Illustrated catalogue and price-list of James Macbeth & Co. (1891)
James Macbeth & Co. · James Macbeth & Co. · leaf 8
e the necessary preparations before exploding the charge. In mining gold, silver, lead, copper, iron ore, coal salt, etc., we recom-mend our electric appliances- Also for shafts, tunnels, q rry work, stumpblasting, railroad work, well sinking, earth banks, and for all work requiringthe use of bl… … A. —Hole in Rock. B —Dynamite Charge in Hole. ( — Electric Fuses in Dynamite Charge. D —Connecting Wire joining Fuse Wires together. E.—Leading Wire from Battery to Fuse Wires. F.—Electric Blasting Machine or Battery. The above cut represents clearly the manner of connecting holes forfiring by…
