US1663654A - Lighting fixture - Google Patents

Description

March 27, 1928. 1,663,654

E. F. GUTH LIGHTING FIXTURE Filed July 15, 1925 INVENTOR vwomLam 1F ATTORNEY Patented Mar. 27, I928.

LIGHTING FIXTURE.

Application filed July 13, 1925. Serial No. 43,092.

My invention relates to that class of units which are enclosed, so as to eliminate the collection of dust, dirt, bugs, etc., on the bottom of the globe, and yet to produce an eflicient unit which will be highly brilliant, without any glare. I

My invention consists of certain details of construction hereinafter set forth and illustrated in the I accompanying drawings, in which V Fig. 1 is a side elevation of my improved lighting fixture having aportion of the reflecting surface of the canopy broken away to show the interior construction;

Fig. 2 is a detail view of the mounting for holding the globe in position.

Similar reference numerals refer to similar parts throughout the entire description.

As shown in the drawings, my improved lighting fixture unit may be suspended from a chain 1, and attached to the ceiling canopy 2, in the usual manner. At the lower end of the chain 1 is mounted a holder 3 ofstandard construction. To this holder, I secure an enclosed globe 4. This globe is constructed, as clearly seen in the drawings, of two parallel ribs 5 and 6, which are con nected together by downwardly and inwardly tapering side walls 7. The bottom is closed by convex member 8' and the top is formed by an inwardly extended truncated conoidal portion 9. The reflector canopy 10 is provided with a substantially horizontal reflecting surface 11, in the central portion of which an opening 12 is formed, which permits the upper portion of the truncated conoidal portion 9 of the globe'to project through, to permit the light rays to illuminate the ceiling, though it may be located just below the reflector.

The reflector is held in position by means of three straps 13 which are properly located equidistant from each other, and are secured to the holder 3, so as to suspend the canopy 10 therefrom, without letting its weight rest upon the glass globe.

The globe 4 which is preferably formed of translucent glass does not interfere with the efliciency of the unit as a light giver but does entirely minimize the glare which reflector, thus utilizing a large number of these rays which would otherwise be lost on the ceiling. 'At the same time, by permitting a small portion of the truncated conoidal part of the globe to extend through the canopy, it will, as indicated by the lines in the drawing, throw suflicient direct light above the canopy reflector to efle'ctually' re-' move all sense of gloomor darkness above the unit, and yet does not sacrifice enoughof the reflecting surface to materially interfere with the efliciency of the unit as a whole. 1

Having thus described my invention what I claim and desire to secure by Letters Patent of the United States is:

1. A lighting fixture, comprising a hanger, an enclosed cylindrical globe having parallel ribs at the top and bottom, and downwardly and inwardly tapering side walls, and an inwardly extending truncated conoidal portion which extends from the upper rib to stantially horizontal reflecting surface which reflectsthe light rays to the working plane, there being a central opening in said reflector through which said-conoidal portion extends, to illuminate the ceiling.

2. A lighting fixture, comprising a hanger, an enclosed cylindrical globe having parallel ribs at the top and bottom,and downwardly and inwardly tapering side walls, and an inwardly extending truncated conoidal portion which extends from the upper rib to the hanger, a canopy reflector, having a subthe hanger, a canopy reflector, having a substantially horizontal reflecting surface which reflects the light rays to the working plane, I

there being a central opening in said reflector to permit the light rays from the truncated conoiclal portion to illuminate the ceiling.

5 3. The combination With a canopy, having a substantially horizontal reflecting surface of an enclosed globe, the sides of which taper downwardly, the upper part of which comprises an inwardly extending truncated conoidal portion there being an opening in 10 the central part of said canopy through which the light rays from the conoidal portion may illuminate the ceiling.

EDWIN F. GUTH.

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