Patent GB-601703-A (GB)
Title: Apparatus for recording and computing working time
IPC: B42D12/02
Filed: 1945-08-03
Abstract: 601,703. Statistical apparatus. FINDLAY, A. J. Aug. 3, 1945, No. 20054. [Class 106 (i)] Apparatus for making calculations from a time card provided with spaced timerecording markings indicating, respectively, the beginning and ending of a definite time period, the duration of which is a measurable function of the distance from one marking to the other, comprises a pair of distance measuring elements, at least one of which is movable relatively to the other to enable one element to be positioned at one of the markings so that, when the elements are so positioned, the distance between them corresponds to the distance between the markings, and calibrated indicating means operating in response to the positioning of the elements to indicate the distance between the markings, the indicating means being calibrated to show the distance in terms of predetermined units and fractions of units of time. The computor is adapted to deal with an employee's time card (Fig. 1, not shown), or a job-costing card, Fig. 2, in which the times of starting and completing various jobs are represented by punched holes A ... E. Additional holes D and H represent the correct time for starting work in the morning and after the lunch break, respectively. The card 29, Fig. 3, is slid between guide channels 43 on a holder 41 and, by depressing keys 47 and 55, pins 52, 59 and 46 are lifted to allow the card to pass underneath. The key 55 rocks a block 53 to lift an arm 48, and also rocks a tube 49 in which slides a guide member 65 having an arm 58 projecting through a slot in the tube 49. Besides carrying the pin 59, the arm 58 terminates in a pointer 60 co-operating with two scales 61 and 76, the scale 61 being a time scale in which, e.g. one inch =one hour, and the scale 76 being one of a series of " rate per hour " scales hinged to a drum 79 which can be rotated by a knob 87 to bring any desired " rate scale," as indicated by a drum 90, alongside the time scale 61. The pins 59 and 52 are engaged with spaced perforations in the card, and the time and cost are read from the scales 61, 76 and entered in columns 35, 36 of the card. The pin 46 serves to engage the. hole H or D in cases where the employee has " clocked on " in his own time. An adjustable stop 68 on the tube 49 limits the movement of bar 58 to the maximum number of hours of work permissible. To provide for the lunchtime break, the drum 79 carrying the scale 76 is adapted to be pushed axially by the knob 87 against a spring 86 so that, in effect, one hour is deducted when reading from the scale. Means are also provided for stepping the card across to bring the pins 52, 59 opposite successive columns of the card. The card holder 41 is attached to a sliding channel member 117 at the back of the instrument by rivets 118 passing through a slot 120. The channel member 117, Fig. 5, carries a ratchet 116 co-operating with a stationary pawl 124 and a pawl 106 pivoted on a bar 105 which is movable longitudinally by a lever 102 operated by a knob 99 (see also Fig. 3). Movements of the knob 99 to the right from its central position steps the card holder towards the drum 79 ; movement of the knob to the left lifts both pawls 106, 124 out of engagement with the ratchet 116 and allows the holder to be returned by a spring 128.