US1398973A

US1398973A - Headlight

Info

Publication number: US1398973A
Application number: US235136A
Authority: US
Inventors: Mobre James Robert
Original assignee: CHARLES L CASSIDY
Current assignee: CHARLES L CASSIDY
Priority date: 1918-05-17
Filing date: 1918-05-17
Publication date: 1921-12-06
Anticipated expiration: 1938-12-06

Description

l. H. MGORE.

HEADLIGHT.

APPLICATION' FILED III/Iv II. ISIS.

Paented Dem 6I WZL JAMES ROBERT MO RIE, OF TARRYTOXVN, NEVI YORK, ASSIGNQR F NEMHALF TQ CHARLES I. CASSIDY, OF NEW YORK, N. Y.

HEADLGHT.

Leaders..

Specification of Letters Patent.

Patented Dec. 6, 192i.

Application filed May 17, 1,913. Serial No. 235,136.

T0' all Awhom 'f-15 may concern lBeit known that l, Janne ltoenn'r Moena a citizen of the United States, and a resident of Tarrytown,- county of illestchester, and State of llewdorlis have invented a certain new and useful lmprovement in Headlights, of which v'the following` isa specification.

The invention relates to headlights for vehicles, and more particularly for automobiles, although it will be understood that the invention maybe carried out in connection with other devices such as locomotives and trolley cars.

.The object of the invention is to produce a headligl'it by means of which no light rays will beso thrown as to interfere with the vision of' persons 'using 'the road.

A further object is to construct the device so vthat all of the light from the source `:vill be utilized to illuminate the roadway and vicinity.

A. further object is to provide a device for the purpose specified which vmay be easily attached to existingapparatus.

eny

These and further objects will more fully appear in the following specification and accompanying drawings considered together or separately. y

One embodiment of the invention has been illustrated in the accompanying drawings, in which like parts in all of the several/figures are designated by similar reference characters, and inwhich- Figure l ,-is a longitudinal sectional view of an automobile head light embodying the invention, the section beingA taken on the line 1-1 of Fig. 2. f

Fig. 2 is a -front elevation of the device.

Fig'. 3 is a horizontal section taken on the line 8-3 of Fig?. l.

Fig. et is a front elevation of a modification, 'and Fig. 5 is a longitudinal section of a 'lurther modification.

ln Figs. l, 2 and 3 the invention is shown an attachment for use in connection with existing forms of headlights. ln this enibodiment of the invention l designates a rcflector, 2 the source of illumination, 3 the glass frontend l the annulus for retaining the glass in position. The lamp 2 is located in the horizontal center of the reflector and the socket 5 extends through the reflector and has attache thereto the leading in. wire 6.

A Carried within the reflector l is anauxiliary reflector 7 which partially surrounds the lamp 2. This auxiliary reflector surrounds the lamp to such an extent as to intercept all rays of lig-ht emanatinnr from the lamp below the plane ol the horizontal center and prevent such rays 'from reaching` the parabolic reflecting surface below the plane of the focal center of such reflector.

.lhe auxiliary reflector 7 is preferably in the forni of a cylindrical trough witli its concave or inner 'surface highly reiicctive. The rear end of the trough vis inclosed by means of a. wall 8 which is shaped to conform to the configuration of the apex of the reflector l. The wall Sis provided with an open ended slot il throuo'h which the socket of' the lamp projects and will permit ready removal of tli auxiliary reflector 7.

ln the `front end ot the reflector 7 in line with the focal axis ot the reflector i and in proximity to the glass 2l is carried a .screen l() preferably of semi-transparent or opalescent character. The screen l() may, however, be of opaque material desired. The screen may be secured to the trough in any desired ,manncror it may be attached to or form a part of the zglass 3. in the drawings, Figs. l, 2 and 3 the screen is illustrated as prov vided with a frame ll secured to the trough 7 and surrounding the edges of the screen but it will be understood that the screen may be secured invplaceby other means and that the frame may be omitted if desired.

Carried by the trough 7 or traine il, as the `case may be. are spring arms l2, 'l2 which bear against the inner side of the 3 and serve to retain the reflector in position. against the reflector l andto prevent rattling. rThe ends of the spring arms are preferably provided with elastic pads i3 to prevent injury to the' zglass.

ln the embodiment of the invention illustrated in Figs. l, 2 and 3 two arms '14, 14 are carried by the trough 7. Each arm i4. car

ries a movable extension 15 provided with a lio ' Werd.

Leeeeee unobstructed passage of eej/s reflected fromA that portion of the Weli 8 which lies below the horizontal center of the himp.

It the seieeii he of opaque material its inner surface will be, highlff 'reflective sind so disposed that ligit 1 etsii from it will he directed to the uppei. heit oit the mein relieetoi' and themes orsiiald .und elowiiwalci.'

lu Fig. is iiustifeteo im iiiipi'ovecl form oi heaiidiight. 'lh this embodiment of the invention the ieieotoi is in the form of s semi-peieholoiol. Viewed from the front' this reflector l? appears es e semicircle. The auiziieiy z'eiieotoi 18 .may he integral with the refieetoi l? md the piene surfaces 1Q connecting the two retiectoz's may he of such a. metete that they' Wli not retieot light oi' they so ooiistlueted thateny iight reiiected fioin them will i'ei'ieeteil heck to the mein ieiieetoi' and thence Ward sind downward.

The screen 10u may he sie of the front glass .which hes been ieiii'lei'sd iioii-trniis lparent by send Meeting oi: other v"ise or it may he e separate piece o'f ieeteiizii ofi' hoetranspiiient character ceiiienteci oiothelwise secured to the firent glass.,

ln operation ierys from that portion of 'the soui'ce above the hoiixontei exis will. een counter the upper heli of the parabolic lector l and he reflected forward ami downliays emanating from the lump heiow the hoi'izentel exis will heieieeteii from the auxiliary reflecties to the upper psi't of the reiieetor `impl thence forward :imi downward. L wht'ieieetefi fiom that pol'- `tion oi? the w; l ,t of the i'eiieetor 'i' heiow the exis will he iii caught by the main ,Y reieotoz' and iii peut be intercepted hy the screen 1G, 'which .hitter iviil also intercept flireot rays fiom lamp. o

As shown in 5 the screen 20 and auxiliary ieieetoi may he ii'iecle integral and secured to :i stationery portion of the headlight.

one of peil, hy means of wiiieh the do viee may he ettoehed the lmnp bullo.

The euxiiieiy fezieotoi' may be 'so propo?n tioiiecl oiifl arranged. that tiene of the iilrveet rays from the soxli'ee wili pass thi'ough the giass 3.'

All of the iight the lamp will issue from the headlight, :iii ot it will se Yeeeted forwaid. enti none of 1t will ie- Heated 1n mi upward direction but Wili he vfront for the casing, a lamp wit in the cas- The ligure `shows e. spring erm- .f1 directed to the surface ofithe road" Those rays which poss through the semi-triespai-, ent screen Wiil he sosoftened as to-lo un ohieetioneble. y

ii ecoordance'with the provlslons of hhe` 65 patent statutes, the principle of thefin'vehf tion' is described, together with the appieietus which is considered to represent they"` I bestfemhotliment thereof, but it is desired to if have it understood that the apparatus shown To 1s meely illustrative, end that the invention mov he carried ont in other Ways. l.

lieviiig how described the invention what is claimed mid desiifed to he seeured by .Let-

LA' hezilight comprising dessin' hev'- in a, eiehohe meer releotln sur aos e.'-

ing, .ee-icl .lamp being located in, the 'focal axis of the reflector, e trough-she eed noonebeitv lie- 30 y.

low the lmnp, said member .having sides ex- I tending upweidf toepproxilimtelyuthe focal. v exis of the rei'leotor sind on elther'side 'of the lamp, tscreen Viii front of the hump', .and

ineens. oesuppoiting the member Within the. 35 1 cesing,se1d means eiigiigihgthe casing in f proximity to the front. I

Q.. El. heedlight comprising-ii Casin heve psiazholieinner, reiiectincr'sury ace, e

front for the easing, o, lomp within the cas- 90 ing, seid iemp. heilig located 4in the focal mais of the ietieetoi', e .trough-shaped 1n`eibei` below' the iemp, lseid member having sides extending inward 'to approximately the focal exis of side of the iemp, e screen in front of. the lamp, means ei supporting the member within the .easing-'end sprmgzarms carried hy the .member end'eegeging the fronte' e i'eiiector and on either 05 headlight comprising a` circuler-eas'100 ingheviiig e pemholie inner, reflecting Surf i fece, e. fiontoethereesing, e -lam within the easing-seid lamp heilig locate in,V the ocei exis of the itetiectoi, e, trough-Shapedf member heim?, the lamp, seid member hay`v` 1 05,

ing 1sides exteiidiiig upward to eppxiixz'b4 mete/.ly the focal his of the refieetoi anden" either side .of/ the lamp, e-{sereen carried by the memhei proximity to the liront, solid".k 'nA screen extending vLigwer ijadiellyi-rom'the 1 center toward' the periphery of the; casing: and diminishing in Width toward its iup4 er'j end, and ineens for supporting 'the memhei' WithinV the casing. This specicetr'vii signed and witnessed 1 this seefeiithdey of May, sixties Rossem Moose; Yvlfitiiess i A. E. Homme