Patent GB-720067-A (GB)
Title: Improvements in or relating to machines for transferring records from one card to another
IPC: G06K7/00
Filed: 1952-08-14
Abstract: 720,067. Selective punching-machines. MAUL, M. Aug. 14, 1952 [Aug. 14, 1951], No. 20491/52. Class 31 (2). A machine for automatically transferring data recorded on a set of pattern cards in the form of a plurality of decks each consisting of a series of adjacent perforated columns onto a set of similar multi-deck receiving cards comprises a device for analysing the pattern cards and correspondingly controlling the action of a punching device operative upon the receiving cards, and means which feed the receiving cards to the punching device and the pattern cards to the analysing device in timed relation and permit the provision of a lead or lag in the relative feeds of the two sets of cards to the extent of one deck or a multiple thereof. The machine is described for dealing with cards having two perforated decks each consisting of thirty columns with six hole positions in each and permits transfer to be effected either between the same decks of the two cards or from either the upper or lower deck of the pattern card to the other deck of the receiving card; it is stated to be useful when, after transferring data between the same decks of the two cards, the old balance represented in the lower deck of a card is, during another passage through the machine, to be transferred to the upper deck of a new card. The machine is generally similar to that described in Specification 712,377 in which the pattern and receiving cards are fed into opposite sides of the machine, each line of hole positions in the pattern cards being analysed in turn by a row of brushes extending across the machine and controlling a corresponding row of punches operative upon the receiving cards. According to this invention, the crank mechanism disposed between the motor-driven and intermittently-rotated shaft and the link 66 for reciprocating the workfeeding slide of the pattern cards (see Fig. 6 of the prior Specification) is replaced by an eccentric 85, Figs. 9 and 10, freely rotatable on a shaft 79 and connected with the link 66 by a link 87; the shaft 79, which is driven intermittently from the motor-driven shaft, rotates the eccentric through planetary gearing 81 ... 84, the gears 82, 83 being carried on a stud 75 on a double arm 88 rotatably-adjustable about the shaft 79. A knob 91 projects from the arm 88 through an arcuate slot in the front wall of the machine to permit rotary adjustment of the arm 88 to the extent necessary to vary the lead or lag of the pattern card to the desired extent relatively to the receiving card which is fed into the machine as described in the abovementioned Specification. The arcuate slot 90 has three enlargements 96 in which the knob 91 may be locked, the central enlargement providing for no lead or lag, and the other two a lead and lag, respectively, of one deck. Alternatively, the feed of the receiving cards is varied in this way. Actuation of the knob when the machine is in operation is prevented by arranging for the knob to be accessible only through a door which, when opened, breaks the circuit of the driving motor. The machine is also constructed as described in the prior Specification to permit transfer from any column of the pattern card to the same or another column of the receiving card by means of a plug-board switching device between the brushes and selector magnets of the punches ; this device may be set so that in one card passage reproduction is effected between the same decks of the pattern and receiving cards and in a further card passage from one deck of the pattern card to another deck of the receiving card.