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The diagram, which is not to scale, is a composite of various designs in the late steam era. Some components shown are not the same as, or are not present, on some locomotives – for example, on smaller or articulated types. Conversely, some locomotives have components not listed here.
The railroad then developed a more effective system consisting of wooden balls, painted red, white or black, and hoisted up or down a pole on a rope-and-pulley system. The initial use of these signals was merely to indicate the on-time status of trains, rather than to control train movements.
In 1883, a railroad company in France also experimented with electrical lights, but the first example to go into production was designed by an American inventor in 1897. In 1915, the United States Congress passed a law mandating every train be equipped with an electric headlight, ending all debate about their utility. [ 3 ]
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
English: KarTrak codes used in the 1960s and 1970s to create barcodes to automatically identify railroad equipment in North America. Each of the 13 'bars' above was an individual label that would be affixed to a black metal plate mounted on a railroad car, to form a complete barcode.
Pages in category "Locomotive parts" The following 89 pages are in this category, out of 89 total. This list may not reflect recent changes. A. Automatic lubricator; B.
In those days, many crossings were protected by a watchman who warned of an oncoming train by swinging a red lantern in a side-to-side arc, used universally in the United States to signify "stop". This motion is still used today by railroad workers to indicate stop per the General Code of Operating Rules (GCOR) Rule 5.3.1. It was presumed that ...
The British semaphore signal arm consists of two parts: A wooden or metal arm (or "blade") which pivots at different angles, and a spectacle holding coloured lenses which move in front of a lamp in order to provide indications at night. Usually these were combined into a single frame, though in some types (e.g. "somersault" signals in which the ...