Abstract: A shuffle feed structure comprising first and second sets of shuffle feed mbers supported on their respective frames for reciprocating movement so as to advance articles lying thereon in single file order. The feed members are constructed with adjacent surfaces including offset portions so as to prevent articles being advanced from aligning with and falling through the space between the individual flights.

Abstract: Apparatus for conveying and rotating articles 90.degree. while being conveyed along a predetermined path with rotation being achieved by contacting a forward corner of the article for pivoting it partially as the extending side will be grasped by a side-facing belt to complete rotation and propel the article forward.

Abstract: Apparatus for bringing together a tray and separate lid to form a carton wherein the lid is moved into position above the tray and the lid side flaps are bent down along the tray side panels and fastened in place to form the carton.

Abstract: Apparatus and method of forming a tray which includes a bottom panel, four upstanding side panels and corner gussets for sealing and holding the bottom panel end flaps and side flaps in the formed position including means for receiving a stack of precut blanks from which the tray is formed, feeding one at a time, the blanks through a glue station for the deposition of a predetermined glue pattern on the corner gussets, and thereafter folding the blank into a tray in a die and mandrel wherein in successive steps the end flaps are folded, the corner gussets are influenced inward and the side flaps are folded to complete the tray. The die and mandrel assembly serves to hold the tray momentarily after formation to permit the glue to adhere and thereafter functions to strip the tray from the mandrel and hold it in a position satisfactory for removal from the assembly.

Abstract: Apparatus for color grading of liquid or solid products, such as fruits, vegetables, etc., said apparatus employs an electronic device which measures the ratio of reflectance of the products at two separated parts of the light spectrum. The device views either a calibration surface or the product being tested so that between tests the operator can see whether or not the instrument is holding its calibration and adjust it if necessary.

Abstract: A shuffle feed sizing structure wherein articles are progressed from valley to valley over a shuffle feed mechanism and as they progress the article advancing face of the shuffle feed member provides a sizing opening of a given width so that the articles small enough to fall through the opening are discharged downwardly beneath the shuffle feed at this point. Various widths of sizing opening are provided between the faces of the shuffle feed as required and the largest articles are discharged over the end. Means are also provided for ejecting articles from a sizing opening if they tend to become wedge or if they remain in front of the sizing opening but are too large to pass through the opening.