Patent GB-393733-A (GB)
Title: Improvements in combined typewriting, bookkeeping and cardperforating machines
Filed: 1932-04-22
Abstract: 393,733. Punching &c. statistical cards. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Underwood Elliott Fisher Co. ; 342, Madison Avenue, New York, U.S.A.) April 22, 1932, No. 11567. [Class 31 (ii).] In a machine for typewriting, computing, and punching data on statistical cards, each numeral key of an Underwood typewriter, on depression, sets a digit pin 47. The digit pins control racks 45 of a computing machine connected to selecting gags of a punching machine. After an amount is typed a cycling mechanism operates to punch the card and simultaneously to run it into the counter of an Underwood book-keeping machine. The type-carriage slightly advances the rack bars to prepare them for pin setting. The card is fed zone by zone by a spring drawn escapement controlled by the typewriter tabulating keys. An arm 209 on the shaft 171 is rotated at each cycle to operate a plate 207 to move a dog 214 into the path of a pin 205. After card punching, the arm 209 releases an arm 210 to allow a spring to restore the dogs and to allow a zone shift of the carriage. To deliver a card to card ejecting rolls, the plate 207 is drawn forward to free the dogs from the pins. Arm 135 actuates a switch 134 of the typewriter carriage return. Movement of the rod 135, Fig. 1, actuates a bell-crank 238 to release a latch and a spring moves a bar forward to rock a shaft 212 to withdraw the dogs. The carriage is advanced by its spring until the edge of the card engages the feed rolls. The motor starting switch for the card perforating mechanism is auxiliary to the motor starting switch 134 of the carriage-return mechanism and keeps the motor 96 running in case a typewriter carriage return is completed and switch 134 opened before card-carriage return and card feeding operations are completed. Card - ejecting rolls. The lower rolls are driven and the upper rolls are spring pressed. The card drops into a bin with removable liner. Carriage return. The carriage 199 is returned by power from shaft 260. A rack 315 on the carriage 199 engages a pinion 316 clutched to a driving pinion 319. A tappet on the card carriage' engages the pinions 316, 319 to return the carriage as the card is presented to the ejector rolls. A cam on the card carriage 199 acuates a rockshaft 323 to withdraw the pinion 319 and stop the return movement. During the return movement of card carriage the picker is clutched in by trip mechanism. Depression of a carriage return key 127 raises a latch bar 123 to allow a spring 126 to actuate linkage 122 to clutch a pinion 109, engaging a rack 110 on the carriage, with a shaft 112 driven by belts 115, 119 from the electromotor. A dog 129 throws the'clutch out at the end of the travel. A switch 134 allows the motor to operate the carriage return independently of the computing cycle. The typewriter carriage is movable independently of the card carriage. Punching. A gang of punches 145, one for each hole space, are arranged in columns to co-operate with selecting slides 147 carrying plungers 148, and connected to the racks 46 of the tabulator. To allow for the greater travel of the slides 147, pivots 154, 137 are at different radii on a lever 151. When the racks 46 are fully moved and the crank 94 is at the dead centre it actuates a bowl 170 connected by linkage 183 to a punch depressing plate 168 covering the punches and suspended for vertical movement on linkage 172. Feed. The cards are fed from a stack 186 by a picker 194, oscillated by the main shaft, to feed rolls 190 and thence to a card carriage 199 slotted at one edge for reception of the card. The free edge of the card is supported. The carriage is restrained at the end of travel by bumpers and is driven by a spring drum under control of an escapement comprising dogs on a plate 207 oscillated from the card punching shaft 171 which engage pins 205 in the carriage. A pin 205 is set for each zone. After punching the card is ejected by rollers. Typewriter.-Depression of numeral keys 30 cause type 32 to print on a sheet against a platen 33. Governor for card carriage. The speed of the card carriage is controlled by a governor driven by the rack 315. Tabulator. Dial wheels 44 are actuated by racks 46 carrying set pins 47 projected into the path of an operator bar 48. Pin setting bars 55 carried by parallel linkage are actuated by a shaft 57 and rod 59 from numeral keys 30. Racks 46 are moved successively to bring the pins 47 in line with setting bars 55 by selector dogs 68 manually arranged on bars 69, 70 on the typewriter carriage. The dogs act on tappets 71 actuating through rods 62 projections 462 on the racks 46. Each dog is raised to operative position during the carriage travel by a roll 76 on a rock shaft 78 which is lowered by a shaft 74 when the platen is moved to uppercase position. Depression of tabulating key 73 through tabulator stops 81 co-operating with counter-stops 102 set on a notched bar 64a of the typewriter carriage. Depression of a key 98 through a lever 99 frees a clutch pin 97 to allow an electro motor 96 to oscillate one cycle on rack 90. The clutch may be operated automatically as the typewriter carriage leaves a computing zone.