Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Patent
1978-11-01
1980-02-12
Knowles, Allen N.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
171 63, 171132, 209935, 209241, B07C 512
Patent
active
041879465
ABSTRACT:
This invention relates to a machine for harvesting market-size worms from their bedding that lays in the bottom of a flat-bottomed trough-like bed. The machine is self-propelled and travels lengthwise of the beds riding atop their side walls. A novel digger is provided on the front end of the unit made up of a rotating reel with rake-forming tined shafts, the tines of which remain in parallel relation at all times due to a pair of independently rotating eccentrically positioned hubs that rotate in unison therewith and are operatively connected thereto by a series of parallel links. The digger rakes the bedding along with the worms contained therein back onto a conveyor belt that carries the mixture upwardly and rearwardly and deposits it onto a shaker screen inclined downwardly and rearwardly above the open trough. The lead or forward section of the screen is of fine mesh adapted to separate the market-size worms from the mixture consisting of the bedding and undersize worms thus returning the latter to the bed. The market-size worms continue on to the trailing edge of the screen where a coarsely meshed section drops them through onto a transversely-running conveyor belt that discharges them into a waiting receptacle carried alongside the bed on the moving harvester.
REFERENCES:
patent: 2837209 (1958-06-01), Forbes
patent: 2940240 (1960-06-01), Schaaf et al.
patent: 4050518 (1977-09-01), Gilmour
patent: 4122001 (1978-10-01), Snyder
Knowles Allen N.
Spangler, Jr. Edwin L.
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