Patent GB-190118498-A (GB)
Title: Improvements in Apparatus for Announcing or Indicating in a Railway or Tramway Vehicle the Names of Stations or other Places.
Inventor: FYFE PAUL PHILIA ICAVILLE
Filed: 1901-09-16
Granted: 1902-03-27
Abstract: 18,498. Fyfe, P. P. I. Feb. 23, [date applied for under Sec. 103 of Patents &c. Act, A.D. 1883]. Indicators, station, stopping-place, and like.-Relates to apparatus for indicating the names of stations, stopping-places, crossings, &c. in railway or tramway cars. The names of the stations &c. are marked successively on plates 60, which are carried by cords &c. 60<a> from the ends of a corresponding series of levers 59, which are normally held up, by springs 61, and by the spring- controlled operating-arms E engaging the cross-bar 58 on the frame 56, 57, so that the indications are not visible. The arms E are connected to the shorter arms 59b of the levers 59, and are each formed with two projecting shoulders or heads adapted to be engaged by the rib 54 on the operating-slide 50, which is operated by the crank-pin 47 on the vertical revoluble shaft 43. Two pitch chains 71, mounted on sprocket-wheels 70, 71<a>, 72 and driven from the spindle 69, are connected by a series of longitudinal bars 74 provided with fingers 75 for depressing the arms E into engagement with the rib 54, these fingers being arranged so that there is one in alignment with each of the arms E, and so that the arms will be operated successively in consecutive order. When an arm E is depressed, the movement of the slide 50 causes the rib 54 first to lower the corresponding indicator plate 60 into view, and then, on the return movement of the slide, to raise the plate again to its normal position. The driving-spindle 69 of the chains 71 is provided, as shown in Fig. 6, with two reversely-arranged ratchet-wheels 90, 91, one or other of which is driven by its pawl 82 or 83 according to the direction of movement of the vehicle, one pawl being operative for the outward and the other for the return journey. The pawls are carried by the same hub, which is pivoted at 84 on a bracket carried by the slide 50, and has an arm 85 engaged by the spring-controlled collars 86 on the spindle 80. By setting this spindle so that the lug 81 on it is either above or below the guidecollar 78, the corresponding pawl 82 or 83 is brought into action. Two similarly - mounted check-pawls 92, 93 are arranged on the opposite side of the ratchet-wheels. The spindle 43 is driven by the spindle 27 from one of the axles C of the vehicle, which axle is provided with a series of serrated or roughened friction-wheels adapted to be engaged by a similar series of friction-wheels carried by the lever 16, the latter wheels being geared to the pinion 26 on the spindle 27. The gear is disconnected so long as the roller 18 on the end of the lever 16 rests in a notch in the disc 29. When the lever 16 is raised by the lever 32 so as to disengage the roller 18, the friction gear is connected, and the spindle 27 is rotated until the roller 18 again enters its notch. In the arrangement shown, the lever 32 is actuated by the engagement of the curved spring shoe D with a fixed trip-pin mounted on the track, but it may be operated by hand, or by steam or air pressure.