The Hackworth valve gear is a design of valve gear used to regulate the flow of steam to the pistons in steam engines. It is a radial gear, with an actuating...

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...

Joy's gear is similar to Hackworth valve gear but has a compensating mechanism which corrects for "the slight inequality in the motion of the valve arising...

Marshall valve gear may refer to: Marshall valve gear, a modified Hackworth valve gear, patented in 1879 by Marshall, Sons & Co. J. T. Marshall valve gear, any...

engineer Tony Hackworth (born 1980), English footballer Travis Hackworth, American politician Hackworth valve gear, locomotive valve gear This page lists...

on the business after the death of his father. J. W. Hackworth patented the Hackworth valve gear in 1859. Today he has a school named after him in his...

Gab valve gear was an early form of valve gear used on steam engines. Its simplest form allowed an engine to be stopped and started. A double form, mostly...

invention of Timothy Hackworth on his Royal George of 1828. Owing to the limited metallurgy of the period, Hackworth's first spring valves used an accordion-like...

Early locomotives used a simple valve gear that gave full power in either forward or reverse. Soon the Stephenson valve gear allowed the driver to control...

means of various patent valve gears with a separate, variable cutoff expansion valve riding on the back of the main slide valve; the latter usually had...

1935 Mona, LNER 0-6-2T style tank engine, with inside cylinders and Hackworth valve gear, subsequently published in book form, British Model Maker, 1956/57...

calculators and gear industry pioneer Nigel Gresley (1876–1941) – steam locomotive engineer, developed Gresley conjugated valve gear Ravi Grover (born...

the first engineer to use the balanced slide valve on locomotives, and later applied a form of expansion gear. In 1840 he was appointed locomotive superintendent...

power through a pair of coupling rods, making use of a loose eccentric valve gear. Locomotion No. 1 is believed to have been the first locomotive to use...

trains Arturo Caprotti, Italy, invented rotating cam valve gear for locomotives, the Caprotti valve gear André Chapelon, France, built the most powerful steam...

compared to the slide valve, which typically used 10% of an engine's power. Corliss used automatic variable cut off. The valve gear controlled engine speed...

build a new flywheel locomotive. 1811 (1811): Blackett instructs Timothy Hackworth to build hand-cranked chassis to prove feasibility of smooth rail for...

available. A similar problem affected safety valves, causing them to rely on dead weights or Hackworth's bulky stack of leaf springs, rather than the...

The earliest recorded example was the Royal George, built by Timothy Hackworth for the Stockton and Darlington Railway in 1827. Other early examples...

1825. Stephenson also built the Lancashire Witch in 1828, and Timothy Hackworth built Sans Pareil which ran at the Rainhill Trials in 1829. The latter...

Clayton incorporated several improvements, notably to the steam circuit and valve gear. The new locomotives were built over several batches at Eastleigh Works...

slow freight locomotives. By 1830, Stephenson's past employee Timothy Hackworth had re-designed his return-flued Royal George as the return-tubed Wilberforce...

Blackett, Hedley would have been familiar with Trevithick's engine. Timothy Hackworth's 0-6-0 Royal George of 1827 also used a return-flued boiler, although...

cranks to the crank axle (the axle on the left in the illustration). The valve gear took a similar route to the drive. One effect of this was it had many...

tapered boilers, long smokeboxes, boiler top feeds, long-lap long-travel valve gear, and many standardised parts such as wheels, cylinders and connecting...

relating to boilers was originally devised by another person: Timothy Hackworth's 1830 design for the boiler of his locomotive The Globe was later patented...

being built, but he was permitted to act as consultant. The Stephenson valve gear was developed in 1842 by Stephenson employees in Newcastle. The six-coupled...

elongated oval. The classic exhaust design for a steam locomotive began with Hackworth's invention of the blastpipe, placed centrally within a tall chimney. Victorian...

diversion of funds to support the Iraqi war effort. GMCL President Donald Hackworth was initially quoted as stating the company would try to sell the Malibus...

looking Orenstein patent valve operating system, which like the Hackworth and Klug types was based on Joy's radial valve gear. 1473 1905 0-4-4-0 Mallet...