The brakes on the driving and free-turning pinion wheels were separately controlled, while the vacuum brake gear on the engine was only used to control the brakes of the train.
12.
The valve gear, brake gear and the hubs on the coupled wheels were fitted with soft grease lubricating nipples, while the bronze axle boxes and connecting and coupling rods had hard grease lubrication.
13.
"Following precautionary examination overnight on Silverlink County Class 321 trains, a decision has been taken on safety grounds to immediately withdraw the entire fleet for further examination to part of the train braking gear, " the company said.
14.
Shuttle program manager Bill Parsons said Monday he has launched an investigation into why the rudder speed brake gears _ all old original parts in the shuttle tails _ were never inspected in more than two decades of flight.
15.
All the rudder speed brake gears in NASA's inventory _ dating as far back as the 1970s _ are being X-rayed to see whether they were properly built, and to look for rust and microcracks, already spotted on some gears.
16.
The H class also became the first VR locomotive to feature a mechanical stoker, and boasted many other modern features such as roller bearings, hydrostatically controlled load compensating brake gear on the tender, power-operated reversing gear, American-style bar frame construction, thermic siphons, and duplex blast pipes.
