(19)
(11) EP 0 271 258 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.10.1988 Bulletin 1988/40

(43) Date of publication A2:
15.06.1988 Bulletin 1988/24

(21) Application number: 87310432

(22) Date of filing: 26.11.1987
(84) Designated Contracting States:
DE FR NL

(30) Priority: 11.12.1986 GB 8629647

(71) Applicant: WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED
 ()

(72) Inventors:
  • Bye, Leonard James
     ()
  • Small, Steven Alan
     ()

   


(54) A device for ejecting granular or particulate material


(57) A device (18) for ejecting granular or particulate material from supply means (20), comprises an elongate body (3/6/7) for through flow of the material, a nozzle (10) defining within the body (3/6/7) an air gap, and means (4/5/6) whereby air can be supplied to the air gap and as a result of the Venturi effect created thereby in the device flow of material through the device is enhanced or enabled. The device is provided with a bleed arrangement (22/23/21) for bleeding air to the material from the supply to the air gap before the material reaches the air gap. Bleeding air from the supply to the air gap to the material before it reaches the air gap can improve the flow of material through the device.







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