Abstract: The invention is a sheet feeder including a skimmer and a separator. The separator is designed for advancing the engaged sheet while separating any adjacent sheets. In one embodiment, the separator has a driven infeed roller nipped with a drag or separator roller. The separator roller also includes a recoil mechanism. The drag normally slips and permits the separator roller to be driven forward by the infeed roller, which cocks the recoil mechanism, then allows the infeed roller to advance a sheet. The separator roller recoils backward when a multifeed of two or more sheets is engaged between the advancing and separator rollers. The sheet separator can have as its sheet-engaging member a roller sleeve. The roller sleeve can be axially slidable on the rotatable element for ready installation on and removal from the rotatable element.

Abstract: The invention is a sheet feeder for engaging and removing a sheet of paper or other material from a stack and feeding it along a path. The sheet feeder can include a sheet separator designed for advancing the engaged sheet while retarding any adjacent sheets. The separator has a driven advancing roller nipped with a driven retarding roller coupled to its drive by a friction clutch. The clutch normally slips and permits the retarding roller to be driven forward by the advancing roller when one or no sheets are engaged between the advancing and retarding rollers. The clutch engages and drives the retarding roller backward so long as a multifeed of two or more sheets is engaged between the advancing and retarding rollers.

Abstract: The invention is a sheet feeder for engaging and removing a sheet of paper or other material from a stack and feeding it along a path. The sheet feeder can include a skimmer, a bumper, a separator, and a guide plate. The skimmer can include a timing belt or other positive drive, so the drive motor turns the drive roller to feed sheets in a uniform manner. The skimmer element can be laterally reciprocated to assist in separation of the top sheet from lower sheets in a stack. The bumper extends across the feed path and has a guide surface positioned to confront the leading edges of the sheets of the stack and direct the leading edge of an advancing engaged single sheet away from the remainder of the stack. The separator is designed for advancing the engaged sheet while retarding any adjacent sheets. In one embodiment, a friction roller rotates on one side of the feed path, advancing a single sheet forward along the feed path.

Abstract: The apparatus is used to remove a generally rectangular container from an unloading device that places the container in a predetermined position. The container has a bottom surface, upstanding sidewalls and forward and rear endwalls. The apparatus includes a base portion for supporting the apparatus and a container removing arm pivotally attached to the base portion configured to releasably engage the container and remove the container from the unloading device. Also included are container engaging clamps operatively connected to the container removing arm arranged to contact and releasably engage at least one of the bottom surface, the upstanding sidewalls, the forward endwall, and the rear endwall of the container. A powered assembly pivotally displaces the container removing arm when the clamps releasably engage the container. A controller is operatively coupled to the powered assembly to selectively control forward and backward pivoting of the arm.