GB473247A - Improvements in and relating to air admission devices for high altitude breathing apparatus - Google Patents
Improvements in and relating to air admission devices for high altitude breathing apparatusInfo
- Publication number
- GB473247A GB473247A GB10957/37A GB1095737A GB473247A GB 473247 A GB473247 A GB 473247A GB 10957/37 A GB10957/37 A GB 10957/37A GB 1095737 A GB1095737 A GB 1095737A GB 473247 A GB473247 A GB 473247A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air admission
- high altitude
- breathing apparatus
- relating
- altitude breathing
- 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
Links
Classifications
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
- F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
473,247. Valves. DEGEA AKT.-GES. (AUERGES.). April 16, 1937, No. 10957. Convention date, April 24, 1936. [Class 135] An air admission device for high altitude breathing apparatus comprises a valve disc '6 with a conical throttling portion 7 and a sliding member 8 guided within a cylindrical casing 4 by ribs and grooves 9, 10. Cam surfaces 11 on the member 8 are engaged by corresponding surfaces 13 on a rotatable cover 12 to open the valve against the pressure of a spring 14. Air admission passages 17 are provided in the casing 4 for admission of air past the valve 7, 6 to the apparatus 1.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE473247X | 1936-04-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB473247A true GB473247A (en) | 1937-10-08 |
Family
ID=6541538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10957/37A Expired GB473247A (en) | 1936-04-24 | 1937-04-16 | Improvements in and relating to air admission devices for high altitude breathing apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB473247A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2521166A (en) * | 1945-06-18 | 1950-09-05 | Tri Clover Machine Co | Relief valve |
-
1937
- 1937-04-16 GB GB10957/37A patent/GB473247A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2521166A (en) * | 1945-06-18 | 1950-09-05 | Tri Clover Machine Co | Relief valve |
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