US827943A - Locomotive-headlight. - Google Patents

Description

No. 827,943. PATENTED AUG. 7, 190e.

E. c. SAWYER.

LOGOMOTIVE HEADLIGHT. APPLIGA'TION FILED JUNE 21, i905.

2 SHEETS-SHEET 1.

UNJLTE STATES PATENT QEFQE Y It.FOCQMTNEEADLIGHL No. 827,943, ,y

T0 all whom, it may concern: I

Be it known that I, EDWARD C; ,SAWYEia a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented'certain newr and useful Im rovements in Locomotive-Headlights, of which the following is a specification.

This invention relates to the headlights for locomotives; and its Objectis the production of a .headlight having means'for displaying' the number of the locomotive-in such a manner that said number may be read from any point beside or in. front of the engine. This object I accomplish Without impairing the efficiency of the reflector and With but a slight loss ofV light by arranging at each side ofthe reflector and near the front end thereof a glassplate bearing the locomotive-number, the numerals in the embodiment hereinafter described being alined vertically instead of horizontally,-as usual, in order to economize space. The said glass plates are arranged at an angle of about forty-five degrees with the length of the headlight and engine, whereby the numbers displayed on said plates may be read from apoint in 'front of the engine-as Well as from a point opposite the side thereof.

In the accompanying drawings, Figure l is a front elevation of a locomotive-headlight embodying the features of my invention.

Fig. 2 is a vertical central section through said headlight, taken on dotted line 2 2 of Fig. l. Fig. 3 is a horizontal Asection through the headlight on the plane of dotted line 3 3 of Fig. 2. Fig. 4 is a detail sectional view, on an enlarged scale, illustrating the construction of the side-number frames. y

In the embodiment shown in said draw- `ingsthe headlight-case `1 is provided with a door 2 at one side, a ventilator 3, and the forward extension or goggle 4. 'The forward side of the goggle isclosed by the glass 'plate 5, held in place by anyT suitable means.

The lighting apparatus may be of-aiy usual o i preferred form, and, as shown herein, comprises an oil-lamp 6 and a parabolic .reflector 7, both supported in proper relation to each other upn a base S; The base S .is held in 'v g Speceatonof Letters Patent: Application filed Jima 21, 1.905- Serial No. 266.350. 'f

' i patentada@ l Athe licor ofthe case' and adapted to overlie two opposite side edges of said base.

To provide means for reading the number of the locomotive from either s ide of the engine, I place at each side of the headlightcase at a point forward of the front end ofthe reflector 7 a glass plate 10,i bearing such number. In the embodiment herein shown thesey plates are placed one in each side of the goggie; but it will be apparent that Where the osition Within the headlight-caseibyime f forward side of the headlight-case is of av form difl'erentifrom that illustrated in the draW- ings said plates might beplaced somewhat nearer together or farther apart or somewhat nearer to lor farther from the reflector `than as herein shown.

I `The means for supporting the glass-plates 10 may be Aof any preferred construction.A In the present instance said plates are shown as supported Within elongated vertically-extending openings 11, formed in each side of the goggle 4, over which openings said glass by means of a retaining-frame 12, removably secured to the goggle by means of screws 13.

In use most of the light issuing from the lamp is projected by the reflector 7 throu h the glass plate 5 in a beam along the trac A portion, however, of the light passes through the side'glass plates 10, illuminating the numbers painted thereon. Being disposed at anangle of about forty-five degrees with reference to the length of the locomotive, the numbers may be read from a point beside the track in front of the engine or from a point directly opposite the side of the headlight. Bv disposing the side plates vertically theycan be made of sufficient size to display three oi four miniera ls. of-sta ndaid height and Width. Being arranged somewhat in front of the forward'end ofthe reflector, the num. bers are illunii-nafedfiritha'tiifling loss of light comparednithfthe loss occasioned by placing the side-number plates opposite the sides of the reflector and cutting away a portion of said reflector, as has heretoforejbeen propcsed..A When it' is dsired to replace a side glass for any reason,- the glass may' be rey moved upon taking ff the retainingframe 12 wiendinglat .an ane of' substantially foty- 'ive degrees with t e length of the hadi htx'ofoase, each of said side walls having an te Qnsama f 'gatd velr-tcaily-eJ-ttending opening "therein,

means ofsnbstantially the form of said openlocomotivemumbsr consisting of vertica alined numerals,` and means for securing said 15 number-dlspla` 'n means in saido enin s.

'PE WARD C. SAgVYE Witnsssss:

' `L. L. MILLER;y 'I 4 M. vM. DALEY.

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