GB958801A - Improvements in or relating to leak valves - Google Patents

Improvements in or relating to leak valves

Info

Publication number
GB958801A
GB958801A GB248661A GB248661A GB958801A GB 958801 A GB958801 A GB 958801A GB 248661 A GB248661 A GB 248661A GB 248661 A GB248661 A GB 248661A GB 958801 A GB958801 A GB 958801A
Authority
GB
United Kingdom
Prior art keywords
tube
plate
jan
thin
walled portion
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
GB248661A
Inventor
Eric Arthur Billett
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB248661A priority Critical patent/GB958801A/en
Priority to DE1962U0003414 priority patent/DE1870254U/en
Publication of GB958801A publication Critical patent/GB958801A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
    • H01J49/0495—Vacuum locks; Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/06—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of a screw-spindle, cam, or other mechanical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

958,801. Valves. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 11, 1962 [Jan. 20, 1961], No. 2486/61. Heading F2V. A leak valve comprises a base-plate 1, a tube 3 for flow of gas, the tube having a thin-walled portion 4 of fine bore supported by the plate, and a thrust member 5 mounted from the plate for controlled compression of the thin-walled portion within the elastic limit of the tube to vary the cross-sectional area of the bore. The tube 3 may be of nickel having a portion 4 of 0.1 inch outside diameter with a wall thickness of one to two thousandths of an inch, the flow rate being variable between zero and 0.01 uL/sec. with a pressure drop of 50 mm. of mercury. Axial adjustment of the member 5 is obtained by a screw-threaded connection to a worm drive 13, 18. The valve may be used to regulate the admission of gaseous samples to a mass spectrometer ion source.
GB248661A 1961-01-20 1961-01-20 Improvements in or relating to leak valves Expired GB958801A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB248661A GB958801A (en) 1961-01-20 1961-01-20 Improvements in or relating to leak valves
DE1962U0003414 DE1870254U (en) 1961-01-20 1962-01-16 DEVICE ON FINE CONTROL VALVES OR LEAK VALVES, IN PARTICULAR FOR CONTROLLING VERY SMALL GAS QUANTITIES FOR SPECTROMETERS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB248661A GB958801A (en) 1961-01-20 1961-01-20 Improvements in or relating to leak valves

Publications (1)

Publication Number Publication Date
GB958801A true GB958801A (en) 1964-05-27

Family

ID=9740415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB248661A Expired GB958801A (en) 1961-01-20 1961-01-20 Improvements in or relating to leak valves

Country Status (2)

Country Link
DE (1) DE1870254U (en)
GB (1) GB958801A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133509A (en) * 1982-12-27 1984-07-25 Siegfried Schertler A metering valve
EP3534392A1 (en) * 2018-03-01 2019-09-04 Thermo Fisher Scientific (Bremen) GmbH Inert non-adsorbing crimpable capillaries and devices for adjusting gas flow in isotope ratio analysis

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133509A (en) * 1982-12-27 1984-07-25 Siegfried Schertler A metering valve
EP3534392A1 (en) * 2018-03-01 2019-09-04 Thermo Fisher Scientific (Bremen) GmbH Inert non-adsorbing crimpable capillaries and devices for adjusting gas flow in isotope ratio analysis
GB2571565A (en) * 2018-03-01 2019-09-04 Thermo Fisher Scient Bremen Gmbh Inert non-adsorbing crimpable capillaries and device for adjusting gas flow in isotope ratio analysis
CN110223905A (en) * 2018-03-01 2019-09-10 塞莫费雪科学（不来梅）有限公司 The non-adsorbed rollable capillary of inertia and the device for adjusting gas flow in isotope ratio analysis
GB2571565B (en) * 2018-03-01 2021-05-26 Thermo Fisher Scient Bremen Gmbh Inert non-adsorbing crimpable capillaries and devices for adjusting gas flow in isotope ratio analysis
US11024496B2 (en) 2018-03-01 2021-06-01 Thermo Fisher Scientific (Bremen) Gmbh Inert non-adsorbing crimpable capillaries and devices for adjusting gas flow in isotope ratio analysis
CN110223905B (en) * 2018-03-01 2022-06-07 塞莫费雪科学（不来梅）有限公司 Inert non-adsorbing crimpable capillary tube for isotope ratio analysis and device for regulating gas flow

Also Published As

Publication number Publication date
DE1870254U (en) 1963-04-11

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