![](http://www.alamy.com/thumbs/6/F9FA26C8-35A8-40C1-936C-4203DC9A4475/BG83M7.jpg)
Traction Engine
Close up of the cylinder block of a traction engine showing the whistle safety release valve and the centrifugal flyball governor
Size: 3413px × 5120px
Photo credit: © Seapix / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ball, block, brass, brasswork, cast, centrifugal, close, closeup, control, cylinder, engine, flyball, governor, iron, power, safety, steam, traction, valve, vapour, water, whistle