Solid material comminution or disintegration – Processes – Subjecting material to impact by moving comminuting surface
Patent
1978-12-26
1980-07-01
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
Subjecting material to impact by moving comminuting surface
241 35, 241 73, 2411017, 2411862, 2411864, 241189R, B02C 13286, B02C 2500
Patent
active
042102898
ABSTRACT:
A tub grinder suitable for comminuting forage crops as feed for livestock comprising a rotating circular tub having a floor with an opening therein through which a hammermill communicates for chopping the forage. When the forage is fed too quickly and overloads the hammermill, a governor senses that the rotational speed of the hammermill has been reduced and operatively signals the tub driving mechanism to slow the speed thereof, thus feeding forage at a lesser rate and allowing the hammermill to recover. A similar but opposite process occurs when the hammermill increases in speed to the extent that it is able to handle additional forage. A dampening mechanism is used in conjunction with the governor and functions to allow the tub rotation to slow immediately upon the hammermill being overloaded, but somewhat delays the increase of the tub rotation when the hammermill can receive additional forage. The operation of the dampening mechanism reduces apparatus damaging oscillations which are commonly found in conventional machinery of this type.
REFERENCES:
patent: 1137272 (1915-04-01), Moyle
patent: 2732138 (1956-01-01), Forth
patent: 2747859 (1956-05-01), Rager
patent: 2908491 (1959-10-01), Suozzo
patent: 3528616 (1970-09-01), Krolopp et al.
patent: 3912175 (1975-10-01), Anderson
patent: 3966128 (1976-06-01), Anderson et al.
patent: 4033515 (1977-07-01), Barcell et al.
patent: 4106706 (1978-08-01), Burrows
Haybuster Parts Book, Haybuster Manufacturing, 12-1978.
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