Switching device for pneumatic conveyance linear motor actuated

Details Switching device for pneumatic conveyance linear motor actuated Switching device for pneumatic conveyance linear motor actuated

1985-03-13

1987-05-05

Reeves, Robert B.

Railways

Turntables

Actuators

104 232, 104 46, 104 47, B61J 106, B60V 114

Patent

active

046622829

ABSTRACT:
A switching device for a transporting track on which a pallet travels supported on a cushion of air which includes a rotatable track having air jets to support the pallet and which is supported on an air bearing, a first linear motor for turning the air bearing, a second linear motor for driving and braking the pallet and a positioning device for accurately positioning the rotatable track in alignment with a fixed regular track. The switching device allows a pallet, which is supported on a cushion of air and which is driven along a fixed track by a linear motor, to be driven in a different direction by stopping the pallet on the rotatable track with a second linear motor, stopping the supply of air to the rotatable track so that the pallet is supported directly on the rotatable track, turning the air bearing and rotatable track with the first linear motor in a desired direction, accurately positioning the rotatable track with the positioner, interrupting the supply of air to the air bearing to prevent further rotation thereof, supplying air to the rotatable track to support the pallet on an air cushion and driving the pallet onto another fixed track with the second linear motor.

REFERENCES:
patent: 3500765 (1970-03-01), Easton et al.
patent: 3540378 (1970-11-01), Giraud
patent: 3616760 (1971-11-01), Lucien et al.
patent: 3822652 (1974-07-01), Burdick et al.
patent: 3830160 (1974-08-01), Maison
patent: 3937431 (1976-02-01), Guntner
patent: 4312276 (1982-01-01), Cory et al.
patent: 4326624 (1982-04-01), Ewertowski et al.
patent: 4346319 (1982-08-01), Naganuma
patent: 4532869 (1985-08-01), Kondo et al.

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