Plate mill for pebbles, gravel or like materials

Details Plate mill for pebbles, gravel or like materials Plate mill for pebbles, gravel or like materials

1976-02-25

1977-04-19

Lake, Roy

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

241253, 2412592, 2412593, B02C 710, B02C 716

Patent

active

040183955

ABSTRACT:
A plate mill for crushing gravel, pebbles or the like, of the type comprising two rotating discs or plates is provided with means for adjusting the separation of the plates while they are in motion so that the required adjustment in relation to the size of the output particles from the mill can be achieved readily. A first one of the plates is carried by a rotating cylinder, and is spaced from the cylinder by spacers; a second plate is carried between the end of the cylinder and the first plate at the end of a shaft mounted by means of a ball and socket coupling in a piston which is axially movable within the rotating cylinder. Oil passageways leading to the interior of the cylinder direct pressure fluid, preferably lubricating oil, to the underside of the piston so that the second plate can be urged thereby toward the first plate.

REFERENCES:
patent: 641654 (1900-01-01), Sturtevant
patent: 2221342 (1940-11-01), Butler
patent: 2884036 (1959-04-01), Symons
patent: 2947485 (1960-08-01), Woodruff et al.
patent: 3222038 (1965-12-01), Ashcraft

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