GB341187A - Improvements in and relating to observation shields - Google Patents

Improvements in and relating to observation shields

Info

Publication number
GB341187A
GB341187A GB3493829A GB3493829A GB341187A GB 341187 A GB341187 A GB 341187A GB 3493829 A GB3493829 A GB 3493829A GB 3493829 A GB3493829 A GB 3493829A GB 341187 A GB341187 A GB 341187A
Authority
GB
United Kingdom
Prior art keywords
observation
shields
relating
glass
warden
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
Application number
GB3493829A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRANKLIN MILTON WARDEN
Original Assignee
FRANKLIN MILTON WARDEN
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 FRANKLIN MILTON WARDEN filed Critical FRANKLIN MILTON WARDEN
Priority to GB3493829A priority Critical patent/GB341187A/en
Publication of GB341187A publication Critical patent/GB341187A/en
Expired legal-status Critical Current

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
    • A61F9/064—Masks, shields or hoods for welders with two windows, one for viewing and one for use during the welding process

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)
  • Glass Compositions (AREA)

Abstract

341,187. Glass manufacture. WARDEN, F. M., 38, South Dearborn Street, Chicago, U.S.A. Nov. 15, 1929, No. 34938. Drawings to Specification. [Class 56.] Glass for the observation means of a welder's helmet or shield consists of siliceous material containing finely divided particles of metal such as gold.
GB3493829A 1929-11-15 1929-11-15 Improvements in and relating to observation shields Expired GB341187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3493829A GB341187A (en) 1929-11-15 1929-11-15 Improvements in and relating to observation shields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3493829A GB341187A (en) 1929-11-15 1929-11-15 Improvements in and relating to observation shields

Publications (1)

Publication Number Publication Date
GB341187A true GB341187A (en) 1931-01-15

Family

ID=10371804

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3493829A Expired GB341187A (en) 1929-11-15 1929-11-15 Improvements in and relating to observation shields

Country Status (1)

Country Link
GB (1) GB341187A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132377A (en) * 1982-12-22 1984-07-04 Chen Pin Shen Improved welding mask
WO1992008428A1 (en) * 1990-11-09 1992-05-29 Safemaster Oy Protective device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132377A (en) * 1982-12-22 1984-07-04 Chen Pin Shen Improved welding mask
WO1992008428A1 (en) * 1990-11-09 1992-05-29 Safemaster Oy Protective device
DE4192879C2 (en) * 1990-11-09 2000-11-09 Safemaster Oy Moisio Protection device

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