Hill, John A. (John Alexander), 1858-1916, Sinclair, Angus, 1841-1919 · New York : American Machinist Pub. Co · leaf 475
t, N. ¥, STANDABD SOAPSTONE, 8c.XX do 120. CLIMAX lOo. Samples Cheerfully Furnished. THE I, O C O l\r O T T V E ENGINEER. [April, 1S90 THE NEW HALL SIGNAL! IK mmm reluble auiomatic elegtbig rjulroiio signal. The RECORD OF ITS PRACTICAL OPERATION POSITIVELY UNPARALLELED! Boston & Albany R. R.… … N. Y.. N. H. & H. R. R. Co. March 30th, 1882, 2 Signals in operation.January 1st, 1890, 74 Signals in opera-tion and additional applications arenow being rapidly made. INTERLOCKING GRADE CROSSING AND JUNCTION SIGNALS. HIGHWAY CROSSING SIGNALS. The rcccinl <j{ liiL- inrfoniiiiims of i!ic NKW…
Railroads · Locomotives
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