Patent GB-190428573-A (GB)
Title: Improvements in or relating to Receipt and other Stamping and Recording Apparatus.
Inventor: BOULT ALFRED JULIUS
Filed: 1904-12-28
Granted: 1905-11-23
Abstract: 28,573. Boult, A. J., [Reintanz, M., and Rothe, A.]. Dec. 28. Receipts, checking and recording; calculating- apparatus.-Hand-stamps for receipting amounts paid out are provided with means for adding all the amounts receipted. The type-wheels 12, Fig. 5, are geared with setting-discs 10, Fig. 3, which are loose on a spindle 9 carrying also loose counting-drums 17 which show the total through openings 39 in the casing, the setting-discs 10 also gearing with indicator wheels 15 which show through openings 16 the amount to be printed. The addition is performed by the motion of the casing carrying the mechanism, when pressed down for printing by means of the usual spring-governed handle 6. The counting-drums 17 carry ratchetwheels 18 for the addition of units, which are held by pawls 24 and are adapted to be engaged by pawls 20 carried by intermediate parts 22 on arms 19 secured to the spindle 9. The spindle is partially rotated during the movement for printing by arms 40, Fig. 4, carrying pins 42 projecting through guide-slots 41 in the casing and engaging the walls of guides 43, Fig. 1, in the outer frame. Thus the pawl 20 is passed over a stretch of ten teeth on the ratchet-wheel 18 and is arranged to be thrown into engagement with the ratchet by a circular projection 21 on the setting-disc 10 meeting the supporting-piece 22, so as to move on the ratchet-wheel 18 the same number of teeth as the figure set. For carrying the tens, a ratchet-wheel 25, Fig. 8, on the other side of the drum can be moved on one tooth by a spring-governed pawl 27 pivoted on an arm 26 which is guided in a slot in a U-shaped arm 31. The arm 26 is drawn upwards by a spring 37 and is held by a spring-controlled finger 33 on one arm of the guide 31, the other arm of which has a projection 35 held up to the adjacent counting-drum by a spring 28 so as to be forced out by a pin 38 on the next drum and release the lever 26 in order to move the counting drum on one digit. In the form shown there are three pins 38, since there are three sets of digits 0-9 on each drum. To bring the levers 26 carrying the tens back to their locked position, as shown in Fig. 8, after release on reaching a ten, a crossbar 45 is reciprocated vertically by double arms 44 pivoted at 32, the other ends of which are held down by springs 48 and have projections 49 extending through circular slots in the casing and adapted to engage, while descending, a spring-controlled arm 47, Fig. 1, pivoted to the frame. While the casing descends, the projection 49 rides on the end of the arm 47, thus depressing the cross-bar 45 and re-engaging any freed levers 26 with their catches 33, until the projection 49 slips off the arm and descends in the slot provided in the frame. On returning, the projection forces the arm 47 aside. The setting-discs have arms 11 extending through slots in the casing fitted with scales. Safety devices may be fitted to prevent the mechanism from being operated by shocks or outside influences. The bottom plate 50 of the casing may be provided with a text to be printed with the amount.