1976-08-09
1977-05-17
Jenkins, Robert W.
259 14, B28C 520, B28C 540
Patent
active
040237796
ABSTRACT:
A fibrous concrete batch forming system including a bin for receiving fibers having an outlet partially closed by a grate, a toothed member cyclically movable such that the teeth thereon enter the bin to extract substantially individual fibers therefrom through the grate, a fiber separator having an inlet and an outlet with a plurality of rotary shafts with intermeshed teeth between the inlet and the outlet for further separating fibers, a first conveyor for receiving the fibers from the bin and conveying the same to the separator inlet, a second conveyor for receiving the fibers from the separator outlet, a rotary mixing drum having an inlet and mounted for rotation about an axis at an acute angle to its longitudinal axis, a mounting for the second conveyor so that the same may move between a position wherein it enters the drum inlet and a position out of the inlet, dispensers for depositing predetermined concrete ingredients on the second conveyor and a further dispenser for depositing other concrete ingredients within the drum including a funnel pivotally mounted for movement between a position wherein a dispensing end of the funnel is within the drum inlet and a position wherein the dispensing end is remote from the drum inlet and out of the path of reciprocation of the second conveyor.
REFERENCES:
patent: 1660280 (1928-02-01), Thomson
patent: 2230880 (1941-02-01), Brown
patent: 2533852 (1950-12-01), Tietig
patent: 3667736 (1972-06-01), Carroll
Caterpillar Tractor Co.
Jenkins Robert W.
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