Patent GB-384021-A (GB)
Title: Book-keeping machine with power drive
IPC: B41J3/28
Filed: 1931-10-05
Abstract: 384,021. Book-keeping machines. SCHNEIDER, E., 5, Via Carlo Goldoni, Mailand, Italy. Oct. 5, 1931, No. 27633. [Class 100 (iv).] Index type-wheel machines; paper supports; sheet-feeding arrangements; line-spacing mechanism.-In a power-driven book-keeping machine adapted for line printing, and comprising a vertically movable printing-head provided with adjustable type-carriers, a device for gripping and advancing line by line sheets to be printed, and means such as a foot-actuated coupling for connecting and disconnecting the drives of the head and sheet-advancing device, an impression bed or plate having recesses therein is provided and is adjustable by means of a hand-lever relatively to the printing position so that individual columns are not printed. The table 1, Fig. 1, is provided with guides 2, 3 for the printing-head 4 which is raised and lowered by means of a motor-driven crank shaft 5 and connecting-rods 6. Typewheels 8, mounted on a shaft 7 in the head 4, are provided with letters and numbers, the number type-wheels being loosely mounted on the shaft 7 and meshing with wheels provided with numbers which can be seen through openings 11, and the letter type-wheels being secured to the shaft 7 and moved simultaneously through gears provided with letters by a handle a. The letter type-wheels are permanently set to print stock words as seen through a window 10. The impression plate 13, for excluding columns of print, is provided with two recesses 16, 17, Fig. 6, and is movable by means of a lever 18, beneath the sheets to be printed, in guides 14 in an opening in the table 1 to bring the recesses into printing position. A pair of feed rollers for advancing the documents is arranged at each side of the plate 13, the drive being taken to the first pair 21, 22 from a control lever 29, Fig. 7, oscillated by the connecting-rods 6, which oscillated a segment 26 geared to a loosely mounted gear 25 provided with a pawl mechanism for rotating in one direction only the roller 21. The roller 21 is geared to the roller 22, and also to the other pair of feed rollers 23, 24 by gears 33. The magnitude of the advance movement of the documents can be adjusted by a lever 35 which moves a slide 32 on which is mounted the lever 29 to vary the amount of oscillation of the segment 26. To allow of the insertion of documents between the rollers 21, 22 the roller 22, which may be a short roller engaging only the margin of the documents, is mounted in a spring-retained pivoted lever 36 which is engaged and raised by another pivoted lever 39. The top roller 23 may also be raised by levers 41, 43, and, when the journal sheet is to be passed between the rollers 21, 22 only, a guide 46 is provided on the lever 41 to prevent the account sheet entering the rollers 23, 24. The journal sheet and the carbon paper may be in the form of webs passing from a pair of rollers over the plate 13 and rewound on another pair of rollers. The printing-head 4 prints through an inking-band 57 which is wound on rollers 55, 56 mounted on the head and traversed backward and forward from one roller to the other at each descent of the head 4, by known mechanism such as a sliding bar provided with pawls which engage ratchet wheels on the rollers. Screw adjustment means is provided to regulate the amount of the movement of the inking-band. Levers may be provided on the type-wheels to facilitate setting-up the print. The stock words to be printed may be attached to a drum, or engraved on a block which is attached to a drum. An adjustable stop may be provided on the table to facilitate positioning of the account sheets. Addition and subtraction mechanism 90 is connected to the number-type wheels, and is driven from the crank shaft 5 through a rod 91.