GB191321098A - Improvements relating to Respiratory Apparatus for use in Rescue Operations. - Google Patents

Improvements relating to Respiratory Apparatus for use in Rescue Operations.

Info

Publication number
GB191321098A
GB191321098A GB191321098DA GB191321098A GB 191321098 A GB191321098 A GB 191321098A GB 191321098D A GB191321098D A GB 191321098DA GB 191321098 A GB191321098 A GB 191321098A
Authority
GB
United Kingdom
Prior art keywords
use
improvements relating
mask
respiratory apparatus
valve
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.)
Pending
Application number
Inventor
James Frederick Scott
Hezekiah Davenport
Original Assignee
James Frederick Scott
Hezekiah Davenport
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 James Frederick Scott, Hezekiah Davenport filed Critical James Frederick Scott
Priority to GB191321098T priority Critical
Application granted granted Critical
Publication of GB191321098A publication Critical patent/GB191321098A/en
Application status is Pending legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02Masks
    • A62B18/025Halfmasks

Abstract

21,098. Scott, J. F., and Davenport, H. Sept. 18. Respirators.-In respirators for use in poisonous or smoky atmospheres, and comprising a face mask a with a pneumatic rim b, the air is drawn through a charcoal filter h, preferably provided with an inlet valve k, and passes through a small channel formed by a partition f provided with a pneumatic rim g. The air is exhaled through a valve m. An opening in the mask, controlled by a flap or valve, may be provided. The mask may be fitted with a flexible fire-proof covering for protecting the head of the wearer.
GB191321098D 1913-09-18 1913-09-18 Improvements relating to Respiratory Apparatus for use in Rescue Operations. Pending GB191321098A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB191321098T 1913-09-18

Publications (1)

Publication Number Publication Date
GB191321098A true GB191321098A (en) 1914-08-20

Family

ID=32646354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191321098D Pending GB191321098A (en) 1913-09-18 1913-09-18 Improvements relating to Respiratory Apparatus for use in Rescue Operations.

Country Status (1)

Country Link
GB (1) GB191321098A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098270A (en) * 1976-10-26 1978-07-04 Bbdm, Inc. Smoke mask apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098270A (en) * 1976-10-26 1978-07-04 Bbdm, Inc. Smoke mask apparatus

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