DE112622C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The z. Visible signals currently used on the railways, which pass through during the day their shape or position, at night by differently colored or shaped lights transmit messages to the train crew, as is well known, have the great disadvantage, that their visibility is limited in cloudy or rainy weather, in heavy fog is even completely canceled. At least about the engine driver under such circumstances To be able to communicate in cases of danger, one generally has audible emergency signals Signs introduced by bells, signal horns, popping caps, etc. Not to mention of the fact that cloudy or rainy weather conditions the acoustic effect of some If such signals are greatly impaired, it is also clear that the locomotive crew is involved such signs are easily overheard by the noise of the rolling train. Experience teaches that, in spite of all such measures, accidents often occur in poorly transparent air.

In the following a device is now described which makes it possible, also with to give visible signs to the thickest fog with complete certainty and thereby the use Eliminate the need for unreliable audible signals. The essence of the facility consists in the fact that the light signal on the main mast is drawn from one another into a series of individual lights, which is close to the track to which the signal applies and at the same height as the Eye of the engine driver should be set up in such a way that they are visible to the incoming train send full light.

With a normal entrance signal, the lantern is at a height of about 7 m above the eye of the engine driver and is at least 2.5 m to the side of the track center, usually even further away. Experience has shown that the light of such a lantern is medium Fog only at about 20 m, in the case of very dense fog only at 4 to 5 m and even less to recognize. In the latter case, the reliable differentiation of the color of the light is often very difficult. But always a recognition of the signal will only be possible much too late than a possibly necessary recognition Holding the train before the final mast could be done.

If, however, as shown in FIGS. 1 and 5, the light signal is repeated by setting up lanterns at suitable intervals, approximately level with the driver's eye, and as close as possible to the profile, which will be specified later Always corresponding colors as the main signal show, so the driver is able to recognize the position of the main signal even in the thick of fog. He must - as indicated in Fig. 1, where the line from the path of the locomotive driver's eye represents - after passing the distant signal, drive through the light cones of the repeat lanterns along their entire length before he comes to the main signal. Are now even recommended at particularly dangerous points! The lanterns should be like that

Claims (1)

moved close to each other so that, even before he is out of the light range of one, he already comes into the light cone of the next one, he will have the impression of a long band of light corresponding to the color of the main signal. It is completely different in FIG. 2, which illustrates the relationships that have been customary up to now. There the driver's eye, whose path is again shown by the line from , cuts the cone of light emanating from the signal mast when driving past only on the short distance from c to d, i.e. only sees a single momentary flash of the relatively distant light. It is obvious that in this case there can be no question of the effectiveness of the stop signal. The repeat lanterns can, as they are not associated with an extensive form signal always find their installation in the immediate vicinity of the track, which is the case with the as is well known, this is not always the case with usual signals. Should be next to the one to be backed up A second track is so close that the clear space can be attached to the Repeat lanterns at the height of the engine driver are not permitted, but it is even with a lower installation, as shown in FIG. 4, suitable reflectors are always used allow the fog light signal to have a sufficient effect. It should be expressly noted that the signals described here are inconsistent with those now common pre-signals may be confused, which have a different meaning than that have associated main signal, and which fail in fog as well as the main signal itself. The repetition signals described here are more like relays, so to speak for the mast signal to consider which from time to time those weakened by the fog Reinforce rays. Under certain circumstances it may even appear to be indicated, even before such repeating lanterns are given which show colors corresponding to this, so that the Security can be increased to any desired level. Opposite the audible signals which only come into action when a train is passing have the light signals nor the great advantage that they are also noticed by the marshalling staff, and so on the same to draw attention to expected moves. The practical implementation of the fog light signal is extremely simple when using the Elektricita't. Two or more light bulbs are installed in each lantern, which have colored bulbs corresponding to the apertures of the mast signal. The lamps of the same color are connected by cables and the correspondingly colored lamp type is switched on in a circuit by suitable contacts when the signal is in motion or at a stop. In Fig. 3, the lights r and g are switched on by a contact k, which in the present case is located on the signal wing, but just as well at another point, e.g. B. could be attached to the signal lever. If one wants to increase the optical effect by using sight light, all that is required is a rotating interrupter which, for example, as shown in FIG. 3, can be coupled to a small electric motor. In places where no electricity is available, the fog light signal can come through Petroleum or gas lanterns, similar to those used in the turnouts, are formed. Facing the procession, these lanterns have changing windows with appropriately colored ones Panels whose movement mechanism is mechanically coupled to the signal drive and every time you let the corresponding screen step in front of the light of the lantern. Pa re nt claim: Fog light signal, characterized by the multiple repetition of the on the signal mast located light signal by means of corresponding colors showing lanterns, which are close to the relevant track are set up at an appropriate height, for the purpose of less transparent Air (fog, rain, etc.) the area of visibility of the wing signal on the main mast in the direction of the incoming one To enlarge the train., 1 sheet of drawings.