Patent GB-215497-A (GB)
Title: Improvements in statistical record-card controlled machines
Filed: 1923-03-08
Abstract: 215,497. Vox Maschinen-Akt.-Ges., and Vogelsang, W. March 8, 1923. Statistical machines; with printing mechanism; controlling indication and printing of zeros.- Adding mechanism for a statistical machine comprises actuating sectors 3 loosely mounted on a shaft 2 rotated synchronously with the card-feed and held against springs 4 by an universal bar 5 rotatable by arms 6 about the shaft 2, one of these arms 6 carrying a roller controlled by a cam on the shaft 38. Each sector 3 gears with a wheel 9 having eleven teeth and rigid with a ratchet 10 of eleven teeth and a type-wheel 11 having ten types 0-9 and a blank space. Each ratchet 10 is arrested at the correct moment by a spring-actuated detent 33 which is released when contact is made through a card perforation to energize a magnet and pull the rod 78 to the left so that the latch 34 is withdrawn and the wheel 11 is arrested with that number opposite the ink ribbon F corresponding with the card perforation. To prevent the printing of unnecessary ciphers special perforations in front of the " 0 " perforation are made in the card to the left of the first significant figure so that the appropriate levers 33 are released directly the card comes under the brushes and arrest their wheels 11 so that the blank spaces on them are opposite the ribbon F as shown in Fig. 1. Near the end of the operation all released detents 33 are restored by a universal bail 36 controlled from the camshaft 38. Each numeral wheel 17 of the totalizer is rigid with a wheel 16 of ten teeth and is loose on a shaft 13 carried by arms 14 rigid with a shaft 15. The wheels 16 normally mesh with transfer sectors 18<a> but after item-printing and immediately prior to the restoration of the sectors 3 by the universal bar 5 these wheels 16 are depressed into engagement with the sectors 3 by means on the camshaft 38 controlling the shaft 15 so that as the sectors 3 are restored the new item is added to the counter which shows the new total at the window 43. The items set up on the type-wheels 11 'are printed on a paper P fed between friction rollers 90, 91 carried, together with the platen 57, in a frame 53 which is rocked about a pivot 54 to effect printing by a cam on the shaft 38. Cam means on this shaft 38 also control a ratchet feed for the paper P. Transfer mechanism.-The transfer sectors 18<a> integral with arms 18<b>, 18<c> are loose on the shaft 21 and are held against the action of their springs 22 by a universal bar 19. When a numeral wheel passes from 9 to 0 while its gear-wheel 16 is in mesh with the sector 3 a transfer stud 26 on it rocks the lever 24, 29 of the next denomination against its spring 25, this lever being then held by a spring latch 30. Later when the wheels 16 have been re-engaged with the sectors 18<a> the bar 19 is depressed by means controlled from the camshaft 38 so that all sectors 18<a> the corresponding arms 24, 29 of which have been tripped and latched up, are rooked, clockwise by their springs 22 to complete transfer. Afterwards these sectors are restored by the bar 19 and the latches 30 are disengaged by another universal bar 31.