first locomotive fitted with the Walschaerts valve gear was built in 1849 at the Belgian Tubize workshops. Egide Walschaerts was awarded a gold medal, honorable...

Walschaerts valve gear - most common valve gear on later locomotives, normally externally mounted. Also known as Heusinger valve gear. Deeley valve gear...

Baker valve gear was the main competitor to Walschaerts valve gear for steam locomotives in the United States. Strictly speaking it was not a valve gear but...

link gear. Walschaerts valve gear invented by Belgian railway mechanical engineer Egide Walschaerts in 1844 becoming the most widely used valve gear in...

Egide Walschaerts (21 January 1820 – 18 February 1901) was a Belgian mechanical engineer, best known as the inventor of the Walschaerts valve gear used...

with Walschaerts valve gear, but it was later found that some of the losses of the Walschaerts locomotives was due to leakage of steam past the valve heads...

Caprotti valve gear, in 1948; the BR Caprotti Black Fives. These were numbered 44738-57, 44686 and 44687. The Black Fives had been fitted with Walschaerts valve...

valve gear. As well as introducing new two-cylinder designs, he set about rebuilding Gresley locomotives with separate sets of Walschaerts valve gear...

valve gear was briefly popular on steam locomotives in the United States. It combines elements of the Walschaerts and Baker patterns. Southern valve gear...

1901 that company developed the Bagnall–Price valve gear which was primarily based on Walschaerts valve gear. Baker identifies one common feature retained...

oscillating-cam poppet valves, which were operated by the Walschaert valve gear the locomotives were already equipped with. The poppet valve was also used on...

a three-cylinder design with only two sets of Walschaerts valve gear, the Gresley conjugated valve gear, produced smooth running and power at lower cost...

the cylinder. Walschaerts W.G. Bagnall claimed that Bagnall–Price valve gear eliminated some of the complexity of the Walschaerts gear, specifically the...

remains the only surviving C&NW steam locomotive to be equipped with Walschaerts valve gear. Between 1901 and 1908, the Chicago and North Western (C&NW) Railroad...

41 kN). Although efficient, the Caprotti gear proved less reliable than the regular Walschaerts valve gear and required more frequent, more skilled maintenance...

Originally built with Baker valve gear and alligator crossheads, the Ps-4s were eventually re-equipped with Walschaerts valve gear in the 1930s and multiple-bearing...

this particular type of Walschaerts valve gear system as a whole. Problems often arise in incorporating a Walschaerts valve gear into the design of tank...

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...

those built at the same time with Walschaerts' valve gear. The aim of the experiment was to find out if a valve gear having variable lead (as opposed to...

housed a large superheater, regulator valve and snifting (anti-vacuum) valves. The N1 also retained Walschaerts valve gear on both outside cylinders. The main...

the driving wheels, forcing Mason to use an outside valve gear (generally the Walschaerts valve gear). Additionally, the reversing shaft had to be mounted...

separate valve gear, this left very little space for the conventional inside set of motion. This prompted Bulleid to design a new miniaturised Walschaerts motion...

this was largely superseded by Walschaerts valve gear and similar patterns. Early locomotive designs using slide valves and outside admission were relatively...

Walschaerts valve gear, whereas the valve of the inside cylinder was operated indirectly from the outside valves by means of Gresley conjugated valve...

26-inch (660 mm) stroke, in line with the bogie centre As built, Walschaerts valve gear was applied directly to the outside cylinders and a form of derived...

locomotives received Walschaerts valve gear and were classified D7 (N-4-d and N-4-e) and D9 (N-4-c); two received Young valve gear and were classified...

valves, Greenly-Joy or Walschaerts valve gear LMS Royal Scot Class 4-6-0 tender engine, three cylinders, piston-style slide valves, Walschaerts valve...

the PRR Altoona Works and had Walschaerts valve gear, while No. 5699 was built by Baldwin and had Caprotti valve gear. Although successful, these locomotives...

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...

Walschaerts valve gear and Belpaire fireboxes and were the first of Hendrie's designs to have superheaters and piston valves instead of slide valves....