Patent GB-475606-A (GB)
Abstract: 475,606. Workmen's time recorders. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 1, 1936, No. 32937. Convention date, Dec. 12, 1935. [Class 106 (iv)] In a workmen's time-recorder wherein the time and the workmen's autographs are recorded on a continuous strip, the strip traverses a plurality of platens moved selectively into recording position by the workmen. The signatures of the same man are thus grouped together in one area on the strip. Means are also provided for preventing a second record being made in an area until after a predetermined time of the day. Thus, e.g., if a workman records in his area before 12 noon he cannot record again until after 12 noon. Selecting the platens. The platens 51, Fig. 6, are carried on a reel 31, Fig. 2, supported on and driven by a shaft 28. The record strip passes from a supply roll 125 over each platen to feed rollers 88, Fig. 4. A particular platen is moved to printing position by rotating the shaft 28 by a handle arm 18 until a handle 20 is adjacent a correspondingly numbered guide 22. Recording time and signature. The handle 20 is then rotated about its pivot 19, the end 21 engaging the selected numbered guide 22. This movement by linkage 24, 25, pushes the shaft 28 and reel 31 to the left. A member 35 secured to the shaft 28 rotates a pinion 36 having an arm 37 which lifts a slide 39 to rock an arm 43, which moves a shutter from the writing aperture 50 so that the workman can then sign his name on his own portion of the record strip. The arm 43, Fig. 6, also rocks anticlockwise a lever 56 which is thereupon latched by a latch 62. There is a lever 56 and a set of associated parts for each platen. A pin 71 on the lever 56 acts through levers and latches 67, 68 to allow a spring to rock a lever 74 so that its end protrudes from the surface of the reel as shown in Fig. 6. The lever 43 is connected by a link 90, Fig. 4, to a lever 91 which rocks the frame of a timeprinting mechanism 94 anticlockwise about a pivot 95, the frame then being latched by a latch 113 against the tension of a spring 100. The handle 20 is now disengaged from the guides 22 and the handle arm 18 is rotated anticlockwise, Fig. 4, to the dotted position shown. As the selected platen passes beneath the time-printing mechanism, the protruding lever-end 74 trips the latch 113 so that the time-printing mechanism frame 94 is rocked by the spring 100 to print the time adjacent the workman's signature. Preventing a second registration on the same platen before a predetermined time. Advancing the record strip. When the lever 56 is rocked anticlockwise, 'Fig. 6, and latched by the latch 62, a spring 59 is tensioned so that, when the handle 20 is released and the slide 39 lowered, a lever 60 rocks anticlockwise. A projection 126 on the lever 60 thus prevents the slide 39 being raised again to make a second record on the same platen. At a predetermined time of the day, a pin 102, Fig. 4, on a time-driven wheel 101 trips a lever 105 carrying a pawl which advances a ratchet wheel attached to a cam 109. A point of the cam is thus moved into the path of a notch on a ring 77 carried by the reel. When a workman next rotates the reel, the cam engages the notch in the ring while the reel continues to move, stressing a spring 79. This relative movement releases the latches 62, whereupon the levers 60 are restored to normal. The ring 77 has teeth 81 which actuate the strip feed rollers 88. One further registration can now be made on each platen.