193,176. Ward, E. J. Nov. 28, 1921. Type-wheel machines; platen-impression arrangements.-In a machine for filling-in cheques &c. comprising two groups of type-wheels for simultaneously printing the amount in words and numerals, the keys control spring-actuated stopbars having racks geared to the type-wheels; impression may be effected by means of platen which co-operates with devices for restoring the action to the normal position. Two groups 4, 5 of type-wheels for printing words and numerals respectively, are geared in pairs to pinions 13 engaging racks 14 which are connected to actuating-springs 19 and are pivoted to stop-bars 15 arranged under columns of keys 16 co-operating with stops n - - x on the stop-bars. The stop. bars are supported by springs 20 and are formed with shoulders 21 normally engaging a plate 22. The stops may be arranged on one or both sides and at the top and bottom of the stop-bars, the keys being of graded lengths. On depressing any of the keys 16, a shoulder 23a thereon depresses and releases the associated stop-bar, and the spring 19 then moves the rack and stop-bar. the movement being limited by engagement of the key with one of the stops. For printing tens of shillings or pence, the " shillings and " pence " type-wheels are each provided with a second set of types selected by depressing the " tens " keys, which act as subsidiary keys, and then depressing one of the " units " keys. The " tens " keys are each arranged over a shift-bar which is not provided with stops, and does not engage one of the pinions 13, and the "units " stop-bar is provided with a pin 31 engaging a shoulder 32 on the shift-bar. On depressing either of the tens " keys, a finger 29<a> thereon depresses the units " bar and shift-bar, which are thereupon moved by the actuating-springs until a shoulder 30 on the " unit " bar engages the plate 22, the movement being transmitted to the type-wheels. The " units " keys co-operate with a second set of stops o<1> - - x<1> in selecting types from the second set. A similar arrangement is provided for printing tens of pounds, but in this case, the " units " key in the " tens " column acts as a subsidiary key. and the amount is printed jointly by the " units " and " tens '' type-wheals. To prevent the occurrence of blanks in printing amounts having " zero " in the " hundreds " place, the type-wheel for printing " hundreds " is provided with a second set of types for printing " thousands, " and one of the keys in the " thousands " column is arranged, in the above-described manner, to act as a subsidiary key. The cheque &c. is placed on a pivoted platen 33 connected by a link 34 to an arm 35 on a rock-shaft 36 operated by a handcrank 37. The stop-bars and racks are restored to the normal position by means of a laterally. movable rod 58 adapted to engage pins 18 on the racks. The rod is mounted on guides 44 and engages slots 62 in arms 40 on a rock-shaft 38 which is provided with hooks 41 for engaging pins 42 on the platen. When the platen returns, the hooks engage the pins, and the rod is moved forwards to restore the racks and stop-bars. The hooks are released by means of stationary pins 53, and springs 43 then return the arms 40. An erroneous setting can be corrected, before impression, by rocking the shaft 38 by means of a hand-crank 39. If repeated impressions are required, the hooks are raised out of the path of the pins 42, and are retained by catches 63. Key interlocks. -Each column of keys 16 is arranged over a sliding locking-bar 24 co-operating with lugs 26, 27 on the keys to prevent depression of more than one key in a column, and to lock the depressed key. When the platen returns, the locking-bars are restored, to release the keys, by means of fingers 59 on a rock-shaft 48 connected to the rock-shaft 38. The locking-bars are also restored when the hand-crank 39 is operated to correct an erroneous setting.