US1769426A - Lamp construction - Google Patents

Description

y 1930- H. c. FOSTER 59,

LAMP CONSTRUCTION Filed June 25. 1928 Patented July 1, i930 2 1,769,426

HARRY o. rosrnn, or connnnsvrnrn, insti utes-serene TOVINDIANALAMP CORPORATION, or CON'NEBSVILLE, INDIANA LAMP CONSTRUCTION", p I

Application filed June 25, was." eel-a1 No. 288,163.

This invention relatesv to a lamp structure 1 door rim while at the same time forcing the particularly adapted for use in connection doorrimandreflectortogether for clamping with automobile lamps or the like. 7 and'sealingthe lens and gasket therebetween.

The principal object of the invention is to V The clamping bar, 17 ,is provided with a provide a lamp structure which will be ecoscrew threaded aperture indicated at 20 into nomical in construction and assembly, while which the screw 21 extends, said screw havpermitting of convenient access to the ining a head22 engaging a suitable recess terior of the lamp for replacement or adformed in'the back of the casinglO. Upon justment of the bulb without requiring the screwing the screw 21 into the bar, the bar 10 disassembly of the lens, reflector, door rim is drawntoward theback of the casing so and sealing gasket. This is of great adas to cause the'door rim 12to be drawn therevantage to the user of the lamp inasmuch as on. and secured in closed position.

; difficulty is usually had with the disassembly Thebulb 15 is provided with the usual and assembly of these various parts merely base inserted ina socket 23 which is mounted 15 to give access to the bulb, in asleeve 24 fixedly secured to the bottom of By means of this construction the lens, re the casing-so as to extend forwardly and upflector and door rim, as well as the sealing wardly at an angle thereto. A suitable apergasket, are securely held together as a' unit, ture 25 is formed in the lower part of the re- Which unit may be readily removed to permit v flector which is just large enough to permit 7 20 the bulb contained within the casing to be the bulb 15 to pass therethrough when the 7 replaced or adjusted. This is accomplished unit including the reflector is mountedin by providing a clamping bar which embraces place. 7 the reflector and clamps the reflector, door The reflector, door rim and lens are serim and sealing gasket together under spring cured and held together as a unit by clamp- 25 tension, which clamping bar is removably ing the clamping bar 17 in position. The secured direct to the casing for holding the bulb is mounted in the casing in proper adunit therein. justed position. The reflector unit is then The full nature of. the invention will be positioned within the casing by causing the understood from the accompanying draw-- bulb to pass through the aperture 25, where 30 ings and the following description and upon the clamping bar 17 is engaged by the claims: screw 21 and screwed into position.

Fig. 1 is a central vertical section through vVherein the invention is herein illustrated the lamp. Fig. 2 is a section taken on the as relating to a side lamp construction, havline 22 thereof. Fig. 3 is a rear elevation ing the bulb extending up from the lower of the unit removed from the casing. portion thereof, it will be readily understood In the drawings there is shown a lamp that it is also applicable to head lights, wherehaving a casing 10, reflector 11, door rim 12, in the bulb extends forwardly'through the lens 13, sealing gasket 14 and bulb 15. The center of the reflector. The opening 25 in lens with the sealing gasket is mounted withthe reflector is not ofsuch'a character as to 40 in. an outwardly extending flange 16 formed to detract from the reflector surface for prac about the periphery of the reflector. They tical purposes. The light rays emanating are held in place as a single unit by the clampfrom the bulb which strike that portion of ing bar 17 which embraces the reflector, as the reflector would be obstructed by the bulb shown in Fig. 2. Said clamping bar is itself under ordinary conditions and the 45 formed with outwardly turned ends 18 which opening is not much larger than the area usuhook into the door rim. Secured adjacent ally taken up by the lamp socket.

thereto there are spring arms 19 which bear The invention claimed is;

against the reflector under spring tension. 1. In an electric lamp, the combination of The tension of the spring arms 19 act to hold a casing, a lamp bulb supported by and with the hooks 18 in interlocking position with the in said casing, a reflector member, a lens -member, a door rim member, aclaniping'bar embracing said reflector and extending about the rear thereof having its free ends engaging said door rim, a spring secured to said bar for engaging the reflector. and forcing it under spring tension against, saidrim Wherei by said lens-Will be ciampedfbetweensaid reflector andrim,,and means for removahly. e securing said bar to the casing for removab1yhoi'din'g the members clamped thereby in position relative to said casing, said reflector having'an opening therein to'permit passage 7 of the bulb therethrough in the'positioning V and-removal of said members-Without 'distnrbingthe relation of said bulb and casing.

2. In l an electric lamp; the: combination of a casing a lam-p'bulb supported by and Within saidcasing; a reflector member; {11811811516111- berg'a doorr-i'm member; -a clamping barem- 2b "bracing" said reflector and 1 extending 3 about i the rear thereof having its free ends engagv in'g' said-door rim, a 'spring secured to said H ar adjacent-each of thefree ends thereof 7 ion-engaging the reflector and forcing it im- "-derspringHtension againstsaid rim whereby -sa id lenswill be clamped between s'aid re-- I flector "and i-n1, and means for r-elnovably securing saidba-r to the casing for 'remevably g {h the-members cian lpe'd therebyin po-- eosi n 'rela trvefto said casing, -s-a1-d reflector having an opening therein to permit; passage oftjhe bulb thereflhro-ugh inthe positioning l I and removal of said members wi t houtdi-s H tu nb-ing the relationbf said bulb' aind eas i'ng. l In Witness Whe'r-eof, I- haVe hereunto afiixed mysignature.

HARRY 'ojrosrnn.

Lat :1

@3 2 a. a r e a i 1 1,769,426 7

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