Patent GB-190319508-A (GB)
Title: Improvements in Workmen's Time Recorders
Filed: 1903-09-10
Granted: 1904-06-02
Abstract: 19,508. Palmer, A. N., Kimball, W. W., and Syracuse Time Recorder Co. Sept. 10. Time-checking apparatus for workmen. A record sheet is placed on a drum and rotated to a different position for each employee, springs are extended and released to effect the impression, during which the printing-wheels are adjusted and held, and the wheels are movable across the sheet to separate different time-records. An employee registers by rotating the arm 32, Fig. 1, and pressing a stud on the handle 34 into the hole 12 bearing his number, thereby rotating the head 30 and shaft 21, Fig. 5, bearing the platen-drum 17 on which are the record sheet 20 and rubber sleeve 19. The abutting ends of the sheet are held by [gripping-plates 24, Figs. 33 and 34, having inclined slots 27 in which pins 28 on the sliding bars 25 engage to clamp the sheet, a plate 29 holding the bars in place. Pressure on the arm 32 forces in the plunger 73 against the spring 74, and with it the collar 71 secured by a pin 76 sliding in the slots 75, a hook 79, Fig. 24, upon the flange 78 actuating a bar 42. As the spring returns the parts, a tappet 46 on the bar strikes one of the levers 44, 45, and feeds the inking-ribbon 36 by the ratchet-wheels 37<1>, 38<1>, on the ribbon drums 37, 38, the direction of feed being changed by metal shoulders 67 near each extremity of the ribbon, which engage with pins 66 to throw the pivoted lever 47 into its alternate position as determined by the spring detent 65, thereby moving the rod 63 and tappet 46. The ribbon drums are retained on the studs 54 by spring catches, and are steadied by brake-pieces 57 movable by pins 60 on the pawls 40, so that the pressure of the brake on the feeding-drum is increased by internal cam surfaces on the fixed plate 59, and diminished on the following drum. A spring coupling 83<1> and universal joint 82<1> provide for small relative movements between the clock spindle 80 and the spindle 80', on which is feathered the sliding-spindle 81, carrying the minute-printing- wheel 82, and the hour-wheel 83 on an arm 93 with lower extremity sliding in a slotted piece 97, 98, Fig. 4. An arm 89 on the minute-wheel engages with pins 90 on the hour-wheel, and has bevelled edges to force in the spring-pressed ball 91 which locks the hour-wheel. Both wheels are depressed on to the ribbon and platen by the forked lever 84 and rod 88, which are operated by the cam 100 on the spindle 99, the pinion 101, and the rack 102 on the pivoted lever 103 moved by the collar 71, a spring buffer regulating the impression. At the moment of printing the parts are not acting under external force, for as the rack moves it increases the tension of the spring 108 on the stud 109 until its point of attachment reaches a dead centre, when the spring flies home and lifts the rod. The pinion 101 is loose, but when moving anti-clockwise, as shown in Fig. 21, shoulders thereon engage with the pin 114 on the fast disc 113. An arm 117 on this disc carries a hammer 115<1> which is free to strike the bell 114<1> under the action of the spring 118 when the latter is past its point of maximum extension. The cam 100 also reciprocates the rod 126 and lever 123 pivoted at 124 so that teeth on the lever may be forced either between or upon teeth on the rim of the wheel S2, in order to adjust and hold the printing-wheels during the impression, a slot 156 and spring 159 giving the necessary play. Transverse motion of the printing-wheels is produced by a movable arm keyed to a drum on the main spindle with a cam groove in which one end of a lever engages, the other end of the lever, the sliding-spindle 81, with printing-wheels thereon, and the adjusting device being all movable with a carriage sliding upon guides, for which purpose the upper end of the rod 126 is forked and carries a pin 158. The shoulder 143 engages with notches 141 in the plate 139, and is pressed back into the groove 145 to free it. Fraudulent backward movement of the arm 142 is prevented by an oscillating-lever 146, Fig. 18, having a shoulder 148 near the first notch and another, 149, a little beyond the second, both of which co-operate with the spring stop 150 and the shoulder 143 to prevent return motion, resetting of the printing-wheels being possible only after withdrawing the stop. Operation of the lever 32 while the handle 34 is passing across the clock face is prevented by a wing on the collar 71 engaging with a stop.