Baguley valve gear
Encyclopedia
The Baguley valve gear is a type of steam engine
valve gear
invented by Mr E. E. Baguley
the draftsman of the W.G. Bagnall
company of locomotive
manufacturers. It was patented in 1893.
The valve gear is used to operate the inlet and outlet valves of reciprocating
steam locomotives. It uses a rocking sector whose motion is driven via a link from a crankpin between the coupling
and connecting rod
s. The ends of this link are circular and offset from the pivots. On these circular bosses the sector is oscillated by a second link from the rod to an extension to the rear of the sector.
Steam engine
A steam engine is a heat engine that performs mechanical work using steam as its working fluid.Steam engines are external combustion engines, where the working fluid is separate from the combustion products. Non-combustion heat sources such as solar power, nuclear power or geothermal energy may be...
valve gear
Valve gear
The valve gear of a steam engine is the mechanism that operates the inlet and exhaust valves to admit steam into the cylinder and allow exhaust steam to escape, respectively, at the correct points in the cycle...
invented by Mr E. E. Baguley
Ernest E. Baguley
-Employment:Baguley served an apprenticeship with R & W Hawthorn Leslie, initially at their Tyneside shipyard and later at their Forth Bank, Newcastle, locomotive works. In 1890 he moved to Stafford and became Chief Draughtsman for W G Bagnall Ltd...
the draftsman of the W.G. Bagnall
W.G. Bagnall
W. G. Bagnall was a locomotive manufacturer from Stafford, England. It was founded in 1875 by William Gordon Bagnall and ceased trading in 1962 when it was taken over by English Electric Co Ltd. The company was located at the Castle Engine Works, in Castle Town, Stafford...
company of locomotive
Locomotive
A locomotive is a railway vehicle that provides the motive power for a train. The word originates from the Latin loco – "from a place", ablative of locus, "place" + Medieval Latin motivus, "causing motion", and is a shortened form of the term locomotive engine, first used in the early 19th...
manufacturers. It was patented in 1893.
The valve gear is used to operate the inlet and outlet valves of reciprocating
Reciprocating engine
A reciprocating engine, also often known as a piston engine, is a heat engine that uses one or more reciprocating pistons to convert pressure into a rotating motion. This article describes the common features of all types...
steam locomotives. It uses a rocking sector whose motion is driven via a link from a crankpin between the coupling
Coupling rod
right|thumb|connecting rod and coupling rods attached to a small locomotive driving wheelA coupling rod or side rod connects the driving wheels of a locomotive. Steam locomotives in particular usually have them, but some diesel and electric locomotives, especially older ones and shunters, also have...
and connecting rod
Connecting rod
In a reciprocating piston engine, the connecting rod or conrod connects the piston to the crank or crankshaft. Together with the crank, they form a simple mechanism that converts linear motion into rotating motion....
s. The ends of this link are circular and offset from the pivots. On these circular bosses the sector is oscillated by a second link from the rod to an extension to the rear of the sector.