Joy Mm Delaware, Inc.

Joy Manufacturing Company

James J Melhuish

Gregory M Chandler

A chain and flight conveyor adapted to be driven by a toothed sprocket comprising a pair of spaced apart, parallel driving chains, each of the driving chains comprising roller links having at least one end surface which may be drivingly engaged by the teeth of the sprocket. The roller links also have internal apertures defining drive surfaces which may be drivingly engaged by the teeth of the sprocket. The driving chains further include connecting links coupled to and interconnecting the roller links; and pins pivotally connecting the connecting links to the roller links. A predetermined corresponding number of the pins on each of the chains comprises extended flight attachment pins having pin extensions facing the opposite chain. A plurality of conveying flights are connected between the corresponding number of the pin extensions, the flights comprising a bar member having two opposite ends, four sides and a bottom surface. The bar member bottom surface has at least one indentation provided on the bar member ends, each of the indentations being adapted to receive its respective pin extensions. The flight further includes a bolt extending through the flight sides forming the indentation, the bolt being secured to the flight so that the pin extensions are held in the indentations.

Chain and flight conveyor

A mining machine is disclosed which has a vehicle body with a first end thereof having a boom pivoted for up and down rotational movement about an axis extending transversely of the vehicle. A cutter head is carried by the boom and a conveyor is mounted on the vehicular body to carry away material cut by the cutter head. A dust collection system is mounted on the boom and vehicle body to convey dust away from the cutting head area. The dust control system has duct work associated therewith which includes a generally rectangularly intake duct section associated with the boom and a generally rectangularly fixed duct section mounted on the vehicle. A transition section connects the intake and the fixed duct sections. The transition section consists of a two piece arrangement wherein each piece is hinged to the intake duct section and is capable of slidingly engaging the fixed duct section at the end thereof adjacent the boom to sealing couple the intake duct section to the fixed duct section as the boom swings upwardly and downwardly.

Growing community of inventors

Franklin, PA, United States of America

James J Melhuish