Grinding apparatus

Details Grinding apparatus Grinding apparatus

1989-06-23

1990-06-05

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

With temperature modification of material

241250, 241257R, 2412611, 2412612, B02C 708

Patent

active

049307088

ABSTRACT:
A grinding apparatus includes a frame, a driving device mounted in the frame, and an upper and a lower grinding member mounted coaxially on a vertical axis on the frame. One of the upper and lower grinding members is rotated by the driving device. The upper grinding member is movable in an upward and a downward direction. Each of the upper and lower grinding members has a grinding disc with a central opening, a disc seat holding the grinding disc, and a shaft carrying the disc seat. The grinding surface of the grinding disc of the uper grinding member is concave and the grinding surface of the grinding disc of the lower grinding member is convex so that both of the grinding surfaces of the grinding discs can come into snug contact with each other. A guiding device is provided for guiding the shaft of the upper grinding member which permits the upper grinding member to move vertically but prevents the same from lateral movement. Therefore, the upper and lower grinding members have large contact surfaces for grinding.

REFERENCES:
patent: 2342252 (1944-02-01), Claybourn et al.
patent: 2573709 (1951-11-01), Hill et al.
patent: 4081146 (1978-03-01), Yagi
patent: 4449670 (1984-05-01), Tloczynski et al.

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