Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
161 words
Apparatus for stacking sheets of paper, cardboard and the like, which are delivered from a sheet punching machine and consist of useful and waste portions connected together by small fillets, and separating said sheets to form separate stack portions, comprising a supply device upstream of a sheet-punching machine for supplying punched, but not yet separated, sheets on to a planar severing table, severing tools movable relative to said planar severing table for severing said sheets into sheet portions to form separate stack portions, and a planar stacking surface for receiving said separate stack portions, means for vertically moving the severing table, said planar stacking surface being formed by a pallet, and means for laterally displacing said severing table to a first position laterally displaced from the pallet while said stack portions are held in position above said stacking surface and for moving said severing table again into position above said stack portions after the latter are deposited on said stacking surface.
Claim 2
Dependent Claim
161 words
Apparatus for stacking sheets of paper, cardboard and the like, which are delivered from a sheet punching machine and consist of useful and waste portions connected together by small fillets, and separating said sheets to form separate stack portions, comprising a supply device upstream of a sheet-punching machine for supplying punched, but not yet separated, sheets on to a planar severing table, severing tools movable relative to said planar severing table for severing said sheets into sheet portions to form separate stack portions, and a planar stacking surface for receiving said separate stack portions, means for vertically moving the severing table, said planar stacking surface being formed by a pallet, and means for laterally displacing said severing table to a first position laterally displaced from the pallet while said stack portions are held in position above said stacking surface and for moving said severing table again into position above said stack portions after the latter are deposited on said stacking surface.
Claim 3
Dependent Claim
70 words
Apparatus as set forth in claim 1, further including a ledge at the level of the plane of the severing table for engaging the edge of the lowermost sheet lying on the severing table which edge is opposite said first position to support one end of the stack during withdrawal of the severing table to said first position and until the severing table has cleared the underside of the stack.
Claim 4
Dependent Claim
21 words
Apparatus as set forth in claim 2, further including at least one supplementary panel extending upwardly and connected to said ledge.
Claim 5
Dependent Claim
26 words
Apparatus as set forth in claim 3, further including at least one hold-back panel disposed on the side of the stack adjacent to said first position.
Claim 6
Dependent Claim
21 words
Apparatus as set forth in claim 4, further including a pallet carrier which is adjustable in height for supporting a pallet.
Claim 7
Dependent Claim
28 words
Apparatus as set forth in claim 1, further including a device for laying an unpunched sheet on the severing table when the latter is in said first position.
Claim 8
Dependent Claim
65 words
Apparatus as set forth in claim 6, in which said device comprises a suction device adapted to raise, above the upper surface of the severing table, the uppermost sheet of a stack of unpunched sheets lying below the under-surface of the severing table, before the latter moves to said first position, and to release the raised sheet when the severing table is below the sheet.
Claim 9
Dependent Claim
18 words
Apparatus as set forth in claim 7, in which the suction device is mounted to be swung away.
Claim 10
Dependent Claim
27 words
Apparatus as set forth in claim 8, including means for supporting said unpunched sheets and means for adjusting said supporting means for receiving various sizes of sheets.
Claim 11
Dependent Claim
69 words
Apparatus as set forth in claim 1, wherein said severing tools comprise holding stamps, spreader fingers and severing teeth, which are arranged on rods movable upwards and downwards, said holding stamps for clamping portions of large areas of the sheet, the spreader fingers for separating the sheet portions interconnected by small fillets, through destruction of the fillets, and the severing teeth for cutting off the edges of the sheet.
Claim 12
Dependent Claim
26 words
Apparatus as set forth in claim 10, further including a sensing element mounted on each rod for sensing the amount of pressure applied at the separation.
Claim 13
Dependent Claim
31 words
Apparatus as set forth in claim 11, further including means for controlling the level of the severing table in response to said sensing element to maintain the amount of pressure applied.