Patent GB-264609-A (GB)
Title: Improvements in and relating to statistical, calculating and like machines
Filed: 1925-11-02
Abstract: 264,609. Brougham, L. E., and Accounting & Tabulating Corporation of Great Britain, Ltd. Nov. 2, 1925. Printing totals. - A statistical machine in which a total is taken automatically on a change of designation of the grouped cards is provided with reciprocating or oscillating members connected to certain of the type members or adding - wheel actuating members so that when a change of designation disturbs the setting of the reciprocating &c. members, total-taking is thereby initiated. The invention is illustrated as applied to the machine described in Specification 26896/13. Each type sector 1 used for designation purposes is connected by a link 2 to a reciprocating member 3 which is connected by a spring 9 to a second sliding member 6. These members 3 and 6 have slots 4, 5 and 11, 12 respectively and are guided on fixed rods 13, 14. Slots 4 and 11 are of the same length but slot 12 is shorter than slot 5 and a pin 7 on the slide 6 coacts with the right-hand end of the slot 5. Each slide 6 has ratchet teeth 18 equal in number to the number of perforation index-points in the card column and an equal number of rounded teeth 19. Coacting with the teeth 18 of all the denominations in each zone used for designation purposes is a single pawl 20 carried by two arms 21 pivoted at 22 and attached to depending arms 40 carrying a cross-bar 41; and coacting with all the corresponding teeth 19 is a bar 23 carried by two arms 24 pivoted at 25 and connected by a single bar 26 and a link 27 to a latch link 28 which is connected at 34 to a link 30 pivoted to a rocking member 31 having a roller 52 which coacts with a cam 53. The pin 34 moves in a slot 35 in a bracket 36 rigid with the fixed frame 33 and the member 31 is pivoted to a second bracket 32. The cross-bar 41 normally lies in the path of the end 42 of the sector 3I which is mounted on the shaft 3A as in the prior Specification. Thus the sector normally engages the bar 41 and rotates the pawl 20 away from the teeth 18. Slots 43 in the two arms 40 are engaged by pins 44 on arms 45 rigid with the totaltaking shaft 46 and springs 47 support the arms 40 and tend to depress pawl 20. At total-taking the shaft 46 and arms 45 move the bar 41 slightly to the right, Fig. 1, so that instead of engaging the end of the sector 31 the bar 41 takes in a slot 50 in the sector and the pawl 20 is not withdrawn. The rocking member 31 is pivoted at 55 to a lever 56 having a roller 59 which coacts with cam 60. This lever carries at its upper end a pin 58 and also a step 57 engaging a tooth 23 on latch link 28. A bracket 65 on the frame 33 carries a bellcrank 66 having a notch 68 to coact with the pin 58 and a tooth 67 which co-operates with a pin 71 on an arm 70 on the shaft 46. The pin 71 extends on both sides of its arm and also coacts with the step 57. Shaft 46 also carries an arm 73 which is connected through link 74, the bellcrank 75, spring. 78 and pin-and-slot 76, 77, to a link 80. This link 80 has a pin 90 which coacts with a lever 91 at total-taking to control the pinbox raising and card-feeding mechanism as in Specification 260,317. The machine operates as follows :-When a card is read each sector 1 used for designation purposes advances until arrested by the raised stop-finger appropriate to it. Thus the slide 3, through slot 5 and pin (7, advances the slide 6 to the correct setting where it is held by the pawl 20. Upon the next movement to the left of the sector 1 and its slide 3, the end of the slot 5 just reaches the pin 7 provided the same stop-finger has been raised i.e. the designation for that particular card column is unaltered. Thus when, later in the card cycle, the sector 31 depresses bar 41 to raise pawl 20, the slide 6 does not move. If, however, the designation alters the sector 1 moves more or less than in the previous card cycle, and hence either the slide 3 picks up the pin 7 and further advances, the slide 6 or the slide 3 does not reach the pin 7 and, when the pawl 20 is raised, the slide 6 moves backwards until pin 7 reaches the end of the slot 5. In either case the slide 6 is disturbed and hence the teeth 19 momentarily depress the bar 23. This operates the linkage 24, 27, 28 and tooth 29 rises and liberates the upper end of lever 56 which moves to the left. This initiates total-taking as follows :-the pin 58 moves to beneath the notch 68 and, when the cam surface 61 of cam 53 reaches the roller 52 the lever 56 is raised so that the step 57 latches up the pin 71 on the tooth 67. This rocks the shaft 46 and operates the linkage 73 74, 75 &c. for total-taking. When the cam surface 62 reaches the roller 52 the pin 58 is raised further and passes up into the notch 68. Shortly afterwards the cam surface 63 of cam 60 reaches the roller 59 and rocks the lever 56 clockwise latching its upper end behind the tooth 29 which is now in its lower position again. The pin 58 is no longer immediately beneath the notch 68 and when the cam surface next reaches the roller 52 to raise the lever 56 the pin 58 rotates the bellcrank 66 anticlockwise. This releases the pin 71 and the arm 70 is returned downwards by a spring and restores the shaft 46 to normal or non-totalizing position. During totalling the bar 41 enters the notch 50 and hence the pawl 20 is not withdrawn after a change of designation is detected. Therefore the slides 6 retain the new designation reading for comparison with the next card. A modification is described in which each slide 6 is replaced by all oscillating toothed disc.