Washer mechanism for electrostatic precipitator

Claim 1

An electrostatic precipitator comprising, an upright panel of at least one precipitator cell, each cell having a plurality of substantially vertically disposed plate electrode elements upon which dirt particles are to be precipitated, a substantially horizontal track extending in front of the upper portions of said panel, a washer header assembly supported to depend from said track for traversing movement in front of said panel for directing a washing fluid on said elements as said header is traversed, a sprocket chain supported adjacent said track in front of said panel along the path of movement of said header assembly, a bracket extending from a lower portion of said header assembly into sliding engagement with a lower front surface of said panel responsive to gravitational forces to maintain a desired essentially vertical attitude of said header during traversing movement, and a shaft rotatably mounted on said header assembly and having a sprocket gear secured thereto in a manner to engage its teeth with the sprockets of said chain whereby said header assembly is traversed in front of said panel when said shaft is rotated.