Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1991-09-13
1992-07-14
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
51177, B24B 2302, F21C 2516
Patent
active
051297086
ABSTRACT:
A manually pushed stripping machine which includes a wheeled undercarriage, an upper cutter head assembly pivotally mounted at the rear of the undercarriage and a rearwardly extending handle secured to the upper assembly. The undercarriage additionally includes a manually adjustable bolt located at the front for selectively varying the height of a pair of cutter heads having a plurality of cutting fingers attached thereto. Additionally, a cutter head angle adjustment fixture is located on the rear portion of the undercarriage. A handle latch member having a forward end pivotally connected to the undercarriage includes an angulated slot which engages and outwardly projecting bolt located on the upper assembly so that when the handle is lowered to a horizontal position, the bolt engages and locks the rear portion of the angulated slot to prevent a further pivoting of the upper assembly on the undercarriage. This results in the cutter heads being tilted up for easy maintenance or, alternatively, the entire machine can thereafter be lifted by the handle and wheeled about without the cutter heads touching the floor.
REFERENCES:
patent: 2624896 (1953-01-01), Atkin
patent: 3102372, Vezner
patent: 4398737 (1983-08-01), Harding
patent: 4614380 (1986-09-01), Allen
patent: 4668017 (1987-05-01), Peterson et al.
patent: 4758050 (1988-07-01), Peterson et al.
Bagnell David J.
Equipment Development Company, Inc.
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