Patent GB-292486-A (GB)
IPC: G06K5/00
Filed: 1928-06-18
Abstract: 292,486. Lorant, R., (Assignee of Buchter, J., and Lebeis, M.). June 16, 1927, [Convention date]. Statistical apparatus; verifying perforations.- In a machine for verifying the correctness of perforations in statistical cards, each card is read by a pin box of usual type and pins raised through the correct perforations coact with mechanism set from a keyboard and allow a carriage bearing the said mechanism to move one step to coact with the next part of the card. If the perforations in the card do not correspond with the data set up on the keyboard the above action does not occur but the carriage is locked against movement to indicate the non-agreement. Each time a coupling key 43 on the keyboard 124, Fig. 2, is depressed a main spindle 21, Fig. 1, is rotated one revolution from the main motor through a one-revolution clutch. This shaft 21 actuates the lever 28 of the picker blade 30 in the card feed magazine 31 and also the card feed rollers and the reciprocating pin box 44 carrying the spring-pressed pins 48, the card being fed between perforated plates 33, 34 until held by a stop 37. Pins 53 in an upper and stationary pin box 51 coact with the perforations in the plates 33, 34 and in the card and with the lower pins 48. Carried on rails 54, 55 by rollers 56 is a carriage frame 57 which is moved in one direction by a spring barrel. A toothed rack 59, Figs. 1 and 9, rigid with the fixed rail 55 is geared to a pinion 61 secured to a ratchet 62 which coacts with two pawls 63 and 66 acting as an escapement to limit the carriage movement to one step each time. The pawls 63 and 66 both pivot at 65 and the latter pawl has a lip 67 engaging a pin on the first pawl. Rigid with the pawl 66 is a lever 68 having a slot 69, eccentric of the pivot 65, and coacting with a pin 70 on an arm 71 which has a lateral extension positioned in front of levers 72 pivoted at 73, Fig. 4, to the carriage frame. There are twelve levers 72, one for each hole in a row of holes of the card. These levers are pressed by springs 74 against a plate 75 on the carriage to which are secured bowden cables 129 from the numeral keys 109, the inside rods 126 moving the levers 72 away from the plate 75 when the keys are depressed. When a lever 72 is moved it swings the member 71 and pin 70 thereon so that lever 68 is lowered together with pawl 66. On the shaft 130 is loosely mounted a bell crank 131 which has a handle for moving the carriage back against its spring drive. To one arm 131 is hinged a rod 132 connected to an arm 133 having a yoke-shaped bracket 134 above feeler blades 99. The bracket is pivoted at 135 to the carriage. Attached to the levers 72 are bars 76 having pin and slot connections 77, 78, Fig. 8, with slides 93, which are slidably mounted on the carriage and have also pivoted to them at 98 the feeler blades 99. As shown in Fig. 4 the ends 79 of the bars 76 strike a bar 80 on a member 81 pivoted at 82 to the carriage and having also a pin 85. When a bar 76 meets the bar 80 the pin 85 moves an arm 86 to release a pin 89 so that the toothed member 90 carrying this pin is raised by spring 92 to hold a rack 60 rigid with the carriage and prevent movement of the latter. The spring-aided counter-clockwise movement of feeler blades 99 on the slides 93 is limited by pins 102 on the slides. Lateral lugs 104 on the blades 99 coact with the bars 76 and lugs 103 with the raised pins 53 of the upper stationary pin box 51. The slides 93 also coact with a common rod 107 on the member 81 to lower the bar 80 and engage the locking device 60, 90. To operate the machine the coupling key 43 is depressed to cause one rotation of shaft 21. The first card is thereby fed into the plates 33, 34 and the lower pin box is raised so that pins 48 passing through card holes, raise corresponding pins 53 into the path of the lugs 103. The carriage feed key 110 is depressed so that the carriage moves one step and the lugs 103 pass over the first row of pins. Where a pin 53 is raised the corresponding blade 99 and slide 93 will be held. A value key 109 is depressed and if this corresponds to a card perforation the lower end 105 of the bar 76 moves the corresponding lug 104 down to disengage the held lug 103 returning the slide 93 to normal position and the mechanism proceeds to the next stage. If there is not a card hole corresponding to the key depressed the mechanism assumes the position of Fig. 8 the end 79 striking the bar 80 to rock lever 81 and pin 85 so that the member 90 is released to lock the carriage against movement. Sorting cards.-The cards are discharged into a magazine 112 past blades 114 which are secured to a spindle 113 and drawn together and downwards by a spring 137. An arm 115 on spindle 113 engages the end 116 of a rod 117, Figs. 1 and 10 suspended by arms 118 on the fixed rail 54. A spring 119 holds the rod 117 against a roller on an arm 120 rigid with the locking member 90. When the perforations in the cards agree with the keys depressed the cards are fed into the magazine 112. When, however, there is disagreement the member 90 is raised to lock the carriage. Arm 120 also rises, allowing rod 117 to rise so that the shaft 113 is rocked clockwise by spring 137, whereby the blades 114 are lowered and the card causing disagreement is fed on to the tray 122.