GB533206A - Improvements in and relating to pneumatic stoppers for gas mains - Google Patents

Improvements in and relating to pneumatic stoppers for gas mains

Info

Publication number
GB533206A
GB533206A GB28159/39A GB2815939A GB533206A GB 533206 A GB533206 A GB 533206A GB 28159/39 A GB28159/39 A GB 28159/39A GB 2815939 A GB2815939 A GB 2815939A GB 533206 A GB533206 A GB 533206A
Authority
GB
United Kingdom
Prior art keywords
plunger
relating
gas mains
oct
gas
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
GB28159/39A
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.)
JOHAN NICOLAAS BLAAUW
Original Assignee
JOHAN NICOLAAS BLAAUW
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 JOHAN NICOLAAS BLAAUW filed Critical JOHAN NICOLAAS BLAAUW
Publication of GB533206A publication Critical patent/GB533206A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16K7/10—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with inflatable member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

533,206. Stopping gas mains BLAAUW, J. N. Oct. 18, 1939 No. 28159. Convention date, Oct. 25, 1938. [Class 99 (ii)] A stopping device for introduction into a stand-pipe 3 on a gas main comprises a cylinder 9 and a plunger 10 carrying a folded bag 17 which is introduced into the main when the plunger is forced downwards by air pressure. The plunger has a central portion 12 of reduced diameter so that the bag is inflated when the plunger reaches the stop 19 by air passing from the recess 18 through passages 14, 15.
GB28159/39A 1938-10-25 1939-10-18 Improvements in and relating to pneumatic stoppers for gas mains Expired GB533206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL533206X 1938-10-25

Publications (1)

Publication Number Publication Date
GB533206A true GB533206A (en) 1941-02-07

Family

ID=19787167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28159/39A Expired GB533206A (en) 1938-10-25 1939-10-18 Improvements in and relating to pneumatic stoppers for gas mains

Country Status (1)

Country Link
GB (1) GB533206A (en)

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