B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
193/5
B65G 11/00 (2006.01) B65G 67/06 (2006.01)
Patent
CA 1226832
ABSTRACT A load out chute system for controlling and directing the flow of relatively large quantities of bulky material, such as coal, is disclosed. The chute system includes an upper chute defining an upper flow path and a hydraulically operated sliding gate valve positioned above the upper chute for controlling the supply of material thereto. A lower chute defines a lower flow path and is capable of pivotal movement from a horizontal stored position to an operative position wherein the upper and lower flow paths are aligned. The lower chute is mounted by means of a triangular skirt pivotal secured to an overhead structure. The triangular skirt includes an arcuate bottom plate enabling the lower chute to cover the upper chute discharge opening when the lower chute is being pivoted toward its horizontal stored position, thereby preventing material spillage from the upper chute. A corresponding curved retainer plate is operative to cover the lower chute inlet opening during pivoting movement for preventing spillage. A blade gate valve operated by hydraulic cylinders, is positioned at the bottom portion of the lower chute, the blade being operative to control material flow along the lower flow path. By positioning the blade gate valve in proximity to the bottom discharge opening of the lower chute, precise topping off at the end of the loading cycle may be achieved and material spillage is minimized. The topping off feature is particularly applicable in a leading and trailing two chute system disclosed for filling a moving open top box car where material flow through the trailing chute is controlled to top off the load. Rapid pivotal movement of the lower chute is achieved with a power cylinder interconnected to the chute with a cable and pulley arrangement. A power winch is also interconnected with the chute by the cable means and is capable of incrementally adjusting the lower flow path to ensure proper alignment with the upper flow path.
530398
Pebco Inc.
Perley-Robertson Hill & Mcdougall Llp
LandOfFree
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