Illustrated catalogue and price-list of James Macbeth & Co. (1891)
James Macbeth & Co. · James Macbeth & Co. · leaf 21
ric current from the bat-tery to the fuse wires, for the purpose of exploding the fuses ; and should beof the purest copper, about 14 gauge wound and braided with cotton, andwaterproofed. About 250 to 350 feet is required for each side of the bat-tery. We manufacture this wire, and have facilities… … or break by coiling, or by rocks falling upon it. These breaks arc difficult todetect, and the wire should be tested daily when in use, with our electrictester ; which can de done by placing each end of the wire in the binding poston each end of the tester, and turning the handle. The bell will…
