Patent GB-369691-A (GB)
Title: Improvements in or relating to record card controlled tabulating machines
Filed: 1931-01-14
Abstract: 369,691. Statistical machines. BROUGHAM, L. E., Brillig, Riddlesdown Avenue, Purley, and ENGLISH, F. G. S., 42, Lavender Road, Thornton Heath, both in Surrey. Jan. 14, 1931, No. 1293. [Class 106 (i).] A stop-basket for tabulating machines wherein toothed adding and printing sectors are differentially arrested by the stops raised by the card-reading pins (or by manuallyoperable keys) is characterized in that the stops are mounted in a casing J adapted to slide in the stop-basket frame C under the control of a spring K and an abutment M which is raised by a special hole in the card. The basket has rows of decimal stops and one row of seven pence stops A corresponding to the numerals 0, 1, 3, 5, 7, 9, 11. The eleven stop is a fixed member D next to the nine stop, while the nought stop E is vertically movable as set out below. The remaining pence stops A (" 1 " to " 9 ") are housed in a sliding casing J. Each stop A rests on a member F which has a larger contact surface than the stop and which ends in a lug F<1> coacting with a retractor bar G. When a card hole (e.g. in the " 3 " position) is read the corresponding members F, A are raised and the heel H of the sector moves to the left until it meets the " 3 " stop A. The heel H then carries the raised stop A and the casing J a step to the left against the action of spring K so that " 4 " is printed instead of " 3." If, however, there is an additional hole in the card at the " 11 position, member N and abutment M are thereby raised to obstruct lug L on casing J so that the movement of this casing is prevented. Hence the " 3 " stop A effects the printing of " 3." The five stops A will thus effect printing of 1, 3, 5, 7, 9 or 2, 4, 6, 8, 10 according to whether the additional " 11 " hole is present or not. To remove the nought stop E from the path of heel H when any other stop is raised by the card reading, there is a slide S (for each column of stops) which has cam slots S<1> engaged by a pin F<2> on any raised stop A. Normally whenever the retractor bars G rise to release members F one bar meets a vertical member R pivoted on the nought stop E so that this stop is raised to hold heel H. If any raised stop has moved slide S sideways, however, the slide moves member R sideways so that the nought stop remains down. As the retractors G return downwards a member R<4>, R<1> is rocked counterclockwise about pivot R<3> to restore member R. In a modification, the abutment M is normally in the path of casing J so that a single perforation causes the printing of the odd numbers and the additional perforation (" 11 ") removes the abutment M and causes the printing of the even numbers. In these ways, only half of each normal card column is used, and the other halves may similarly be employed by turning the card round. The stops A may have more than two positions as above, by employing a number of abutments M in each column, or a stepped abutment, controlled by special holes in the card. In this way each stop A is used for printing a plurality of numbers. Specification 26896/13, [Class 106 (i), Calculating &c.], is referred to.