(57) A roller mill for bruising, rolling or crushing cereals as an animal foodstuff comprises
a support in which a plurality of metal rollers 3, 4, 5 are arranged in a downward
succession of counter-rotatable operating pairs with the peripheries of each pair
providing a nip therebetween. The nips of the rollers form a passage through which
the cereals can pass to be progessively flattened. Means are provided to adjust the
width of gap in each nip to determine the degree of flattening to be applied to cereals
passed therebetween. At least one roller (3) is adapted to be driven.
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