Solid material comminution or disintegration – Processes – Miscellaneous
Patent
1976-05-20
1978-02-21
Custer, Jr., Granville Y.
Solid material comminution or disintegration
Processes
Miscellaneous
241 83, 241DIG10, 209260, 209311, B02C 1900
Patent
active
040748677
ABSTRACT:
A method and apparatus for removing form sand from a casting box and for comminuting and sand clods formed by the sand removed from the box, in which the casting box is placed on a grate having two grate portions, preferably tiltable about spaced tilting axes between a first position, in which the grate portions are located in a common substantially horizontal plane for receiving a filled casting box on its upper surface, and a second position in which the two grate portions extend upwardly inclined from a center line of the grate. The grate portions are vibrated in the first and in the second position by vibrators connected thereto to remove first the form sand from the casting box and to hold, after removing of the casting box and the casting from the grate, any sand clods, which have not been passed through the grate during the first vibration step, between the upwardly inclined grate portions so that the sand clods will rub against each other and the grate portions to be comminuted thereby during the second vibration step.
REFERENCES:
patent: 978589 (1910-12-01), Hutchinson
patent: 1694211 (1928-12-01), Fernandez
patent: 1931657 (1933-10-01), Hetzel
patent: 2020131 (1935-11-01), Behnke
Custer, Jr. Granville Y.
Striker Michael J.
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