Patent GB-421776-A (GB)
Title: Improved machine for the selection and regrouping of perforated cards
Filed: 1934-05-10
Abstract: 421,776. Statistical apparatus. LEGRAND, G. 0. J. F., 65, Avenue Jean- JaurÞs, Lyons, France. May 10, 1934, No. 14167. [Class 106 (i)] Sorting cards.-In apparatus for sorting cards and subsequently restoring them to their original sequence, cards are read and selected from a main stock of cards 1 so that the selected cards are sorted into a " selected " box 3 and all others into a "rejected" box 4 and a dummy card is fed from an auxiliary stock 2 into the " rejected " box 4 each time a selected card is sorted into the " selected " box 3 ; after the cards in box 3 have been used for any desired purpose they are placed in magazine 2, the cards (rejected and dummy) from box 4 are placed in magazine 1 and the selector 5 is set to sort the dummy cards into box 3. Each time this happens a "selected" card from magazine 2 is sorted into box 4 among the original main stock of cards and into its correct sequential position. In the selector 5 the cardreading pins 6 coact with bolts 13 and the mechanism is preset so that only certain pins 6 should read holes. If pins 6 thus read a correspondingly punched card, all bolts 13 are free to move to the right. Two of the bars 13 rotatably support a roller 18 which coacts with a cam face 19. At their left ends, bolts 13 are connected to a transverse rod 14 actuating an arm 15 which is rigid on axis 16 together with an arm 17 carrying a lateral pin 21. A gear wheel 31 on the main shaft 11 carries a pin 35 which is slidable axially in holes in the wheel and in a bracket 38 attached to the wheel. A flange 37 on the pin is pressed by a spring 36 towards the side of the wheel. An arm 39, pivoted at 41 to wheel 31 and pulled counterclockwise by spring 42, normally presses against pin 35 between the wheel 31 and flange 37, thus holding the latter away from wheel 31. Arm 39 coacts with the end of bell-crank 26, 25. Fingers 43, 45 are riveted to wheels 31, 32 as shown. Wheel 32 has a toothless part 34 which is normally opposite wheel 33 at the engaging pont. If the perforations of the card read by pins 6 do not agree with the presetting of selector 5, at least one bolt 13 is locked against movement to the right, arm 17 is not moved and the card is fed by rollers 61 over lid 48 to " reject " box 4. If the card does agree with the presetting, all bolts 13 with roller 18 move to the right as selector 5 is lowered by link 7 and eccentric 8 ; arms 15 and 17 swing counterclockwise and lateral pin 21 engages in a groove at the top end of a vertically sliding bar 22. On further movement of frame 5 downwards, pin 21 depresses bar 22 and a shoulder 24 on the latter allows bell-crank 25, 26 to rock counterclockwise. The end of arm 26 comes into the path of the end of arm 39, Fig. 6, and as the latter rotates counterclockwise, arm 39 is rocked clockwise about pivot 41 so as to be removed from collar 37 of pin 35. The latter thereupon is moved axially by its spring 36 so as to project at 35<1> beyond the wheel 31. This end 35<1> then rotates finger 45 and wheel 32 so that the latter is enmeshed for one revolution with wheel 31. Cam 46, rigid with wheel 32, thereupon actuates a lever 47 to raise the lid 48 and sort the card into the " selected " box 3. At the same time, an eccentric 49 actuates linkage 51, 52 to cause feeder 54 to feed a dummy card from auxiliary magazine into rollers 62 and the " reject " box 4. Arm 45, Fig. 7, rocks bell crank 26, 25 clockwise so that spring 23 raises bar 22 again and the end of arm 26 is held out of the path of arm 39. A fixed cam face 44 engages the end 35<1> of pin 35 and restores the latter axially so that spring 42 may raise arm 39 into position between the flange 37 and the side face of wheel 31. Thus for each card sorted into box 3 from the magazine 1, a dummy card is sorted in its place into box 4 among the rejected cards. In the resorting operation the selector 5 is set to correspond to a special hole, notch or other mark in the dummy cards.