HYDRATTLIC WAGGON DROP . 92 Institute . Fig . 16 shows the means by which water in tbis case is utilised as an hydraulic brake . A cylinder A ( 10 or 12 inclies diameter ) has a stroke the same as the rise or fall of the cage , which is suspended from the piston rod D , at the other end of it being… … is controlled by a weigh - Fig . 16 . bar and lever . A catch lever is placed alongside the valve lever , and serves to lock
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