Patent GB-1104003-A (GB)
Title: Imprinter
IPC: B41L19/00
Filed: 1965-09-17
Abstract: 1,104,003. Selective printers; cylinder presses. FARRINGTON BUSINESS MACHINES CORPORATION. 17 Sept., 1965 [2 Oct., 1964; 21 Dec., 1964], No. 39806/65. Headings B6C and B6F. Typewheel machines; index setting arrangements; machines with two sets of types; type surfaces with fixed printing matter. Invoice imprinting apparatus comprises a printing base assembly 22 on which is mounted a printing head assembly 23 including type carriers 55 for recording of sales transaction and type carriers 54 for recording of date on an invoice 46. Adjacent the type carriers 54, 55 are mounted a dealer anvil 49 and a customer's credit card, both having fixed printing matter. Type carriers 55 are set by rearward displacement of knobs 32 attached to slides 122 (Fig. 6) whose teeth 125 mesh with ratchet wheel teeth 135 carried by the type carriers. Alignment for impression.-The ratchet wheel teeth 135 (Fig. 6) are also engaged by shaped faces 146 of detents 145 attached to rods 141 which are mounted pivotally on a pin 136 and stressed differentially by springs 142 which urge the detents with a greater force into engagement with the teeth 135 when a bail 115, which is pivotally mounted on a shaft 184, is moved into engagement with teeth 149 depending from the lower edges of the slides 122. Visual indicators of types selected.-The selected type characters are indicated through apertures 29 in the selector plate 28. Index roller-impression arrangements.-Impression of the invoice 46 is effected by a roller 91 which is mounted in lugs 86 for guidance in guide slots 78 and the lugs 86 are attached to a manual operator 81. Typewheel resetting arrangements.-A type resetting knob 35 is mounted on the selector plate 28 for movement towards a finger grip 36 and attached to resetting slide 128 (Fig. 2) provided with a bent lug 129 which on engagement of ends 132 of slides 122 resets the displaced index setting slides 122. Index setting slides 122 (Fig. 5) may be reset by a lug 191 on the resetting slide 128 which rocks the pawl 175 of toggle 174-176 from the position shown in Fig. 9 to that shown in Fig. 5 whereby the bias exerted on the detents 145 by springs 142 is reduced due to the toggle action and the slides 122 are returned to their zero setting position by resetting springs 152 (Fig. 12). Hammer-locking arrangements.-To prevent actuation of the impression roller 91 with the index setting slides 122 set in zero position or of a new invoice with a previous sale record impression the impression roller 91 is associated with locking pawls 97a, 97b (Fig. 7) which cooperate with lugs 99a, 99b on bosses 38, 39 and the locking pawls are displaced upwardly on setting of any one index setting slide 122 (Fig. 5) to release the manual operator 81 for movement. Setting of slides 122 pivots arms 166 carrying a set of feeler rollers 168 which are raised upwardly by a cam surface 130 on the slides whereby arm bosses 165 (Fig. 2) engage pins 164 protruding radially from an inner shaft 156 to rotate the latter in a clockwise direction, whereby latches 171 (Fig. 8) on each of the bosses 38, 39 are caused to pull linkages 68, 67, 63 to pivot bellcranks 58 whose arms 61 raise pins 71 which engage respective pawls 97a, 97b to disengage them from their associated lugs 99a, 99b. The lock is re-established by lowering the pins when the impression roller is displaced in the impression direction to arrest the impression roller on the opposite side of the invoice, i.e. adjacent the respective one of bosses 38, 39. Lowering of pins 71 is effected by lugs 162a, 162b, which are raised by resilience of springs 147 (Fig. 10) which pivot bail 115 about pin 136 and thereby lift a toggle 174-176, which in turn pivots arms 159a, 159b, the latter rotating the outer shaft 155, so that the arms 157 (Fig. 8) attached to the shaft ends disengage the linkages 68, 67, 63 from the lugs 172 whereby the bellcrank levers 58 are enabled to rock counterclockwise under gravity about the pivots 59 and the pins 71 allowed to drop so as to clear the lugs 99a, 99b. Sheet, cards guides and holders.-Credit cards are releasably retained in guide and holder grooves or channels 45 and the invoice releasably retained in opposed pairs of clamps and guides 43, 44.