Patent GB-191411188-A (GB)
Title: Improvements in Workmen's or like Time Recorders.
Inventor: MCCABE HORACE BERNARD
Filed: 1914-05-06
Granted: 1915-05-06
Abstract: 11,188. McCabe, H. B. May 6. Factory and like time-recorders, card-type; driving type-wheels from clock; time, computing; alining and locking time type-wheels; impression mechanism; inking-arrangements.-In recorders of the kind in which numbers representing intervals of working time are printed on the workman's card at the beginning and end of a job, means are provided for interrupting the driving-mechanism of the time typewheels for an interval of time, subsequent to the movement of the main operating-lever, sufficient to enable the printing fur the end of one job and for the beginning of a new job to be effected, such interrupting means being disengaged automatically at the end of the interval without regard to the position of the main operating-lever. The invention is described as applied to the recorder described in Specification 11,480/12. In the arrangement shown in Figs. 1, 2, and 3, the time type-wheels 86 ... 89, Fig. 2, are driven by ratchet mechanism of the deep-notch kind, the pawl 26 being carried by a member 25 connected by a link 98 with a spring-controlled lever 96 adapted to be oscillated by a periodically energized electro-magnet 84. The main operating-lever 15 drives ratchet gearing 105, 106, 108, 109, Fig. 4, so as to oscillate a shaft 16 carrying an arm 17, Fig. 3, which forces down a pivoted toothed segment 19 against the action of a spring 23. The part 25 is provided with an extension 27 having a pin 28 which is engaged by a spring-trigger member 30 to lock the pawl 26 when the segment 19 is depressed. On the release of the main lever 15, the segment 19 tends to rise under the action of the spring 23 until a projection 32 on the segment strikes an arm 33 on the trigger member 30 and releases the pawl 26. The return of the segment 19, however, is retarded by a device comprising a weighted oscillating member 35 actuated by an escapement-wheel 41, which, during the return movement of the part 19, is locked by an eccentric friction pawl 43 and a grooved disk 44 to a pinion 46 gearing with the segment. The trigger member 30 may also be moved out of engagement by a hand-operated cam 51, Fig. 3, having a pointer outside the casing of the recorder to indicate the on ' and ' off ' positions, and a socket for the insertion of a key. In a modification, shown in Fig. 7, the interruption of the driving-mechanism is effected by means of a gravity pawl 60 which is normally employed to prevent backward movement, but is positively locked by a trigger member 65 when an arm 59, corresponding with the segment 19 previously described, is lowered by the movement of the operating-lever 15. Upon the release of the operating-lever 15, the arm 59 tends to rise and strike an extension 72 of the trigger member so as to release the pawl 60, but the upward movement is retarded by a dash-pot 73. The workman's card is inserted in a slot 111, Fig. 1, and the inking- ribbon is interposed between the card and the time type-wheels, printing being effected by a hammer 112 actuated by the shaft 16. The mechanism for feeding the inking-ribbon and for alining and locking the time type-wheels during printing may be actuated by a lever 113, Fig. 4. engaging a cam-surface 82 on a plate 99<a> carried by the operating - lever 15, as in previous machines ; but in order that the time type-wheels may be under the control of the interrupting-means alone after the actuation of the lever 15, a second cam-surface 83 is provided so as to release the lever 113 at the end of the stroke of the operating-lever.