VELAC

POWER SUPPLIES; CAR RETARDER SYSTEMS; AUTOMATIC SWITCHING SYSTEMS; CAR RETARDERS; AND CLASSIFICATION YARD CONTROL MACHINES

CAR RETARDER VALVES

APPARATUS FOR RAILWAY CLASSIFICATION YARD NAMELY, AUTOMATIC TRACK SWITCHING SYSTEMS, ROLLING RESISTANCE RECORDING AND STORAGE UNITS, TRACK CAPACITY EQUIPMENT, LEAVING VELOCITY COMPUTING EQUIPMENT, INFORMATION STORAGE AND TRANSFER EQUIPMENT, ROLLING RESISTANCE MEASURING, STORAGE AND TRANSFER EQUIPMENT, VOLTAGE SUMMING PANELS, INFORMATION READOUT PANELS, SPEED SELECTION PANELS, SPEED CHECK PANELS, SPEED STORAGE PANELS, CURVED TRACK ROLLING RESISTANCE COMPUTERS, COMPUTER RATIO PANELS, SPEED CONTROL APPARATUS, COORDINATOR UNITS, AUTOMATIC RETARDER CONTROLS, VELOCITY METERS AND CLASSIFICATION YARD CONTROL MACHINES