Patent GB-322064-A (GB)
Title: Improvements in and relating to record-card-controlled machines, more particularly statistical machines
Filed: 1928-10-30
Abstract: 322,064. Stuivenberg, C. H. Oct. 30, 1928. Statistical machines ; total-talking.-In a recordcard-controlled statistical machine for grouped cards, the card group change is detected, and total-taking initiated, by two sets of independently adjustable sliding pieces which are positioned differentially in accordance with the successive card readings. Instead of totalling, a feeding or cutting off of the record paper may be effected. A separate pin 1 for each card column (the cards being of the Hollerith type) is moved differentially to the right according to the card-reading for that column. For instance, in a Powers machine the card-sensing feelers rotate sectors, which rotation may be used to transmit the differential movements to the pins 1. These pins 1 are carried by a sliding member 2 which is reciprocated vertically by a member 6 pivoted at 7. In moving to the right, Fig. 1. each pin 1 moves a sliding piece 3 differentially along an upper rod 5. With the member 2 in its lower position, Fig. 3, the pins 1 similarly move sliding pieces 4 along lower bars 5. Helical springs on these pieces 3 and 4 frictionally engage bars 5 to prevent accidental movement. Each piece 3 has a bow 28 pivoted at 10, projections 9 being held up by projections 8 when pieces 3 and 4 are similarly adjusted. Otherwise, the bows 28 drop as shown dotted in Fig. 1. Resting on each bow 28 is a rod 11, all the rods 11 being reciprocated by a shaft 12 immediately after the movement of the pins 1. If a bow 28 is held up by the piece 4 underneath (i.e. if pieces 3 and 4 have been set similarly by consecutive cards of the same group) the rod 11 moves idly. If, however, bow 28 has dropped (card group change) rod 11 rocks a bellcrank 13, 15 pivoted at 14 and initiates totaltaking. Parts 3, 4, 5, 11 are repeated for each card column, but plate 13 is common to all, When rocked, the arm 15 through a link 6 draws down a plate 17 about axis 18 to depress a T lever 19, pivoted at 20 to a slide 21. This rotates counter-clockwise a lever 23 pivoted at 24 to a slide 29 which is moved to the left and back after rods 11 have been reciprocated. Lever 23 carries two arms 25 which coact with lugs 22, 26 on slides 21 and 27 adapted to rock member 6 and thus reciprocate member 2. For all columns not used for group control the rods 11 may be separately locked up. With member 2 in upper position, Figs. 1 and 2, the first card is read and pins 1 position pieces 3; bows 28 drop, rods 11 strike plate 13 and lever 19 depresses arms 23, 25. Slide 29 is then reciprocated and lower arm 25 moves lug 26 and slide 27 to the left, Fig. 3, so that slide 2 is lowered for the next cardreading to cause pins 1 to position pieces 4. At the same time slide 21 moves to the right and lever 19 is moved to the right so that next time it is lowered it will act on Lever 23 on the other side of its pivot 24. If the second card is of the same group as the first, the pieces 4 are positioned under pieces 3 and raise bows 28 so that rods 11 move idly. Hence as long as cards of the same group pass the slide 29 is reciprocated and the lower arm 25 just reaches the lug 26. Each reciprocation of lower arm 25 restores pieces 4 to the left so that they are reset by each card read. When the first card of the next group appears however, the differential setting of pieces 4 alters and one or more bows 28 drop so that one or more rods 11 strike the plate 13 to depress lever 19 and rock lever 23 clockwise. The upper arm 25 strikes lug 22 and member 2 is raised to it supper position. The pieces 4 retain the new card reading and the pieces 3 are thereafter, until the group again changes, reset each cycle by pins and upper arm 25. The movement, at a card group change, of any of the parts which are moved by plate 13, when the latter is rocked, may be used to initiate the total taking operation.