Patent GB-203236-A (GB)
Title: Improvements in calculating machines
IPC: G06F7/46
Filed: 1922-03-01
Abstract: 203,236. Barr, J. M. M. March 1, 1922. Adding-apparatus for monetary &c. values, with recording-apparatus.-Machines, wherein numbers according to a non-uniform system are set up on the keyboard by the operator and are subsequently converted into decimal notation before being transmitted to the totalizing-counter, are provided with means wherebv the accumulated decimal values on the totalizer may be converted into a non- uniform system for the purpose of exhibiting these numbers visibly or of causing them to be printed automatically. As shown applied to a machine for converting decimals into British monetary units, the units and higher denominational counting-discs a of the totalizing-counter are directly associated with circuits, switches d, d<1>, and relays c, Fig. 1, adapted to actuate printing levers while the decimal value discs V, W, Y, &c. are connected through " co-ordinators " to corresponding printer relays c', Fig. 4. The carriage position of a typewriter cr other factor determining the denomination of the key depressed controls a distributor having a brush adapted to co-operate with the contacts b and close the circuit through the appropriate disc a. In the distributor position IX the brush closes a contact f to actuate a switch e and open the contacts d. The " co-ordinators " consist of electromagnets having co-ordinated relations in connection with sets of contacts which operate these magnets and contacts which are operated by the magnets. The first three decimal places only are associated with the " co-ordinators," the remaining places being used for accuracy by carrying over to the third decimal place. In the position X a relay W<1> is actuated to close contacts W<2> which causes one or other of the switches g, g<3> to close contacts g<1>, g<2> as a preliminary to further actions depending on whether an even or odd number of shillings is to be printed. A relay V<1> in position XI closes the contacts v<2> and causes the tens of shillings (if any) to be printed. In the position XII the contacts V<3> are closed by means of a relay V<4> to effect the printing of the units of shillings. In position XIII the closing of the contacts Y<2> by means of the relay Y<1> and the value of the third decimal counter disc a determines which one of a set of relays shall operate a row of contacts c<2>. These contacts are in circuits containing sets of vertically disposed contacts and relays connected with the second decimal counter disc a. The distributor positions X, XIII and XIV are utilized to effect spacing between the shillings and pence values in the result. Conductors P, D, and F, Fig. 4, are made live for the tens of pence, pence, and fractions of pence in the positions XV, XVI, and XVII through the contacts P<1>, D<1>, and F<1>, Fig. 1. In the first of these positions the contacts W<3> are closed by means of a relay W<4> and a relay h operated by the current from the counter W closes contacts d<1> to cause the tens of pence (if any) to be printed; in the next two positions the contacts D<1>, F<1> are closed and cause the pence and fractions to be printed.