Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1978-05-25
1980-02-19
Husar, Francis S.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29160, 228158, 228161, 228182, B23K 3102
Patent
active
041887000
ABSTRACT:
The cylindrical rotating grate of an attrition mill is constructed by welding a group of bars in close spaced parallel relationship, and then rolling this assembly into a cylindrical configuration. The meeting ends of this configuration are then welded, and an opening is preferably cut from the rolled assembly. The area cut out in the process of forming the opening is used as a cover. The grate structure includes solid abutments interengageable with the cover to hold the cover in position against the large forces encountered during the operation of the mill, with relatively light securing means adapted to hold the cover in engagement with these abutments. A housing surrounding the rotating grate is provided with an opening through which the machine is charged with material, and this opening is covered by a curtain preferably provided with battens and a weight to hold it in position. A vacuum is applied to the interior housing for the removal of dust, which assists in holding the curtain in position.
REFERENCES:
patent: 414767 (1889-11-01), Fox
patent: 3276108 (1966-10-01), White
patent: 3514833 (1970-06-01), Dunston
patent: 3726208 (1973-04-01), Brengman et al.
patent: 3859713 (1975-01-01), Fiedler
patent: 4045853 (1977-09-01), White
patent: 4069979 (1978-01-01), Morita et al.
Husar Francis S.
Morse Glenn B.
Ramsey K. J.
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