GB398902A - Improvements in and relating to vacuum pumps - Google Patents

Improvements in and relating to vacuum pumps

Info

Publication number
GB398902A
GB398902A GB888032A GB888032A GB398902A GB 398902 A GB398902 A GB 398902A GB 888032 A GB888032 A GB 888032A GB 888032 A GB888032 A GB 888032A GB 398902 A GB398902 A GB 398902A
Authority
GB
United Kingdom
Prior art keywords
valve
pump
moved
relating
vacuum pumps
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
GB888032A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB888032A priority Critical patent/GB398902A/en
Publication of GB398902A publication Critical patent/GB398902A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/02—Liquid sealing for high-vacuum pumps or for compressors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)

Abstract

398,902. Rotary pumps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and WHITAKER, F. P., 237, Clifton Road, Rugby. March 24, 1932, No. 8880. [Class 110 (ii).] The passage between a vacuum pump 2 such as an oil-sealed rotary pump, and a chamber to be evacuated is controlled by a valve 10 operated through links 9, 8 from a member 6 of a fluid clutch. This member is biassed towards the closing position of the valve by a spring 7 and is moved to open the valve by liquid in which it is immersed, set in rotation by a member 5 mounted on the pump shaft or otherwise moved at a rate proportional to the pump speed.
GB888032A 1932-03-24 1932-03-24 Improvements in and relating to vacuum pumps Expired GB398902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB888032A GB398902A (en) 1932-03-24 1932-03-24 Improvements in and relating to vacuum pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888032A GB398902A (en) 1932-03-24 1932-03-24 Improvements in and relating to vacuum pumps

Publications (1)

Publication Number Publication Date
GB398902A true GB398902A (en) 1933-09-25

Family

ID=9861059

Family Applications (1)

Application Number Title Priority Date Filing Date
GB888032A Expired GB398902A (en) 1932-03-24 1932-03-24 Improvements in and relating to vacuum pumps

Country Status (1)

Country Link
GB (1) GB398902A (en)

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