GB501313A - Improvements in air pumps - Google Patents

Improvements in air pumps

Info

Publication number
GB501313A
GB501313A GB10077/38A GB1007738A GB501313A GB 501313 A GB501313 A GB 501313A GB 10077/38 A GB10077/38 A GB 10077/38A GB 1007738 A GB1007738 A GB 1007738A GB 501313 A GB501313 A GB 501313A
Authority
GB
United Kingdom
Prior art keywords
disc
leather
holes
cup
shaped
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
GB10077/38A
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
Publication of GB501313A publication Critical patent/GB501313A/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)
  • Compressor (AREA)

Abstract

501,313. Air-pumps; valves. MEHLSEN, J. K., and NIELSEN, A. C. April 1, 1938, No. 10077. Convention date, Aug. 21, 1937. [Class 8 (i)] [Also in Group XXIX] A pump piston comprises a cup-shaped leather 11 supported on a disc 12 mounted on the piston rod 4. Holes 13 are provided in the leather to allow air to pass during the suction stroke. A star-shaped disc 8 is held in position by the nut 7. A resilient ring 15 may be used to press the cup leather against the sides of the cylinder and projections 14 may be provided on the disc 12 to seal the holes 13.
GB10077/38A 1937-08-21 1938-04-01 Improvements in air pumps Expired GB501313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK501313X 1937-08-21

Publications (1)

Publication Number Publication Date
GB501313A true GB501313A (en) 1939-02-24

Family

ID=8151155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10077/38A Expired GB501313A (en) 1937-08-21 1938-04-01 Improvements in air pumps

Country Status (1)

Country Link
GB (1) GB501313A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171781A (en) * 1985-01-18 1986-09-03 Christopher Erik Andren Automatic one-way fluid valves
CN107829459A (en) * 2017-11-29 2018-03-23 苏州市职业大学 Selectivity uses the device that sewage is flushing toiler water supply

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171781A (en) * 1985-01-18 1986-09-03 Christopher Erik Andren Automatic one-way fluid valves
GB2205148A (en) * 1985-01-18 1988-11-30 Christopher Erik Andren Automatic one-way fluid valves
GB2205148B (en) * 1985-01-18 1989-06-07 Christopher Erik Andren Automatic one-way fluid valves
GB2171781B (en) * 1985-01-18 1989-06-07 Christopher Erik Andren Automatic one-way fluid valves
CN107829459A (en) * 2017-11-29 2018-03-23 苏州市职业大学 Selectivity uses the device that sewage is flushing toiler water supply
CN107829459B (en) * 2017-11-29 2023-11-14 苏州市职业大学 Device for selectively using sewage to supply water for flushing toilet

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