. The Street railway journal . the shafthaving a travel of about 4 ft. This is actuated by acountershaft and small gear, which is driven by means of J September, 1899.] STREET RAILWAY JOURNAL. 563 belting from the overhead shafting. By the use of thismachine it requires about a minute to cut a keyway in agear, including the time consumed in putting the wheel in. shifts the belt, starts or stops the compressor, at the sametime cuts off or lets on the flow of water through the waterjacket of the cylinder. USE OF COPPER Hard-drawn copper bars are employed in commutatorconstruction. In practice it
. The Street railway journal . the shafthaving a travel of about 4 ft. This is actuated by acountershaft and small gear, which is driven by means of J September, 1899.] STREET RAILWAY JOURNAL. 563 belting from the overhead shafting. By the use of thismachine it requires about a minute to cut a keyway in agear, including the time consumed in putting the wheel in. shifts the belt, starts or stops the compressor, at the sametime cuts off or lets on the flow of water through the waterjacket of the cylinder. USE OF COPPER Hard-drawn copper bars are employed in commutatorconstruction. In practice it is found that the life of thecommutator varies greatly, depending on the service. Thecars on the lines of heavy traffic are the ones on whichmost of the repairs are necessary; the others seldom comein for repairs. It is the practice of these shops to returnthe copper wire employed in field coils to the manufactur-ers, after a coil has been damaged, to have it reinsulated,
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
