Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 484
und necessary to use water on a heated bearing.If the water is allowed to reach the armature or com-mutator, it is bound to cause trouble. Water shouldonly be used in case of emergency, and then sparingly* CHAPTER IVOPERATION OF DYNAMOS Constant Potential Dynamos. In order to thoroughlyexplain the… … FIGURE 37. resistance box so that all the resistance is in circuit.A rheostat consists of a number of resistances, Fig. 37,so arranged that they can be cut in or out of the circuitwithout opening the circuit. By reference to the figureit will be seen that the current enters at the handle andfrom…
