GB488173A - An anti-waste cock - Google Patents

An anti-waste cock

Info

Publication number
GB488173A
GB488173A GB267338A GB267338A GB488173A GB 488173 A GB488173 A GB 488173A GB 267338 A GB267338 A GB 267338A GB 267338 A GB267338 A GB 267338A GB 488173 A GB488173 A GB 488173A
Authority
GB
United Kingdom
Prior art keywords
valve
return
diaphragm
valves
chamber
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
GB267338A
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.)
PETER ULDALL
Original Assignee
PETER ULDALL
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 PETER ULDALL filed Critical PETER ULDALL
Priority to GB267338A priority Critical patent/GB488173A/en
Publication of GB488173A publication Critical patent/GB488173A/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
    • F16K21/00—Fluid-delivery valves, e.g. self-closing valves
    • F16K21/04—Self-closing valves, i.e. closing automatically after operation
    • F16K21/06—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening
    • F16K21/12—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening with hydraulically-operated opening means; with arrangements for pressure relief before opening

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

488,173. Valves. ULDALL, P. Jan. 27, 1938, No. 2673. Addition to 446,040. [Class 135] A pump-actuated draw-off tap has a lift valve member connected to an actuating diaphragm 16 backed by a cup-shaped washer 15 by a cotter pin 18 engaging the valve stem. The diaphragm is held against a shoulder on the casing by a lower chamber 8, provided in its upper wall 9 with a seat for a non-return loose-ball valve 10. The pump plunger 12 which is reciprocated by a hand lever 13 is slidably mounted in an upper chamber 7 provided in its upper wall with seats for four non- return loose-ball valves 11. The two chambers which are secured in position by a screwed plug 22 are spaced away from the main casing to leave a discharge clearance 5 connected by a hole 4 with the main conduit 6. As the lever is operated, water in the chamber 8 is withdrawn through non-return valve 10 and discharged through non-return valves 11 thus causing a reduction of pressure above the diaphragm 16 which opens the valve 17.
GB267338A 1938-01-27 1938-01-27 An anti-waste cock Expired GB488173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB267338A GB488173A (en) 1938-01-27 1938-01-27 An anti-waste cock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB267338A GB488173A (en) 1938-01-27 1938-01-27 An anti-waste cock

Publications (1)

Publication Number Publication Date
GB488173A true GB488173A (en) 1938-07-01

Family

ID=9743749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB267338A Expired GB488173A (en) 1938-01-27 1938-01-27 An anti-waste cock

Country Status (1)

Country Link
GB (1) GB488173A (en)

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