Rotary tool

Details Rotary tool Rotary tool

1985-04-17

1987-01-06

Leppink, James A.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Floor-working

299 40, 299 41, 125 5, E01C 2308

Patent

active

046341889

ABSTRACT:
The invention is directed to a rotary tool for attachment to a machine for working and smoothing an even surface of a base made of cement, concrete or similar hard material. The machine includes a multi-wheeled vehicle and at least one tool drive shaft arranged on the vehicle. The tool drive shaft defines a longitudinal axis extending perpendicularly to the base to be worked and has a tool holder for holding the rotary tool. The rotary tool includes a plate on which a plurality of cutter-wheel units are mounted about the periphery thereof. Each of the cutter-wheel units includes a frame attached to the plate and axles mounted so as to define respective rotational axes parallel to the plate and substantially parallel to a radius passing through the longitudinal axis of the tool drive shaft. A plurality of cutter wheels is mounted on the axles so as to rotate freely with respect thereto.

REFERENCES:
patent: 1836638 (1931-12-01), Wright et al.
patent: 3179103 (1965-04-01), Doran
patent: 3260254 (1966-07-01), Collins
patent: 3263666 (1966-08-01), Collins
patent: 3422579 (1969-01-01), Rogge et al.
patent: 3430718 (1969-03-01), Lawrence
patent: 3550575 (1970-12-01), Metzger
patent: 3825361 (1974-07-01), Steiner
patent: 4188696 (1980-02-01), Collins et al.
patent: 4275928 (1981-06-01), Jackson

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