About: Gresley conjugated valve gear

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The Gresley conjugated valve gear is a valve gear for steam locomotives designed by Sir Nigel Gresley, chief mechanical engineer of the LNER, assisted by Harold Holcroft. It enables a three-cylinder locomotive to operate with only the two sets of valve gear for the outside cylinders, and derives the valve motion for the inside cylinder from them by means of levers (the "2 to 1 lever" and "equal lever"). The gear is sometimes known as the Gresley-Holcroft gear, acknowledging Holcroft's major contributions to its development.

Attributes	Values
rdf:type	aircraft
rdfs:label	Gresley conjugated valve gear (en) グレズリー式連動弁装置 (ja)
rdfs:comment	The Gresley conjugated valve gear is a valve gear for steam locomotives designed by Sir Nigel Gresley, chief mechanical engineer of the LNER, assisted by Harold Holcroft. It enables a three-cylinder locomotive to operate with only the two sets of valve gear for the outside cylinders, and derives the valve motion for the inside cylinder from them by means of levers (the "2 to 1 lever" and "equal lever"). The gear is sometimes known as the Gresley-Holcroft gear, acknowledging Holcroft's major contributions to its development. (en) グレズリー式連動弁装置 (グレズリーしきうんどうべんそうち、Gresley conjugated valve gear) は蒸気機関車の弁装置の一つであり、ロンドン・アンド・ノース・イースタン鉄道 (LNER) の主任機械技師ナイジェル・グレズリー (Nigel Gresley) により (Harold Holcroft) の協力を得て設計された。これにより、三気筒蒸気機関車の中央シリンダーの弁装置を、外側二気筒の弁装置からの連動梃によって駆動できる様になった。開発にはホルクロフトの貢献が大であったことを示すため、「グレズリー-ホルクロフト弁装置」と呼ばれることもある。 (ja)
foaf:depiction
dcterms:subject	Locomotive valve gear
Wikipage page ID	2785847 (xsd:integer)
Wikipage revision ID	1123299568 (xsd:integer)
Link from a Wikipage to another Wikipage	New South Wales Government Railways Locomotive valve gear Cutoff (steam engine) Union Pacific 9000 class Union Pacific Railroad Victorian Railways H class Victorian Railways S class Edward Thompson (engineer) Great Western Railway NZR G class (1928) London and North Eastern Railway Steam locomotive Harold Holcroft Walschaerts valve gear American Locomotive Company 4-6-2 4-8-2 Rack and pinion LNER Class A4 4468 Mallard LNER Class B17 Henschel & Son Holcroft valve gear South African Class 18 2-10-2 New South Wales D57 class locomotive New South Wales D58 class locomotive World War II Valve gear Sir Nigel Gresley Roller bearing
Link from a Wikipage to an external page	https://web.archive.org/web/20060914063717/http:/www.trainweb.org/rlhs/collection/UP_locomotives/UP_9000.html
sameAs	Gresley conjugated valve gear Gresley conjugated valve gear Gresley conjugated valve gear Gresley conjugated valve gear
dbp:wikiPageUsesTemplate	dbt:Citation_needed dbt:Convert dbt:Pad dbt:Reflist dbt:Short_description dbt:Use_British_English dbt:Use_dmy_dates dbt:Locomotive_running_gear dbt:Steam_engine_configurations
thumbnail	wiki-commons:Special:FilePath/GA_at_SVR.jpg?width=300
has abstract	The Gresley conjugated valve gear is a valve gear for steam locomotives designed by Sir Nigel Gresley, chief mechanical engineer of the LNER, assisted by Harold Holcroft. It enables a three-cylinder locomotive to operate with only the two sets of valve gear for the outside cylinders, and derives the valve motion for the inside cylinder from them by means of levers (the "2 to 1 lever" and "equal lever"). The gear is sometimes known as the Gresley-Holcroft gear, acknowledging Holcroft's major contributions to its development. (en) グレズリー式連動弁装置 (グレズリーしきうんどうべんそうち、Gresley conjugated valve gear) は蒸気機関車の弁装置の一つであり、ロンドン・アンド・ノース・イースタン鉄道 (LNER) の主任機械技師ナイジェル・グレズリー (Nigel Gresley) により (Harold Holcroft) の協力を得て設計された。これにより、三気筒蒸気機関車の中央シリンダーの弁装置を、外側二気筒の弁装置からの連動梃によって駆動できる様になった。開発にはホルクロフトの貢献が大であったことを示すため、「グレズリー-ホルクロフト弁装置」と呼ばれることもある。 (ja)
gold:hypernym	Gear
prov:wasDerivedFrom	wikipedia-en:Gresley_conjugated_valve_gear?oldid=1123299568&ns=0
page length (characters) of wiki page	11104 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Gresley_conjugated_valve_gear
is Link from a Wikipage to another Wikipage of	Caledonian Railway 956 Class Cylinder (locomotive) Union Pacific 9000 Class Victorian Railways H class Victorian Railways S class List of mechanical engineers SECR K and SR K1 classes SECR N1 class SR U1 class Edward Thompson (engineer) GNR Class A1 1470 Great Northern GNR Class O2 Garratt NER Class S3 NZR G class (1928) ČSD Class 387.0 Harold Holcroft Divided drive (locomotive) List of British engineers 4-6-2+2-6-4 4-6-2 4-8-2 Nigel Gresley List of LNER Class D49 locomotives 2-10-2 LNER B17 Class 61673 Spirit of Sandringham LNER Class A4 LNER Class B17 LNER Class D49 LNER Class V4 LNER Class W1 LNER Gresley Classes A1 and A3 LNER Gresley K4 61994 The Great Marquess LNER Thompson Class A1/1 LNER Thompson Class A2/1 LNER Thompson Class A2/2

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