Patent GB-523532-A (GB)
Title: Improvements in totalizers for calculating machines
IPC: G06K15/04
Filed: 1938-11-07
Abstract: 523,532. Typewriters &c. REMINGTON RAND, Inc. Nov. 7, 1938, No. 32234. Convention date, Nov. 13, 1937. [Class 100 (iv)] [Also in Group XIX]  Line and spacing mechanism.-The main body of the paper carriage consists of a bar 785, Fig. 15, carrying rails 172 and rack bars 790 which run through roller (or cylinder) bearings 172<SP>1</SP> and pinions 787 respectively on a stationary rail 173 and a stationary rack 788 fast to the rails 173. The shaft 791 of the platen 175 is journalled in the end plates 792 of an auxiliary carriage which includes a long cross-bar 793. The platen is normally a little way from the type ends as shown and at printing the carriage 793 is moved forward bodily (i.e. to the left) away from the main carriage 785. At the ends of part 785 are secured two brackets 796 (one shown) in which is journalled a shaft 797 having an arm 798, Fig. 59, at each end. Each arm 798 is pivoted at 800 to an auxiliary frame end plate 792 and is connected by a link 804 to an arm 802 which pivoted at 801 to the main carriage 785 and at 803, 805 by a sliding pivot to the auxiliary frame. A spring 806 at each end rocks the arms 798, 802 clockwise. Through a substantial portion of its length the shaft 797 is slotted and receives a blade 807. A rock shaft 810 carries at each end an arm 811 with a roller 815 and the blade 807 is of such length that at whatever lateral position it may be adjusted with the carriage 785 it coacts with one or other of the rollers 815. A restoring bar 201 which rises to allow the type and actuate rack bars 176 to rise and be set, carries two posts 814 which, as the restoring bar 201 approaches its top position, rock the two arms 811 clockwise to project the auxiliary carriage 793 and the platen 175 to the left. At the same time the appropriate type 178 is struck against the paper 866 as set out below. For line-spacing the platen, the platen shaft 791, Figs. 15 and 56 carries a ratchet 816 actuated by a feed pawl 817 operated by linkage 823, 825,. 828, 830 from a shaft 831 journalled in the brackets 796 attached to the stationary carriage 785. Pawl 817 is pivoted at 818 to a plate 820, which carries a limiting pin 819 and is pivoted on shaft 791. Plate 820 is guided by pin and slot 821, 822. 829 is a fixed limiting stud for the pawl. Shaft 831 is slotted to receive a plate 832 operable by two rollers 834 (one shown) on arms 833 fast on rock shaft 835. Shaft 835 is rocked by linkage 837, 838 from cam 841 and its amount 'of rocking is determined by pin 843, on an arm 842 rigid with shaft 835, co-operating with the steps 844 of a plate 845 loose on a shaft 846. As link 823 is oscillated, the pawl 817 drives the wheel 816 and the pin 829 jams the pawl against the wheel teeth to prevent overthrow of the platen. The maximum feed is three ratchet teeth. The plate 845 has a plunger 847 which may be placed in any one of four holes 848 in a plate 850 in order to place the first (left-hand), second third or fourth step 844 opposite the pin 843 to allow a three, two, one or no line space respectively. At total-taking the plate 850 fast on shaft 846, is rocked by an arm 855 fast-on shaft 846 and link 857 from the total-taking control mechanism and to effect special linespacing at such times a plunger 853 on an arm 851, loose on shaft 846 and limited by a fixed pin 852, is placed in one or other of the holes 854 in the plate 850. A fixed pin 859 limits the clockwise movement of plate 850. Hammer and roller impression arrangements. -For each type bar 176, Fig. 59, a firing pin 883 guided in a comb plate 884 has a pin and slot connection 887, 888 with an arm 890 pivoted at 891 to a frame bar 892. As the platen 175 moves to the left (forward) towards the type bar the pin 883 is moved to the right by the arm 890 which is rocked clockwise by a motoroperated bail 897 if the corresponding head 903 is situated between bail 897 and shoulder 904 on arm 890. Each head 903 is on an arm 902 pivoted at 900 and connected by a spring 906 to linkage 905, 915, 911. A shoulder 914 on type bar 176 normally holds lever 911 clockwise and head 903 is normally raised and to the left of the position shown in Fig. 59. When a type bar rises to set a type the shoulder 914 allows lever 911 to rock counter-clockwise, spring 917 pulls down the link 915 and head 903 is pulled down into line with parts 897 and 904 so that bail 897 fires the pin 883 to the right. To prevent printing from any type bar the corresponding finger 937 is rocked clockwise from the position shown in Fig. 59 so that it obstructs an ear 918 on the upper end of lever 905, so that the latter cannot rock counter-clockwise to lower the part 903 into the active position shown in Fig. 59.  Controlling recording of zeroes.-Figs. 13 and 59. Each ear 918 is formed off leftward of its lever 905 and pivoted on the right-hand side of each lever 905 is a coupler 920 having an ear 921 by which it can be swung 90 degrees clockwise from the active position shown in Fig. 59. In this active position an ear 922 on the coupler 920, formed off right-hand, lies behind the ear 918 of the next lower denomination (i.e. the next denomination to the right). With coupler in the active position the swinging of any lever 905 counter-clockwise in Fig. 59 will also swing all levers 905 to the right until an inactive coupler 920 is reached, as shown in the third denomination from the bottom in Fig. 13.