GB1221529A - Control valve - Google Patents

Control valve

Info

Publication number
GB1221529A
GB1221529A GB43146/69A GB4314669A GB1221529A GB 1221529 A GB1221529 A GB 1221529A GB 43146/69 A GB43146/69 A GB 43146/69A GB 4314669 A GB4314669 A GB 4314669A GB 1221529 A GB1221529 A GB 1221529A
Authority
GB
United Kingdom
Prior art keywords
valves
feb
pressure fluid
control valve
diaphragm
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
GB43146/69A
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of GB1221529A publication Critical patent/GB1221529A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices

Abstract

1,221,529. Valves. BERGWERKSVERBAND G.m.b.H. 23 Jan., 1968 [2 Feb., 1967 14 Feb., 1967], No. 43146/69. Divided out of 1,221,528. Heading F2V. A control valve for controlling the supply of pressure fluid to an aligning jack of a longwall mining assembly as disclosed in Specification 1,221,528, comprises a housing having an axial bore with oppositely acting valve members 125, 125 therein which are displaceably disposed between an actuating diaphragm 117 and resilient return means 119. The diaphragm is actuated by low-pressure fluid or manually controlled by a button and actuates the valves through a piston and plunger assembly 118, 126, on axially displaceable member 124 being disposed between the two ball valves 125. A series of such control valves may be connected in a block to a T-shaped junction-piece for details of which the Specification Fig. 5, not shown, should be referred to.
GB43146/69A 1967-02-02 1968-01-23 Control valve Expired GB1221529A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEB0091001 1967-02-02
DEB0091168 1967-02-14

Publications (1)

Publication Number Publication Date
GB1221529A true GB1221529A (en) 1971-02-03

Family

ID=25968280

Family Applications (2)

Application Number Title Priority Date Filing Date
GB43146/69A Expired GB1221529A (en) 1967-02-02 1968-01-23 Control valve
GB3457/68A Expired GB1221528A (en) 1967-02-02 1968-01-23 Control arrangement for a hydraulic pit prop support unit

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3457/68A Expired GB1221528A (en) 1967-02-02 1968-01-23 Control arrangement for a hydraulic pit prop support unit

Country Status (3)

Country Link
US (1) US3478522A (en)
FR (1) FR1562062A (en)
GB (2) GB1221529A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1287096A (en) * 1968-10-17 1972-08-31 Karl Maria Groetschel Improvements relating to advancing roof supports for mine workings
FR2056580A6 (en) * 1969-08-06 1971-05-14 Bergwerksverband Gmbh
SU797601A3 (en) * 1970-08-04 1981-01-15 Геверкшафт Эйзенхютте Вестфалия (Фирма) Hydraulic device for control of displaceable support sections in mines
DE3100093A1 (en) * 1981-01-03 1982-08-05 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen DEVICE FOR LIMITING THE REMOVAL RESISTANCE OF A HYDRAULIC REMOVAL PLATE
DE3000237A1 (en) * 1980-01-05 1981-07-09 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen DEVICE FOR SECURING THE CAP TEMPERATURE CYLINDERS A SHIELD REMOVAL RACK AGAINST EXTENSION
DE3141040C1 (en) * 1981-10-15 1983-03-31 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Hydraulic expansion frame
FR2595770B1 (en) * 1986-03-13 1989-12-08 Brev Ind Marine Exploit FLUID SUPPLY DEVICE FOR A HYDRAULIC, PNEUMATIC OR HYDRO-PNEUMATIC SYSTEM
GB2241527A (en) * 1990-02-13 1991-09-04 Gullick Dobson Ltd Mining apparatus and method
CN109736868B (en) * 2018-12-11 2020-07-28 中国矿业大学 Fully mechanized mining face hydraulic support push rod pose sensing device, fully mechanized mining face hydraulic support push rod mechanism and fully mechanized mining face hydraulic support push rod method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383865A (en) * 1965-12-03 1968-05-21 Mastabar Mining Equip Co Ltd Mine roof supports

Also Published As

Publication number Publication date
GB1221528A (en) 1971-02-03
FR1562062A (en) 1969-04-04
US3478522A (en) 1969-11-18

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