Improvements in Apparatus for Notifying and Recording the Passing of Railway Signals at Danger.

摘要

791. Thompson, W. P., [Soc. Cousin et Cie.]. Jan. 11. Track apparatus actuating signals on trains; recording signals. - The passing of signals at danger is notified and recorded by the interaction of contacts which operate a whistle or the like and break the circuit of a recording electro - magnet, and the driver is provided with means for recording the time when he saw the signal at danger, and with means for resetting the apparatus. The engine is provided with two pairs of contacts 6, 7 for forward and reverse running, mounted by means of sockets 4, 5 on sleeves a, b, Fig. 2, on a crossshaft 3. The adjacent ends of the sleeves are provided with opposite doubly inclined pieces forming teeth, whereby movement of either contact 6 in one direction moves both sleeves, but in the other causes its sleeve a to move laterally, the lateral movement being transmitted by a ring g and a guide rod h, to an inner crossrod e. The contacts 6 are the only operative contacts, the signals being given when one of the sleeves a is moved laterally, the rod e on t h i s movement withdrawing its end e', Fig. 1, from beneath a spring-pressed piston 10. The piston has a flexible connexion p of the Bowden or like type, to a bell-crank lever n, Fig. 6, pivoted at m1 and normally held by a spring m2. The movement of the lever n causes a nipple 12 to act on a finger 13 to move a slide 14 and cause a flexible transmission q1 to operate a whistle S. The recording-apparatus consists of two styles l, l1, Fig. 10, pressed against a sheet of paper travelling over an intermediate roller i1, the styles being mounted, loose and spring- pressed, on rods t, t1 pivoted to armatures v, v1 of electro-magnets u, u1. The paper is moved at a speed proportionate to that of the engine. The electro-magnet u is in a normally-open circuit which is closed by the driver operating a handle M, Fig. 1, to the position shown in dotted lines in Fig. 6, whereupon a contact 19 on a quadrant 18 bridges contacts 20, 21 in the circuit wire 221 leading from the battery S'. The style then makes a lateral mark on the paper showing the time the driver saw the signal. A nipple 23 on the sector simultaneously acts on a finger 24 on the piece 14, to sound the whistle. The movement of the handle M also presses a nipple 35 under the lever n to lift the piston 10 and allow the end e1 to return beneath it to its normal position. The electro-magnet u1 is in a normally-closed circuit passing through a contact 25 on the piece e', and a contact 26. When the rod e is operated, this contact is broken and the armature r' withdrawn to cause the style l' to make a lateral mark showing the time of actuation. The resetting of the piston 10 again completes this circuit.