GB289633A - Improvements relating to washer boxes for coal and the like - Google Patents

Improvements relating to washer boxes for coal and the like

Info

Publication number
GB289633A
GB289633A GB1112227A GB1112227A GB289633A GB 289633 A GB289633 A GB 289633A GB 1112227 A GB1112227 A GB 1112227A GB 1112227 A GB1112227 A GB 1112227A GB 289633 A GB289633 A GB 289633A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
coal
flap
valve
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1112227A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1112227A priority Critical patent/GB289633A/en
Publication of GB289633A publication Critical patent/GB289633A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • B03B5/10—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on jigs
    • B03B5/24—Constructional details of jigs, e.g. pulse control devices

Landscapes

  • Nozzles (AREA)

Abstract

289,633. Norton, B. April 26, 1927. Valves controlled by pilot or relay valves.- In a coal-washing jig of the kind in which water is caused to pulsate through perforated plating by means of compressed air, the supply of air is automatically regulated in accordance with the supply of coal to the washer box. A relief valve in the air supply pipe is opened when a pivoted flap in the coal shoot falls. The top side of a diaphragm 36 on the spindle of the relief valve 39 is connected to the compressed air supply and the under side is connected with the atmosphere through a pipe 44 and ports 41 when the flap (not shown) is in its raised position. The flap, in falling, raises the pilot valve 40, which closes the ports 41, and connects the under side of the diaphragm to air pressure through pipes 33, 35, and 44. The valve 39 opens as the pressure on each side of the diaphragm equalizes. A delayed action device comprising a bye-pass 51, throttle valve 52, and check valve 53 allows the pressure beneath the diaphragm to rise slowly and fall quickly. In a further modification the lower side of the diaphragm is always connected to atmosphere, and the upper side, which is normally under pressure, is connected to atmosphere when the flap falls.
GB1112227A 1927-04-26 1927-04-26 Improvements relating to washer boxes for coal and the like Expired GB289633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1112227A GB289633A (en) 1927-04-26 1927-04-26 Improvements relating to washer boxes for coal and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1112227A GB289633A (en) 1927-04-26 1927-04-26 Improvements relating to washer boxes for coal and the like

Publications (1)

Publication Number Publication Date
GB289633A true GB289633A (en) 1928-05-03

Family

ID=9980427

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1112227A Expired GB289633A (en) 1927-04-26 1927-04-26 Improvements relating to washer boxes for coal and the like

Country Status (1)

Country Link
GB (1) GB289633A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016819A1 (en) * 1993-01-30 1994-08-04 Ruhrkohle Aktiengesellschaft Jigging sieve with pneumatic valve control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016819A1 (en) * 1993-01-30 1994-08-04 Ruhrkohle Aktiengesellschaft Jigging sieve with pneumatic valve control
AU671188B2 (en) * 1993-01-30 1996-08-15 Ruhrkohle Aktiengesellschaft Jigging sieve with pneumatic valve control
US5740920A (en) * 1993-01-30 1998-04-21 Ruhrkohle Aktiengesellschaft Jigging screen device with pneumatic valve control

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