GB878847A - Improvements in and relating to welders protective shields - Google Patents
Improvements in and relating to welders protective shieldsInfo
- Publication number
- GB878847A GB878847A GB17027/60A GB1702760A GB878847A GB 878847 A GB878847 A GB 878847A GB 17027/60 A GB17027/60 A GB 17027/60A GB 1702760 A GB1702760 A GB 1702760A GB 878847 A GB878847 A GB 878847A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polarizer
- voltage
- welding
- switch
- armature
- 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
- A61F9/061—Masks, shields or hoods for welders with movable shutters, e.g. filter discs; Actuating means therefor
- A61F9/062—Masks, shields or hoods for welders with movable shutters, e.g. filter discs; Actuating means therefor with movable polarising filter discs
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)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
878,847. Welder's protective shields. SONNBERGER, F. May 13, 1960 [May 14, 1959No. 17027/60. Class 97(1) A welder's protective shield comprises polarized sheets rotatable relative to each other by means of an electromagnet which is controlled through a voltage dependent relay by means of the welding voltage: before welding commences the polarizers are uncrossed but they are at least partially crossed as soon as welding commences. In Fig. 2 the shield is in the form of a helmet with head straps 17 adjustable by screws 16. In the device shown in Fig. 1 the welding electrode 1 is connected to a transformer 2, and a voltage dependent relay 3 which controls the switch 4 in the circuit of an electromagnet 5 the armature 6 of which is urged by spring 7 away from the magnet and which by means of a transparent lever 9 operates through a pin and slot connection 13, 14 a polarizer 8 which is rotatable relative to a fixed polarizer. Other connections between a slidable armature and the rotatable polarizer are described including a rack for engaging teeth on the polarizer and a rod fixed to the polarizer and engaging a rod on the armature. Before the electrode 1 is placed on the workpiece the voltage across relay 3 is high and switch 4 is closed but as soon as this voltage begins to decrease this switch is opened.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE878847T | 1959-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB878847A true GB878847A (en) | 1961-10-04 |
Family
ID=6818729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17027/60A Expired GB878847A (en) | 1959-05-14 | 1960-05-13 | Improvements in and relating to welders protective shields |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB878847A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3743381A (en) * | 1971-08-23 | 1973-07-03 | Polaroid Corp | Arrangement for effecting rotational motion between polarizing elements |
EP0189231A1 (en) * | 1985-01-18 | 1986-07-30 | Hendrikus Petrus Wiegel | A protective shield to protect the eyes against vivid light such as a welders mask |
WO1988006030A1 (en) * | 1987-02-12 | 1988-08-25 | Bernard Rosen | Welding helmet |
WO2009030724A1 (en) * | 2007-09-06 | 2009-03-12 | 'WEST SUN' TRADE GmbH | A method and device for filtering the intense dazzling light generated by an electric welding apparatus |
US9956118B2 (en) | 2014-09-15 | 2018-05-01 | 3M Innovative Properties Company | Personal protective system tool communication adapter |
-
1960
- 1960-05-13 GB GB17027/60A patent/GB878847A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3743381A (en) * | 1971-08-23 | 1973-07-03 | Polaroid Corp | Arrangement for effecting rotational motion between polarizing elements |
EP0189231A1 (en) * | 1985-01-18 | 1986-07-30 | Hendrikus Petrus Wiegel | A protective shield to protect the eyes against vivid light such as a welders mask |
US4679254A (en) * | 1985-01-18 | 1987-07-14 | Wiegel Hendrikus P | Protective shield for a welders mask |
WO1988006030A1 (en) * | 1987-02-12 | 1988-08-25 | Bernard Rosen | Welding helmet |
GB2208323A (en) * | 1987-02-12 | 1989-03-22 | Bernard Rosen | Welding helmet |
US4945572A (en) * | 1987-02-12 | 1990-08-07 | Bernard Rosen | Welding helmet |
GB2208323B (en) * | 1987-02-12 | 1990-11-28 | Bernard Rosen | Welding helmet |
WO2009030724A1 (en) * | 2007-09-06 | 2009-03-12 | 'WEST SUN' TRADE GmbH | A method and device for filtering the intense dazzling light generated by an electric welding apparatus |
US9956118B2 (en) | 2014-09-15 | 2018-05-01 | 3M Innovative Properties Company | Personal protective system tool communication adapter |
US11090192B2 (en) | 2014-09-15 | 2021-08-17 | 3M Innovative Properties Company | Personal protective system tool communication adapter |
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