GB730124A - Improvements in roller flight conveyor - Google Patents

Abstract

730,124. Endless conveyers. WEBB CO., J. B. May 27, 1953 [May 31, 1952], No. 14711/53. Class 78 (1). A conveyer of the kind having an endless series of flights supported by a pair of spaced tracks each flight comprising a roller supported at its ends on a pair of wheels coaxial with the roller and running on the tracks, is characterized by the provision of a single endless propelling member positioned below and intermediate the ends of each roller, guide means on each side of the propelling member to define a path therefor parallel to the path of the roller supporting tracks, and means for connecting each roller to the propelling member. In the embodiment shown, the conveyer comprises rollers 16 supported at their ends by wheels 20 engaging a pair of tracks 14 and secured to an endless driving chain built up of units each consisting of a single link 11 and a double bar link 13 connected together by a pivot pin 12. Each roller is provided with a V-shaped carrier member 15 to which is welded a bracket 23 having flanges 25, 26 secured by nuts 35 to extensions 30 of the adjacent chain pivots 12. The flanges are positioned at different levels whereby the lefthand flange 25 of one bracket may overlie the right-hand flange of an adjacent bracket. On a straight run the chain is guided between the flanges 39 of a channel member 38, whilst on a curved run it is guided between rollers 40 rotatably mounted on a channel member 42 and a bar 43 shaped to conform with the curvature of the path. In a modification (Fig. 5, not shown) each roller 16 is replaced by a pair of coaxial rollers.