| Document ID (ISN) | 26950 |
| CIS number |
77-832 |
| ISSN - Serial title |
Sicurezza nel lavoro |
| Year |
1976 |
| Convention or series no. |
|
| Title |
Anti-flash welding mask |
| Original title |
Maschera anti-flash per saldatura [in Italian] |
| Bibliographic information |
July-Aug. 1976, Vol.28, No.4, p.18-19. Illus. |
| Abstract |
Description of this device, which may be incorporated in a head mask or shoulder-supported mask. An electric signal actuated as soon as the arc is struck passes to an electronic unit, which immediately causes the protective filter window of the mask, which until then is open, to descend. During the 1/10sec required to close the window, or if the window does not completely close, the welding current remains cut. The window does not open immediately when the arc is extinguished, in order to protect the operator's eyes from infrared radiation from the welding pool: the time lag can be adjusted according to the size of the pool. |
| Descriptors (primary) |
arc welding and cutting; welders helmets; filter glasses |
| Descriptors (secondary) |
ultraviolet radiation; face and eye protection; automatic control; photophthalmia |
| Document type |
- |
| Subject(s) |
Metal production and metalworking
|
| Broad subject area(s) |
|
| Browse category(ies) |
Face and eye protection
Welding and cutting
|
