 | William L. Derr - 1902 - 296 էջ
...definitions of interlocking and block signals, as revised by its Joint Committee, February 20 and '21, 1896. Block. — A length of track of defined limits, the use of which by trains is controlled by block signals. Block Station. — The office from which block signals are operated. Block... | |
 | William L. Derr - 1897 - 290 էջ
...interlocking and block signals, as revised by its Joint Committee, February 20 and 21, 1896. Block.—A length of track of defined limits, the use of which by trains is controlled by block signals. Block Station.—The office from which block signals are operated. Black... | |
 | William Hubert Burr - 1902 - 506 էջ
...Association gives the following definitions among others pertaining to the block system: Block.—A length of track of defined limits, the use of which by trains is controlled by block signals. Block Station.—The office from which block signals are operated. Block... | |
 | William Hubert Burr - 1903 - 512 էջ
...the American Railway Association gives the following definitions among others pertaining to the block system: Block. — A length of track of defined limits, the use of which by trains is controlled by block signals. Block Station. — The office from which block signals are operated. Block... | |
 | Southern Pacific Company (Pacific System) - 1903 - 176 էջ
...one mast with brackets, or by using separate masts from the ground. BLOCK SIGNALING. DEFINlTlONS. 18. BLOCK— A length of track of defined limits, the use of which by trains is controlled by Block Signals. 19. BLOCK STATION— A place from which Block Signals are operated. 20.... | |
 | 1904 - 186 էջ
...interlocking plant is operated. INTERLOCKING SIGNALS.—The fixed signals of an interlocking plant. BLOCK.—A length of track of defined limits, the use of which by trains is controlled by block signals, BLOCK STATION.—A place from which block signals are operated. BLOCK... | |
 | American Railway Engineering and Maintenance-of-Way Association - 1907 - 308 էջ
...SIGNALING AND INTERLOCKING. 6 I 5 •I I 1 I 'SIGNALING AND INTERLOCKING. DEFINITIONS. ——__«. BLOCK.— A length of track of defined limits, the use of which by trains is controlled by block signals. BLOCK STATION. — A place from which block signals are operated. BLOCK... | |
 | Railway Signal Association - 1908 - 572 էջ
...sent through a single telegraph wire; used on electric railroads. See Figs. 405-470. Block (noun). A length of track of defined limits, the use of which by trains is governed by block signals. The common name for a block section. Block Indicator. An electro-magnetic device (in... | |
 | 1909 - 1226 էջ
...that space interval, to a railroad, of course, \ve divide it into blocks, a block being defined as a length of track of defined limits, the use of which by trains is controlled by a block signal, it being considered necessary to give the engineer some form of a visual... | |
 | James Brandt Latimer - 1909 - 428 էջ
...The latter is frequently done abroad. The American Railway Association has defined a block as being "a length of track of defined limits, the use of which by trains is controlled by block signals." A block signal is one used solely to warn a train that it is safe or... | |
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Block. A length of track of defined limits, the use of which by trains is governed by block signals, cab signals, or both. 
