. The Street railway journal . FIG. io.—INDIVIDUAL CONTROL STAND lead and the other to the outgoing lead of the same phase,each contact being mounted within a large porcelain in-sulator. These insulators are mounted on a cast-iron framewhich forms the top, and supports the enclosing oil the switch illustrated there are three frames, each fas-tened in a separate compartment by means of strain in-sulators to the under side of a soapstone slab, which isplaced on top of the cell structure and under the cast-ironbase of the operating mechanism. The movable contact for each pole consists of
. The Street railway journal . FIG. io.—INDIVIDUAL CONTROL STAND lead and the other to the outgoing lead of the same phase,each contact being mounted within a large porcelain in-sulator. These insulators are mounted on a cast-iron framewhich forms the top, and supports the enclosing oil the switch illustrated there are three frames, each fas-tened in a separate compartment by means of strain in-sulators to the under side of a soapstone slab, which isplaced on top of the cell structure and under the cast-ironbase of the operating mechanism. The movable contact for each pole consists of a U-shapedcopper piece fastened to the end of a stout wooden rod. Inthe closed position of the switch this U-shaped piece elec-trically connects the the two stationary contacts of eachpole. The wooden rods are fastened at their upper endsto a common cross bar, which, through a system of leversgiving a straight line motion, is raised by means of theclosing magnets, assisted at the beginning of its motion bya pair of balance s
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
