| 摘要 |
1,055,464. Monorail systems. J. W. DARK. Sept. 12, 1963 [Sept. 14, 1962; Oct. 1, 1962], Nos. 35067/62 and 37197/62. Headings B7J and B7L. [Also in Division F2] A monorail system has the monocar supported by the surfaces 9, 10 of rail 6, 7, 8 by pairs of rollers 17 journalled in frames 18 which are connected by pivots 19 to underframe 16, Fig. 3. Drive wheels 21 and stabilizing wheels 26 bear on rail surfaces 11, 12 and flange 8 respectively, the wheels 21 being driven from electric motors the power for which is derived from conductor rails 24 engaged by shoes 25. The rail has a base plate 13 supported on pylons 14 by screw member 15 which can be adjusted to tilt the rail on curves. The running surfaces 9, 10 are of a plastics sheet material, the rollers 17 may be made of nylon. In Fig. 4, the drive wheels 21a are retractable at certain high speeds and the monocar is then propelled by a linear electric induction system comprising copper or aluminium strips 33 on a base 34 and retractable field coils 35 supported on arms 36, 37 on the monocar. A metallic sheet 30 is disposed between a plastics strip 29 and upper rail flange 6a. An earth rail 31 is connected at intervals to a plate 32 beneath the rail; the plate 32 is adjacent the side extensions 22a of the monocar which have an aerofoil undersurface creating an air cushion on movement of the car to relieve the load on rollers 17. The earth sheet 30 acts in conjunction with a sensing device on the monocar to detect flaws in plastics strip 29 by sparking techniques. In Fig. 5 each pair of rollers 17 is supported in a bogie 38 having an arm 40 pivotally connected at 41 to the next bogie. The bogie is formed with a tank 42 containing a cooling and/or lubricating liquid which is discharged through outlet 43 on to the running track. The electric induction propulsion may be replaced by compressed air jets from the monocar being directed into cup-shaped recesses in plates on the rail, Figs. 7, 8 (not shown). The rail lower flange carries brake shoes, Fig. 9 (not shown), which are moved against the monocar for braking (see Division F2). An alternative rail support, Fig. 10, comprises a cap plate 67 fitting over pylon 63 with the interposition of a rubber cushion 68, a plate 71 on the rail 69 being connected to plate 67 by bolts 73, 74, the flanges of plate 71 being angle for tilting the rail on corners. The car can be additionally supported on the rail by cushions of air produced by air jets from nozzles on the car. Air cushions may also separate the coils 35 from strips 33 in Fig. 4. |
