(under subclass 525) Apparatus wherein the flow-affecting means comprises an adjustable (e.g., repositionable) gravity section (e.g., a pivotably-mounted gravity flow path) which is moved (raised) from an inclined, discharging attitude to a less inclined (e.g., horizontal), nondischarging attitude and back (lowered), by a power- driven conveyor which passes beneath the gravity section in a discharge-receiving relationship. The shifting is caused by the engagement of a conveying element (e.g., a bucket) or other component of the power-driven section with the nonpower-driven section or an attachment thereto, and the result is an interruption of the flow of material whenever no one of the conveying elements is in a proper position to receive same.
(1) Note. The structures of this subclass frequently include additional means to affect the volume of flow, usually by controlling its duration.
SEE OR SEARCH THIS CLASS, SUBCLASS:
533, for a flow-affecting means under this heading wherein a power- driven section may intermittently contact a gravity section, but wherein the purpose is to encourage flow on or in that section rather than to cause the flow to begin or cease as in this subclass.
