Патент USA US2128470код для вставки
Aug. '30, 193.8. v P_ D. pHlLLgpg 2,128,470 LIGHTING DEVICE Filed Jan. 27, 1937 Q N INVENTOR „ fmfcßßízí/ .5. BY W,%,@ ATTORNEY? .L r ZJÈÁY@ Patented Aug. 30, 1938 PArsNT UNITED STATES Fries 2,128,470 LIGHTING DEVICE " Paul D. Phillips, Elmhurst, Ill., assigner to Ben jamin Electric Mfg. Company, Des Plaines, Ill., a corporation of Illinois Application January 27, 1937, Serial No. 122,491 4 Claims. (Cl. 240-78) I2 and means for mounting the latter on the This invention relates to improvements in lighting devices, and particularly to a device adapted for application to a lighting ñxture de signed tol afford general illumination over a space of considerable area, for the purpose of inter cepting a portion of the light output from the fixture reflector and adjustably holding it in posi tion between the lamp and the inner surface - of the ñxture reflector. The mounting means includes a bar I3 to which the reflector I2 is -5 lamp and concentrating it and redirecting it to secured by suitable means such as the rivet I2ia, this bar being pivotally connected at its upper some desired point or upon some desired object end to an upwardly extending arm` M of a gen and thus increasing the intensity of the illumina erally L-shaped bracket or supporting member I5. This bracket I5 has another arm Iii which is 10 curved in an arc having the pivot Il, on which the bar I3 swings, for its center. Member I5 is preferably a casting of light weight metal such as aluminum. In addition to arms I4 and I6 the bracket has a downwardly 15' 10 tion on such point or object. In an application filed by John H. Waterbury October 12, 1935, Serial No. 44,689; the inventor discloses several forms of a lighting construction which includes, in addition to the main fixture 15 reflector and the lamp, an auxiliary reflector located within the main reflector, and means for extending portion I8 which, when the device is supporting the auxiliary reñector, the supporting in place on .a fixture reflector, extends slightly below the rim of the latter. To this extension IB is hinged, at I9, a clamping member 2d, which also is a light-weight'casting. Clamping mem- 20 ber 20 extends up on the outer side of the fix ture reflector and hooks over the rim bead II of of the latter and is thus prevented from slipping down and becoming separated from the reñector. The clamping member also extends up into theV 25 means being so constructed and arranged that the auxiliary reflector may be tilted to vary its angular relation to the axis of the main reflector and lamp, and also to permit the auxiliary re flector to be moved to any position around this axis without changing its angular relation thereto. My invention relates to improvements in the mounting of the beam projector reflector which 25 forms a part of each of the constructions shown fixture reñector a short distance and carries a in the prior application referred to, one of the objects of the invention being to provide a de thumb set-screw 2I which, when turned in, en gages the downward extension I8 of the bracket I5 and forces the bracket toward the inner sur face of the fixture reflector. The reflector is thus 30 firmly clamped between the bracket and the clamping member. A strip 22 of felt or other suitable material is secured, by the use of cement vice which is sturdy and not likely to get out of 30 adjustment. Another object is to improve the appearance of the device.l Further objects and advantages of the invention will be apparent from the description,- and the claims. In the accompanying drawing, 35 or other suitable means, to the part of the bracket which is pressed toward the reflector, to prevent 35 injury to the enamel of the latter, and a strip 23 Figure 1 is an axial sectional view of a light ing ñxture fitted with my improved beam projec tor, and Fig. 2 is a fragmentary sectional view, the sec tion being taken on line 2-2 of Fig. l. Referring to the drawing in detail, the main 40 lighting unit or fixture comprises a bowl-shaped » reflector 5, a socket 6 for supporting the lamp 'I with its light center 8 on the axis of the reflector 5, and a nut 9 threaded on the conduit for clamp ing the flange of the reflector 5 in position with 4 respect to the socket 6. The upper portion I0 of the reñector forms a hood to enclose the socket 5 and the upper part of the lamp. The lower edge of the reflector is rolled to form a stiffening bead I I for holding the rim of the reflector to its annular form. This type of lighting fixture is in general use and is designed to light a con siderable area below it substantially uniformly. i The beam projector comprises a small, prefer 55 ably concave, auxiliary beam-projecting reflector ‘ of similar material is secured to the inner side of the upwardly extending portion of clamping » member 2U. - The lower end of pivoted auxiliary-reflector- 4e supporting member I3 is bifurcated and strad dles the curved arm it of the bracket I5. A thumb set-screw 2li is threaded through one of the legs of this clevis-like part of the pivoted sup porting arm I3, and, when screwed in against [i5 arm I6, securely locks the swinging arml and the beam-projecting reflector against movement about the pivot I'I. It will be seen that the beam projector may be positioned at any desired point around the 50 axis of the fixture reñector and lamp, and that this position may be changed by merely loosening thumb-screw 2l slightly and sliding the bracket and clamp around on the reflector bead Il. The beam-projecting reflector is preferably 55 2 2,128,470 projected can be adjusted in a plane parallel to the axis of the lamp and fixture reflector, that the hood and into the reflector, said annular re flector having its lower annular edge lying sub stantially in a plane perpendicular to the axis of the lamp, and an auxiliary refiector mounted so that the major portion of it lies between the is, the beam can be swung in a vertical plane inner surface of the annular reflector and the concave and polished or etched on its inner side. It will be seen that after thumb-screw 24 has been loosened the direction in which the beam is when the fixture is` installed so as to light a space axisof the lamp` for directing a beam of light below it, as is usually the case. laterally toward the axis `of the lamp and under Further modifications will be apparent to those neath the lower annular edge of the annular re skilled in the art and it is desired, therefore, that the invention be limited only by the prior art and the scope of the appended claims. Having thus described my invention, what I claim and desire toI secure by Letters Patent is: flector, said auxiliary reflector being mounted for 10 swivel adjustment about the axis of the lamp whereby the lateral light may be intensified in the desired radial direction, and said auxiliary l. A beam projector for use with a lighting fixture having a bowl-shaped reflector and a lamp, said beam projector comprising an auxiliary reñector and means for adjustably mounting the angl-e of inclination of the beam therefrom, said 15 mounting means comprising a bracket having clamping means embracing the lower edge of said annular reñector for securing it to said lower same within the fixture reflector between the annular edge in various adjusted positions about 20 latter and the lamp, said mounting means com prising a bracket member, a clamping member hinged to said bracket member and adapted to clamp the fixture reflector between itself and the bracket member with the bracket member inside the fixture reñector, said bracket member having an arm extending toward the axis of the lamp and fixture reflector, a third member carry reflector being adjustable to vary the vertical the axis of the lamp, said bracket having an 20 arm extending upwardly from said annular edge and inwardly toward the axis of the lamp, said auxiliary reñector being pivotally mounted ad jacent its upper edge and adjacent the upperend ing the auxiliary reiiector and pivotally sup of said arm to vary the Vertical angle of inclina 25 tion of the reflected beam. 4. A lighting construction comprising a hood, an annular downwardly opening bowl-like re ported by said arm so that it may be swung in ?lector secured to and depending from said hood, 30 a plane parallel to the axis of the fixture re flector to vary the position of the auxiliary re liector and consequently the direction of pro jection of the beam, and means for locking said third member to the bracket member to hold it and the auxiliary reflector in adjusted position. 2. A beam projector for use with a lighting lix ture having a bowl-shaped reflector and a lamp, said beam projector comprising an auxiliary re flector and means for adjustably mounting the 40 same within the fixture reflector between the latter and the lamp, said mounting means com prising a bracket member, a clamping member hinged to said bracket member and adapted to clamp the fixture reflector between itself and the bracket member, said bracket member hav ing an arm extending into- the fixture reflector and toward the axis thereof, a third member carrying the auxiliary reflector `and pivotally supported by said arm so that it may be swung to vary the position of the auxiliary reiiector rela tive to the lamp and consequently the direction of projection of the beam, the bracket member having another arm, and means for locking said third member to said other arm to hold said third member and the auxiliary reflector in ad justed position. a lamp socket in said hood for supporting an electric lamp so that it extends downwardly from the hood andA into the reflector, said annular re ñector having its lower annular edge lying sub stantially in a plane perpendicular to the axis of the lamp, and an auxiliary reñector mounted so that the major portion of it lies between the inner surface of the annular reiiector and the axis of the lamp forI directing a beam of light laterally toward the'axis of the lamp and under neath the lower annular edge of the annular re fiector, said auxiliary reflector being mounted for 40 swivel adjustment about the axis of the lamp whereby the lateral light may be intensified in the desired radial direction, and said auxiliary reflector being adjustable to vary the vertical angle of inclination of the beam therefrom, said mounting means comprising a bracket having clamping means embracing the lower edge of said annular reflector for securing it to said lower annular edge in various adjusted positions about 50 the axis of the lamp, said bracket having an arm extending upwardly from said annular edge and inwardly toward the axis of the lamp, said auxil iary reñector being pivotally mounted adjacent its upper'edge and adjacent the upper end of said arm to vary the vertical angle of inclination of 5.5 3. A lighting construction comprising a> hood, i the reflected beam, and means for securing said an annular downwardly opening bowl-like re auxiliary reflector in various positions of adjust flector secured to and depending from said hood, , ment about said pivotal mounting. UU a lamp socket in said hood for supporting an electric lamp so that it extends downwardly from 30. PAUL D. PHILLIPS.