Machine suitable for breaking concrete pavement in place

Details Machine suitable for breaking concrete pavement in place Machine suitable for breaking concrete pavement in place

1981-07-13

1984-03-27

Byers, Jr., Nile C.

Road structure, process, or apparatus

Apparatus

With in situ means for both comminuting and treating, e.g.,...

299 37, 299 69, 173 90, 173139, E01C 1934, B25D 1728

Patent

active

044390564

ABSTRACT:
For progressively breaking-in-place concrete of roadways or the like, a vertically extending diesel power driver, of a type used as a pile driver, but with a concrete-breaking shoe forming its lower end, is advanced by a towed chassis. Guide angles at the upper portion of the power driver, cooperating with a guide bar vertically disposed, guide the power driver in its conventional rythmic bobbing, with sufficient looseness to permit the power driver to have a pendulum like swinging action. This swinging action results from relatively intermittent movement of the bottom portion of the power driver while the top portion is advanced more steadily by the chassis. Shoe-towing means extend forwardly from the shoe to a hanging link which is resiliently biased forwardly to tow the shoe. The biasing is provided by long-throw cushions. The forwardly extending shoe-towing means is flexible, to prevent damage when the shoe is driven deeply. The guide angles have moderately long, slightly convex faces to withstand pounding by the guide bar.

REFERENCES:
patent: Re25401 (1963-06-01), Clynch
patent: 894269 (1908-07-01), Hendron
patent: 1654014 (1927-12-01), Proctor
patent: 2335172 (1943-11-01), Cornett
patent: 2659583 (1953-11-01), Dorkins
patent: 2659584 (1953-11-01), Dorkins
patent: 2893299 (1959-07-01), Moir
patent: 3172483 (1965-03-01), Spitzer
patent: 3253522 (1966-05-01), Piper

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