Stephenson valve gearW
Stephenson valve gear
Baguley valve gearW
Baguley valve gear
Baker valve gearW
Baker valve gear
Bulleid chain-driven valve gearW
Bulleid chain-driven valve gear
Caprotti valve gearW
Caprotti valve gear
Gab valve gearW
Gab valve gear
Stephenson valve gearW
Stephenson valve gear
Gresley conjugated valve gearW
Gresley conjugated valve gear
Hackworth valve gearW
Hackworth valve gear
Walschaerts valve gearW
Walschaerts valve gear
Holcroft valve gearW
Holcroft valve gear
Joy valve gearW
Joy valve gear
Kuhn slideW
Kuhn slide
Piston valve (steam engine)W
Piston valve (steam engine)
Valve gearW
Valve gear
Southern valve gearW
Southern valve gear
Stephenson valve gearW
Stephenson valve gear
Valve gearW
Valve gear
Walschaerts valve gearW
Walschaerts valve gear