Abstract: An easily assembled and disassembled modular construction for an air conveyor comprises standardized side, bottom and top walls adapted to be assembled together, at the point of use if so desired, to produce a conveyor section, with individual sections being joined together to produce conveyors of desired length and configuration. The top wall constitutes the wall over which the conveyed objects move, the bottom and top walls can be provided in varying widths, and the standardized side walls are configured to receive and hold the top and bottom walls, to have brackets mounted thereon, which brackets can carry auxiliary elements such as side guide rails or top covers for the conveying space, and to receive splice plates and other elements, all preferably through the use of headed fasteners the heads of which are received in key slots provided on the outer surfaces of the side walls.

Abstract: Apparatus for loading rows of containers onto a loading station in which the containers are pushed onto the loading station in rows, preferably with the containers in adjacent rows being staggered relative to one another, the leading container row engages a wall which substantially uniformly frictionally resists the movement of rows onto the loading station, and in which side walls which supportingly engage the containers at the ends of the rows are moved with the rows as the loading station is filled.

Abstract: Movement of the case conveyor is terminated with the leading flap aligned with a flap engaging element mounted above the case on the end shaft. The shaft is rotated to cause the element to engage and partially open the leading flap. The shaft is supported by a carriage which is movable along a track extending in the direction of conveyor movement. As the element reaches its final rotational position, movement of the carriage along the track is initiated, causing the element to pivot the leading flap to the open position. Movement of the conveyor is then resumed as the carriage returns to its initial position. The rotational and translational movements of the element are independently actuatable and adjustable.

Abstract: A guide mechanism for a case packer is characterized by a mounting member, a plurality of guide member fingers, and a plurality of expansion springs, each spring connecting a different finger to the mounting member and also biasing the bottom of the finger towards a converging position with the other finger bottoms. The springs act substantially vertically, enabling substantially unlimited universal pivoting of the fingers relative to the mounting member and thereby reducing the likelihood of finger breakage in the event of a jam.

Abstract: In a case packer, wide mouth bottles are conveyed to a platform where they are arranged in alignment with the cells in the case and thereafter held in position by suction cups. The platform is rotated to suspend the bottles, mouth down, over the case. The bottles are gravity fed into cells in the case formed by upstanding partitions. A guide mechanism is interposed between the platform and the case to correct misalignment of the partitions and to guide the bottles into the cells. The guide mechanism includes, for each cell, a pair of rigid guide members aligned with opposing corners of the cell. The guide members are pivotally mounted to a grid, in opposing spaced relationship, such that the members are movable between a closed, closely opposed and preferably mutually engaging position, inclined towards one another, and an opened mutually separated, generally vertical position. Each member includes first and second sections.

Abstract: The operations of the palletizer are automatically controlled by a prerecorded control program. The palletizer includes a vertical shaft, a retractable draw plate located above the shaft and a drive mechanism for moving a hoist along the shaft. After a tier of cartons is formed on the unretracted draw plate, a tier sheet inserter extracts a single tier sheet from a stack and places the sheet on top of the tier. The draw plate is then retracted, placing the tier on the hoist and the hoist is lowered until the tier is aligned with the banding mechanism, which is located within the shaft. The banding mechanism places a strap around the tier, tensions the strap and fastens same. The hoist is then repositioned to accept the next tier as same is deposited thereon by the draw plate.

Abstract: Conveyor apparatus comprises a series of spaced rollers defining thereover a travel path for articles and an article stop located adjacent and downstream with respect to one of the rollers and movable between an extended position and a retracted position. In its extended position, the article stop extends into the travel path to obstruct passage of articles from the roller, and in its retracted position the article stop is spaced from the travel path to permit passage of articles from the roller. A roller stop is secured to the article stop and movable therewith, the roller stop being operatively disengaged from the roller when the article stop is in the retracted position and operatively engaged with the roller when the article stop is in the extended position. Operative engagement of the roller stop with the roller inhibits rotation of the roller and thus reduces the momentum with which an article engages the article stop.

Abstract: In a palletizer, various load patterns are achieved through the arrangement of tiers or layers of rows of cartons, each constituent row therein having a given width. Conveying means are provided with a first side at which rows of cartons are received at spaced intervals and a second side. The conveying means, when actuated, is effective to transport the rows of cartons thereon towards the second side thereof. Means, responsive to the number of rows of cartons present on the conveying means, is effective, subsequent to the entry of each of the incoming rows of cartons at the first side of the conveying means, to actuate the conveying means to transport the rows presently thereon a distance substantially equal to the width of the incoming row, when less than R rows are present on the conveying means, and a selected distance sufficient to move the leading row of cartons on the conveying means to the second side thereof, when R rows are present thereon.

Abstract: An apparatus for guiding and cushioning a plurality of articles deposited into a container positioned beneath it. It is comprised of a rigid framework of spaced, elongated members having guides positioned at intervals along the members. The guides are tapered upward and extend outward on either side of the elongated members to define passages through which the articles pass, which passages are bounded by members on two sides and by the extended guide portions on the other sides. Flexible fingers extending downwardly and toward the center of each passage have mounting portions fastened to the elongated members by the tapered guides; preferably two fingers extend into different passages from a common mounting portion. The tapered guides align each article with a passage where the flexible fingers cushion and precisely position the article as it moves into the container. Each mounting portion can be resiliently fastened in place to provide adjustability of the cushioning effect by adjusting the resiliency.

Abstract: Apparatus for inverting an article being transported by a conveyor includes means extending into the travel path of the article to restrict the forward motion of the leading portion of the article relative to the forward motion of the trailing portion of the article, thus causing the leading portion to rise relative to the trailing portion until the article is partially inverted to an overcenter position, and means to permit the overcenter leading portion to descend, preferably maintaining engagement with the article as the leading portion descends, thereby to controllably deposit the article on the conveyor in a fully inverted position.

Abstract: The present invention relates to dividing a stream of articles into several streams. The operation is accomplished by moving articles along a horizontally swinging conveyor. The operation of the conveyor may be changed by changing a programming card. Thus the conveyor may be programmed to provide for a various number of rows of various widths.

Abstract: The apparatus includes a frame and means for moving a container relative to the frame. A series of force exerting rollers are adjustably mounted on the frame and engagable with the container such that they are effective to exert a force on the crease line of the flap as the container is moved relative to the frame. In this manner, the crease is manipulated or worked such that the flap will remain in the closed position. Rollers are also provided for preventing deformation of the container surface adjacent the crease line as the force exerting rollers act thereon. Some of the force exerting rollers have a surface oriented at 45.degree. from the top of the container and thus act directly on the crease line. The deformation preventing rollers have a surface parallel to the surface of the container adjacent thereto. A force exerting roller may be combined with a deformation preventing roller to form a single roller having a flanged portion and a cylindrical portion.

Abstract: Apparatus is provided for sensing the position of the top of a carton situated on an upwardly moving hoist beneath the draw plate of a palletizer. The carton top has a flap thereon which, in some instances, is partially opened and which will require a given force to close it such that it does not interfere with the sensing of the position of the top of the carton. The apparatus terminates the upward movement of the hoist when the top of the carton is in the desired position and then withdraws to permit the draw plate to deposit the next tier of cartons on the hoist. The apparatus comprises a support situated below the draw plate and a movable carriage mounted on the support.