Hydrodemolition apparatus for overhanging inclined surfaces
AssigneeMac & Mac Hydrodemolition Inc.
InventorsGerard J. MacNeil, Gordon MacNeil, Jesse MacNeil, Vernon Bose
Life of this patent
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Abstract
A hydrodemolition apparatus provides multiple degrees of freedom enabling the treatment of overhanging or vertically inclined surfaces. A nozzle wall or track is pivotable to present the nozzles substantially normal to the overhanging or inclined surface. The nozzle wall or track is positioned proximate to the inclined surface by a combination of a vertically displaceable carriageway, a laterally displaceable carriage and an elongated member that terminates in the pivotable nozzle wall or track.
Claims4
A method of treating a surface using pressurized water, said surface having a portion that is inclined with respect to a vertical plane, comprising:
- providing an apparatus having:
- a vertically extending frame;
- a horizontally extending carriageway movable in a vertical direction along said frame;
- a carriage displaceable horizontally along said carriageway;
- an elongated member mounted to said carriage, said elongated member extendible and retractable in a direction perpendicular to said carriageway;
- and
- a straight elongated track mounted to an end of said elongated member for guiding one or more water nozzles along said track;
- said track pivotable about a horizontal axis so as to present said track at an inclination with respect to the vertical plane;
- and
- positioning said frame adjacent said surface in a first position and while said frame is in said first position:
- positioning said carriageway at a vertical height in relation to said frame, said carriage in relation to said carriageway and said elongated member in relation to said carriage, so as to present said track proximate to said portion of said surface;
- angling said track such that a longitudinal axis of said track is substantially parallel to said portion or to a tangent to said portion;
- and
- actuating said nozzles to direct pressurized water toward said portion.
Dependencies are inferred from the claim text.