An accumulating portal conveyor comprises a conveyor belt, a frame for supporting and guiding the belt, which frame includes a first helical path and a second helical path spaced from the first helical path, a bridging path and a return path. Under operating conditions the belt successively follows the first helical path upwardly, the bridging path, the second helical path downwardly and the return path, and such that in transverse direction of an upright plane through central centerlines of the first and second helical paths. The bridging path includes a static part having a fixed position with respect to the helical paths and a dynamic portion displaceable in transverse direction of the upright plane to change the path length of the belt. At least a portion of the return path is displaceable for compensating the change of the path length of the belt at the bridging path.

A high-angle conveyor system is provided. The high-angle conveyor system includes a primary conventional conveyor, a lower high-angle conveyor and an upper high-angle conveyor. The lower high-angle conveyor is disposed within the primary conveyor. Therefore, a portion of the primary conveyor is sandwiched in between the lower high-angle conveyor and the upper high-angle conveyor. Both of the lower high-angle conveyor and the upper high-angle conveyor are disposed at a high angle. Material is transported along the primary conveyor and then transported at a high angle in between the lower high-angle conveyor, the primary conveyor, and the upper high-angle conveyor.

A sheet transport system comprising an endless carrier belt that has a predetermined stiffness and is arranged to carry the sheets towards an end of a conveyer path where the sheet is separated from the carrier belt by passing this belt around a separating member that has a predetermined curvature, wherein the carrier belt runs in parallel with an endless conveyer that has a larger stiffness than the carrier belt and, at the end of the conveyer path, has a smaller curvature than the separating member.

A sheet transport system comprising an endless carrier belt that has a predetermined stiffness and is arranged to carry the sheets towards an end of a conveyer path where the sheet is separated from the carrier belt by passing this belt around a separating member that has a predetermined curvature, wherein the carrier belt runs in parallel with an endless conveyer that has a larger stiffness than the carrier belt and, at the end of the conveyer path, has a smaller curvature than the separating member.

A conveying device with an extensively extended conveying element that is led in a revolving manner along a conveying direction, is deflected at the head-ends of the conveying device and is laterally enclosed by side closure beams. The conveying device includes a drive device with a drive motor to drive the conveying element. The drive device is arranged between the two head-ends, between the side closure beams, and between the upper conveying section and the lower return section of the conveying element. The drive device includes a drive element that is arranged in a revolving manner about two deflection pivots spaced from one another in the conveying direction, and is driven by the drive motor. The drive element supports the upper conveying section of the conveying element, which is arranged at the top, and with this forms a contact fit for transmitting a drive force onto the conveying element.

A conveying device with an extensively extended conveying element that is led in a revolving manner along a conveying direction, is deflected at the head-ends of the conveying device and is laterally enclosed by side closure beams. The conveying device includes a drive device with a drive motor to drive the conveying element. The drive device is arranged between the two head-ends, between the side closure beams, and between the upper conveying section and the lower return section of the conveying element. The drive device includes a drive element that is arranged in a revolving manner about two deflection pivots spaced from one another in the conveying direction, and is driven by the drive motor. The drive element supports the upper conveying section of the conveying element, which is arranged at the top, and with this forms a contact fit for transmitting a drive force onto the conveying element.

A high-angle conveyor system is provided. The high-angle conveyor system includes a primary conventional conveyor, a lower high-angle conveyor and an upper high-angle conveyor. The lower high-angle conveyor is disposed within the primary conveyor. Therefore, a portion of the primary conveyor is sandwiched in between the lower high-angle conveyor and the upper high-angle conveyor. Both of the lower high-angle conveyor and the upper high-angle conveyor are disposed at a high angle. Material is transported along the primary conveyor and then transported at a high angle in between the lower high-angle conveyor, the primary conveyor, and the upper high-angle conveyor.

A conveyor section for transportation or accumulation of articles such as cartons and totes includes a pair of spaced, opposing side rails, vertical frame members attached transversely between the pair of opposing side rails, and live rollers transversely attached for rotation between the opposing side. An upstream end idler and a downstream end idler both having a vertical axis of rotation are attached at respective upstream and downstream ends of the conveyor section. A drive belt is vertically elongate and supported for horizontal looping between the upstream and downstream end idlers. The drive belt supported and guided by the vertical frame members such that a drive loop side and a return loop side are horizontally positioned under the live rollers. The drive loop side of the drive belt is at selectively engageable to an undersurface of the live rollers. A drive motor is operatively coupled to drive the drive belt.

A laboratory automation system is described, comprising pairs of conveyor belts accommodating devices for conveying biological samples and actuated by a motorized traction device. Said motorized traction device includes a first and a second motor, each adapted to actuate both said pairs of belts a central control unit being adapted to control the simultaneous or alternating actuation of said motors.

A laboratory automation system is described, comprising pairs of conveyor belts accommodating devices for conveying biological samples and actuated by a motorized traction device. Said motorized traction device includes a first and a second motor, each adapted to actuate both said pairs of belts a central control unit being adapted to control the simultaneous or alternating actuation of said motors.