Patent GB-223939-A (GB)
Abstract: 223,939. Shipley, B. M. Jan. 2, 1923, [Convention date]. Type-wheel machines; column printing- arrangements; hammer-impression arrangements. -In a keyboard-controlled printing-machine typewheels set differentially under the control of the keyboard and adapted to print items, with columnar selection, upon a record-strip and an inserted card and book, are arranged in two lines, each line containing a number of similar groups of wheels. These groups are identically set at any one operation, but only a selected group (or groups) is permitted to give the impression according to the particular column in which the imprint is to be made. For this purpose the groups have their own platens and these are selectively rendered effective under the control of the differential mechanism. The invention is described in connection with a machine for registering withdrawals and deposits in a banking system, and reference is made to Specifications 203,762, [Class 106 (i), Calculating &c.]; 209,408; and 224,244, [Class 106 (i), Calculating &c.]. The amounts and account numbers set up are recorded on a record-strip by an upper set of type-wheels mounted on a shaft 424, Fig. 3, and also together with the date, set by external knobs, on the file card and the customer's pass-book by a lower set of type-wheels on a shaft 425. The amount wheels on each shaft are quadruplicated and the corresponding impression platens are selectively controlled so that the amount may be impressed in any one of four columns on the record surfaces. Fig. 9 illustrates in plan the lower type line and the two tube lines conveying the settings to the amount type wheels 450 and the account number type wheels 457 in both the upper and lower type lines. The amount racks, set by the differential mechanism, gear with pinions 423 on tube line 420, which pinions through sleeves and pinions 429 rotate the type wheels of the third amount group on both the upper and lower type lines, and these type wheels through pinions and sleeves on a shaft 437 also set the type wheels of the second amount group. The amount racks also gear with pinions 423 on the tube line 421 and through arrangements of sleeves on this line and on the upper type line the settings are conveyed to the first and fourth amount groups. The account number typewheels 457 and the date wheels are similarly set by pinions 452 and the known milled setting- sleeves 460 respectively. Known forms of aligning mechanism for the setting-racks and the typewheels are described in the Specification. The platens 584, Fig. 10, corresponding with the four groups of amount wheels in the upper type line, are each mounted in a cylindrical member 621, vertically slidable in the platen-carrying frame 583 rocked for impression by Geneva mechanism. Levers 622 loose on a spindle 629 engage at one end through eccentric adjustable collars with the respective members 621 and are bifurcated at the other end to engage cams 625 on a shaft 626 adapted to be rocked by link 628 and multiarmed lever 616, Fig. 3, controlled through a cam 613 by the differential mechanism of the balance bank. It will be seen, therefore, that according to the nature of the particular operation to be performed, the shaft 626 will be turned more or less and will cause one or other of the members 621 and its platen 584 to descend into effective position, the other amount-impressing platens remaining ineffective so as not to print the amount in the columns not concerned. The platens 695, Fig. 3, for impressing the card and book against the lower amount type wheels are carried by momentum against the record material by means of a yoke 698 pivoted at 588 controlled by a spring 709 and rocked and released by a two-lobed cam 707, Fig. 6, bell-crank lever 703, and a link 702 notched at 701 so as normally to connect with the yoke by means of pin 700. In normal operations two impressions are made, due to the two lobes of a cam 707, but in order that a single impression may be made, as when a card only is inserted, manual means are provided for shifting the cam axially to place one lobe out of action, the other lobe of greater width remaining effective to rock the bell-crank lever 703. The platens corresponding to the date wheels and the four groups of amount type wheels on the lower type line are selectively controlled to permit impression in one or more columns only at a time, by means of a shaped plate 739, Fig. 4, horizontally slidable on studs 741 and provided with notched extensions 738 adapted normally to support rollers 736 carried by arms 735 projecting from the various platens, which are thus rendered inoperative. The plate is shifted to free one or more of the amount platens by connection with one of the arms of the lever 616 which, as stated above, is differentially rotated under the control of the balance bank. According to its different positions the plate allows operation of (1) the withdrawal platen, (2) the date and new balance platens, (3) the old balance platen, (4) the deposit platen. To prevent interference between the plate 739 and the various rollers 736, the platens are raised by cam mechanism 758, lever 757, and a bail 755 acting on the tails of the platens, at the commencement of an operation to allow free sliding of the plate to its new position. To prevent impression when no book or card is present in the machine, a feeler 772, Fig. 5, is raised by pin-and-slot connection 773 with a pitman 775 allowed by a cam nose 777 to move under spring action to the right. If the feeler meets with no obstruction, the pitman receives this movement, and through a member 779 to which it is attached rotates a shaft 780, Fig. 6, counter-clockwise and thus bv means of a link 782 and bell-crank 783 raises the right-hand end of link 702 and breaks the operative connection at 700, 701 between this link and the yoke 698. A spring-controlled plate 787, Fig. 5, bifurcated to surround shaft 780 and slidably mounted at 788 on the member 779 carries a pin 804 co-operating with a one-way pawl 802 on an arm 801. Soon after the beginning of an operation, this arm is rocked counter-clockwise and if a. card or book is present, and consequently the feeler is obstructed and shaft 780 only slightly rocked, the pawl 802 engages the pin 804 and rocks, the plate 787, member 779, and connected parts back to normal, and holds them there until cam nose 777 has completed its rotation and again functions. Paper-shields.-The plate 739 carries a second plate 752, which is suitably slotted to permit contact of the type with the card and book only in accordance with the columns receiving the impressions and thus prevent possible smearing of the record surface.