GB200016A - Improvements in or relating to pumping apparatus - Google Patents

Improvements in or relating to pumping apparatus

Info

Publication number
GB200016A
GB200016A GB2926422A GB2926422A GB200016A GB 200016 A GB200016 A GB 200016A GB 2926422 A GB2926422 A GB 2926422A GB 2926422 A GB2926422 A GB 2926422A GB 200016 A GB200016 A GB 200016A
Authority
GB
United Kingdom
Prior art keywords
pump
tank
liquid
pipe
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
GB2926422A
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.)
Nash Engineering Co
Original Assignee
Nash Engineering Co
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 Nash Engineering Co filed Critical Nash Engineering Co
Priority to GB2926422A priority Critical patent/GB200016A/en
Publication of GB200016A publication Critical patent/GB200016A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F04D9/041—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock the priming pump having evacuating action

Abstract

200,016. Wade, H., (Nash Engineering Co.). Oct. 26, 1922. Pumping machines; starting, facilitating.- Where a centrifugal pump 15 is placed above the level of the liquid to be pumped, a gas and liquid separating chamber 16 is arranged on the intake side of the pump and an air pump 18 is mounted on the shaft 19 of the liquid pump 15 to withdraw gas from the chamber to prime the liquid pump. The lower end of the conduit 12 carries a screen 13 submerged in the tank 10 and its upper end communicates with the separating chamber 16. The discharge of the liquid pump passes through the pipe 14 to the tank 11. The electric motor 20 drives both pumps. A float 32 in the tank 10 moves on a rod between stops 34; it engages the upper stop to close the switch 31 to start the motor and engages the lower stop to break the motor circuit. When the motor starts, the air pump draws air from the chamber 16 through a restricted orifice 22 and the connection 21 so that water rises in the pipe 12 to prime the pump 15. The tank 24 receives the discharge from the air pump and water flows back through the pipe 26 from the tank to keep the air pump primed.
GB2926422A 1922-10-26 1922-10-26 Improvements in or relating to pumping apparatus Expired GB200016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2926422A GB200016A (en) 1922-10-26 1922-10-26 Improvements in or relating to pumping apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2926422A GB200016A (en) 1922-10-26 1922-10-26 Improvements in or relating to pumping apparatus

Publications (1)

Publication Number Publication Date
GB200016A true GB200016A (en) 1923-07-05

Family

ID=10288766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2926422A Expired GB200016A (en) 1922-10-26 1922-10-26 Improvements in or relating to pumping apparatus

Country Status (1)

Country Link
GB (1) GB200016A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776758A (en) * 1987-07-06 1988-10-11 Kamyr Ab Combined fluidizing and vacuum pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776758A (en) * 1987-07-06 1988-10-11 Kamyr Ab Combined fluidizing and vacuum pump

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