GB170404A - A carbon monoxide respirator - Google Patents

A carbon monoxide respirator

Info

Publication number
GB170404A
GB170404A GB2178720A GB2178720A GB170404A GB 170404 A GB170404 A GB 170404A GB 2178720 A GB2178720 A GB 2178720A GB 2178720 A GB2178720 A GB 2178720A GB 170404 A GB170404 A GB 170404A
Authority
GB
United Kingdom
Prior art keywords
carbon monoxide
layer
detecting
receptacle
oxidizing
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
GB2178720A
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 GB2178720A priority Critical patent/GB170404A/en
Publication of GB170404A publication Critical patent/GB170404A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B19/00—Cartridges with absorbing substances for respiratory apparatus

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

170,404. Levy, L. A., and Davis, R. H. July 20, 1920. Respirators.-In respiratory apparatus for use in atmospheres containing carbon monoxide, the air is passed through a receptacle enclosing layers of oxidizing and drying agents and a cooling- device, and means are provided for detecting any failure of the oxidizer to retain the carbon monoxide. As shown in Fig. 1, the receptacle a is provided with a layer i of calcium-chloride granules, a layer k of oxidizing-agent acting catalytically such as silver oxide with or without manganese dioxide, another drying-layer l, and in the upper compartment c a cooling-box p containing sodium thiosulphate crystals and a layer q of detecting-substance such as that described in Specification 163,102 wherein iodine is liberated when carbon monoxide is passing. In a modified form, the detecting-material q mav be contained in a separate chamber removably attached to the receptacle a. Other forms of detection may be employed. For example, two platinum, wires may be arranged in separate glass tubes through one of which the treated air flows. By passing an electric current through the wires, any traces of carbon monoxide are shown by increased brightness of the wire exposed to them. A further method consists in causing the evolved carbon monoxide to combine with a substance, for example chlorine, so as to produce an irritant gas as phosgene.
GB2178720A 1920-07-20 1920-07-20 A carbon monoxide respirator Expired GB170404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2178720A GB170404A (en) 1920-07-20 1920-07-20 A carbon monoxide respirator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2178720A GB170404A (en) 1920-07-20 1920-07-20 A carbon monoxide respirator

Publications (1)

Publication Number Publication Date
GB170404A true GB170404A (en) 1921-10-20

Family

ID=10168789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2178720A Expired GB170404A (en) 1920-07-20 1920-07-20 A carbon monoxide respirator

Country Status (1)

Country Link
GB (1) GB170404A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365627A (en) * 1980-09-22 1982-12-28 The Dow Chemical Company Filter-type respirator canister
DE3613512A1 (en) * 1986-04-22 1987-10-29 Auergesellschaft Gmbh WARNING DEVICE TO INDICATE THE EXHAUST OF A POLLUTANT GAS FILTER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365627A (en) * 1980-09-22 1982-12-28 The Dow Chemical Company Filter-type respirator canister
DE3613512A1 (en) * 1986-04-22 1987-10-29 Auergesellschaft Gmbh WARNING DEVICE TO INDICATE THE EXHAUST OF A POLLUTANT GAS FILTER

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