374,075. Time-printing apparatus. KRANSE, A. C., 227, Blackfriars Road, Bermondsey, London. Nov. 29,1930, No. 36003. [Class 100 (ii).] The time-printing wheels of a time recorder or other apparatus are advanced stepby-step by a pawl and ratchet mechanism controlled by an oscillatory member, the movements of which are employed to render the pawl operative or inoperative alternatively or in any desired sequence of strokes. In the form shown the type wheels are advanced at minute intervals by impulses transmitted from the clock at half-minute intervals. The type wheels (not shown) and minute and hour hands 1, 2 are mounted in a casing 3, Fig. 2, the intermittent drive thereto being transmitted through a shaft 18 and gearing 15, 16 from a ratchet wheel 14 and pawl 4. The pawl 4, Fig. 1, is carried by an arm 5 pivotally mounted on a bar 9 on a lever 6 having an armature 10 co-operating with an electromagnet 11. To interrupt the effective movement of the pawl 4 a pin 21 thereon is adapted to engage the arm 20 of a trip lever pivoted on a shaft 19. The trip lever is rocked to raise or lower the arm 20 by the engagement of its arm 26 with a toothed cam 25 to which is secured a ratchet wheel 23 actuated by a pawl 22 carried on the bar 9. The ratchet wheel 23 has twice as many teeth as the cam wheel 25 so that in the successive to and fro movements of the arm 5 the pawl 4 is alternative operative and inoperative. The wheel 14 is normally held against movement in either direction by a locking tooth .30 on an arm 31. The arm 31 co-operates with an extension 34 on the pawl arm 5 so as to withdraw the locking tooth when the ratchet wheel is tu be advanced, the tooth returning to locking position at the termination of the movement. During an idle movement of the pawl arm the locking tooth remains in engaged position as the arm 31 is out of reach of the extension 34. The lever 6 may be rocked manually, or held against actuation by the electromagnet by means of a handle 36. To set the hands 1, 2 or the type wheels otherwise than by operation of the handle 36, a manually operated shaft 39 is manipulated to rock a release plate 40 co-operating with an arm 41 of the trip lever and with the locking arm 31 so as to raise the arm 20 and withdraw the locking tooth 30.