Patent GB-438107-A (GB)
Title: Improvements in or relating to statistical machines
Filed: 1934-02-07
Abstract: 438,107. Statistical machines. ACCOUNTING & TABULATING MACHINE CORPORATION, 465, Washington Street, Buffalo, New York, U.S.A. Feb. 7, 1934, No. 4089. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 13, 1934]. [Class 106 (i)] Relates to a perforated record-cardcontrolled machine, generally of the Powers type driven by an electric motor. The sensing pins raise extension rods which in turn raise the stops 26 in the stop basket which is substantially of the form shown in U.S.A. Specification 1,780,621. When a stop 26 is raised to arrest the adding and printing sector 28, Fig. 2, differentially, the latter is arrested to add and print one of the odd numbers 1, 3, 5 or 7. If stop 29, of different shape, is also elevated the driving spring of sector 28 is able to move the raised stop 26 forward an extra space to print an even number next above the odd number which stop 26 represents. The zero stop 30 is pivoted to a bell-crank 31 which normally urges it upwards but with the machine at rest all stops 30 are retracted. During actuation if a stop 26 be raised, a slide 32 is moved to the right, maintaining bell-crank 31 in a counter clockwise direction and holding the stop 30 down. A nought block 165 common to the zero stops in a number of denominations may be used to elevate the zero stops and disable certain denominations. Each sector 28 actuates a forward counter wheel 34 and also actuates another counter wheel. The zero stops are automatically lowered when the machine reaches " normal position." Counters. One or both totalizers of a " computing unit may be timed so as to effect either " adding, totalling, non-adding, or read totalling." The forward counter wheels 34, Fig. 5, are loosely mounted on a shaft carried by a cradle which is rocked by a pair of arm 35, to one of which is connected a link 36 with upper and lower notches. For adding, the upper notch engages the upper pin 37 on a member which is rocked by the cam 20, Fig. 2. This disengages wheels 34 from actuators 28 near the beginning of the card-reading cycle and re-engages them near the midpoint of the cycle to add the amount according to which the actuators have been set during the first half of the cycle. For total-taking the lower notch coacts with the lower pin 37 in the opposite manner to that described for adding. For non- adding, the wheels 34 being disengaged and the link being in an intermediate position in which neither notch coacts with a pin 37, the wheels remain disengaged. If the wheels are initially engaged, they remain engaged and a sub-total is taken, the total being printed and then restored to the wheels 34. The machine is arranged to act with grouped cards and to take totals and sub-totals on change of two different designations. At main total-taking, however, a sub-total is also taken first. Group-change detection, Fig. 9. Two slides 65, 66 (of which 66 is behind 65 in Fig. 9) are provided for each denomination parallel to the extension rods 54 which are raised by sensing pins 59 which rise through card holes. Slide 65 has six cams 67 in the six right-hand slots, Fig. 9, which coact with lateral pins 68 on the rods 54, and are controlled from the upper card field. Slide 66 has six similar cams 67 in the left-hand slots and is controlled from the lower card field. When a group designation is read the corresponding rods 54 are raised and latched up by latch bar 63. When a different designation is read, different rods 54 are raised and in rising their pins 68 move cams 67 and slide 65 (or 66) to the left to actuate the main totaltaking bail 91 and/or the subtotal-taking bail 74. Two control keys 72 with rods 73 are provided for each designation card column and each key is slidable vertically on combs 70 and may be adjusted to any of three positions. In the upper position, a slide 65 (or 66) moves freely beneath the lower end of the corresponding key rod 73 (no total-taking). If rod 73 be moved down one step the movement of slide 65 (or 66) to the left acts upon subtotal-taking bail 74 through the interposed lower end of key rod 73. If rod 73 be moved two steps to its lowest position, then slide 65 (or 66) acts upon bail 74 and also upon main total-taking bail 91. When the bail 74 is rocked a clutch is thrown in to connect the driving mechanism to the subtotal-taking mechanism. There is a similar clutch for the main total-taking mechanism and the two are interconnected by a bar so that they may not act together. Cushioning the adding sector recoil. When a counter wheel is disengaged during a totaltaking cycle at the end of the first half cycle of movement, the corresponding sector 28, Fig. 2, tends to move violently, under its driving spring, to the end of its path. To prevent this, cushioning bails 128, Fig. 4, are provided which consist of a spring-pressed intermediate stop for each sector. U.S.A. Specifications 1,245,502, 1,245,506, and 1,253,696 also are referred to.