Railways – Fluid supported car or simulated aerial vehicle
Patent
1975-08-21
1977-01-11
Spar, Robert J.
Railways
Fluid supported car or simulated aerial vehicle
104134, B61B 1308
Patent
active
040021246
ABSTRACT:
A tracked air cushioned vehicle system comprising an inverted channel section track and a vehicle body suspended from a lift platform guided by end bogies. The platform and bogies define a chamber with the track, which chamber is maintained at subatmospheric pressure. The chamber is divided longitudinally into two separate subchambers, the dividing member including sealing members cooperating with the track and a gravitationally displaceable member is provided which is responsive to any lateral force exerted on the body except those due to centrifugal action, to cause a differential pressure between the subchambers for causing a rolling moment to be applied to the platform to counteract the lateral force. The dividing member may include a longitudinal flange depending from the roof of the track or a beam extending between the bogies and a flexible member extending longitudinally of the platform between the beam and the platform. A damped pendulum or a lateral accelerometer may be used to control the differential pressure.
REFERENCES:
patent: 2971499 (1961-02-01), Curlett
patent: 3559759 (1971-02-01), Hart
patent: 3575115 (1971-04-01), Giraud
patent: 3727573 (1973-04-01), Prohaska
patent: 3797398 (1974-03-01), Bliss
patent: 3835952 (1974-09-01), Croix-Marie et al.
Bliss Pendair Limited
Reese Randolph A.
Spar Robert J.
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