DE28423C - Device for signaling the cutting of points - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 20: Railway operations.

Patented in the German Empire from aa. December 1883.

With centralized switch safety devices it is necessary to have security and control devices that allow the Disturbance caused by the cutting open of a switch in the centralized system Personnel in the Weichenthurm, on the station square and possibly also in the traffic bureau display safely and automatically.

To prevent the whole apparatus from being destroyed when the switches are cut open, the latter has hitherto been constructed in such a way that the damage is lost limited only to an easily replaceable part (screw, bolt or pin). Just this damage to a certain part now becomes acoustical production here too and optical signals are used. The acoustic signal consists of a break through of the mentioned constituent caused an explosion of a petard, while the optical Signal is given in such a way that as a result of the break in question and the at Cutting open the switch taking place displacement of the drawbar a thinned Line containing air is interrupted, with which a gasometer-like vessel communicates.

In the accompanying drawing, bolts a ^{in Fig. 1} and 2, α 1 in Fig. 3 and 4, a ² in Fig. 10 and 11 and screws, S and S ¹ in Fig. 5 and 6 either by screwing in or as a result of manufacture brought into tubular shape to such a cross-section that they are sheared off when the switch in question is cut open, the parts previously connected by these bolts or screws sliding over one another.

In the arrangement shown in Fig. 1 and 2 when shearing off the screwed bolt a by a tooth s attached to the eye of the pull rod ζ , which engages in a section of the two-armed lever G above the pivot pin b of the same, this lever violently after the one or turned to the other side. One or the other arm strikes the relevant one of the two petards P or P ¹ attached to the bottom of the drawbar fork, so that it explodes, and at the same time the pin h or A ¹ attached to the same side is pushed downwards by this lever arm . This pin zerreifst or break under the linkage fork hinlaufende, closed at one end and another end by its ν with the pneumatic signal apparatus, Fig. 8 and 9, communicirende pipe R which contains rarefied air.

The in the switch booth (see Fig. 12 and 13) attached pneumatic signaling apparatus, Fig. 8 and 9, consists of an open-topped, water-filled vessel A, in which a second open-bottomed vessel A ¹ (bell) in the manner of a Gasometer floats. A rubber hose ν ¹ extending from the bottom of the vessel-yi , the upper end of which is provided with a float χ , forms the end of the tube v. If a valve attached to the top of the bell A ¹ at y is opened, this bell can be pressed down to the bottom of the vessel A , the water in both vessels assuming the same level. If you then close valve y and raise the bell A '

At a certain height, the pressure of the outside air on the water level in the vessel A in the bell A ^{1 will} be balanced by a water column of a certain height above which the air is correspondingly diluted. In this position the bell ^ ¹ is balanced by a signal board T , which is connected to the bell by a cord running over several pulleys and, under normal conditions, hangs behind a screen W. If, as a result of the penetration of the tube R, air of atmospheric tension comes under the bell, the difference in level is equalized and the bell A ¹ rises, so that the signal board T sinks and becomes visible to the switch attendant.

As can be seen from FIGS. 8 and 9, when the board T sinks down, one of the rollers can also set a bell L in motion.

In Fig. 3 and 4 the hollow bolt a ¹ contains the petard / and the tearing or breaking of the tube R occurs through one of the steel noses G of the hub N moved by the tie rod head.

In the case of the arrangement shown in FIGS. 5, 6, 12 and 13, the closed end of the tube R is sheared off simultaneously with the screws SS ^{1 of} the end compensator E containing the petards p and / ^1.

Finally, the hollow bolt a, FIG. 7, containing a petard / is connected by a hose R ¹ to the line leading to the pneumatic signaling apparatus. Its shearing off will therefore always be accompanied by an acoustic and an optical signal.

In Fig. 10 and i'i is that in the foregoing The arrangement described with reference to FIGS. 3 and 4 in connection with a switch bolt shown.

When the switch attendant sees the "Halt" signal, he has all signals on "Halt" and must not pull a signal to "free" until the cause of the fault has been determined and everything is back in working order.

Claims (3)

Patent-to sayings: 1. An optical signal to indicate the cutting open of a switch, consisting of the screwed bolt a inserted into the linkage, which is either hollow and directly connected to the evacuated tube ν , Fig. 5 to 7, or by means of the lever G, Fig. 1 to 4, when it breaks a destruction of the tube ν respectively. R is to cause, in combination with the submerged bell y, Fig. 8, and the signal panel E. 2. In combination with the subject matter of claim 1. bezw in the hollow bolt a. 5 inserted popping cartridges /, Fig. 4 to 7, or the popping cartridges attached under G R, Fig. Ι to 4. 3. In combination with the subject matter of claim 1. the chime L operated by the cord y E , FIGS. 8 and 9. 1 sheet of drawings.