Elongated-member-driving apparatus – With control means responsive to sensed condition – Work-responsive
Patent
1979-11-26
1981-05-05
Bell, Paul A.
Elongated-member-driving apparatus
With control means responsive to sensed condition
Work-responsive
227111, B27F 700
Patent
active
042653878
ABSTRACT:
An apparatus is provided for operation on a roof surface to facilitate accurate rapid placement and fastening of shingles while enabling the operator of the apparatus to remain in substantially upright posture. The apparatus carries a supply of shingles, and provides a guide which delivers each shingle to its proper position. A fastener device carried by the apparatus automatically applies fasteners to said shingles at predetermined intervals.
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patent: 2915754 (1959-12-01), Wandel
patent: 3298584 (1967-07-01), Miller
patent: 3796365 (1974-03-01), Downing
patent: 3935983 (1976-02-01), Buttriss
patent: 3972462 (1976-08-01), Evans et al.
patent: 3984040 (1976-10-01), Fry
patent: 4036422 (1977-07-01), Harvey
patent: 4053093 (1977-10-01), Thueringer
patent: 4084738 (1978-04-01), Schneider
Bell Paul A.
Rainer Norman B.
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