File:Slipper guide crosshead (Heat Engines, 1913).jpg

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Fig. 55

A Crosshead of the "slipper" or "shoe guide" form, as used on some stationary engines.

The crosshead supports the end of the piston rod outside the cylinder, where the connecting rod little end is attached. Its function is to resist the transverse forces (vertical here) from the angle connecting rod, against the horizontal piston rod. The direction of these forces predominently depends on the direction of rotation. For stationary engines that only run in one direction, the crosshead may be arranged so that the majority of the force is downwards and so taken on the larger surface of the crosshead and guide bar. This requires the engine to "run over", where the top of the flywheel always moves away from the cylinder.
Source Scan from Prof. William Ripper, Sheffield Univ. d.1937 (1913 edition of 1909 book. Originally published in 1889 as "Steam", but later expanded to cover internal combustion engines and so re-titled.) Heat Engines, London: Longmans, pp. fig. 55
Author Andy Dingley (scanner)
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current12:10, 16 June 2009Thumbnail for version as of 12:10, 16 June 2009804 × 491 (32 KB)wikimediacommons>Andy Dingley{{Scans from 'Heat Engines', 1913 }} Category:Steam engine crossheads <!--{{ImageUpload|basic}}-->

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