Patent GB-190525478-A (GB)
Title: Improvements in Counting or Totalising Apparatus.
Filed: 1905-12-07
Granted: 1906-05-10
Abstract: 25,478. Soc. des Appareils de Controle et de ComptabilitÚ Automatique, Frydmane, J., and Chambon, Z.. Dec. 23, 1904, [date applied for under Patents Act, 1901]. Counting - appa - ratus; calculating- ap p a r a t u s.-The totalizing - counter described in Specification No. 1111, A.D. 1904, and employed in the handset lever-operated cash register or calculating-machine described in Specification No. 17,499, A.D. 1901, is modified by utilizing three separate positions of the laterallymovable numeral-wheels and their pinions, dependent upon the position of the operating-lever as follows : (1) during setting, on the extreme right, Fig. 1, when the pinions k of the numeralwheels j do not gear with the setting-wheels S, T, U, but are locked by, detents o' ; (2) the converse position on the extreme' left while the setting- wheels are returned by the lever and act; and (3) the intermediate position in which the pinions are free and transferring is effected. The transfer mechanism, of the type in which the equivalents of transfer teeth upon the numeral wheels determine the rocking of toothed transfer sectors by subsequently-moving and echeloned operating parts on the main shaft N, is modified to ensure positive locking, and, in zeroizing, the detents are all thrown out by a cam s', and the zero position is determined by the engagemeat of teeth v<2> upon: each numeral wheel with certain of the transfer parts. Since only the three lowest denominations are to be directly actuated by the setting-wheels, and the lowest wheel never receives transfer, the detents, which are all fast upon the spindle q<2>, Fig. 16, are of treble width and slotted for the three highest wheels, of single width for the next two lower, and of double width for the lowest. All the numeral wheels with their retaining-collars are loose upon the counter spindle e, and constitute the laterallymovable-portion, the collars r, d<2>, s being attached to rods g, h slidable in the fixed side plates a, b of the totalizer-frame, which in turn is mounted in the calculating-machine ; the lateral motion is determined by the cams R, Q on the main shaft, roller arms fast on the rock-shaft f, and the portion of a screw-thread r<1> carried by the latter and engaging a partial nut formed on the collar s. Below each wheel there is a transfer dog g<1>, Fig. 9, pivoted to a transfer sector e<1>, Fig. 10, which is loose on the rock-shaft f and is opposite the pinion of the next higher numeral wheel. Associated with these is an anchor h<1>, Fig. 11, also loose on the rock-shaft, and vibrated at each revolution of the main shaft by transfer cams l<1>, k<1>, and there is a set of such parts for each numeral wheel save the highest, with a common locking-bar n<2>, operated by cams on the main shaft, which in the extreme right position keeps all the dogs g<1> in the position of Fig. 16, with their rear ends o' engaging a recess in the frame M. During actuation, the lateral motion brings a pin h<2> upon each dog into an annnlar groove a<2> upon its numeral wheel, and at the transfer point the pin is forced downwards by a projection and a gap in the groove, locking with the anchor by means of the tooth and gap n<1>, m<1> and forcing the sector to move therewith under the influence of the transfer cams, the length of the slot in the plate M rendering overthrow impossible. If a numeral wheel does not reach " 0," its anchor will rock idly, and the cams are so arranged that the anchors are only moved with the numeral wheels in the intermediate position, and then successively, to permit of successive carrying. In zeroizing, a key is employed to turn the counter spindle, which moves longitudinally by pin and camgrcove action against a spring ; simultaneously the cam s<2> rocks an arm on the detent spindle to put all the detents out of action, and upon further rotation the pins p, q engage and the numeral wheels move round until their zero-stops are arrested by the transfer dogs, or in the case of the highest wheel by a fixed projection. Motion of the spindle in the wrong direction is prevented by a ratchet and pawl.