Cutter for asphalt paving

Details Cutter for asphalt paving Cutter for asphalt paving

1977-04-27

1978-05-16

Purser, Ernest R.

Mining or in situ disintegration of hard material

Miscellaneous

30168, 125 36, E21C 3726, E01C 2309

Patent

active

040895629

ABSTRACT:
An asphalt-paving cutter tool, adapted to be driven by a power-operated hammer mechanism, has an upper shank adapted to be received and held in the socket of the hammer mechanism, and a wide lower cutter portion terminating at the lower end in a chisel-like cutting edge. Intermediate the upper shank and the lower cutter portion is a wedging-and-reaction portion having divergently-upward sidewalls inclined at an angle of the order of 15.degree.-35.degree. relative to the vertical. This portion has two functions. It develops a wedging force to widen the cut, and it develops a reaction force in the blade-lifting direction. These two forces facilitate removal of the cutting tool from the asphalt paving after the cut has been made.

REFERENCES:
patent: 1452037 (1923-04-01), Gleasner
patent: 1891222 (1932-12-01), Cornett
patent: 2302069 (1942-11-01), Stephens
patent: 2900178 (1959-08-01), Harrison et al.
patent: 3258295 (1966-06-01), Ives et al.

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