Patent GB-191223702-A (GB)
Title: Improvements in or relating to Means or Apparatus for Preventing the Collision of Railway Trains.
Inventor: MORS CHARLES
IPC: B61L3/04
Filed: 1912-10-17
Granted: 1913-10-16
Abstract: 23,702. Mors, C. Oct. 17. Mechanical systems, automatic ; track apparatus actuating signals on and other than on trains.- For preventing collisions between trains, two sets of interconnected track contacts are provided, together wich two different engine contacts, one of which may be operated to apply the brakes &c., if the corresponding track contact is locked. At intervals midway between the track rails are pivoted levers 11, Fig. 5, having wings 15, 16 arranged over a turntable 3 under guides 8 of a casing 1. The turntable has two slots 5, of which one registers with one of the wings 15, 16. The turntable is operated by wires connected to pins 17, 18 so that the lever 11 may be locked or unlocked for movement in the direction of travel when engaged by the engine contact 19. Arranged on opposite sides of the track in front of and behind the contact 11 are four-armed contact-wheels 24, Fig. 9, on rods 23 which carry pinions 25. Carried on a slide 26 are pinions 28, 30 adapted to mesh alternatively with the pinion 25 when the slide is moved by the bell-crank lever 32. The wheel 30, when driven, actuates a bell 30<1> or shows a warning- light. This wheel may be omitted. The engine contacts consist of arms 19 loosely connected to central rods 43, Fig. 11, pivoted between curved vertical plates 41 and connected to pivoted pawls 44 held up by springs 46 and normally holding hooked bars 47 against their springs 49, The bar 47 has connexions 51, 52 to a hand-lever 55 and a block 56 sliding in the starting-handle quadrant 57. On each side of the engine and guard's van are four contacts 60 for operating the wheels 24, the opposite sets being used for opposite directions of running. Fig. 1 shows the track arrangement. A pin 29 on the wheel 28 of the contact A is connected to the pin 17 of the contact E, the pin 18 being connected to the pin 29 of the contact B. The arms of the bell-crank 32 of the contact A are connected to the pins 29 of the contacts B, D. The other contacts are similarly connected. A train reaching the contact A actuates the wheel 24 to turn the pinion 28 and turntable 3 to unlock the lever 11 at the contact E by bringing the slot 5 into register with the wing 15. The lever 11 is then moved over, and the train passes to the contact B, the arms 24 of which are actuated by levers 60 on the guard's van to turn the wheel 28, which locks the lever 11 and pulls over the lever 32 at contact A to disengage the wheels 25, 28. These wheels are re-engaged when the train passes the contact D. If another train reaches the contact A before resetting, it does not unlock the contact E, and its lever 19 is actuated to release the bar 47 to cut off steam or to apply the brakes and give an audible signal. With double-track running, the slides of the contacts B, D are not required and may be omitted, and in single-track working, the contact A is connected to the contact F to lock that lever when the contact E is unlocked. The contacts B, D will then be wired similarly to the contacts A, C.