in Fig. 2 but with a suspension member attached to the top such as may be employed when it is desired to suspend the fixture by a chain, and in this figure the upper part shown in Fig. 3 appears in mid-section and the lower portion is shown as in section along the broken line 5-5 in Fig. 4; Fig. 6 shows the lamp socket and associated electrical parts as removed from the rest of the fixture; Fig. 7shows a. modified form of socket adapted to take a small lamp and illustrates the manner in which it is to be mounted in place of the larger one.

Referring first to Figs. 1, 2, 3, at. and 5, it will be seen that the fixture comprises .a main body portion 1 and various other parts attached to or associated with it. In Fig. 1, it will be seen that the body 1 holds a shade 2 of white porcelain or any other suitable material, and that at the top of the fixture there is a. fitting 3 threaded or otherwise secured on one end of a tubular bracket arm *1: attached to a suitable bracket 5 adapted to be screwed or bolted to a wall or post or any other object by screws extending through holes 6. i

In Fig. 2 the parts shown with the body portion 1 comprise a metal reflector 8 and a holder 9 which fits about the upper portion of the body and is secured thereto by set screws 10 which engage in holes in the body port-ion 1 or beneath a flange or a part attached thereto. In Fig. 5 it will be seen that a fitting 4 is secured above the body 1, this fitting being provided with a ring P by means of which the fixture may be suspended by a chain or in any other desired manner. Referring, now, more particularly to Figs. 3, 4, and 5, it will be seen that the body 1 carries a socket 11 (shown as of the ordinary Edison screw type) for engaging with the base of a lamp. This socket, it will be seen, is mounted in a cavity 12 at the lower side of the body 1. type shown in Fig. 5 has an upwardly projecting flange 13 which fits about the lower end of the body 1. The portion of the reflector within this flange has notches 14, one of which is shown at the right of the figure, which fit about the shanks of screws 15 en- The reflector 8 of the gaging with suitable metallic parts carried by the body, and the shade is in this manner securely mounted beneath the reflector and at the same time easily removable. This 5 shade may be of any desired construction and of any suitable material, such, for example. as enameled sheet metal.

As will be seenfrom Figs. 4 and 5, the electrical connections to the socket 11 are made at the upper side of the body 1 and are covered by a part 16 mounted above it, which, as shown, is separable from the body 1. As shown in Figs. 3 and 5, this cover is a dome shaped "flat piece havingits lower edge slightly under-cut so that when it rests on the upper end of the part 1 it may extend down below the upper end of the part 1 or ring and so keep out the weather. As shown in Figs. 1 and 5, the part 4 or 4 by which the fixture is supported is fastened to two brackets 17 secured to the part 1 extending up through holes 18 in the cover 16 and having in their upper ends threaded holes for screws 19 which pass through holes 20 in the sidesof the tubular lower end of the part 4 or 4. In the boss 22 at the upper side of the part 16 are holes 23 through which the electric wires may be introduced into the fixture, as shown in Fig. 5, although such wires may also enter the fixture in other ways as will hereafter appear. It will be seen that when the part 4 or 4 is in place and the other parts arranged as shown in Figs. 1 and 2, the upper side of the fixture is completely water-proof. It will be seen from Figs. 4 and 5 that in the cylindrical wall of the body which surrounds the cavity 12 in which the socket 11 is mounted there are a number of vertical passages 24 having the form of cylindrical holes, these passages extending from the lower side or end of the body clear up to its upper side or end. It will further be seen that the upper end of the body 1 is enlarged by a flange-like outward extension 25, and that in the flange 25 are a number of vertical holes or passages 26 which extend from its lower side to the upper side of the body. It will readily be seen that when the lamp is in place in the socket the heat from it will cause the air beneath the reflector to move upward from the passages 24 into the space between the upper side of the body 1 and the lower side of the dome-like cover 16,'whence it will pass downward through the upper passages 26 and escape, this exit from the space beneath the dome 16 being facilitated by the cooling action resulting from the exposed surface of the dome and of the flange 25.

Referring, now, to the direct electrical connections of the socket. it will be seen from Figs. 4, 5 and (3 that the socket comprises a threaded shell 30 shaped like a F screw cap with a wide transverse cut in its upper end. It will be seen that the upper end of this shell fits against the bottom of .the cavity 12, a projecting portion 31 in the bottom of the cavity lying in the cut in the upper end of the shell and-by its engagement with it in this manner preventing it from turning. This shell is secured inplace by screws 32 which extend up through holes in the bottom of the shell and in the bottom of the cavity and engage with internally threaded holes in a metallic part above. The center contact of the shell is formed by a part 33 which fits in a shallow groove in the projecting portion 31 in the bottom-of the cavity and is secured by a screw 34 in very much the same manner as the shell itself. This center contact has a spring-like form so as to yield somewhat when the lamp is screwed into the socket.

The electrical connections from the socket to the wires are made through the screws 32 and 34. As will be seen from Fig. 4, there is in the upper side of the body 1 a crescent shaped cavity 35. At the bottom of this cavity is a correspondingly shaped metal piece 36 (Figs. 4 and 5) .whose ends receive the screws 32 and at whose middle portion is a lug 37 to which one wire may be secured by a screw 38. In the other side of the part 1 is also another cavity 39 in which is a part 40 (see Fig. 6) which receives and engages the screw 34 and has an upwardly extending lug 41 to which the other wire may be secured by a screw 42. Thus the connections of the wires are made and the portions of them from which the insulation is removed for this purpose are located at points separated by the wall 43 between the cavities 3'5 and 39.

The socket shown-in Figs. 5 and G is a large one adapted to take the large base commonly used on lamps of 200 watts or more. In Fig. 7, however, is shown a small socket of the size adapted for lamps of .comparatively low wattages in .the cavity 12 in place of the socket 11. This socket comprises a base portion 50 having a shallow transverse groove 51 in its upper side so that it is adapted to fit the bottom of the cavity 12 and having its lower side formed very much like the bottom of the cavity 12 itself. except that it has a central cylindrical projection 52 with a cavity 53 therein. The threaded shell 54 has an upwardly extending flange 55 at its upper end. In the cavity 53 is arranged a center contact 56 of ordinary form. The screws 32 and 34 which secure the socket and the center contact pass up through holes in the porcelain part 50 and on up through the holes in the bottom of the cavity 12 and engage the parts 36 and 40 just as in the case of the other form of socket.

It will be seen that in the midst of the passages 24 are two diametrically opposite vertical holes (only one of which appears in Fig. 5). The lower portions of these holes are square in cross-section and contain parts consisting, as shown, of short strips of metal 60 with their ends bent at right angles and having threaded holes therein. The upper ends of these strips receive and engage screws 61 which pass through lugs at the lower ends of the parts 17 and so serve at once to secure the parts 60 and 17 in place. It will be observed that owing to the shape of the holes 60 the parts just described cannot turn in them and that the lugs at the lower ends of the parts 17' lie in grooves in the upper side of the part 1 and so are prevented from turning. It will also be seen that the lower ends of the parts 60 receive and engage the screws 15 previously mentioned by which the reflector 8 is held in place. I

In the arrangement shown in Fig. 1, the wires 21 enter the body through two of the holes or'passages 26. g

As shown in the drawings, the various portions of the body 1 may be made integral with one another and, to secure the necessary insulation of the various electrical parts, the body may conveniently be made wholly of insulating material such as'porcelain or bisque. As shown, the cover 16 is also made of sin ilar material. These parts can be made in a mold of simple construction in a manner Well understood. by those skilled in the art. 'Thevarious metallic Darts are all of simple forms and can be easily and cheaply made in various Well known ways. The parts are themselves simple and can be readily and quickly assembled and taken apart.

What I claim as new and desire to secure by Letters Patent of the United States, is 1. An electric lighting fixture comprising an insulating block having therein means for supporting an electric lamp and electrical connections therefor, a cover lng over the top of the Said block and sup-- ported thereby, a reflector orshade holding means, and means forfsupporting the latter independently of the said block.

'2. An electric lighting fixture.comprising an insulating block having therein means;

for supporting an electric lamp andelectrical connectionstherefor, aqreflector ,or shade holding means below said block, and

means extending through the said blockfor supporting the said reflector or shade hold ing means independently thereof; v

3. An electric lighting fixture comprising an insulating block having means therein for supporting an electric lamp and electrical connections therefor, a cover for the said block, a. reflector or shade holding means located below the said block and engaging therewith and means extending through the said block for supporting the said reflector or shade holding means independently of the said block and the said cover.

4. An electric lighting fixture comprising an insulating block having an upper peripheral flange and having means for supporting an electric lamp therein and electrical connections therefor, a reflector or shade holding means below said block, ventilating passages extending through said block and through the said reflector or shade holding means, a dome shaped cover for the said block, and passages extending through the aforesaid flange and connecting the space between the said cover and the said block with the outer air.

5. In an electric light fixture, the combination of a block of insulating material having cavities therein for the reception of an incandescent lamp and its electrical connections, metallic parts extending through the said block for supporting the same and for supporting a shade or reflector below the same, and an insulating cover supported by the saidblock and extending beyond the periphery thereof.

6. An electric lighting fixture comprising an insulating block having therein means for supporting an electric lamp and electrical connections therefor, a separable cover extending over the top of the said block and supported thereby, a reflector or shade holding means, and means for supporting the latter independently of the said block.

.7. An electric lighting fixture comprising an insulating block having means therein for supporting an electric lamp and electrical connections therefor, a separable cover for. the said block, a reflector or shade holding means located below the said block and engaging therewith and [means extending through the saidblock for supporting the said reflector or shade holding means independentlyof the said block and the said louver. -w1tness whereof,'.I have hereunto set 22nd day of September 1913. WILFRID LUMLEY. ,Witnesses: 1

W. S. ABBOTT, f W. E. Masmas my: hand this Copies of this patent may be obtained for five cents each, by addressing the commissioner of Patents,

Washington, D. 0," v

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