GB177033A - Testing apparatus for breathing appliances - Google Patents

Testing apparatus for breathing appliances

Info

Publication number
GB177033A
GB177033A GB691321A GB691321A GB177033A GB 177033 A GB177033 A GB 177033A GB 691321 A GB691321 A GB 691321A GB 691321 A GB691321 A GB 691321A GB 177033 A GB177033 A GB 177033A
Authority
GB
United Kingdom
Prior art keywords
breathing
testing apparatus
appliances
tube
plate
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
GB691321A
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 GB691321A priority Critical patent/GB177033A/en
Publication of GB177033A publication Critical patent/GB177033A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B27/00—Methods or devices for testing respiratory or breathing apparatus for high altitudes

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

177,033. Macaskill, D. March 2, 1921. Testing efficiency of breathing appliances. - Breathing-apparatus such as those in mine rescue helmets are tested for leakage by means of a tube k joined to a pressure supply or a vacuum and fitted with a tap l and a gauge m. The mouthpiece is clamped by a plate e with studs i and fly-nuts to a plate f on the tube k chambered to take the usual teeth pads d.
GB691321A 1921-03-02 1921-03-02 Testing apparatus for breathing appliances Expired GB177033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB691321A GB177033A (en) 1921-03-02 1921-03-02 Testing apparatus for breathing appliances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB691321A GB177033A (en) 1921-03-02 1921-03-02 Testing apparatus for breathing appliances

Publications (1)

Publication Number Publication Date
GB177033A true GB177033A (en) 1922-03-23

Family

ID=9823106

Family Applications (1)

Application Number Title Priority Date Filing Date
GB691321A Expired GB177033A (en) 1921-03-02 1921-03-02 Testing apparatus for breathing appliances

Country Status (1)

Country Link
GB (1) GB177033A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420372A (en) * 1944-06-29 1947-05-13 Air Reduction Leak tester for therapeutic masks
US2457713A (en) * 1945-03-24 1948-12-28 Osborne Ronald Roy Apparatus for testing the operation of oxygen supply equipment for aircraft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420372A (en) * 1944-06-29 1947-05-13 Air Reduction Leak tester for therapeutic masks
US2457713A (en) * 1945-03-24 1948-12-28 Osborne Ronald Roy Apparatus for testing the operation of oxygen supply equipment for aircraft

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