Manure conveying scraper apparatus

Conveyors: power-driven – Conveyor section – Pusher conveyor and separate load support surface

Patent

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Details

198748, B65G 2510

Patent

active

043196780

ABSTRACT:
A scraper assembly is connected at a forward and rearward end to a cable driven by a reversible double drum cable drive. The scraper assembly includes a scraper blade pivotally connected to a shaft secured at each end to a shoe, or runner. A strut extends forwardly and rearwardly from each shoe terminating in centrally disposed front and rear guide members. A drive linkage, connected at forward and rearward ends to the cable, is pivotally connected to the blade and has front and rear slide members which are slideably received within the front and rear guide members, respectively. The slide members have stops at their ends defining a limited range of sliding movement between the guide members and the drive linkage. The sliding movement of the slides in the guides pivots the scraper blade, with the slide stops transmitting a drive force to the guides at the end of the slide travel to move the blade forwardly or rearwardly. The drive unit has a motor which reversibly rotates the cable drums through a gearbox, sprockets and endless chains. The motor is controlled by an electrical control mechanism which includes a forward sensor to stop and reverse the motor when the scraper reaches the front of the manure collection alley; and a rearward sensor to stop the motor and start a timer when the scraper reaches the rear of the manure collection alley. The timer is adjustable and reactivates the forward drive of the motor after a set period of time. The cable is routed from the drive unit to the scraper assembly through a cable course defined by pulley blocks. An adjustable tensioning means, including a tension indicator, applies a continuous positive tension to the cable.

REFERENCES:
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patent: 3240323 (1966-03-01), Kitson
patent: 3530832 (1970-09-01), De Setnick
patent: 3641830 (1972-02-01), Stofer
patent: 3693782 (1912-06-01), Thoennes
patent: 3860109 (1975-01-01), Benzmiller
patent: 3978737 (1976-09-01), Bailey

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