. Electrical world. a leads are provided by the use of which theowner may make such changes as he desires. In general structure, these controllers are based upon the mostmodern and improved types of Westinghouse design, insuring re-liability and long life regardless of hard usage. They are thus prac-tically independent of their surroundings, and give satisfactory serviceunder all conditions. The drum is made of metal and secured to an insulated shaft. The contact strips are of hard rolled fingers are also made of hard rolled copper and provided witlilock nuts and adjusting screws. A
. Electrical world. a leads are provided by the use of which theowner may make such changes as he desires. In general structure, these controllers are based upon the mostmodern and improved types of Westinghouse design, insuring re-liability and long life regardless of hard usage. They are thus prac-tically independent of their surroundings, and give satisfactory serviceunder all conditions. The drum is made of metal and secured to an insulated shaft. The contact strips are of hard rolled fingers are also made of hard rolled copper and provided witlilock nuts and adjusting screws. All parts are liberally proportionedand are made easy of access. The cover can be removed by with-drawing with the fingers the pins which hold it in place, and accessto the leads is quickly obtained by removing the strips screwed tothe back of the controller. The contacts, the arcing tips on themain contacts and the fingers are easily removed and important particular which assures the adaptability o£. FIG. 2.—CONTROLLER FOR THREE-WIRE, TW0-V0LT.\GE CIRCUITS. these controllers to various conditions is the fact that the handleand ratchet are so designed that they may be removed from the con-troller and placed at any point which is convenient, and which per-mits connection to the controller by means of bevel gears and shaft-ing. This not only adapts the apparatus for distant control, but itenables the operator to use the identical handle, ratchet and indi-cator dial which are furnished with the controller. This not onlysaves the of making a new handle and ratchet, as is neces-sary with other appliances, but retains the advantages of the peculiari-ties of the Westinghouse operating meclaiiism. The notches in the ratchet are positive, and the design is suchthat as each step is reached a key drops into a notch and stops thehandle, holding it firmly in place until released by a pressure uponthe thumb stop in the end of the handle. The operator is thus ableto
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
