Patent GB-454724-A (GB)
Abstract: 454,724. Cash registers. DEMEULENAERE, M., 62, Avenue Emile Duray, Brussels. April 13, 1935, No. 11453. Convention date, Jan. 26. [Class 100 (iv)] [See also Group XIX] Index type - wheel machines.-The machine comprises a number of totalizers G, Q, A, B, Fig. 1, and an indicator I mounted on a shaft 12 and actuated simultaneously, denomination by denomination, by the differential rocking of the shaft. The shaft is controlled by a single lever 44, operative upon forward movement to rock the shaft and upon rearward movement to release an escapement and thus select the next lower denomination of totalizer and indicator wheels for subsequent actuation. The operation is completed by a handle 75, rotation of which actuates the item-printing mechanisms. The totalizer and indicator wheels 10 are each provided with ten internal keyhole shaped recesses 28A, 30G, 30Q, 30A, 30B, 30I, Fig. 2, on a slide 17 movable in a longitudinal slot in the shaft 12 and rotatable therewith. At the beginning of an operation, the insertion of a clerk's key 37 shifts the slide to the left against the action of a spring 18 and engages the pins 30 with the wheels 10 of highest operable denomination. Now upon the rotation of the operating lever 44, Figs. 1 and 13, through an angle commensurate with the integer to be entered in the highest denomination, the shaft 12 and pins 30 rotate the wheels 10 correspondingly. The operating lever is connected to the shaft 12 through a pawl 46, wheel 47 and pinion 48, movements of the lever being indicated by graduations on a plate 45a. The shaft is rotated against the action of a spring-urged gear 55 and is held in set position by a detent 57. Manual depression of a tail 58 of the detent disables the latter to permit restoration of the wheels of a denomination 10 should they have been improperly actuated by the lever. The integer having been entered, the operating lever is rocked rearwardly to release an escapement and allow the slide to move one step to the right, in which position the pins 30 engage the wheels 10 of next lower denomination. The escapement comprises a pair of arms 21, 22 pivoted on a headed stud 50 and co-operating with peripheral ratchet teeth 2 on a cylindrical extension 19 of the slide. As the operating lever rocks rearwardly, an abutment 441 thereon moves the arm 22 into engagement with the teeth 20, the arm 21 being simultaneously disengaged by contact of a pin 49 with the arm 22. The slide and arm 22 now move to the right against the action of a weak spring until arrested by the head of the stud 50. Upon the return of the operating lever, the arm 21 is re-engaged with the next ratchet tooth by a spring 52 and the arm 22 disengaged and restored. The escapement may be actuated manually by depression of a tail 21<1> of the arm 21. The wheels are held in adjusted position by locking pawls 24, Fig. 1, carried by a sleeve 26 and moving as a unit with the slide 17. Pawls are omitted in the planes of the pins 30 to facilitate actuation of the wheels. The printing mechanism comprises a set of typewheels 100, Fig. 21, rigid with pinions 101 meshing with intermediate gears 107, the whole being rockable with a sleeve 105 about the spindle 78 of the operating handle 75, Fig. 1. The intermediate gears are normally in mesh with the indicator wheels 10, the type-wheels being rotated against the action of spiral return springs 110 as the indicator is set. Upon the rotation of the operating handle, the sleeve 105 is cammed counterclockwise to rock the type-wheels against roller platens 124, 125 for the voucher and record strips 122, 123, respectively. The type-wheels are locked during printing by a detent 117 adapted to engage the intermediate gears, but normally disabled by the abutment of its extension 120 with a fixed stop 118. At the end of the operation, the mechanism is returned into engagement with the indicator wheels and, upon the depression of the tail 58, Figs. 1 and 13, to reset the totalizer shaft 12, the locking pawls 24, Fig. 21, for the indicator are disabled to allow the wheels to return to zero under the action of the type-wheel springs 110. Totals are printed by the same type-wheels, Fig. 21, that are used for printing the items, the typewheels and intermediate gears being shifted as a unit longitudinally of the sleeve 105, Fig. 1, and engaged with the desired totalizer. Total printing is controlled by a handle 146 on a lever 147 pivoted on the sleeve 105. Counter. clockwise rocking of the handle, by the engage. ment of its lower end with a catch 148, rocks the printing mechanism out of engagement with the indicator to the position shown in Fig. 21. Outward movement of the handle disengages it from the catch and permits a further rocking, after which the handle is re-engaged with the left-hand side of the catch. This movement serves through a rack 149 on the lever 147 to rotate the shaft of the intermediate gears and, through arms 109 thereon, and studs 108 on the gears, to rotate the latter through one counter-clockwise revolution. The detent 117 is disabled during the operation by the abutment of the lever 147 with a projection 152, and the type-wheel springs 110 are all stressed. The printing mechanism is now slid along the sleeve 105 and the intermediate gears engaged with the wheels of the selected totalizer, the locking-pawls 24 of which are disabled by a bail 83. Upon the retraction of the handle and its re-engagement with the left-hand side of the catch 28, the gears are freed and rotate the totalizer wheels backward to zero, in which position they are arrested by the abutment of studs 841 with a bail 156. The totalizer reading is thus transferred to the type-wheels and, upon the rotation of the operating handle, is printed on a sheet carried by a long platen 157 in the same manner as an item. Line-spacing mechanism.-The voucher strip 122, Fig. 23, passes from a supply roll 126, over the platen and feed roller 124 to a severing knife 142 and delivery shoot 127. The record strip 123 passes from a supply roll 128, over the platen and feed roller 125 to a storage roll 129, the supply and storage rolls being carried by pivoted arms 130, 132 and urged towards one another and the feed roller by a spring 133. The feed rollers are driven through pinions of unequal size from a gear 138 that is rotated step-by-step by a pawl 136 actuated by the sleeve 105 of the printing mechanism.