[1264]. Rotary screen, with rolling bevil gear motion. See [No. 711].

[1265]. Rotary horizontal screen.

[1266]. Shaking or jigging screen. Sometimes supplied with a blast or aspirator to carry off the lighter particles.

[1267]. Eccentric or angular barrel screen or mixer.

[1268]. Air blast sizing or graduating apparatus.

[1269]. Edison’s magnetic sizing apparatus for iron or steel particles.

[Larger plate.]

[1270]. Graduating or sizing screens, either fixed as shown or kept in motion like [No. 1266].

See also Concentrating and Separating, [Section 26].