AIR-CUSHIONED SUPPORT Russian patent published in 1995 - IPC

FIELD: transport. SUBSTANCE: support has a casing with a nipple to supply compressed air, flexible diaphragm and a pressure switch, whose inlet is connected to the air cushion zone through a pulse tube. The pressure switch outlet is connected to the control chamber of the distributor, whose first line is connected to the compressed air source, the second line - to the atmosphere, and the third and fourth outlet lines are connected to the respective pressure-reducing valves. In one position the distributor connects the first line to the third one, the second line - to the fourth one, and in the other position it connects the first line to the fourth one, and the second line - to the third one, the outlets of the latters being connected to the support nipple through check valves. EFFECT: automatic disconnection and connection of compressed air supply to the support when it passes over the slot. 2 cl, 3 dwg