telegraph machine
Railway Coastal Museum
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| Nom de l'objet : | telegraph machine |
| Catégorie de l'objet : | Tools & Equipment |
| Sous-catégorie de l'objet : | Telecommunications |
| Matériaux : | metal wood |
| Numéro d'accession : | 2004.0048 |
| Province d'utilisation : | Newfoundland Labrador |
| Pays d'utilisation : | Canada |
| Description : | It is a large engine order telegraph. It is a tower with a handle at the top that moves in a semi circle. There is a cutout in the handle that shows different levels of speed for the ship. The base is a pyramid shape ending in the handle at the top. |
| Commentaires : | Seen here is an engine order telegraph or EOT. This communications device was used on a ship by the pilot on the bridge to order engineers in the engine room to power the vessel at a desired speed. In early vessels, from the 1800s until about 1950, the device usually consisted of a round dial with a knob at the center attached to one or more handles, and an indicator pointer on the face of the dial. Traditional EOTs required a pilot wanting to change speed to "ring" the telegraph on the bridge, moving the handle to a different position on the dial. This would ring a bell in the engine room and move their pointer to the position on the dial selected by the bridge. The engineers hear the bell and move their handle to the same position to signal their acknowledgement of the order, and adjust the engine speed accordingly. Such an order is called a "bell. |
| Unité de mesure linéaire : | cm |
| Établissement : |
Railway Coastal Museum
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| Ville de l'établissement : | St John's |
| Province de l'établissement : | Newfoundland Labrador |
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