US1085453A - Locomotive-headlight. - Google Patents

Description

E. H. MARSHALL.

LOCOMOTIVE HEADLIGHT. APPLICATION LEILEDAIPBKZI, 191s.

Patented Jan. 27, 1914.

W! T/VESSES:

ATTbR/VEY E. H. MARSHALL.

LOGOMOTIVE HEADLIGHT. APPLIGATIdN FILED FEB.21,1918.

Patented Jan. 27, 1914.

2 SHEETS-SHEET 2.

INVENTOH 5 f7. Mars/70% citizen of the E ARL H. MARS-HALL, 0F LAWRENCE, KANSAS.

LOCOMOTIVE-HEADLIGHT.

Specification of Letters Patent.

Patented Jan. 27, 1914.

Application filed February 21, 1913. Serial N 0. 750,004.

To all whom it may concern Be it known that I, EARL H. MARSHALL, a United States, residing at Lawrence, in the county of Douglas and State of Kansas, have invented certain new and useful Improvements in Locomotive- Headlights; and I do declare the following to be a. full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures .of reference marked thereon, which form a part of this specification.

My invention relates to locomotive headlights, and has for its principal object to provide a headlight all or parts of which may be actuated from the engine cab to give signals, or to follow a curved track.

,a'ccomplishing these objects I have provided the improved details of structure hereinafter described and illustrated companying drawings, wherein Figure I is a side elevation of a loco-mo tive equipped with a headlight constructed 'section of the same.

in accordance with my invention. Fig. II

is a perspective view of the headlight and supporting bracket. Fig. III is a transverse vertical section of the headlight and bracket, showing the gearing and electric wire connections. Fig. IV is a longitudinal vertical Fig. V is a front ele-v vation of the operating wheels.

cross-bar 7, the latter having a Referring more in detail to the parts 1 designates a locomotive of ordinary construction, having a cab 2 and boiler 3, to the forward end of which is secured a bracket 4 comprising an attaching plate 5, forwardly extending side members 6 and a boss 8 provided with a central aperture 9.

Revolubly mounted on the bracket 4 is a headlight 10, comprising a base 11, having a recessed under portion 12 for receiving the bracket boss 8, side members 13 and a top portion 14, one of the side members being provided with a door 15 and the other three sides with apertures 16 into which red, white and green lenses 17 may be fitted and held in position by clamping rings 18.

Rigidly secured to the base 11, by means of a set screw 19, is the tubular hub 20- of a bevel gear 21 which bears against the '23 which is journaled in a in the ac and is tubular hub 30. The

under side of boss 8 and prevents the jar or motion of the engine from displacing the headlight. The gear 21' meshes with a similar gear 22 rigidly mounted on a shaft bearing 24 in one of the side members 6 of the bracket, and in -a sleeve 25 revolubly mounted in a bearing 26 in the opposite'side member, the other 'end of the shaft being provided with a bevel gear 27 which meshes with a bevel gear 28 rigidly mounted ona rod 29 which extends back to the locomotive cab.

Revolubly mounted in the tubular hub 20 of gear wheel 21 is the tubular hub 30 of a bevel gear 31 which bears against the under side of bevel gear 21, and meshes with a similar gear 32 rigidly mounted on sleeve 25, the opposite end of the sleeve being provided with a bevel gear 33 which meshes with a bevel gear 34 on the tube 35 that incloses rod 29 and also extends to the loco- :motive cab.

R-igidly mounted on the upper end of hub 30, by means of a set screw 36, is a yoke 37 which bears on the top of hub 20 provided with a rearwardly and upwardly projecting arm 38, which supports a reflector 39 in line with an electric are light 40, one of whose carbons is carried in a socket 41 of the yoke 37, and the other in a feeding device 42 secured to and insulated from the top 14 of the headlight, each being electrically connected to the wires 43 which pass downwardly through the rod 29 is. revolubly mounted in tube 35, that latter being in turn revolubly mounted in brackets 4-4 on the boiler and in a bearing 45 on the bracket '4, and serves the same purpose as the ordinary hand rail. The rod and tube enter the cab 2 and are provided with hand wheels 46 and 47 respectively, whereby the engineer may turn either the headlight or the reflector, each wheel being provided with a plurality of notches 48, into which the fingers 49 vyieldingly engage to hold the headlight in a certain position.

In order to prevent snow and ice from clogging the mechanism, I have inclosed the bracket 4 by attaching sheet metal plates 50 and 51 to the top and bottom thereof respectively, and by providing the gearing with a housing 52, the top portion 53 of which is removable; the recessed portion 12 of the base 11 preventing anything from entering the bearing upon which the headlight turns.

Under ordinary conditions the headlight and reflector are positioned as illustrated in Figs. III and IV, with the white or transparent lens to the'front and the red and green lenses at the sides as in the ordinary headlight. \Vith my improvements, however, when the locomotive is turning dangerous curves, the engineer may, by manipulating'th'e inner wheel in the cab, turn the headlight so as to throw its rays on the track ahead. If two tracks cross at right angles and two trains are approaching each other, the engineer who reaches the crossing first may signal to the other by turning a red or green light toward the approaching train, and turning the reflector so as to intensify this light.

IVith trains running in sections, it is necessary, at times, for the-sections to side track in order that a limited or express train may pass, and it often happens that when one section side tracks before the other'section is in sight, there is no way of notifying the engineer of a through train which section is on the side track, as 'the small lamps used to indicate such condition are usually obliterated by intense rays of the headlight. 'In order to obviate this disadvantage, the :seetion which would first reach the siding would turn the red light forward to indicate to the limited that the second section was still on the main line, and if both sections were on the siding the green lens would be presented to view. Ifthere was only a single train to be side-tracked the green lightcould be exposed immediately and the engineer of the limited train would.

know that he had a clear track ahead. In entering stations the intense light of an-engine is very confusing, and under such conditions the reflector may be turned to the front of the electric arc, thus almost obliterating the light. \Vith the reflector mounted on the part that carries the lower carbon of an are light, should the carbons fuse, the lower member may be turned to break its connections and restore, the light. uses may be found for the improvements although these mentioned are, perhaps, the

most important.

Having thus described my invention, what- I claim as new therein, and desire to secure by Letters Patent, is

1. A locomotive headlight, comprising a pivotally mounted casing having lenses on different faces, a reflector pivotally mount.-

Other ed within the casing, and separate, manually operable means for revolving the casing and reflector.

:2. A locomotive headlight, comprising a pivotally mounted casing having separate lenses on different faces, a bracket pivotally mounted within the casing and adapted for supporting a lighting member, a" re- Hector mounted on said bracket, and manually operable means for revolving the casing and bracket independently of each other.

3. A locomotive headlight, comprising a pivotally mounted casing having differently colored lenses on separate faces, a bracket pivotally mountedin said casing and adapted for supporting a lighting element centrally thereof, an arm on said bracket, a reflector mounted on said arm,

and separate means for manually actuating connection with said shaft.

5. In a locomotive headlight, a supporting bracket, anupturned boss on said bracket having a central aperture, a bevel gear having a tubular hub revolubly mounted in said aperture, a casing secured to saidtubular hub, a second bevel gear havmg a tubular hub revolubly mounted in the first tubular hub, a yoke secured to the second hub, a lighting element in said casing, a reflector carried by said'yoke, wires connected with said lighting element and passing downwardly through said second tubular hub, a shaft revolubly mounted in said bracket, a tube revolubly mounted on said first named shaft, bevel gears on said shaft and tube for meshing with the first named gears, and hand Wheels having nection with said first named gears for independently actuating the casing and reflector.

In testimony whereof I afiix my signature in presence of two witnesses.

EARL H. MARSHALL.

-Witnesses LEWIS L. MILLER, LETA E. CoA'rs.

gear C011-

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