Abstract: The invention relates to an apparatus for feeding and stacking single sheets for a printing office machine. Singel sheets (32) may be selectively called up from a plurality of magazine units (30), which are disposed vertically one after another. The single sheets are guided to the printing cylinder (12) by way of a horizontally disposed feed-in conveyor track (20) traveling below the magazine unit (30). The printed single sheets are stacked in sorted fashion in stacking receptacles (70) by way of a horizontally disposed delivery track (66,68) provided with controllable delivery diverters (72) and traveling below the feed-in conveyor track (20), the stacking receptacles (70) being disposed vertically one after another below the delivery track. The induction channel leading from the feed-in conveyor track (20) to the printing cylinder (12) crosses the ejection channel leading from the printing cylinder (12) to the delivery track (66,68).

Abstract: A printing machine, such as a typewriter, printer, etc., including a platen having wound thereon a sheet for printing characters and symbols thereon and provided with an automatic sheet feeding apparatus including a cassette containing a plurality of sheets automatically fed to the platen. The cassette can be inserted into or withdrawn from the sheet feeding apparatus through an opening in the front of the sheet feeding apparatus. The sheet feeding apparatus enables a sheet to be selectively fed manually, if desired, besides enabling sheets to be fed automatically from the cassette. The sheet feeding apparatus enables a paper bail to be mechanically operated in conjunction with its operation of automatically feeding sheets to the platen.

Abstract: Only the topmost sheet (12) of a stack is fed from a supply box (10) by transportation rolls (16) by way of a separating arrangement (18) to a pair of transportation rolls (20, 22). This pair transports the sheet further until the ray of a light (66) is interrupted and as a result the coupling (26) is uncoupled. As soon as the platen (32) driven by a line stepped motor (30) assumes a starting position, the coupling (26) is again engaged. The peripheral speeds of the rolls (20, 22) and of the platen (32) corresponds to one another so that the platen (32) together with a contact pressure roll may accept the sheet. After lettering, the sheet is transported by the pair of rolls (34, 36) into a file box. The pair of transportation rolls (20, 22) as well as the transportation rolls (16) are driven via a belt (50, 54) by platen drive (30).

Abstract: A printer feeding and stacking mechanism for feeding a printer selectively with individual sheets of paper from one of two feeding hoppers holding stacks of individual sheets and sequentially depositing the typed sheets in a stacking hopper. The device features a selectively operable feeding mechanism mounted between the two feeding hoppers; mechanism for moving the feeding hopper walls between operating and loading positions; and mechanism for sequentially stacking the printed sheets into the stacking hopper.

Abstract: A device for feeding sheets one at a time from a sheet storage to a printer mechanism and for receiving the sheets one at a time from the printer mechanism and storing them in a printed sheet storage area, the feeding and receiving sections being indepdendent of the operating mechanisms of the printer mechanism, and the feeding and receiving mechanisms including means to move a sheet edge beyond a decision threshold and to thereafter release the sheet in a manner allowing it to move either from the feeding mechanism to the printing device or from the printing device to the printed sheet storage.

Abstract: This apparatus removes individual sheets of paper or the like from a stack regardless of the thickness of each sheet. A sheet supply stack support is journaled in a housing in see-saw fashion. A first set of sheet separating rollers is arranged above the downstream end of the support as viewed in the direction of sheet movement. A spring urges the downstream end of the support upwardly and thus sheets on the support against a separating roller. A table is located substantially adjacent the downstream end of a sheet and for cooperation with a pair of sheet separating and transport rollers. Two sheet guides are arranged upstream and downstream, for example, of a platen. The supply stack is arranged upstream of the first sheet guide. The sheet receiving stack is arranged downstream of the platen and so that an upper sheet guide member forms part of a sheet receiving stack tray located substantially above the sheet supply stack.

Abstract: An improved sheet feeding mechanism for an automatically driven typewriter. The feeder mechanism includes a housing which is mounted on the typewriter and defines a supply magazine for storing a stack of sheets to be typed and a finish magazine for storing typewritten sheets. When it is desired to feed a sheet through the platen of the typewriter, a platen clutch is disengaged to disconnect the platen from the typing mechanism and connect the platen to a feed roll. A pressure plate is actuated to force the pack of sheets in the supply magazine against the feed roll, and the feed roll will scrub the outermost sheet from the pack and move the sheet downwardly through a tapered chute and around the platen. After passing around the platen, the leading edge of the sheet actuates a sensing mechanism to release the pressure plate and engage the platen clutch to thereby begin the automatic typing on the sheet.