Patent GB-558789-A (GB)
Title: Job cost recorder
IPC: G06K1/02
Filed: 1942-07-29
Abstract: 558,789. Time recorders. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 29, 1942, No. 10631. Convention date, Aug. 30, 1941. [Class 106 (iv)] A job recorder, individual to each employee, is provided with means to record the elapsed time, cost and other pertinent data on a card, part of the record being in printed characters and the remainder in digitrepresenting perforations. The recorder unit comprises a plurality of computing devices at predetermined rates in accordance with time, rate of wages and other information, perforating or punching elements controlled in accordance with the advance of said devices and a record card inserted when the devices are in an initial position and withdrawn when the devices are in a final position by the manipulation of a lever which controls the punching operation. In the machine shown in Figs. 1 and 4, a card holder 15 is slidably mounted on guide rods 16, 17 against the outward bias of springs 18, 19. At the commencement of a job the card is inserted in the holder which is moved inwardly until a latch 40 engages a notch in the holder. During this movement a roller 20 operates an arm 21 and slide 23 ; the slide has a pin 23a to co-operate with an arm 24 to actuate the pawl 26 of a consecutive numbering device 27 ; the slide also has a pawl 31 that co-operates with a bell crank 33 to actuate a platen 36 whereby an impression is made on the card of the serial number and starting time. The time type wheels 29 are actuated by a synchronous motor 45 which drives shafts 48, 53 at a 10 to 1 ratio. A cam 54 on the shaft 53 operates a follower arm 43 and pawl 44 to drive the <SP>1</SP>/ 10  hour type wheel. The shaft 48 carries one element 55 of a ratchet and pawl clutch, the other element 56 being pivoted on a plate 57 and normally held inoperative by a latch 60. When the card holder is in its innermost position an arm 66 is displaced to the left, Fig. 3, and a latch 67 is raised to free an arm 70 to the action of a cam 71 on the shaft 53. As the arm falls off the high part of the cam a pawl 74 on an arm 75 associated with the arm 70 pulls on the latch 60 and frees the clutch parts for engagement the clutch operating to rotate an eccentric cam 80 and rock a shaft 83 through a ring member 81. The shaft 83 is connected to elapsed time, overhead and cost computing racks 86 to actuate corresponding wheels 90. Each rack is formed with a cam slot engaged by a pin 88 on an arm 91 settable to a selected position in accordance with the variable data. The wheels 90 are each provided with stepped plates 95 and with transfer teeth 94. The transfer teeth cooperate with a latch 100 for a pawl carrying lever 101 that effects the carry-over between adjacent denominations: The levers 101 are operated successively by the engagement of byepass pawls 106 on off-set cam plates 105 mounted' on the shaft 53. After the job has been completed a lever 110 is manipulated to initiate the operation of a one revolution clutch 115, 116 through an arm 112, latch lever 113 and latch 114. The clutch member 115 is mounted on a plate 117 which drives a shaft 118 in line with the shaft 48 and carrying cams 120, 130, 150, Fig. 4, and cam 150, Fig. 5. The cam 120 operates to lower a bail 121 and to permit finger levers 122 to take up positions depending on their engagement with the stepped plates 95 of the wheels 90. The cam 130 operates a follower 131, a plate 134, a bail 135 and an arm 136 to displace punch carrying slides 125 the extent of the displacement being determined by the position of the left hand end of the levers 122 and the stepped portion of the slides 125. In each slide there is a vertical slot with a slidable punch element 145 that is guided on a plate 146 and there is a horizontal slot 141 through which the card passes. The cam 150 co-operates with a follower 151 and linkage 152 ... 156 to depress the plates 146 and thereby effect the punching operation. Thereafter the cam 160 operates to reset the whels 90 by the action of a follower and linkage which rotates the shaft 166 to cause ratchet toothed discs 167 thereon to pick up pawls 168 on the wheels. At the same time an arm 169 on the shaft 166 in co-operation with a link 170 operates to raise latch 40 and free the card holder which thereupon returns to normal position when the card with the completed record can be withdrawn by the employee.