Patent GB-104572-A (GB)
Title: Improvements in Card Perforating Mechanism.
Inventor: POWERS JAMES
Filed: 1916-04-06
Abstract: 104,572. Powers, J. April 6, 1916. Selective punching-machines.-Card-perforating machines of the kind described in Specification 23908/12 are provided with means whereby they may be set to punch more than one card with one setting of the punches. As shown in Figs. 1, 3, and 9, a wheel 18 loosely mounted on a shaft 19 is driven from, a motor 12 and is adapted to be clutched to the shaft by the depression of a pedal 26, when an arm 30 is moved from under the head 33 of a spring-pressed pin 32 in a wheel 31 fixed to the shaft; when the pedal is released, the arm 30 comes into the path of the head 33, which thereupon rides up the inclined surface of the arm and is thus retracted from engagement with the wheel 18. The shaft 19 is fitted with a cam 20 for actuating the pusher plate 21 of the card-containing hopper 38, a gear-wheel 22 for driving the feed-rolls 23, and a cam 24 for actuating the lever 25 which effects the raising and lowering of the part 41 of the perforating-device. The cards are fed between perforated plates 39, 40 and are perforated by such of the pins 42 as may be set by lugs 53 upon slides 50, which are adjusted by the positioning of the slide-bars 47 of an inclined keyboard 46. The bars are held in position by pawls 57 engaging with ratchet teeth 62. The pawls may be released by a lever 63; otherwise, after either one or two cards have been perforated, the release of the pawls is effected automatically by the actuation of a universal bar 66, lever 71, and roller 76 from a cam 74 on a shaft 73, which is driven from the shaft 19 by either of two sets of chain gearing in such manner that it turns, either at the same speed as the shaft 19, or at one.half of this speed. The shaft 73 also carries a cam 75, which is engaged by a roller 78 upon a sliding rod 79 connected to a deflector 45, so that when the shaft 73 turns at the same rate as the shaft 19, the deflector occupies the same position at the delivery of each card, but when the shaft 73 turns at half the rate of the shaft 19, the deflector occupies different positions for the two cards of a setting, and in this way one card is delivered into one receptacle 43 and the duplicate card into another receptacle on the other side. The bars 47 and slides 50 are connected bv levers 48 fitted with springs 77, and as soon as the bars are released, these springs restore the setting-parts to normal position. In a modified arrangement, the universal bar is connected to a depending bar, which may either 'be locked to a second depending bar actuated by a cam upon the shaft 19, or may be left free to slide relatively to the second bar. The locking is effected by a spring-pressed pin controlled by a hand-lever, and when the hand-lever is positioned for locking the two depending bars, the setting-mechanism is restored to normal position after the perforation of each single card, whereas when the lever is positioned for permitting relative motion between the bars, any laumber of cards may be perforated for a given setting. The hand-lever is connected to a spring-controlled arm on the shaft of the deflector 45 so that, when single cards are perforated, they are delivered into one receptacle, and when a number of cards are perforated for the same setting, these cards are delivered into the other receptacle.