crosshead

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crosshead

[′krȯs‚hed]
(mechanical engineering)
A block sliding between guides and containing a wrist pin for the conversion of reciprocating to rotary motion, as in an engine or compressor.
(metallurgy)
A device generally employed in wire coating which is attached to the discharge end of the extruder cylinder; designed to facilitate extruding material at an angle.
(mining engineering)
A runner or guide positioned just above a sinking bucket to restrict excessive swinging.
References in periodicals archive ?
After filling the 20 crossheadings with inorganic solidified gelling foam cement, we observed the oxygen concentration on the inlet side of the gob and compared the results with the oxygen concentration when loess was used as the filling material.
We conducted experiments to develop a type of inorganic solidified foam filling material for sealing crossheadings in coal mines and analyzed the effects of the dosage of SC, dosage of fly ash, water-cement ratio, expansion ratio, and foam dosage on the filling material.
The field application demonstrated that the inorganic solidified foam filling material can seal crossheadings tightly and control the oxygen concentration in a gob effectively.