Patent GB-361863-A (GB)
Title: Improvements in or relating to paper feeding means for calculating machines, bookkeeping machines and similar machines
IPC: B41J11/48
Filed: 1930-08-25
Abstract: 361,863. Typewriters &c. ELLIS ADDING-TYPEWRITER CO., 388, Elizabeth Avenue, Newark, New Jersey, U.S.A.- (Assignees of Ens, E. J. ; 240, Sunset Avenue, Newark, New Jersey, U.S.A.) Aug. 25, 1930, No. 25306. Convention date, Aug. 27, 1929. [Class 100 (iv).] Sheet feeding and guiding arrangements ; papersupports.-To facilitate insertion of sheets at the front of the platen, means is provided for releasing and holding back the feed-rollers when the platen is moved to an abnormal position. These means may be associated with a front guide for the sheets, and flexible bands for holding a record sheet on the platen. In the arrangement shown in Fig. 2, the platen shaft 3 and pins 12 on the platen frame 4 engage forks 10, 11 in bell cranks 9 mounted on the carriage 1. Spring-urged rocking arms 19 on the carriage are connected by rods 18, 21 carrying feed-rollers 17 and side guides 22. When the platen frame is raised, the arms are cammed forwards and notches 26 therein engage the platen shaft and hold the feed-rollers in released position to permit of front insertion of a sheet. An apron 7 on the carriage is provided with an adjustable stop for the sheet. The platen frame is raised and lowered by means of a bar connecting posts 6a on a shelf 6 secured to the platen frame. A pile of sheets is supported by a ledge 6c on the shelf. To permit of detachment of the platen frame, the platen shaft is provided with spring-pressed collars which normally rest under abutments 16 on the forks 10. In the arrangement shown in Fig. 6, the platen frame 4 is raised by feed-rollers 36 and released by moving'rearwards a hand-lever 43, and a rocking latch 46 co-operates with the pin 12 to hold the platen frame in raised position. The hand-lever rocks on a rod 33 on the platen frame and has a fork engaging a pin 41 on an arm 40 secured to a rock-shaft 39 having a groove engaging ribs on spring-urged rock-arms 37 carrying the feed-rollers. The arms 37 and an apron 27 are carried bv the platen frame. The latch is drawn forwards by a spring 52 and is connected to a link 53 which is guided by a pin 54 on the carriage. When the hand-lever is moved rearwards the feed-rollers are released, the platen frame is raised, and a notch 51 in the latch engages the pin 12 to hold the platen frame. After insertion of a sheet, the hand-lever is returned and a pin 45 thereon co-operates with the link to release the latch. A front guide 56 for the sheet is pivoted to brackets 57 on the carriage 1 and has pins 61 which co-operate with the platen frame to increase the opening between the platen and guide when the platen frame is raised. The sheet is straightened by setting one of the lines in register with the bottom walls of slots in the guide. Adjustable side-guides 64 are secured by screws to the guide. Flexible bands 29 for holding a record sheet on the platen are connected at the rear to a shelf 6, and at the front to a rod 30 mounted on spring-urged arms 32, the connections permitting lateral adjustment of the bands.