| 摘要 |
A cleaning head for a surface covering material cleaning machine made up as a nozzle embodying a pair of chambers separated by a transverse plate member, one chamber being a cleaning chamber having a jet stream of cleaning fluid with an incoming air stream comingling therewith to form an aerated stream, the chambers flaring forwardly being coextensive at their forward ends and the cleaning chamber decreasing in height forwardly, the chamber communicating at the free end of the plate member, the end portion of the plate member having a terminal portion the width of said chambers whereby the other chamber forming a suction chamber draws upon the cleaning fluid causing it to accelerate substantially horizontally in engaging the surface portion and/or passing through the body portion of the material being cleaned and then being withdrawn upwardly about the end of the plate member to pass into and become discharged through the suction chamber.
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