Abstract: An apparatus for the separation of sheets includes a transport structure for exerting a force on an outermost sheet of a pack of sheets in the direction of transport and a separation structure for exerting a force on at least one other sheet of the pack against the direction of transport to prevent the other sheet from moving along with the ourtermost sheet in the direction of transport. The apparatus also includes a treating device for treatment of the engaging surface of the transport structure and/or the separation structure to increase the frictional coefficient of the engaging surface. Thus, a more reliable separation effect can be obtained especially over a longer period.

Abstract: An apparatus for the separation of sheets includes a transport structure for exerting a force on an outermost sheet of a pack of sheets in the direction of transport and a separation structure for exerting a force on at least one other sheet of the pack against the direction of transport to prevent the other sheet from moving along with the outermost sheet in the direction of transport. The apparatus also includes a treating device for treatment of the engaging surface of the transport structure and/or the separation structure to increase the frictional coefficient of the engaging surface. Thus, a more reliable separation effect can be obtained especially over a longer period.

Abstract: An apparatus for the separation of sheets comprising a transport structure (11; 61; 111; 161; 211; 311) for exerting a force on an outermost sheet (1) of a pack of sheets (2) in a direction of transport (10) and a separation structure (12; 62; 112; 162; 212; 312) for exerting a force on at least one other sheet of the pack against the direction of transport (10) to prevent the other sheet from moving along with the outermost sheet (1) in the direction of transport (10). Because the apparatus comprises a treating device (23, 24; 77; 123; 173; 232; 323, 384, 385, 387, 388) for treatment of the engaging surface (25, 26; 175) of the transport structure and/or the separation structure to increase the roughness of the rough surface (25, 26; 175), a more reliable separation effect can be obtained especially over a longer period.

Abstract: For rotating a flat object, a rotor is provided with a transport element for engaging an object in the rotor. A transmission element is coupled to the rotor. Between the transmission element and the transport element of the rotor, there is a transmission for causing the transport element to rotate relative to the rotor in response to rotation of the transmission element relative to the rotor. As a coupling structure between the rotor and the transmission element is arranged for retaining the transmission element relative to the rotor when rotation of the rotor is allowed, and for releasing rotation of the transmission element relative to the rotor when a switch is made to retaining the rotor, a fast, friction-low operation is enabled.