GB635173A - Improvements relating to protective hoods - Google Patents
Improvements relating to protective hoodsInfo
- Publication number
- GB635173A GB635173A GB3095347A GB3095347A GB635173A GB 635173 A GB635173 A GB 635173A GB 3095347 A GB3095347 A GB 3095347A GB 3095347 A GB3095347 A GB 3095347A GB 635173 A GB635173 A GB 635173A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crown
- face
- wearer
- air
- hood
- 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
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
- A61F9/06—Masks, shields or hoods for welders
- A61F9/068—Masks, shields or hoods for welders with supply or suction of gas, air or smoke inside or outside the welding hood
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
635,173. Respirators. ANGLO-IRANIAN OIL CO., and MACLEAN, T. T. Nov. 21, 1947, No. 30953. [Class 81(ii)] A protective hood has a filter inlet in the lower part of the face mask and an air inlet in the crown of the hood, so that the passage of air is in an upward direction across the face of the wearer. It also has an inner frame for supporting the crown of the hood on the wearer's head. In the form described a metal crown 2 is supported on the head by a frame member 7 and carries a skirt 5 of cotton fabric impregnated with polyvinyl chloride. At the front there is a rigid facepiece 8 provided with a window 3 of cellulose acetate and having a stepped portion 13 with holes 15 allowing air to pass upwards through a charcoal or other filter 16. The air passes upwards in front of the face of the wearer, the flow being induced by the warmth of the face, and passes out through a hole 21, in the crown, and a cowl 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3095347A GB635173A (en) | 1947-11-21 | 1947-11-21 | Improvements relating to protective hoods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3095347A GB635173A (en) | 1947-11-21 | 1947-11-21 | Improvements relating to protective hoods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB635173A true GB635173A (en) | 1950-04-05 |
Family
ID=10315685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3095347A Expired GB635173A (en) | 1947-11-21 | 1947-11-21 | Improvements relating to protective hoods |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB635173A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106794073A (en) * | 2014-09-11 | 2017-05-31 | 3M创新有限公司 | The eye protection helmet |
-
1947
- 1947-11-21 GB GB3095347A patent/GB635173A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106794073A (en) * | 2014-09-11 | 2017-05-31 | 3M创新有限公司 | The eye protection helmet |
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