Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1977-02-28
1978-11-21
Eickholt, E. H.
Brushing, scrubbing, and general cleaning
Machines
Brushing
37 43R, 15 49C, 15 82, E01H 102, A46B 1300
Patent
active
041259157
ABSTRACT:
A board brush apparatus for use on a self-propelled ice-resurfacing machine of the type having a frame supporting apparatus for shaving the surface of the ice and removing the shavings, and including a source of pressurized hydraulic fluid. The apparatus includes a mounting bracket that is adapted to be attached to the frame on one side of the machine, and swingably connected to this frame is an arm having a motor-driven rotary brush at the outer end thereof. The arm is swingable between a laterally extending operational position and a retracted position, and is moved from one position to the other by a hydraulic cylinder which is attached at one end to the bracket. The piston rod projecting from the other end of the cylinder is connected to the arm through an intermediate shock absorber. The motor driving the brush is a hydraulic motor, which is connected to the source of fluid pressure on the machine by a fluid line that is also connected to that end of the cylinder which, when pressurized, extends the cylinder to swing the arm out to operative position. A control valve is connected into the fluid lines, and when the valve is turned to one position, the cylinder is extended and the motor is simultaneously started up. Turning the valve to the other position causes the cylinder to retract and the brush motor to shut off.
REFERENCES:
patent: 2631314 (1953-03-01), Fitzpatrick
patent: 2655678 (1953-10-01), Keogh
patent: 2732573 (1956-01-01), Hyland
patent: 3066745 (1962-12-01), Smith et al.
patent: 3622205 (1971-11-01), Zamboni
Eickholt E. H.
Frank J. Zamboni & Co. Inc.
Kidder Herbert E.
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