GB569460A - Improved vacuum or exhaust pump - Google Patents

Improved vacuum or exhaust pump

Info

Publication number
GB569460A
GB569460A GB252944A GB252944A GB569460A GB 569460 A GB569460 A GB 569460A GB 252944 A GB252944 A GB 252944A GB 252944 A GB252944 A GB 252944A GB 569460 A GB569460 A GB 569460A
Authority
GB
United Kingdom
Prior art keywords
pivoted
piston
arms
exhaust pump
base
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
GB252944A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB252944A priority Critical patent/GB569460A/en
Publication of GB569460A publication Critical patent/GB569460A/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

569,460. Exhaust pumps. TURNER, W. Feb. 11, 1944, No. 2529. [Class 8 (i)] A foot-operated exhaust pump consists of a cylinder 1 pivoted to a base 3, an inlet valve 4 and an outlet 6 on opposite sides of a piston 7. A hat leather packing 9 within retaining ring 11 serves to seal the piston rod, the upper end of which is pivoted at 14 to the two arms of a foot lever 12, ,which arms are pivoted to the base and linked together at their upper ends by a pedal 13. Compression spring 15 maintains the piston normalty at the top of its stroke. The inlet valve 4 is of the. ball type and is normally maintained closed by a weak spring 5 of such weight that the valve still remains operable by the residual pressure of the rear exhausted vessel attached.
GB252944A 1944-02-11 1944-02-11 Improved vacuum or exhaust pump Expired GB569460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB252944A GB569460A (en) 1944-02-11 1944-02-11 Improved vacuum or exhaust pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB252944A GB569460A (en) 1944-02-11 1944-02-11 Improved vacuum or exhaust pump

Publications (1)

Publication Number Publication Date
GB569460A true GB569460A (en) 1945-05-24

Family

ID=9741176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB252944A Expired GB569460A (en) 1944-02-11 1944-02-11 Improved vacuum or exhaust pump

Country Status (1)

Country Link
GB (1) GB569460A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265673A (en) * 1992-03-26 1993-10-06 Luke Frank Wright Pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265673A (en) * 1992-03-26 1993-10-06 Luke Frank Wright Pump
GB2265673B (en) * 1992-03-26 1995-10-18 Luke Frank Wright Pump

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