Patent GB-445670-A (GB)
Title: Improvements in paper-adjusting devices for typewriters, calculating and like machines
IPC: B41J11/36
Filed: 1935-08-09
Abstract: 445,670. Typewriters &c. WANDERER-WERKE VORM. WINKLHOFER & JAENICKE AKT.-GES., Sch÷nau, near Chemnitz, Germany. Aug. 9, 1935, No. 22514. Convention date, Aug. 17, 1934. [Class 100 (iv)] Line-spacing mechanism sheet-guiding arrangements.-In typewriting, calculating, or like machines having adjustable stops for arresting the sheets to enable printing to be effected on any desired line, an adjusting-member for setting the stops is provided for each line. The machine is provided with a normal keyboard, platen roller 4, paper-gripping rollers 7, 10, 16, rear paper-guide 5, and a front paper-guide 11 mounted on pivoted arms 12 so that it can be swung back. Sheets 14 inserted from the front enter a passage formed by upper and lower plates 17, 20 and 15, 19 respectively. The upper plate 20 is slotted to form guides for flat stop bars 23, the lower edges of the strips formed by the slots in the plate 20 being chamfered to prevent any interruption in the feeding of the sheets. The bars 23 are also guided in slots in a frame 25 and, by means of oblique slots 24, Fig. 3, on rods 26, being normally withdrawn from the passage for the sheets by springs 28. One end of each bar is adapted to be engaged by a corresponding bell-crank lever 29 under the influence of a projection 31 on key-levers 32, 33 guided for vertical movement in plates 35, 36. On depression of a key 34 in a bank arranged at the side of the machine, the corresponding bar 23 is depressed to form a stop for a sheet inserted in the machine. A pivoted spring-pressed rail 39 is adapted to engage and retain in depressed position the key-levers 32, 33, a depressed key being released on the next actuation of a key or on actuation of a release key 200. In order to arrest the sheets near the platen roller, stopbars 40, Figs. 2 and 4, are mounted in a slotted frame 49 beneath the plate 15, being normally held in depressed inoperative position by springs 42. The bars are raised in order to project extensions 43 through slots in the plate by bell-crank levers 52 pivoted in the frame 49 and actuated by key-levers 45, 48. The extensions 43 on adjacent bars are staggered relatively to one another. The frame 49 is detachably secured to side walls 73, 74 by brackets 75, and the frame 25, which carries the plates 19, 20, is also detachably secured to the walls 73, 74 by screws 61. The plate 19 normally rests on a bar 69 attached to the wall 73 by a pin-and-slot connection. The bar is under the influence of a spring 72 which, when the frame is removed, lifts the vertical arm of the bar into a position to prevent the movement of the levers 29 and keys 34. The plate 19 also rests on a rectangular frame 63 provided with,notches 58 for the reception of bars carrying the carriage stops, which are accessible on removal of the frame 25. The bank of keys 34 is mounted in a frame formed by the plates 35, 36 and side walls 73, 76 which are detachably mounted on the paper carriage. In a modification, the keys 34 act by means of pins 85, Fig. 8, on the bevelled ends of bars 88 formed with notches 90 which permit stops 92 to fall into the passage for the sheets, the notches being sufficiently deep to permit the stops to engage the lower plate of the passage or to enter apertures 201 therein. In further modifications, the stops are actuated by levers connected to the keys by Bowden wires or electrical connections.