US1658316A

US1658316A - Railway signal

Info

Publication number: US1658316A
Application number: US154878A
Authority: US
Inventors: Wickeland Johann
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-02-16
Filing date: 1926-12-15
Publication date: 1928-02-07
Anticipated expiration: 1945-02-07

Description

J. WiCKELAND RAILWAY SIGNAL v Filed Dec. 15. 1926 J72 ven'for' Jfiann ZJZk/reland Patented Feb. 7, 1928 1 1 UNITED mm .rona'nn WICKELAND, or BLUMEIlTHAL, GERMANY.

RAILWAY SIGNAL.

Application filed December 15, 1926, Serial No. 154,878, and in Germany February 16, 1925.

This invention relates to a railway signaling device and consists in the provision of a stationary search-light and of reflectors arranged in the engine so as to catch the light- 5 rays and illuminate the drivers cabwith the same. I

The search-light is preferably suspended over the track and provided with means for throwing light perpendicularly on to the 1 track aswell as obliquely thereto. By this arrangement a repetition of signals will be obtained which cannot fail toattract the drivers attention.

Fig. l of the accompanying drawings represents a side view of the search-light arrangement,

Fig. 2, a view at right angles toFig. 1, Fig. 3, a view showing the effect on the en ine of the vertical light-rays,

ig. 4, a view showing the eflect ofoblique light-rays on an advancing engine, and

Fig. 5, a View showing the efl'ect of oblique rays on an engine which has passed the search-light.

Erected at the sideof the railway track I) is a mast 0 having an arm at which overhangs the track so that it can be used as a means for suspending a search-light a over the.

track at a suificient height above the latter 80 for being clear of thetraflic. The railway engine 9 is provided witha suitable arrange ment of reflectors adapted to catch the rays of the search-light and illuminate the drivers cab therewith asa warning to the driver.

The searchlight a consists of a double pro.- jector containin projector comprising light beam pro ectors e and 6' arranged at an angle to each other. The projector e is disposed to project a light 40 beam perpendicularly straight down onto the railway track while the projector 6' 1s disposed to project an oblique beam downwar'dly onto the track in the direction of the track.

ble projector arrangement described it will be'seen, p r strikes the reflector an incident light flash will be reflected into the cab, one of the flashes being short and followed by the other and longer one, or vice versa, according to .the direction oftravelof the locomotive alongthe track or the arrangement of the a' source of light f, said By reason of the oblique reflector and douprojector elements as desired with respect to up and down traveldirections. These signal his train under control before the short flashis given, which may be a warning at a certain distance from the station that at this point the train speed, if not reduced below normal running speed, should be reduced to a certain speed; or the short flash may first be given as a caution or warning signal followed by the long flash which may be of such duration as to obviate the possibility of the engineer ignoring it if he has ignored the short signal. Of course, the signals may be given other significancies and by disposing the projector e to project the oblique beam so as to strike the reflecting mirror at any given distance from the mast the length? of the beamand time duration'of the long flash may be varied as desired.

Fig. 3 shows an engine reflector h arranged so as to catch the perpendicular lightrays for illuminating the cab. Fig. 4 shows a reflector 11 for dealing with oblique rays thrown against an advancing train, and Fig. 5, areflector k which catches oblique. rays received from behind the engine. repetition of signals may be given to ensure the drivers attention, and both signals may bright white light, strong enough to penetrate a fog, may be used as a stop signal, and a coloured light may be used to indicate that the line is clear. also, that each time a light beam.

I claim:' g

In a railway signaling device, a locomotive carrying alight reflector arranged at an oblique angle hetweenthe vertical and horizontal for reflectinglig'ht beams from a relative lyelevate'd external source into the cab thereof, and signal projecting means comprising Thus a I a mast alongside the track, an arm extending from the mast and overhanging the track, and a double projector on said arm and above the track and comprising a pair 5 of projectors arranged for casting light beams at an angle to each other, one vertically down upon the track and the other obliquely downward in a direction longitudinally of the track so as to be intercepted by said light reflector to respectively reflect relatively short and long flashes from said beams into the cab in the travel of the locomotive along the track.

I J OHANN WICKELAND.