Chain conveyors with standardized elements

Claim 1

Chain conveyor with interchangeable standardized elements swivel mounted to a central body, comprising a motor and reduction-gearing unit carried by said central body, a driving shaft coupled to said motor and reduction-gearing unit and supporting at least one driving sprocket associated with a conveyor chain, a bearing-supporting frame structure adapted to pivot about said driving shaft, supporting said shaft and said motor and reduction-gearing unit and being rigid on either side with an outer housing enclosing bearing cases of said driving shaft, idler sprockets and chain tensioning devices for at least one conveyor chain, said central body further comprising a pair of said side flanges consisting of longitudinal members assembled at their ends by cross members, each flange comprising in its central portion a notch of substantially semi-circular configuration which is centered to the median line of the flange, wherein said flanges bear with their lower edge, across said central notch, upon said outer housings of the frame structure, each flange having an upper portion formed with tapped holes receiving screws for securing said frame structure, said frame structure being provided to this end with arcuate slots concentric to the driving shaft and engageable by said screws, thus permitting the adjustment of the inclination of said frame structure in relation to the axis of the driving shaft which remains constantly horizontal.