US1701193A

US1701193A - Adjustable reflector for lighting devices

Info

Publication number: US1701193A
Application number: US130377A
Authority: US
Inventors: George H Rolfes
Original assignee: ALEXANDER H HANDLAN
Current assignee: ALEXANDER H HANDLAN
Priority date: 1926-08-20
Filing date: 1926-08-20
Publication date: 1929-02-05
Anticipated expiration: 1946-02-05

Description

Feb. 5, 1929.

G. H. RQLFES ADJUSTABLE REFLECTOR FOR LIGHTING DEVICES Filed Aug. 2o, 1926 A rra/wens Patented Feb. 5, 1929.

UNITED ySTA Tes ` GEORGE II. ROLEEs, or' sfr. LOUIS, MISSOURI, AssIGNOn 'ro` ALEXANDER II. HANDLAN, j

TPATI-:NTN OFFICE.

F sT. LOUIS, MISSOURI.

ADJUSTABLE REFLECTOR FOR LIeHTINGnEvIOEs; u

Application med August 2o, 192s. serial No. 130,377.

My invention relates to an adjustable rellcctor t'or lighting devices, and has for its particular Object the positioning of the re- Hector, together with the incandescent bulb in the lighting device, in proper focal re-` lationship with the lens at the forward side of said device. In order to properly locate the bulb and reflector with reference to the focal point of the lens universal adjust` ments must be made, both with respectto the bulb and the reflector, to `correlate these with respect to the focal position of the lens. particularly to the universal adjustment of the reflector', the bulb-adjusting means being embraced in another application heretofore filed. l l.

Fig. I is a front elevation of my device.

F ig. II is a side elevation of the same.

Fig. III is a detail side elevation of the rear portion of my device showing the use ot' a liner strip, or shim, at the bottom portion thereof.

Fig. IV is a front view of the lower por tion of the device shown in Fig. III.

1 designates a reflector ot' :conventional type mounted in a supporting ring 2 which split as shown at 3 and provided with outwardly turned ears 4, which are apertured to receive a bolt 5 for drawing said ring 2 together when the rellector 1 is lo cated therein. G are ears, prelf'erablyfour in number, formed on the outer periphery of the ring 2 Fig. I) and are apertured to receive screws 7 which serve to limit the nu'ivement oit' the ring 2 with respect to another member hereinafter to be described.

8 are adjustment screws also Vpassing through apertures in the ears 6, and 9 are springs surrounding said screws 8. 10 designates a supporting member, preferably ringelnlped, provided with forwardly projecting lugs 11, between the `forward ends of which and the inner faces oit' the ears 6 the springs 9 surrounding the screws 8 are adapted to rest. These lugs l1 contain sirew-threaded apertures, and the screws 8 are adapted to project into said screwthreaded apertures. The ring-shaped mem`- ber 10 also contains preferably four screwthreaded apertures 12 normally located between the lugs 11. 13 designates the base or the rear end of a lighting device through which screws 14 are adapted to pass to seat in the apertures 12 in the ring-shaped My present invention relates ,more

member 10. Surrounding said screws and positioned between "the ring-shaped member 10 and the end 13 are springs 15..` 16 designates a supporting member attached to the bottom` portion of the ring-shaped member 10 which projects forwardly and supports the incandescent bulb A and its associated universal adjustment members. As the ad-` justment means for the bulb A is the subject-matter of another application for Letters Patent, these members `will not l be further described herein. i

In the operation of my `device the bulb d A` is first `focused withrespect to `the `reflector, after which the ring 2 carrying the reflector 1 andi the bulb A `is placed inthe lighting device at` the `pointadapted to receive the same, and then the reflector is adjusted to properl locate. the same `with res ect to the `loca position O the lens (not lown) `By adjusting the screws 14 the ring or support 10 may be tilted `or moved into any `appropriate position, after which the reflector-supporting ring 2 may be adjusted by means of the screws 8, which pass through the ears 6 into the threaded apertures in the lugs 11 located on the ring or 'support 10. When the propel' focal posisprings 9 located between the ends of the lugs 11 on the ring 10 and the ears 6 on the reflectonsupporting ring 2 yieldingly serve to hold the reflector-support1ng ring 2 in its fixed adjusted position. The springs 15 between the base 13 and the ring 10 surrounding the screws 14 also yieldingly serve to hold the ring 10 in its adjusted position. In the event a greater range of adjustment is necessary between the ring 10` and the base 13, liner strips, or shims, 17 are -inserted as shown Vin Figs. III and IV between the base 13 and the ringV 10. I thus secure a maximum universal adjustment with a minimum amount of movement of the` parts to be adjusted inorder to secure the proper focal relationship betweenthe bulb, reflector and the headlight lens.

` IVhile I have used the term headlight herein, I Wish it to be understood that niy adjusting device is adapted for use in any type of light utilizing a lens and requiringl the reflector and bulb to be adjusted with respect `to the `focal position of such lens. Floodlights and searchlights, for illustretion, are intended to be embraced` also Within the scope of my invention.

I claim: 1 l

l. In a device of the character described, a reflector, 'a supportingl ring for seid re- `liector7 ears carried by seid support-ing ring, screws adapted to pass through apertures in sii-id ears, enotherfring associated with said redeeter-supporting ring and eperturcd to receive the screwspassing` through the ears on said reiieclor-snpporting ring., springs surrohnding said screws, and means for supporting said last mentioned ring in e lighting device, substantially as described.

Q. In a device of the character described, a reflector, a supporting ring' for said reliector, :Llplurality of ears carried by said supportingring, screws adapted to pass through apertures in said'ears, another ring associnted with seid reflectier-supporting ring and provided With screw-threaded apertures adapted to receive said screws passing through said eai's on saidredentor-supporting ring', springs surrounding said screws and located between said rings, und support ing ineens for adjust-ably 'carrying both of seid rings, substantially as described.

3. In a device of the character described, n. reliector, a supporting ringifor said reiiector, a plurality of cars carried by said suplmrting ring, screws adapted to pass through iper-tures in said eers, another ring associated With said reflector-supporting ring` and provided with screw-threaded apertures adapted to receive said screws passing through said cars on said reflector-supporting ring, springs surrounding said screws and located between said rings, e suiliport for said secontil-innned ring, screws passing L through apertures in said support and adapted to enter screw-threaded apertures in said second-named ring, and springs surrounding said last-named screws and located between said support and said seconrilenanied ring, substantially as described.

1. In avdevice of the character described, a reflector, a supporting ring,` for said reflector, sai/r supporting` ring being; provided with openings therein, iestenings adapted to extend vthrough the openings in the supporting' ring, a supporting nieinber asseci ated with the reflector supporting rin-g (and adapted to receive the zrstenings extending through the openings in the ring, ineans i'or pr `ridingl a resilient backing for the rellee* tor-supportingl ring, and ineens for supporting the supporting ineinbe'r Within a lantern.

In testimony that I claim the foregoing I hereunto atiiX iny signature.

GEORGE H. ROLFES.

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