Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1996-04-09
1998-04-21
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
30170, 81 45, E04D 1502
Patent
active
057410470
ABSTRACT:
A shingle stripping tool having a wheel supported frame including a rearwardly extending handle with a grip at the upper end. A power transmission includes a drive shaft extending along the handle which is driven by a motor. A reciprocally driven blade is supported on a sliding fulcrum. The blade is connected to the gear wheels at an eccentric arrangement whereby the blade is driven in a reciprocal and rotating motion to strip and clear debris.
REFERENCES:
patent: 2519138 (1950-08-01), Katz
patent: 3726565 (1973-04-01), Oliverius
patent: 4837933 (1989-06-01), Chapman
Bagnell David J.
Nelson Gregory J.
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