Glossary Results for prefix "pa"
P4 system | See Model Gauges![]() |
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Pacific Wheel Arrangement | A generic name for the the 4-6-2 wheel arrangement. See Whyte wheel arrangement![]() |
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Pannier Tank Engine | A tank engine whose tanks are mounted on either side of the boiler but not above it (as in a saddle tank) nor reaching to the footplate (as in a side tank). Such engines were very common on the Great Western | |
Parachute Water Tank | A water column with a cylindrical water tank mounted above it, feeding only that column. | |
Parcels Van | Normally NPCS![]() |
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Passenger Class | Compartments![]() ![]() |
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Passenger Train | A train for carrying people. Essentially this required the vehicles in the train to meet higher standards of running gear![]() ![]() |
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Patent 2-2-2 Locomotive Class | In 1852 McConnell![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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Pavior | A person who laid the flagstones and kerbs on the pavements. | |
Pennsylvania | A locomotive of the “Teutonic” class![]() ![]() |
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Permanent Way | The track of a railway line; the ballast![]() ![]() |
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Permissive Block Working | A system of train operation where, under special conditions, a train may proceed with great caution into a block section![]() ![]() ![]() |
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Picnic Saloon | Carriage intended to convey private parties on day excursions, and so laid out with seating, tables and often a larder cupboard so as enable the party to consume their picnic food while travelling. Popular from about 1890 to 1930, but displaced by road motor coaches. | |
Pigeon Van | The LNWR did not construct any special vans for pigeon traffic, but from about 1908 a number of existing six-wheeled Parcel Sorting Vans were altered to Pigeon Vans. This simply involved the provision of additional shelving. Further conversions (perhaps the majority) were made after 1915 when many thousands of homing pigeons were bred and used for communications purposes. |
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Pin Down Brakes | To apply the brakes of a goods train by pressing on the brake lever of each wagon in turn and inserting a pin through holes in a rack to keep the lever in the down position and the brakes applied, or ‘on’. | |
Piston | A disc which moves backwards and forwards inside a hollow cylinder![]() |
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Piston Rod | The rod that transfers the power from the piston to the Cross head![]() |
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Piston Valve | A type of gas-distribution valve, in which an oscillating piston![]() ![]() |
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Plate Frame | Almost all British railway engines were built on plate frames,that is two parallel thick (c.1in – 1.25in) steel plates running front to back of the engine, in which the horn guides![]() ![]() ![]() |
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Plate layer | A person who puts the track into position onto the ballast![]() ![]() ![]() ![]() ![]() |
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Platform Trolley | A four wheeled flat vehicle with a pivoting axle attached to a tow-bar, used by station staff to move goods, mail and luggage within a station. |