Device for the cyclic rearrangement of a pile of sheets

Apparatus for cyclically rearranging a pile of sheets, comprising a first frame part having a viewing window for allowing the sheet at one end of said pile to be viewed, and a second frame part reciprocable relative to and parallel to said window, and means for removing, upon each reciprocation, an individual sheet at one end of the pile leaving a remainder of the pile and for adding the individual sheet to the other end of the pile, said means for removing including a separator bar on one of said frame parts for retaining the remainder of the pile, said separator bar extending transverse to the direction of reciprocation adjacent one end of said one frame part and having a first side facing toward said window and a second side facing away from said window, said individual sheet being removed across one of said sides of said separator bar and returned to the pile across the other of said sides of said separator bar, wherein during each reciprocation, a sheet facing said window is moved along said window parallel to said direction of reciprocation together with said second frame part, means on said second frame part for acting on an edge of said window-facing sheet transverse to said direction of reciprocation which moves along said window to keep said edge, during said movement, spaced from said window, said means for acting including hold-down members on said one frame part spaced from said separator bar to define a sheet passage slot for said individual sheet between said separator bar and said hold-down members.

Apparatus for cyclically rearranging a pile of sheets, comprising a first frame part having a viewing window for allowing the sheet at one end of said pile to be viewed, and a second frame part reciprocable relative to and parallel to said window, and means for removing, upon each reciprocation, an individual sheet at one end of the pile leaving a remainder of the pile and for adding the individual sheet to the other end of the pile, said means for removing including a separator bar on one of said frame parts for retaining the remainder of the pile, said separator bar extending transverse to the direction of reciprocation adjacent one end of said one frame part and having a first side facing toward said window and a second side facing away from said window, said individual sheet being removed across one of said sides of said separator bar and returned to the pile across the other of said sides of said separator bar, wherein during each reciprocation, a sheet facing said window is moved along said window parallel to said direction of reciprocation together with said second frame part, means on said second frame part for acting on an edge of said window-facing sheet transverse to said direction of reciprocation which moves along said window to keep said edge, during said movement, spaced from said window, said means for acting including a hold-down member on said separator bar, said hold-down member having a side facing said window-facing sheet and another side facing away from said window-facing sheet, and control means for passing an end edge of said individual sheet from one hold-down member side to the other.