Date Uploaded: July 23, 2024
Permanent Link: http://wnhpc.com/details/fb3153888118200378
Contributor: Comstock Foundation for History and Culture on Facebook
Source: Facebook: Comstock Foundation for History and Culture
Source URL: https://www.facebook.com/photo/?fbid=3153888118200378&set=a.2252316225024243
Source Caption: Did you know? (if you did, pretend like it is new info, and be awed... ha!) 1860: The Ophir Mine in Virginia City was having problems with cave-in’s. W.F. Babcock, one of the Ophir Mine's Trustees sent for Phillip Deidesheimer, a German engineer in California to work out a plan to prevent the cave-in’s. Deidesheimer came up with a design called square-set timbering wherein eight foot tall beams, 16in by 16in were interconnected using mortise and tenon in squares leaving an open space between the beams. This provided support for the large stopes, or cavities, from which rich ore was extracted and prevented cave-in’s. This system then began being used in underground mining all over the known mining world. Still in use today in some areas.
Download Photo: JPG (200 KB)
← Previous Photo
Next Photo →
