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Anticreeper (us)
| Глоссарий в железнодорожной технике |
A device firmly attached to the base of a rail and bearing against a crosstie (sleeper), to keep the rail from moving longitudinally under traffic. (uk: rail anchor.)uos
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Longitudinal, английский
- Generally parallel to the direction of the wood fibres.
- Продольный
- Generally, parallel to the direction of the wood fibers.
- Продольный, относящийся к долготе, стрингер
- [1] extending in the lengthwise direction, as distinguished from transverse. [2] said of any fore-and-aft structural member, such as a frame or bulkhead.
- Running lengthwise.
- Along the length of a structure.
- Direction parallel to the long axis of an object and perpendicular to its radius — for example, down the length of a cylinder. compare circumferential; radial; transverse. lot tolerance percent defective (ltpd): the poorest quality, in percent defective, individual lot that is acceptable in a sampling plan. ltpd is the percent defective that will be accepted by the sampling plan at most 10 percent of the time. with such a plan, the producer agrees to supply just enough nonconforming product such the consumer will accept the lot using the agreed to sampling plan and acceptable quality level. compare acceptable quality level. lumen (lm): si photometric unit of luminous flux, weighted according to the photopic vision response. one lumen equals the light emitted by one candela (cd) point source into one steradian (sr) solid angle (1 lm = 1 cd/sr).
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Adjustment switch, английский
- A device which allows longitudinal rail movement to dissipate thermal forces when cwr is adjacent to jointed track or other features not designed to withstand thermal forces. adjustment switches are also used when thermal forces, additional to those in cwr, may be encountered such as at long under-bridges which are themselves subject to expansion and contraction (us term: breather switch). rt
- A device which allows longitudinal rail movement to dissipate thermal forces when cwr is adjacent to jointed track or other features not designed to withstand thermal forces. adjustment switches are also used when thermal forces, additional to those in cwr, may be encountered such as at long under-bridges which are themselves subject to expansion and contraction.
Dragging detector, английский
A device designed to alert a railway control centre that a train has become derailed or a part of the train is dragging on the right of way. normally consists of a bar placed across the four-foot (between the rails) which will be broken if struck. often used on remote heavy haul freight lines where it is difficult for the crew to detect a mishap of this sort.
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