Patent GB-750400-A (GB)
Abstract: 750,400. Cash registers; transfer mechanism; zeroizing mechanism. BRECKNELL, DOLMAN & ROGERS, Ltd., [formerly BRECKNELL, MUNRO & ROGERS, Ltd.]., and DOLMAN, H. J. Dec. 22, 1953 [Sept. 29, 1952; April 23, 1953], Nos. 24318/52 and 11205/53. Class 106(1). A cash register has at least two manually and differentially settable members for entering amounts in a totalizer and manually operable means effective to release the members for return to their initial positions under spring action and to operate the tens transfer mechanism of the totalizer. The mechanism is mounted on a plate 1 hinged to casing 3 to which it may be locked. Setting mechanism. Totalizer. Coaxial spring-loaded discs 10, 7, 32, Fig. 1, have numbered finger holes whereby they may be manually moved clockwise, until the finger engages a stop surface, to enter pence, shillings and units of ten shillings respectively. The pence disc has a further set of finger holes for halfpennies these also being exposed or, as shown, appearing in an enlarged part 17 of the opening in a shield 16 when the corresponding number of pence is dialled, the pence disc being then given a further half step of movement.. The setting discs are geared to corresponding wheels 55, Fig. 3, which actuate related totalizer drums through pawls 57 and ratchet wheels 59. A tens-of-shillings drum is arranged adjacent to the shillings drum but is fast with the pounds drum. Secured to each ratchet wheel 59 are further ratchet wheels 61 and 62, for co-operation with a transfer pawl 69 and detent pawl 73 respectively, and a transfer cam 63. Ratchet sectors 49 connected to the setting discs are normally engaged by pawls 95. After a complete item has been entered, a resetting lever 87 is operated to rock a bail 90 which disengages the pawls 95 to allow the restoration of the setting discs. The bail 90 is latched by levers 97 until the latter are engaged by pins 100 in the ratchet sectors when the levers 97 are held against stops 105. The pence and shillings discs are geared to speed governors 120. Transfer mechanism. At transfer, the transfer cam 63 engages an arm 68 of a lever 67 which then remains in its rocked position until the resetting lever 87 is operated. This rocks a series of staggered cams 80 which restore the actuated levers 67 in turn, pawls 69 carried by the levers advancing the next higher order totalizer drums through the ratchet wheels 61. In a modification, Fig. 10, the levers 67 are frictionally engaged by blade springs 200 and further cams 201 engage extensions 72 of the detent pawls 73 immediately following transfer to prevent overthrow. Zeroizing mechanism. On rotation of the totalizer shaft 56, Fig. 10, by a handle 202, spring-loaded keys 204 with bevelled ends engage notches 205 in the totalizer drums and return them to their zero positions. When the plate 1 is raised prior to a zeroizing operation, an arm 209 is moved away from the casing 3 and is rocked by a spring 210 so that a bail 207 fast therewith disengages the transfer pawls 69 and restores any operated transfer levers 67. Cash drawer. Operation of the resetting lever 87 rocks a lever 107 which trips a latching pawl to release a cash drawer. Alternatively, the pawl may be tripped by a notch in the printing drive bar 127. Printing mechanism. The resetting lever 87 may be connected to a gear segment 125, Fig. 6, for reciprocating a drive bar 127 to cause the item to be printed on a record strip. A spring- loaded detent 129 co-operates with teeth 128 to ensure a full stroke of the bar 127. A pawl 166 on the bar 127 trips a latch 176 to release a yoke 173 and printing hammers 153 coupled thereto. An impression is thus taken from type carriers 137 secured to the ratchet sectors 49 set by the setting discs. On the return stroke of the bar 127 under the action of a spring 133, the yoke 173 and hammers are reset by a plate 170 and a pawl 165 rocks a lever 177 which, in this arrangement, disengages the pawls 95 to cause resetting of the setting discs. Finally, a pawl 168 advances a take-up roll 147 for the record strip 140 which is thus drawn from a supply roll 141 between a roll 145 and a spring- loaded foot 146. A plate 179 prevents overthrow of the take-up roll. A carbon paper disc 154, Fig. 7, arranged between the type carriers and printing hammers, is fast with a ratchet wheel 159 which is advanced one step early in each operation by a pawl 160 carried by a lever 161 urged to follow a plate 164 secured to the bar 127.