Welp: just after I published my mining safety lamp video, I came across another lamp with a lot of fascinating design features not covered in my previous video.
Invented by German mining engineer Carl Wolf in the 1880s, the Wolf Safety Lamp was the first to run on benzene rather than oil. This example, manufactured by the Wold Safety Lamp Company of Lead, England, in the 1910, incorporates a number of other fascinating design features, including a primer tape friction relighter and a Cunyghame-Cadman Device for firedamp detection.
Mine Safety Lamps Video: https://youtu.be/izpP51DFjFE
Carbide Lamp Video: https://youtu.be/mt2Sfa4Ae3k
0:00 Introduction
1:13 History of Friemann & Wolf GMBH
4:14 Wolf Safety Lamp Company Ltd.
4:47 External Design and Variations
6:21 Percussion / Friction Igniters
9:11 Friction Igniter Disassembly
9:45 Fuel Tank and Wick
10:03 Firedamp Detection Devices
12:34 Cunyghame-Cadman Device
13:13 Gas Testing Shutter
13:22 Outro
SOURCES
https://mineralogicalrecord.com/wp-content/uploads/2023/12/SAFETY-LAMPS-Moon-Standard-Wolf-Safety-Lamp-MAC-9-FALL-1990.pdf
https://mineralogicalrecord.com/wp-content/uploads/2023/12/SAFETY-LAMPS-Stutzer-Frieman-und-Wolf-Part-I-EUREKA-10-APRIL-1994.pdf
https://mineralogicalrecord.com/wp-content/uploads/2023/12/CARBIDE-Stutzer-Friemann-and-Wolf-Part-II-EUREKA-11-APRIL-1994.pdf
http://www.mininghistoryassociation.org/Journal/MHJ-v18-2011-Bartos.pdf
https://libguides.staffs.ac.uk/c.php?g=717727&p=5202729
http://www.dmm.org.uk/news19/9270521e.htm
https://england.prm.ox.ac.uk/englishness-Miners-lamp.html
https://patents.google.com/patent/US612293A/en?
https://patents.google.com/patent/US302878
https://patents.google.com/patent/US1052783A/en
https://mineralogicalrecord.com/wp-content/uploads/2023/12/SAFETY-LAMPS-Steinberg-Wolf-Focket-Safety-Lamp-MAC-2-WINTER-1989.pdf
https://www.nature.com/articles/086394a0.pdf
https://digital.library.unt.edu/ark:/67531/metadc12410/m1/220/
http://www.geocities.ws/minerslamps/Pielerindex.htm
https://www.worthpoint.com/worthopedia/unusual-wolf-miners-safety-lamp-4680748271