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Friemann & Wolf Duisburg (FWD) Type 20502
One of the last classic German flame safety lamps, from the 1950s, with a battery-fired glow-wire igniter.
Read more about Friemann & Wolf Duisburg (FWD) Type 20502 →
Collecting, preserving and sharing the history of miners’ lamps
One of the last classic German flame safety lamps, from the 1950s, with a battery-fired glow-wire igniter.
Read more about Friemann & Wolf Duisburg (FWD) Type 20502 →Before metal spark ignition prevailed in the safety lamp, several other systems also served to ignite the lamp from the inside. A proven system, which the Wolf company used for a long…
Read more about Impact ignition in safety lamps →“A safety lamp only works if it’s used.”