Rugged lamp used by miners is adapted for firefighters by utilization of smaller, rechargeable 3-hour-life gel-cell battery. Lighter, maintenance free unit can be clipped to outer clothing for convenience. Small monitor circuit indicates need to recharge battery.
Fireman's lamp
NASA Tech Briefs ; 2 , 3
1977-11-01
Sonstige
Keine Angabe
Englisch
NTRS | 1976
Arrangement of whistle lever for the fireman's use
Engineering Index Backfile | 1927
|SAE Technical Papers | 2010