|
|
|
|
An instrument for detecting methane in mine air. It contains an electric
battery that sustains a small electric glow light. As soon as a certain
percentage of methane enters the workings, a tiny explosion occurs in the
fuse head, where a fine wire filament is melted and starts a bell ringing
continuously. Fay
|
|
About Us DeveloDex™ OptiMall™ Success Tools Tabularium™ WebRef™
|