GB526507A - Improvements in condensation vacuum pumps - Google Patents

Improvements in condensation vacuum pumps

Info

Publication number
GB526507A
GB526507A GB868139A GB868139A GB526507A GB 526507 A GB526507 A GB 526507A GB 868139 A GB868139 A GB 868139A GB 868139 A GB868139 A GB 868139A GB 526507 A GB526507 A GB 526507A
Authority
GB
United Kingdom
Prior art keywords
pump
pipe
vacuum
fore
case
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
GB868139A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB868139A priority Critical patent/GB526507A/en
Publication of GB526507A publication Critical patent/GB526507A/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
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F9/00—Diffusion pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

526,507. Condensation vacuum pumps. BANCROFT, F. E., MILLER, C. W., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 18, 1939, No. 8681. [Class 71] In a condensation vacuum pump for operation with a liquid having a vapour pressure considerably lower than that of mercury, the vapour reception space between the let and the forevacuum pipe, in the case of a single let pump, or between the lowermost jet 6 and the fore-vacuum pipe 10, in the case of a multi-jet pump, as shown, is restricted by a baffle 12 between the hot vapour uptake pipe 3 and the condenser surface 8. The baffle 12 and the pins 15 or other means supporting it may be of a material of relatively low thermal conductivity, and its end 14 may be flared and extend below the fore-vacuum pipe 10. The pump may have a liner 11, as described in Specification 523,688, the entry mouth 16 of the liner having an increased flare. The invention may be applied to the pump described in Specification 346,293. in which case the baffles which are secured to the uptake pipe below the fore-vacuum pipe may be omitted.
GB868139A 1939-03-18 1939-03-18 Improvements in condensation vacuum pumps Expired GB526507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB868139A GB526507A (en) 1939-03-18 1939-03-18 Improvements in condensation vacuum pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868139A GB526507A (en) 1939-03-18 1939-03-18 Improvements in condensation vacuum pumps

Publications (1)

Publication Number Publication Date
GB526507A true GB526507A (en) 1940-09-19

Family

ID=9857169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB868139A Expired GB526507A (en) 1939-03-18 1939-03-18 Improvements in condensation vacuum pumps

Country Status (1)

Country Link
GB (1) GB526507A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5700134A (en) * 1995-03-03 1997-12-23 The Boc Group Plc Diffusion pumps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5700134A (en) * 1995-03-03 1997-12-23 The Boc Group Plc Diffusion pumps

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