Patent GB-425150-A (GB)
Abstract: 425,150. Date and time printing apparatus. ZWEIG, J., 7026, Amherst Place, University City, Missouri, U.S.A. June 23, 1934, No. 18591. [Class 100 (ii)] [See also Group XIX] Atime-recording apparatus comprises a machine into which cards are inserted, the time of insertion being printed on the card upon the operation of a handle and the card then being automatically stacked in a locked receptacle. The machine is operated by pulling to the left, Fig. 2, a handle 100. The mechanism is enclosed by a casing secured to a base by latches accessible only through a normallylocked door 10, which door also gives access to the card receptacle. Each time the door is opened a counter 13 is actuated. Driving the time-printing wheels. These wheels comprise a wheel 28, Fig. 6, having fifteen groups of markings " OO " " 15 ", " 30." " 45 "-for recording fifteen-second intervals, a minutes wheel 29, an hour wheel 30 carrying type " 1 " to " 12," and a days wheel 31 having fourteen markings-" Sun. a.m.", Sun. p.m." " Mon. a.m.", &c. The seconds wheel rotates four times per hour. These wheels are actuated by a synchronous motor 61 driving, through gearing 60 and a flexible coupling 58, a shaft 51 to which is frictionally connected a gear 50 engaging a gear 48. A pin 66 extends radially from the hub of the gear 48 and engages springs 65 secured to a gear 64 meshing with a gear 68 on a sleeve carrying the seconds wheel 28. The minutes wheel 29 is driven directly from the gear 48 by a gear 47. The gear 48 is freely mounted on a shaft 49 and a projection 77 on the gear can engage a pin 76 in a collar secured to the shaft. A weight 79, Fig. 7, and a disc 72 having a gap 73 and pin 74 are also secured to the shaft, the gap and pin co-operating with a Geneva wheel 70 on the sleeve of the hours wheel 30. The projection 77 turns the weight 79 through 180‹ into its highest position, when the weight overbalances and falls a little until another pin 80 in the shaft 49 engages a lug 81 on a lever 82. The lever 82 in then rocked by a cam 85 on the sleeve of the minutes wheel, the pin 80 is released and the weight swings to its lowest position, the hours wheel being suddenly actuated through one step. A pin 96<1> on the Geneva wheel 70 engages recesses in a disc 90 secured to a pinion 89 actuating the days wheel 31. The disc 90 is normally locked by a detent 92 released by a pin 96 on the Geneva wheel 70. During printing, the detent 92 is locked by a bar 130 and the minutes and seconds wheels by pawls moved to engage ratchet wheels 38, 40 connected by sleeves to these wheels. Printing. The operating handle 100 swings anticlockwise a shaft 98, Fig. 11, and moves to the left a link 102 which rocks an arm 108 on a shaft 107 against the action of a spring 110. The link 102 is lifted by a cam roller 104 until it escapes from contact with the arm 108 of the shaft 107, the shaft then being returned rapidly by the spring 110 to cause the printing hammer 116 to strike the inserted card and press it against an ink ribbon and against the wheels 28..31. The hammer 116 is flexibly connected to the shaft 107 by a spring. Full-stroke mechanism. A ratchet wheel 183, Fig. 11, secured to the shaft 98 is engaged, during the first or anticlockwise stroke of the handle 100, by a pawl 186. At the end of this stroke a plate 196 pivoted to an arm 190 on the ratchet wheel 183 over-rides a pin 189 on the pawl. During the reverse stroke of the handle the pawl is lifted from the ratchet by the action of the plate 196 on the pin 189 until the pin falls through a hole in the plate.