GB275354A - Improvements in face masks - Google Patents
Improvements in face masksInfo
- Publication number
- GB275354A GB275354A GB1307626A GB1307626A GB275354A GB 275354 A GB275354 A GB 275354A GB 1307626 A GB1307626 A GB 1307626A GB 1307626 A GB1307626 A GB 1307626A GB 275354 A GB275354 A GB 275354A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- nose
- separate
- pipe
- frame
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing 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
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
275,354. O'Flanagan, M. May 21, 1926. Respirators. - Goggles for swimming, for use in irritating atmospheres, &c., are formed with a semi-rigid frame, which may either be of hard rubber with a soft rubber edge, or of metal and with an underlying sheet of rubber, making contact with the face across the forehead, down the cheekbones and over the nose. The frame may also include a chamber, separate from the eye chamber, enclosing the nose and mouth. Fig. 1 shows the shape of the frame a with a flexible edge b and glasses f. The glasses f may, as shown in Fig. 3, be shaped as segments of spheres with their centres at the centres of rotation of the eyeballs. The chambers d are connected by tubes i, i<3> for the circulation of air, which is promoted by compressible chambers i<1> in the tube i separated by non-return valve i<2>. Fig.- 10 shows goggles with a separate nose-chamber m provided with an inlet pipe n. The pipe n may be provided with a non-return inlet valve, an outlet valve for expiration being provided in the chamber m or in a separate chamber covering the mouth. The pipe n may be connected to an air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1307626A GB275354A (en) | 1926-05-21 | 1926-05-21 | Improvements in face masks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1307626A GB275354A (en) | 1926-05-21 | 1926-05-21 | Improvements in face masks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB275354A true GB275354A (en) | 1927-08-11 |
Family
ID=10016351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1307626A Expired GB275354A (en) | 1926-05-21 | 1926-05-21 | Improvements in face masks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB275354A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2586851A (en) * | 1935-10-16 | 1952-02-26 | Us Sec War | Diaphragm optical gas mask |
| GB2185888A (en) * | 1986-01-30 | 1987-08-05 | Ever In Investments Limited | Head-fitting swimming apparatus |
-
1926
- 1926-05-21 GB GB1307626A patent/GB275354A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2586851A (en) * | 1935-10-16 | 1952-02-26 | Us Sec War | Diaphragm optical gas mask |
| GB2185888A (en) * | 1986-01-30 | 1987-08-05 | Ever In Investments Limited | Head-fitting swimming apparatus |
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