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- Semi-portable_engine abstract "A semi-portable engine is a form of stationary steam engine. They were built in a factory as a single unit including the boiler, so that they could be rapidly installed on site and brought into service.Although the earliest examples can be dated to Richard Trevithick in around 1800, the type is best known as the products of Robey & Co. of Lincoln who patented their design in 1873. The distinctive Robey design was an undertype with one or two cylinders mounted beneath a locomotive boiler. The cylinders were mounted beneath the smokebox and a transverse crankshaft ran crossways beneath the boiler, just ahead of the firebox. The frame of these engines was a large iron box casting that formed a single piece foundation for both the engine and boiler.Owing to the small height available with this pre-fabricated foundation, the semi-portable engine had no large flywheel, as was standard practice for stationary engines. The need for a more even power delivery, without the smoothing effect of a flywheel, encouraged the use of twin cylinder engines, even though a larger single cylinder would be cheaper and equally powerful. Where a flywheel was supplied, this was smaller than usual and would still require a pit digging in which to site it. During factory testing, the engine bed would have to be raised on timber baulks to provide this extra height.A typical large stationary engine of this time used a number of lancashire boilers, set in brickwork surrounds. These took a considerable time to build their masonry, let alone install the equipment. The vertical cross-tube boilers used for small portable machinery such as steam cranes had much less steam generation capacity and could only run at full power intermittently. Locomotive boilers though, as used here, had greater capacity and could provide a mechanical plant that could run continuously for long periods. Robey also built some examples, around 1886, with launch-type boilers.Where engines were to be shipped overseas, the ancillary equipment, spare parts etc. were packed into riveted iron sheet boxes. On installation, these boxes could be re-used as water tanks.".
- Semi-portable_engine thumbnail Skansen_w_Chabówce_-maszyna_09.JPG?width=300.
- Semi-portable_engine wikiPageID "33552578".
- Semi-portable_engine wikiPageLength "3950".
- Semi-portable_engine wikiPageOutDegree "23".
- Semi-portable_engine wikiPageRevisionID "616980655".
- Semi-portable_engine wikiPageWikiLink Air_compressor.
- Semi-portable_engine wikiPageWikiLink Boiler_(power_generation).
- Semi-portable_engine wikiPageWikiLink Cast_iron.
- Semi-portable_engine wikiPageWikiLink Category:Stationary_steam_engines.
- Semi-portable_engine wikiPageWikiLink Engine_house.
- Semi-portable_engine wikiPageWikiLink Fire-tube_boiler.
- Semi-portable_engine wikiPageWikiLink Flued_boiler.
- Semi-portable_engine wikiPageWikiLink Flywheel.
- Semi-portable_engine wikiPageWikiLink House-built_engine.
- Semi-portable_engine wikiPageWikiLink Launch-type_boiler.
- Semi-portable_engine wikiPageWikiLink Lincoln,_England.
- Semi-portable_engine wikiPageWikiLink List_of_traction_engine_manufacturers.
- Semi-portable_engine wikiPageWikiLink Pump.
- Semi-portable_engine wikiPageWikiLink Richard_Trevithick.
- Semi-portable_engine wikiPageWikiLink Six-column_beam_engine.
- Semi-portable_engine wikiPageWikiLink Smokebox.
- Semi-portable_engine wikiPageWikiLink Stationary_steam_engine.
- Semi-portable_engine wikiPageWikiLink Steam_crane.
- Semi-portable_engine wikiPageWikiLink Undertype.
- Semi-portable_engine wikiPageWikiLink Vertical_cross-tube_boiler.
- Semi-portable_engine wikiPageWikiLink Winding_engine.
- Semi-portable_engine wikiPageWikiLink File:Marshall_undertype_steam_engine,_Fengate_Farm_-_geograph.org.uk_-_1193829.jpg.
- Semi-portable_engine wikiPageWikiLink File:Skansen_w_Chabówce_-maszyna_09.JPG.
- Semi-portable_engine wikiPageWikiLinkText "Robey".
- Semi-portable_engine wikiPageWikiLinkText "Semi-portable engine".
- Semi-portable_engine wikiPageWikiLinkText "semi-portable engine".
- Semi-portable_engine wikiPageUsesTemplate Template:Commons_category.
- Semi-portable_engine wikiPageUsesTemplate Template:Dn.
- Semi-portable_engine wikiPageUsesTemplate Template:Reflist.
- Semi-portable_engine subject Category:Stationary_steam_engines.
- Semi-portable_engine hypernym Form.
- Semi-portable_engine comment "A semi-portable engine is a form of stationary steam engine. They were built in a factory as a single unit including the boiler, so that they could be rapidly installed on site and brought into service.Although the earliest examples can be dated to Richard Trevithick in around 1800, the type is best known as the products of Robey & Co. of Lincoln who patented their design in 1873. The distinctive Robey design was an undertype with one or two cylinders mounted beneath a locomotive boiler.".
- Semi-portable_engine label "Semi-portable engine".
- Semi-portable_engine sameAs Q12068690.
- Semi-portable_engine sameAs Category:Semi-portable_steam_engines.
- Semi-portable_engine sameAs Machine_à_vapeur_semi-transportable.
- Semi-portable_engine sameAs m.0hgq_yv.
- Semi-portable_engine sameAs Q12068690.
- Semi-portable_engine wasDerivedFrom Semi-portable_engine?oldid=616980655.
- Semi-portable_engine depiction Skansen_w_Chabówce_-maszyna_09.JPG.
- Semi-portable_engine isPrimaryTopicOf Semi-portable_engine.