1
Robert M Empey: Hopper gate for self-unloading ships. Allis Chalmers Corporation, Robert C Sullivan, January 25, 1977: US04004700 (68 worldwide citation)

A belt feeder gate for use in self-unloading ships of the type in which the hold of the ship is provided with a hoppered bottom including a plurality of hoppers overlying an unloading conveyor belt moving lengthwise of the ship. Each open hopper bottom is closed by a gate comprising two wheeled gate ...


2
Empey Robert M: Guichet de tremie pour navires autodechargeurs, Hopper gate for self-unloading ships. Allis Chalmers Canada, January 30, 1979: CA1047431

ABSTRACT OF THE DISCLOSURE A belt feeder gate for use in self-unloading shipsof the type in which the hold of the ship is provided with ahoppered bottom including a plurality of hoppers overlying anunloading conveyor belt moving lengthwise of the ship. Eachopen hopper bottom is closed by a gate comp ...