GB458914A - - Google Patents

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Publication number
GB458914A
GB458914A GB458914DA GB458914A GB 458914 A GB458914 A GB 458914A GB 458914D A GB458914D A GB 458914DA GB 458914 A GB458914 A GB 458914A
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United Kingdom
Prior art keywords
rod
bag
aug
lever
engaging
Prior art date
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Publication of GB458914A publication Critical patent/GB458914A/en
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  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

458,914. Respiratory appliances. DRAGER, O. H., L³beck, Germany. Aug. 7, 1936, No. 21846. Convention date, Aug. 7, 1935. [Class 81 (ii)] In respiratory appliances comprising an oxygen-supply valve e connected by a lever to a breathing bag n, the lever is in two parts a, c hingedly connected at g, the part c having an extension b acting as a stop. The part a has a fork p engaging a button o on the bag and the part c a rearward extension c<1>, pressure on which by a manually-operated rod i opens the valve e independently of the bag action. The rod i slides in guides q, q<1> on the valve casing, has a terminal roller r, and a spring between the guide q<1> and a terminal knob. A set-screw on guide q, engaging a groove in the rod, prevents rotation thereof.
GB458914D Active GB458914A (en)

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ID=1746778

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GB458914D Active GB458914A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228684A (en) * 1989-01-24 1990-09-05 Draegerwerk Ag Recirculatory respiratory protective apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228684A (en) * 1989-01-24 1990-09-05 Draegerwerk Ag Recirculatory respiratory protective apparatus

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