• WordNet 3.6
    • n crosshead metal block that connects to a piston; it slides on parallel guides and moves a connecting rod back and forth
    • n crosshead a heading of a subsection printed within the body of the text
    • ***
Webster's Revised Unabridged Dictionary
    • n Crosshead (Mach) A beam or bar across the head or end of a rod, etc., or a block attached to it and carrying a knuckle pin; as the solid crosspiece running between parallel slides, which receives motion from the piston of a steam engine and imparts it to the connecting rod, which is hinged to the crosshead.
    • ***
Century Dictionary and Cyclopedia
    • n crosshead A person whose skull is marked with the crossed coronal and sagittal sutures; a skull so marked.
    • n crosshead In mechan., a beam or rod stretching across the top of something; specifically, the bar at the end of a piston-rod of a steam-engine, which slides on ways or guides fixed to the bed or frame of the engine, and connects the piston-rod with the connecting-rod, or with a sliding journal-box moving in the cross-head itself.
    • n crosshead In printing, same as cross-heading.
    • ***


In literature:

The condensers form part of the engine frame, and have guide faces cast on for the crosshead shoes.
"Scientific American Supplement, No. 430, March 29, 1884" by Various
The line at Weston consist of a series of posts, 60 ft. apart, with two lines of rods or ropes, supported by crossheads on the posts.
"Scientific American Supplement, No. 417" by Various
Besides, the engine crosshead's worn and jumps about.
"Lister's Great Adventure" by Harold Bindloss
To the crosshead is also coupled a lever having its fulcrum on a bracket attached to the boiler; this lever serving to work the feed pump.
"Scientific American Supplement, Vol. XIX, No. 470, Jan. 3, 1885" by Various
The rack and pinions are of cast steel, as is also the tiller crosshead.
"Scientific American Supplement, No. 1178, June 25, 1898" by Various
The piston rod and the crosshead obviously passed through its gun deck in a large hatch.
"Fulton's "Steam Battery": Blockship and Catamaran" by Howard I. Chapelle
The piston rod and the crosshead obviously passed through its gun deck in a large hatch.
"Smithsonian Institution - United States National Museum - Bulletin 240" by Anonymous