Author Topic: The Flint Mill  (Read 693 times)

0 Members and 1 Guest are viewing this topic.

Offline Boreas

  • Whetstone +
  • **
  • Posts: 130
The Flint Mill
« on: January 16, 2015, 10:00:23 AM »
http://www.sciencemuseum.org.uk/online_science/explore_our_collections/objects/index/smxg-44011

Interesting little device invented by Carlisle Spedding in the 1700s.  Takes flint and steel to peak efficiency. Designed primarily as a light source in mines.  Although one source mentioned it being used to "detecting methane".  I'm not sure exactly how that'd work, but think I'd send in the canary before I went into a mine shaft and started sparking

Offline PetrifiedWood

  • Friction Fire Fellowship
  • Administrator
  • Belt Grinder
  • ******
  • Posts: 11339
Re: The Flint Mill
« Reply #1 on: January 16, 2015, 03:02:46 PM »
Pretty neat! Basically an oversized bic lighter without the butane.

Offline wsdstan

  • Supporting Member
  • Diamond Stone
  • ****
  • Posts: 8301
Re: The Flint Mill
« Reply #2 on: January 16, 2015, 05:37:14 PM »
Interesting device. 

Walking into a mine spinning that thing would be an invitation to disaster. 

 
A man who carries a cat by the tail learns  something he can learn in no other way. 
(Mark Twain)

Offline offtrail

  • Friction Fire Fellowship
  • Whetstone +
  • **
  • Posts: 481
Re: The Flint Mill
« Reply #3 on: January 17, 2015, 12:21:48 AM »
Interesting!