| Henry Lee Scott - 1861 - 674 páginas
...3, 1847.) TELEGRAPH, (Universal.) It consists of an upright post of moderate height, of two movable arms fixed on the same pivot near the top of it, and of a mark called s an indicator on one side of it, merely to distinguish the low numbers 1, 2, 3, from the high numbers,... | |
| 1862 - 966 páginas
...telegraphs were worked by a party of seamen. Fig. I. Fig. 2. TELEGRAPH, UNIVERSAL.! General Description of the Universal Telegraph. For the day signals, the...the indicator, on one side of it. (See Plate I. fig. 1.) Each arm can exhibit the seven positions 1, 2, 3, 4, 5, 6, and 7, exclusive of Нз quiescent position,... | |
| Aide-mémoire - 1862 - 508 páginas
...telegraphs were worked by a party of seamen. Fig. 1. TELEGRAPH, UNIVERSAL.! General Description of the Universal Telegraph. For the day signals, the...arms fixed on the same pivot near the top of it, and uf a mark, called the indicator, on one side of it. (See Plate I. fig. 1.) Each arm can exhibit the... | |
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