Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1989-11-14
1992-03-24
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
30170, 156584, 173 24, 182 45, 248237, E04D 1502, B32B 3118
Patent
active
050981650
ABSTRACT:
A roofing materials removal device provides a guide system which secures the device and the operator in position on an inclined roof so that the roof can be traversed at various positions along different travel paths while supported. The removal device comprises a light-weight, durable, wheel supported frame, dual handles for leverage, an electric motor positioned low on the frame to give the device balance and stability. An angled blade reciprocating and riding on linear bearings is connected to spring-mounted tension bars. As the springs force the rear end of the tension bar upward, the forward end of the tension bars pivot downward causing the serrated, leading edge of the blade to slide between the roof covering material and the roof deck. The blade follows the contour of the roof deck dislodging roofing material including nails, roofing felt and shingles. The guide system is positioned on the opposite side of the roof ridge from the removal device. The guide system comprises a track, a vertical support post assembly, a carrier which traverses the length of the track, and an adjustable support system which secures the machine frame and the operator to a desired position. An on-off ramp allows the roofing materials device to be moved to the desired position through the use of the guide system.
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Jacobs James L.
Rogers Larry D.
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