US1477366A - Lighting fixture - Google Patents

Description

B. F. KLEIN De@ n 1923, l 11,477,366

LIGHTING F'IXTURE Filed Junev 29. 1921 Patented Dec, lll, ll923,

@NNE-till?? lasciate rarest perrita BENJAMIN F. KLEIN, F CLEVELAND, OHIO.

LIGETING Application led June 29,

To all w hom it may concern.:

Be it known that l, BENJAMIN F. KLnrN, la citizen of the United States, resid'entvof Cleveland, county of Cuyahoga, and State of Ohio, have invented new and useful Im# provements in Lighting Fixtures, of which the following is a specification, the principle of the invention being herein explained and the best mode in which have contemplated applying that principle, so asto distinguish it from other inventions.

MyA invention" relates to lighting fixtures. li)articularly, the invention relates to appa! ratus of this character utilized for indirect lighting. rl`he objectv of the invention is to design a fixture of this character which shall be Very efficient as regards `the effective percentage of the total lumensreceived; which can be utilized to reflect light in any desired direction; which shall be artistic; which shall be economically manufactured and easily assembled; and. which cannot be easily put out of adustment so as vto impair its light efficiency or its appearance.

rl'he annexed drawing and the following description set forth in detail certain means embodying my invention, the disclosed means, however, constituting but one lof the various forms in which the principle of the su invention may be employed.`

in said annexed drawing:

Figure l represents an elevation of my improved fixture;

Figure 2 represents an elevation with parts broken away;

Figures 3 and 4 represent, respectively, a fragmentary side elevation and a frag` mentary vertical section of an annular refiector rim and ball-chain, forming parts of my invention;

Figure 5 represents a partial elevation and partial vertical section, showing means to which the upper end of the ball chain is secured and also means for locking the ball-chain to position;

Figure 6 represents a fragment of an annular peripheral rimof'the upper chain-receiving means; and

Figures T and 8 are broken partial eleva tions and partial vertical sections of different portions of a rigid tubular lamp-sup porting and wire-enclosing member, and locking means for the two parts of said tubular member and the shell members associated herewith.

FIXTURE.

192 1 Serial N0. 481,219,

' Referring to the annexed drawing in which the several ordinals refer to the same partsr in the different figures', the reflector of'my improved fixture' is denoted by the ordinal 1, the same being lsuspended by means of' the ball-chainiQf from the annular rim 3 of a casing member 3 hereinafter fully described. A 'tubular two-part lam)- supporting and wire-enclosing` member is indicated by the ordinals 4 and 4, the part 4 being suspended b-y means of its screwthreaded engagement with a wall member, such' as a ceiling tripod 5. A ceilingv shell is indicated by the ordinal 6 held to position by means of an internally-threaded bushing 7 (1o-operating with a threaded portion 42 formed upon the lower part of the member 4. The member 4' also is formed with a threaded portion 42 and the bushing 7 also covers and co-operates with this lasbmentioned threaded portion. The bushing T is also externally threaded and adapted tol co-o'perate with a nut 9, the latter forming a running collar upon said bushing Y', the externally-threaded part 7 of the latter bcing of a diameter greater 'than that of the bushing propler and also greater than that of aV lower soc ret part 72. The collar 9 also gives a pleasing finish to the fixture ad,-

jacently vbelow the shell 6.v Adapted to be received and accommodated by the socket is an upper'of two shell members 8 and l0 disposed respectively, above and below the chainlreceiving memberv 3. The latter is in reality one'piece with the upper shell member 8V and is a lower enlarged peripheral rim for saidI shell member and forms upper ball-chainreceiving means. An externally threaded portion 43 is secured to the rigid member part 4 and co-operatcs with a nut ll having a socket ll open at the top and adapted to receive and accommodate the shell member 10. The lamp and its associated elements are indicated by the ordinal l2 and the same are, in so far as my invention is concerned, ofstandard construction.

Referrinlg particularly to Figures 3 and 4, it will be noted that the peripheral rim 13 of the reflector l is formed with a downwardly turned bead 14, having a plurality of spaced slots l5 intersecting its lower edge. It will also be noted that the ball-chain 2 is comprised of a plurality of segments 16 spaced by balls 16. lt is evident that any desired segment 16 of the chain 2 may be slipped up through the slot 15 to suspend the reflector 1 at any desired height. It may be mentioned that, in order to obtain the maximum of' lumen efiiciency from the lamp 12 or to spot the light from the lamp 12 in anyl particular place to best fill the requirements of the individual case, the reflector should be correctly hung and this can be accomplished by means of the adjustment afforded by the ball-chain 2 and slots 15. l'n this connection, the size of the lamp 12 affects the height at which the reflector 1 should be suspended.

The member 3 ofl the upper shell member 8 is formed, around a downwardy turned peripheral rim 3, with spaced slots 18 intersecting its lower edge. A segment 16 of the ball-chain 2 can be slipped up into the slot 18 and the rim 3 snapped over a flange 10 formed upon the shell member 10, as plainly shown in Figure 5. Elements l8 and lO are held to position by means of the nut 11. In Figure 7 the respective lower and upper ends of the rod parts 4: and 4 are yshown as in contact in the plane f1, but the same may be spaced, during assembly, as desired, to obtain the preferred adjustment of the parts, provided, of course, said parts l and vl are both threaded into the bushing 7. f

The reflector 1 consists, as plainly shown in Figures 1 and 2, in addition to the rim 13 heretofore described, of a plurality of parabolic integrally connected members 17z each member 17 being the segment of a parabola of different dimensions from that of any parabola of which the other members 17 are segments. This reflector 1 is formed of glass or metal, preferably of spunv brass. The same, as well as the shell.

supporting, and finishing elements 8, 4f, 6, 7

8, 10 and 11, is finished in white paint enamel. y

By means of the rigid tubular member 4-41, I am enabled to permanently fix the height of the lamp 12 relatively to thereflector 1. By permanently I mean that the lamp 12, after being put into use, cannot be lifted carelessly or inadvertently so as to impair its adjustment relative to the reflector 1, it being assumed that the fixture has been originally assembled in a careful and calculated manner so as to produce the maximum efficiency. I wish also to particularly point out that my improved construction and assembly of the elements 3 and 10 affords eflicient means for locking the ballof the member 8 thenv chain to position at the top, which means a down- 2. A. lighting fixture comprising, supporting means; a reflector; a ball-chain for supporting the reflector from the support- .ing means7 the latter being formed with a rim having peripheral recesses for receiving the chain intermediate any desired two of the balls thereof; means for locking the ball-chain including ya suitably supported shell member formed with a flange over which said rim fastens; and means for supporting a lamp adjacent the reflector.

3. A lighting member; a canopy surrounding the wall member; a depending two-part supporting member, the upper part of which depends from said wall member and extends downwardly below said'canopy; a bushing surrounding the adjacent ends of' the two supporting member parts and having screwthreaded engagement with said ends, respectively; a running collar engaging the upper part of said bushing, the bottom of' said canopy lying adjacently above said bushing and collar; a lamp and a reflector.l the lower supporting member part supporting the lamp; and means mounted upon said lower supporting member part supporting the reflector adjacent the lamp.

1..A lighting fixture comprising, a wall member; a reflector; a two-part rigid tubular member, one part of' which depends from said wall member; a wall shell into which said tubular part extends; means for locking said shell relatively to said part; a lamp, the second tubular part supporting the lamp; a second shell through which said second tubular part passes; means for locking said second shell relatively to said second part; and means for locking said two parts relatively to each other, the reflector being dependinglyv supported from said second shell adjacent the lam Signed by me this 28th day of May, 1921.

BENJAMIN F. KLEIN.

fixture comprising, a WallV

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