GB1239274A - - Google Patents

Info

Publication number
GB1239274A
GB1239274A GB1239274DA GB1239274A GB 1239274 A GB1239274 A GB 1239274A GB 1239274D A GB1239274D A GB 1239274DA GB 1239274 A GB1239274 A GB 1239274A
Authority
GB
United Kingdom
Prior art keywords
valve
line
ram
pressure
open
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
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
Priority claimed from DE19681583802 external-priority patent/DE1583802B1/en
Application filed filed Critical
Publication of GB1239274A publication Critical patent/GB1239274A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/07—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of fluid pressure

Abstract

1,239,274. Valves. KLOCKNER WERKE A.G. 18 Oct., 1968 [19 Oct., 1967; 20 Feb., 1968], No. 49539/68. Heading F2V. A valve comprises a length of elastic tube 3, Fig. 1, having its ends tightly held in a casing 1 and a deformable closure member 10 formed integrally with the tube, one or more passages 20, 21 in the closure member being restricted or closed when fluid pressure is applied to the external surface of the tube. 0-rings 2 are inserted between flanges 6, 7 on covers 4, 5 held by tie-bolts against the ends of the casing 1. The parts of the valve may be made from synthetic plastics material. A valve 130, Fig. 8 (not shown), of this type and a valve 131 of the type described in Specification 1,239,275 may be used to control a ram 134. When the valve 131 is open, pressure in a branch pipe 138 closes the valve 130 and fluid is supplied by a pump 132 to the ram. Closure of the valve 131 opens the valve 130 to connect the ram 134 to exhaust 136. A valve 117 of the type shown in Fig. 1 may be controlled by two further valves of the same type to connect a pump 115, Fig. 5 (not shown), to a pit prop or ram. The valve 117 is closed while low-pressure servo fluid is applied to it from a line 120 through the valve 118 and a line 125. To open the valve 117, pressure is applied to a line 124 and withdrawn from a line 121 to close the valve 118 and open the valve 119 which connects the line 125 to exhaust 123.
GB1239274D 1967-10-19 1968-10-18 Expired GB1239274A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1583110 1967-10-19
DE19681583802 DE1583802B1 (en) 1968-02-20 1968-02-20 Control valve for pressure sequencing of hydraulic longwall construction in mining

Publications (1)

Publication Number Publication Date
GB1239274A true GB1239274A (en) 1971-07-14

Family

ID=25753244

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1239275D Expired GB1239275A (en) 1967-10-19 1968-10-18
GB1239274D Expired GB1239274A (en) 1967-10-19 1968-10-18

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1239275D Expired GB1239275A (en) 1967-10-19 1968-10-18

Country Status (2)

Country Link
FR (1) FR1585830A (en)
GB (2) GB1239275A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730635A (en) * 1987-08-19 1988-03-15 Hall Surgical Valve and method

Also Published As

Publication number Publication date
GB1239275A (en) 1971-07-14
FR1585830A (en) 1970-01-30

Similar Documents

Publication Publication Date Title
IE35083B1 (en) Improvements in controls for valves
SE402968B (en) FLOW CONTROL VALVE FOR A GAS OR CLEANER LINE FOR LIMITING THE PRESSURE DROP OVER THE VALVE
IE42744L (en) Valves
ES405914A1 (en) Valve seal construction
GB1237139A (en) Self-sealing valve assembly
GB1350379A (en) Non-return fluid-flow valves
GB1332394A (en) Valve for use as a pressure equalizer in pneumatic systems
GB1239274A (en)
GB1206721A (en) Improvements in or relating to pressure limiting devices
GB1346712A (en) Combined cut-off and drain valve assembly
GB1313590A (en) Two-stage pressure-reducing valve
GB1249963A (en) Multiway valve
GB1276041A (en) Improvements relating to fluid flow control valves
GB968132A (en) By-pass gate valve for use with main gate valve
GB1307402A (en) Flow control valve
SU501237A1 (en) Electro-pneumatic valve
GB1448024A (en) Drain valve
GB865943A (en) Improvements in or relating to valves for controlling fluid flow
GB1414838A (en) Stop valves
GB1188508A (en) Improvements in or relating to Rapid Air Relief Valves
GB1135811A (en) Improvements in butterfly valves
GB1251610A (en)
GB1162760A (en) Rotatable Plug Valves
GB941758A (en) Automatically actuated fluid flow shut-off valve
SU968550A1 (en) Valve gate assembly

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees