Abstract: A feeding mechanism comprising an accumulating area mechanism for feeding sheets into the accumulating area to form a stack, exit mechanism, mechanism for moving the stack of sheets from the accumulating area through the exit mechanism, support mechanism are provided to keep the trailing edge of a previous sheet fed in the accumulating area uplifted until the leading edge of a subsequent sheet is moved beneath a previous sheet.

Abstract: A sheet feeding mechanism having a frame support assembly and an accumulating area mounted on the frame support assembly. The accumulating area has a feeding mechanism and a release mechanism. The feeding mechanism adapted to feed sheets into the accumulating area to accumulate a stack of sheets. A mechanism for moving a stack of sheets out of the accumulating area past the release mechanism. A mechanism for changing the length of the accumulating area to permit the accumulating area to receive sheets of different lengths.

Abstract: A sheet and stack feeding mechanism comprising an accumulating area, a mechanism for feeding sheets into the accumulating area, a pair of exit rollers and a mechanism for moving the stack of sheets out of the accumulating area through the exit mechanism, the exit roller being resilient to permit stacks of various thickness to pass therethrough.

Abstract: A sheet feeding mechanism comprising feeding sheets to an accumulating area. The accumulating area being at a first lateral plane and comprising spaced side rails at said first lateral plane. The accumulating area is between the side rails. The side rails are movable to a second lateral plane spaced from the first lateral plane. The distance between the side rails may be adjusted and after adjustment, the side rails are moved back to the first lateral plane.

Abstract: A feeding mechanism comprising an accumulating area. A mechanism for feeding at least one sheet into the accumulating area. An exit mechanism and a mechanism for moving sheets from the accumulating area through the exit mechanism. The moving mean comprises a kicker mechanism at one end of the accumulating area mounted for reciproactable rotary movement to push a stack of sheets through said exit mechanism. A release gate mechanism is provided in front of a stack being accumulated in the accumulating area and mechanism is provided to activate and move the release gate out of the way to permit a stack of sheets to be moved out of the accumulating area.

Abstract: A sheet feeding mechanism having a frame support assembly and an accumulating area mounted on the frame support assembly. The accumulating area has a feeding mechanism and a release mechanism. The feeding mechanism adapted to feed sheets into the accumulating area to accumulate a stack of sheets. A mechanism for moving a stack of sheets out of the accumulating area past the release mechanism. A mechanism for changing the length of the accumulating area to permit the accumulating area to receive sheets of different lengths.

Abstract: A sheet feeding mechanism comprising an accumulating area having main feeding mechanism and stack release mechanisms. The main feeding mechanism adapted to feed sheets into the accumulating area to accumulate said sheets into a stack. A moving mechanism to move a stack of sheets out of the accumulating area past the stack release mechanism. An auxiliary feeding mechanism movable relative to the accumulating area to permit the accumulating area to receive shorter sheets.

Abstract: A sheet feeding mechanism including a singulating assembly and mechanism for accumulating sheets in a stack adjacent the singulating assembly. The singulating assembly comprises a retard roller and a guard adjacent thereto. The retard roller has a first bearing surface at a lower position. A mechanism is provided for feeding single sheets from the stack past the bearing surface of the retard roller and beneath it. The retard roller is adjustable to move the first bearing surface away from its lower position and replacing it with a second bearing surface at the lower position.

Abstract: A sheet feeding mechanism including a singulating assembly and mechanism for accumulating sheets in a stack adjacent the singulating assembly. The singulating assembly comprises a retard roller and a guard adjacent thereto. The retard roller has a first bearing surface at a lower position. A mechanism is provided for feeding single sheets from the stack past the bearing surface of the retard roller and beneath it. The retard roller is adjustable to move the first bearing surface away from its lower position and replacing it with a second bearing surface at the lower position.

Abstract: A feeding mechanism comprising an accumulating area mechanism for feeding sheets into the accumulating area to form a stack, exit mechanism, mechanism for moving the stack of sheets from the accumulating area through the exit mechanism, support mechanism are provided to keep the trailing edge of a previous sheet fed in the accumulating area uplifted until the leading edge of a subsequent sheet is moved beneath a previous sheet.

Abstract: A sheet and stack feeding mechanism comprising an accumulating area, a mechanism for feeding sheets into the accumulating area, a pair of exit rollers and a mechanism for moving the stack of sheets out of the accumulating area through the exit mechanism, the exit roller being resilient to permit stacks of various thickness to pass therethrough.

Abstract: An envelope machine having a roller assembly with a groove in the roller and a ring assembly removably mounted in the groove. The ring assembly has a pair of half-rings segments removably mounted in the groove, each of which are adapted to mesh and interfit with each other to form the ring assembly. The ring assembly lies below the surface of the roller and each ring segment has a holding notch at one end and a key assembly at the other end, with the holding notch of one ring segment adapted to interfit and mesh with the key assembly of another ring segment.

Abstract: A turnover mechanism for handling sheets having a pair of belts, said belts are spaced one above the other, sheet turnover tubes interposed between the two belts, one of the turnover tubes facing in a direction opposite to the other turnover tubes, the sheets being fed to one of the belts, the belt moving the sheets to a turnover tube whereby the turnover tube inverts the sheets and transfers the sheets from one belt to the other belt. The belts and turnover tubes are mounted in an invertable module.

Abstract: A sheet feeding mechanism comprising a feed belt assembly, a conveyor for feeding sheets to the feed belt assembly, the feed belt assembly having a belt driven first by a first drive roller, an idler roller assembly having an idler roller spaced from the first drive roller and driven by the first drive roller and a feed switch. The idler roller is mounted for pivotal movement toward and away from the feed switch whereby the feed switch mechanism will be activated by the idler roller assembly to permit sheets to be fed. The feed belt assembly comprises a take-up belt assembly and a delivery belt assembly and said conveyor moves sheets against the take-up assembly.

Abstract: An envelope machine having a roller assembly with a groove in the roller and a ring assembly removably mounted in the groove. The ring assembly has a pair of half-rings segments removably mounted in the groove, each of which are adapted to mesh and interfit with each other to form the ring assembly. The ring assembly lies below the surface of the roller and each ring segment has a holding notch at one end and a key assembly at the other end, with the holding notch of one ring segment adapted to interfit and mesh with the key assembly of another ring segment.