| 31. | The engine has crosshead bearings so that the always-vertical piston rod allows a tight seal under the piston.
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| 32. | The primary lead motion is provided by the crosshead arm ( 9 ) and the union link ( 11 ).
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| 33. | This can be avoided by the use of crossheads and also using thrust bearings to isolate the engine from end loads.
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| 34. | Corliss valves on all cylinders . [ Dobson block motion on HP and IP ] Air pump driven from each crosshead.
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| 35. | The crankcase of the engine, together with the crosshead trunk guide, was enclosed and provided with oil splash lubrication.
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| 36. | Vertical return connecting rod engines used the original'vertical'layout, with the cylinder facing upwards to the crosshead.
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| 37. | Their feedwater pumps, attached to the right hand side of their spectacle plates, were actuated from the piston crossheads.
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| 38. | The feedwater pump, attached to the right hand side of the spectacle plate, was actuated from the piston crosshead.
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| 39. | In this way, the transverse forces are applied only to the crosshead and its bearings, not to the piston itself.
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| 40. | The piston rods connected with independent crossheads gliding upon steel girders supported at their ends by standards bolted to the floor beams.
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