US1502454A - Lamp - Google Patents

Description

W. H. WOOD July 22 1924- LAMP 6 Sheets-Sheet 1 Filed April 25 1921 Inventor.

WiHiam H.Wood.

tho

W. H. WOOD July 22. 1924.

LAMP

Filed April 25 1921 15 Sheets-Sheet Inventor. WiH

io.m H. Wood Att y.

W. H. WOOD July 22 1924.

LIAMP Filed April 25 L92] 3 Sheets-8heet 5 a kK llll Hll.

Fig.8.

by 4 V 4/9 Atty.

Patented July '22, 1924.

ATES PATENT mace;

mama n. woop, or swimwear; c1110.

ap ueaaos mad lprihflfltlll. "semi me u.

To all whom it myfconaem."

Beit known that I, WILLIAMHJWoOD, a. citizen of the United States, residing at South Euclid, in the county of Cuyahoga and State of'Ohio, have invented a certain new hid useful Improvement in Lamps, or which the following is a full, clear, and exact description, reference had to the accompanying drawings. q

Th I nventionfrelates to illuminating devices' especially such as those which are carried y vehicles,- for example the headlights ofautomobil'e and- 'trucks=- The objects of theinventionare theprovision of a new, improved,'and;s1mplified mode and means of securing the reflector in place; the provision illustrated certain physical structures in which my inventive idea can" be embodied, Fig. 1 is a front view of a standard automobile headlighthaving an inset reflector con-. tainin'g my improvement; Fig. 2 is a vertical sectional view through the device shown inFig. 1; Fig. 3 is a separated perspective view showing the elements of the headlight; Fig. 4 is a front view and Fig. 5 a sectional -.view showin one mode of securing the inset reflector upr ght in the absence of a dimmerbulb; Fig. 6 is a' central sectional view showing my invention as applied directly to a a m casing, the casing also being construct- .d 111 ilCClJllltYlCG with my improvements;

ig. 7 is uh en arged detailview showing the mode of scciirihg the lamp ring to the case; and Fi" 8 is a detail view of part of the locking hoop.

Describing by reference characters the parts shown in Figs. 1 to 3 inclusive, 1 represents the lamp casing which is generally of Substantially "lend-spherical form having at' its open end the intm'ned flange 2 whic is rovided at spliced points with circumferenlial hooks 3, and beneath these hooks with springs ipressing outwardly against said hooks. 5 represents the original or standard reflector whose mouth is-provided with a sealing cord-l5 outside of-which'is aflane 7 formed with spaced notches 8 adapted permitthe passage of-thevhooks 3. This,

to the mouthoffthe'housmg so that/the hooks enter'the notches, and then- ,turnin the same so that the flange is caught beneat these hooks. 9 represents the glass lpane or lens whiclris held afiain'st'the cord 6' by" .the inwardly projecting ,i'

I 109i the ring 11 which fits snugly over t e mouth'of the housing and is'provided interiorly at spaced points with hollow rectangular 'ho'xes- 12' which also engagethe projecting ends of.

hooks whereby all the parts are-held. in place. The springs 4 press the-reflector" rim against the inner walls of the boxes, and the latter against the inner faces of" the hooks, thereby preventingeitherrattling 'or reflector-is held in place by being sp iieaio disengagement. Slidably mounted in the vertex of the reflectoris a lamp socket 13 having a screw-threaded arm 14 connected to an adjusting screw 15 by which the lamp 16 can be focused;' and the upper part of the reflector is also provided with a second socket '17 adapted to"'receive. the "dimerbulb 18.

The foregoing isstandard' construction with many lamp concerns, and one object of the present invention is the provision often insc'rt'reflector' which can be introducedand secured insidethe reflector- 5' without' any modification of thedevice or interference with the features already present. -Such an addition issometimes desirable: for the purpose of hiding a rusted or unsightly ori mal reflector or for securing a measure ofi'ght control as're uii'ed by many ordinancesiand also desired y many drivers. This invention has been designed particularly to facilifate the employment of reflectors of the type shown in my Patents Nos. 1,235,275 and 1.235276, but is not restricted to any .particular reflector-construction except, as 'defined in my claims. The expressionfbowlshaped" is intended to cover all varieties of concave reflecton'whether paraboloid, y-

perboloid,.spherical, warped, or composite.

20 represents such inset reflector. ts heel is provided with an aperture 21 for the lamp socketand also preferably with a. d or spacer 22 adapted to rest against. the eel of the reflector 5, and its mouth is provided with a circular flat'flange 23 adapted to entor the inouthof the reflector 5. In case the reflector 5 is provided with a speciatdn'nwith ahole or slot- 24 to accommodate the same. In order to hold the inset reflector tightly in place suitable spring devices are interposed between it and the glass pane or lens whereby it may be forced yieldinglv into the original reflector, and other yie ding devices are disposed around the edge of the flange .23 to' center the same. There shown-three small leaf springs -carried by the forward faceof thetlange 23 and engaging the glass, andother small springs 26carrie1lhy the ed e of this flange and engaging the main reflecton. I have shown the springs 25 antl'26 as formed from the same thin-metal clips which are rigidly riveted to thereflez-tor, this bein" the simplest and cheapestconstruction, though not the only one as they can obviously be made separately. The stillness of the springs 26 is preferably less thanthatof the=membersj .25 since it is; imperative -that the reflector he' npplied'and maintained. in a given posibe forced completely to itsseat, which might not occur if the conditions were" reversed. These spriiE to be concea ed by the ring 10. I

I have shown the flange 23 ns'of variabl width, although the use of my invention is not limited to such a condition. I However, most light controlling reflectors are warped or asymmetrical in some way und require to tion.- 'henn dimming bulb 1 8 is employed the same'establishes and maintains this posit-ion of'the reflector; when no such dev cejs present other means are employed, for ex ample that shown 'n Figs. 4 11111125. Thebot y of the clip w rich carries the springs 25 and 26 is offset from the flange 23 to provide a narrow socket adapted to receive the shank 30 of a thin metal member having a hooked end 31. The side of.the flange which is uppermost is provided with one of these clips, and the cord 6 is ried out of its groove at this point suflicient y to receive the hook portion, after which the parts are assembled as shown.

In case the distance between thetwo reflectors is too great to be bridged by the usual socket an extension socket 33 ma be employed for either or both the main ulb an dimmer bulb-i f My invention is not limited to theinsertion of one reflector into another butmay. be utilized in the connection of areflector' into the lamp 'shell, especially in case the glass securing means he designed to conform thereto. .Fo'r example in Figs. 6, '7,

.and 8-, the reflector 20, is,-provided with the may pass.

5 are preferably located so as claims 39 is hcld-yieldingly against the sealing defines-an op3ening through which said flange etween said last flanges I interpose a contractile hoop 43 havim at one inta pair of radial fingers 44 which pro- ]eet through the narrow space between such flanges where they are aecessible for intentional operation but shielded from accidentul actuation.

The contraction of this hoop rombincd with the slantedsurface 38 draws the glass tightly against the cord 37 and seals the entire lamp interior. The contraction of this hoop can be enhanced by the application of a spring 45 if desired, though it is not generally necessary. The springs 25, en aging the lass, force the reflector rearward y to a solid seat provided therefor, such as the tube 46 rigidly secured to the shell and having the lamp socket 47 slidabl secured therein'by the joint action of-t e spring 48 and screw 49. The heel of the reflector is formed-with a hole snugly securing the. lamp socket which therefore holds the parts in line; 50 represents a washer which may be interposed, either for wearing. 'cush ioning, or spacing purposes. I

It will be noted that in both the Stl'll'.

lures here illustrated a. sealed casing is provided for the entire reflector and that're-- providing a peculiarly cheap and simple By the language howl-shaped structure.

receiving mcmbrflI include both construclete headli la here'described, the device P t 13 simple, cl ea and made of few parts. It will be understood that I do not "limit myself to the structures or details herein setjorth exceptes specifically recited inmy aving thus described my invention what I claim is: A I

LA" reflector for headlights having a.

= flange at its openend, a metal sprin carried by the o'rw'ard face of said a adapted to engage the glass of the headlig t in which it is placedand a plurality of laterally projecting metal centering devices spaced around sue open end.

2. A reflector for headlights-comprising a bow1-shaped me'mber having an aperture at its vertex and a circnlar flange about its rim, a plurality of spring devices cal-- ried by the forward face of said flange, and a plurality of yielding centering devices spaced about the edge of said flange.

3. In a lamp, in combination, a bowlsliaped receiving member, a lamp socket carried b the heel thereof, a bowl shaped rrllector a'ving a hole in its heel adapted to receive said socket, means for centering the open end of said reflector in said receiving member, rigid spacing means be tween the heels of said member and bowl, and means for yieldingly pressing said refiector into said receiving member.

4. In a lamp, in combination, a bowl shaped receiving member, a transparent closure sealed to its open end, a. lamp socket carried by the vertex of said member, a bowl shaped reflector having in its heel a hole for said lam socket and having at its mount a rim a apted to fit inside said receiving member, spring means interposed between said rim and closure whereby said reflector is seated, yielding means interposed between said rim and receiving member whereby said reflector is centered, and means for holding said reflector against rotation.

5. An insert reflector for headlights com.- prising, in combination, a bowl shaped member adapted to be introduced inside the original reflector, the heel of the bowl being apertured for the lamp socket, means carried by the mouth of the bowl for centering it in the original reflector, and spring means adapted to engage the lamp-closure and seat said insert reflector against the heel of the original reflector.

6. A reflector for headlights comprising a bowl shaped member having a hole at the bottom and a flange around its mouth,

spaced springs carried by the said flange and facing forwardly and yielding members also carried by said flange and facing later allv.

T A reflector for headlights adapted to be introduced inside the original reflector and comprising a bowl-shaped member hay ing a hole at its bottom adapted to receive the original lamp socket and a continuous circular rim around its mouth, and metal leaf springs carried by the forward face of said rim to engage the headlight glass and press said inset reflector into the original reflector.

8. In a headlight, in combination, abowlshaped receiving member, a bowl shaped reflector therein, a transparent closure traversing the open In uths of said member and reflector, a closure-securing device acting to draw said closure toward said member, means for sealing the joint between said receiving member and closure and metal springs interposed between said reflector and closure acting to force said reflector away from said closure.

9. In a headlight, in combination, a bowl shaped receiving member having a groove around its mouth, a cord in 'said groove, a. transparent closure making sealing contact with said cord, a bow'l shapcd reflector inside said receiving member having a hole at its vertex and a circular lip around its open mouth, and metal springs carried by said lip and engaging: said closure whereby said reflector is forced away from said closure and centered and held in place.

In testimony whereof, I hereunto aflix my signature.

WILLIAM H. WOOD.

Images