Abstract: The stop and go conveyor includes a driver sprocket and a driven sprocket from which the conveyor is directly driven. On both the tension or drive side of the chain and the slack side of the chain are a pair of fixed idler sprockets and between them is a pair of idler sprockets mounted on a idler sprocket carrier which reciprocates through a complete cycle during each revolution of the driver sprocket. During the stop period of the driver sprocket, chain is being taken up by the driver sprocket by action of the reciprocating member which supplied extra chain. During the second half of the stroke, the reciprocating member uses extra chain, whereby the driven sprocket rotates faster than the driver sprocket. In adition, the reciprocating member moves in such a fashion that, when the driven sprocket starts to rotate it accelerates slowly to a peak angular velocity and the decellerates back down to zero. Its velocity vs. time is represented by a sine curve, an ideal situation for material handling.

Abstract: A carton closing machine including a longitudinal chain with lugs that carry the carton along a longitudinal path, folding down the carton top and passing the front flap thereof over a glue wheel to a cross-feed which carries the cartons laterally with the side flaps passing over a pair of glue wheels and into a rectangular stack defined by four vertical plates. An elevator raises each carton up into the stack to fold down the front and side flaps and then retracts to receive the next carton. Two pairs of belts at the upstream end of the machine carry the cartons to the conveyor chain and a backup chain with small lugs moves along with and between the second pair of belts to boost any carton that may slip on the surface of the belt. The first pair of belts is at a slightly higher elevation so that the backup lugs pass freely beneath cartons supported thereon to engage behind cartons on the second pair of belts.

Abstract: A box forming machine wherein box blanks move along a slideway while glue wheels rotating below the slideway apply spots of glue to each carton blank before it reaches the folding station. A carriage, which is slidable over the slideway, has pusher fingers to push the blank and also carries a rack which engages a gear on the glue wheel shaft. The pitch diameter of the gear is equal to the outer diameter of the glue wheel so that the box blank, and the glue applying surfaces of the glue wheels move at precisely the same speeds at any given instant whereby the glue is applied in precise areas determined by the shape of the glue applying surfaces.