The application of electricity to railway working (1897)
Langdon, William Edward, 1832-1905 · London : Spon · leaf 233
A peg D for use in connection with these holes isaffixed near. Upon the right-hand side of the sending portion of theinstrument is a sliding bar and button E, capable of beingdrawn out to the dotted position F. The internal arrangement of the apparatus is illustrated 204 The Application of… … FIG. 116. C ; D D are two crown or toothed wheels mounted on an axleE, upon which is mounted the pointer F ; G is a helical spring,the purpose of which is to retain the pallet C against thewheel D. to Railway Working. 205 On a current passing through the coils A, the armatureB is attracted towards…
Railroads -- Equipment and supplies · Electric apparatus and appliances
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