Patent GB-416985-A (GB)
Title: Improvements in or relating to calculating and the like machines
IPC: G06C11/10
Filed: 1933-03-25
Abstract: 416,985. Calculating-apparatus. BURROUGHS ADDING MACHINE CO., 2nd Avenue, Detroit, Michigan, U.S.A. March 25, 1933, No. 9071. Convention date, May 12, 1932. [Class 106 (i).] In a calculating-machine with a travelling paper carriage particularly adapted for the writing of public utility bills where the same item has to be printed on different portions of the bill means are provided for performing a series of operations automatically while the paper carriage is tabulated across the machine in either direction. By this means a second item can be entered and a series of operations performed as the carriage is returned by power operated means to its starting position. Means are provided for line spacing the platen at the end of the travel of the carriage in either direction of its movement and for controlling the non-add and total-taking mechanism during the series of operations. By varying the number of carriage stops a number of columns may be skipped. An example of the work done on the machine is shown in Fig. 1 wherein a bill with four separable sections has the amounts and totals printed theeonr. The invention is shown applied to a Burroughs machine of the type having an adding and subtracting totalizer 13 and a plurality of lower totalizers 14 of the interspersed pinion type. The totalizer 13 is rocked into and out of engagement with the actuator racks by means of a pitman 15, Fig. 10, connected to a three-armed lever 16 having studs 17, 18 co-operating with a pass-by pawl 19 on an arm 20 mounted on an operating shaft 21. To render the totalizer non-additive the pawl 19 is disabled by means of a member 22 connected to a pivoted member 24 that is acted upon by a lever 25 controlled by a yoke 29 arranged to be engaged by rolls 280-283 on the paper carriage 40. A total key T is provided to operate mechanism regulating the timing of the totalizer engaging mechanism. The paper carriage is urged to travel from right to left by means of a spring drum 42 and tape 43, Fig. 13, and is provided with the usual tabulating bar carrying a plurality of tabulating dogs 44 adapted to engage a stop 45 the bar being rocked by hand or automatically to give the carriage a step-by-step movement. The machine is operated by a motor 55 through a one revolution clutch 56 conditioned by depression of a motor bar 62 as described in Specification 12083/07, [Class 106]. The motor also drives an automatic carriage return mechanism 69 which is generally similar to that described in U.S.A. Specification 1,580,534. Automatic repeat mechanism. This mechanism is of the type described in Specification 193,455, [CLass 106 (i)], and the repeat operations are obtained by preventing the pass-by pawl 76, Fig. 3, moving below a stud 75 on the clockwise movement of the arm 77. The stud 75 is mounted on a lever 74 that normally rocks to move a slide 72 so as to release the latch 70 holding the motor bar depressed. The clockwise movement of the arm 77 in repeat operations is limited by a slide 80 pin and slot connected to a bellcrank 84, 85 the arm 85 of which underlies the arm of a bell-crank 86 that is connected by a link 87, Fig. 13, to a yoke 89 carrying a control arm 90 adapted to co-operate with rollers 91, 91<2>, 91<3>, 91<4> in the several column positions. When the motor bar is latched down the clutch link 66 is moved down at each machine operation by a stud 68 on the usual full stroke sector 67. Its full return is temporarily delayed by a latch 92 which is adapted to be released to permit the full movement to be completed to initiate the next machine operation by an extension 94 on the slide 80. For this purpose the arm 90 has a cam-shaped end to give the slide 80 an extra movement when the arm engages the corresponding roller. The carriage sets itself in the intermediate column positions with a roller engaging an incline on the cam end of the arm 90 to hold it in operative position. On moving to the end column position the roller 91<4> is so placed that the arm 90 is rocked to release the latch 92 and is then entirely freed so that it rises to move the slide 80 to non-repeat position and at the end of the operation through the lever 74 releases the keys and motor bar to stop the machine. A delayed action mechanism is provided to ensure that the last machine operation is not started until the carriage is at rest in the end column position. For this purpose the link 66 is not permitted to rise until a latch 106 is released from a shoulder on the lever 66. The carriage on coming to rest causes the tabulating stop 45 to rock a dash-pot lever 47 operatively connected through bell-cranks 101, 102 and a link 104 to the latch arm 105. Automatic line-spacing mechanism. At the end of the tabulating movement of the carriage the repeat mechanism is disabled and the bellcrank 84,85,Fig. 8, is rocked counterclockwise to impart a similar movement to a pivoted V-shaped member 116 so as to position a stud 111, on a link 110 attached to the fullstroke lever 67, into the short vertical branch of an L-shaped slot in a pivoted member 113. As the machine operates in the end column the member 113 is rocked and a cam notch 127 therein, by cooperation with pin 125 on a slide 126, lowers the slide to cause a stud 130, Fig. 13 on the end thereof to rock an arm 132. This movement thrusts a link 134 to the right and rocks a pivoted member 136 so that a pawl 137 pivoted to an idly vertically reciprocable member 138 enters a notch 142 in a second slide 139 that is connected at its upper end to the line spacing bar 140. Automatic step-by-step carriage return mechanism. After the line-spacing operation a second item is entered and a return motor bar 150, Fig. 3, and 8, is depressed to start a second series of operations. Depression of the bar 150 effects the depression of the motor bar 62 and an interlock constituted by a lever 154 and stud 155 ensures that the bar 150 will be held depressed or will prevent depression of the bar 150 should the bar 62 be depressed alone. By depression of the bar 150 a lever 157 is rocked and through its connection with a lever 162, having a cam end 163 it rocks the bellcrank 84, 85 to recondition the repeat slide 80 and disable the line-spacing mechanism. At the same time the bar 62 operates the motor clutch to start the machine. The lever 157 also depresses a link 170 to rock a shaft 172 the opposite end of which has an arm 173, Fig. 10, that co-operates with a pawl 175 on a lever 176 to place it in the path of a stud 181 on an arm 180 carried by a motor operated shaft 179. During an operation the lever 176 is rocked and through a link 185 rocks a bell-crank 186, Figs. 15 and 16, to displace a slide 189. This slide carries an irregular shaped member 192 which when the slide is displaced is freed from a pin 194 and rocks to operate through a pin 197 a return clutch lever 198 resulting in the engagement of a rotating gear 201 with a rack 220 on the carriage. The clutch lever 198 is normally held by a stud 207 thereon engaging the notched end 206 of a pivoted member 203, the member being moved to free the lever by a projection 208 on the slide 189. The carriage is returned slightly beyond the third column position and the return mechanism is released to permit the normal tabulating spring drum to move the carriage to the exact column position. This release is effected by an adjustable stop 222 on the carriage bar 221 engaging a pin 225 on a pass-by pawl 226 to move a slide 228 which, through an extension 233 rocks the member 192 and the member 203 to restore the slide 189 and clutch lever 198. During this movement the roller 91<4> has rocked the arm 90 so as to release the latch 92 to allow link 66 to rise for initiating another machine operation. As the carriage settles into its third column position the slide 228 is freed from the stop 222 and moves to the right until the spring 240 causes the slide to rock as shown in Fig. 19, so as to engage the guide pin 231 with the notch 242 in the slot 241. If it is desired to arrest the carriage in the second column position a stop 243, Fig. 20, is provided. Before this stop can be effective a corresponding cam 250 on the carriage rocks an arm 251 of a yoke 252 which is connected by a link 253 to a lever 254 the operation of which restores the slide 228 to its horizontal position to set the pin 225 in the path of the stop 243. This stop acts in the manner of stop 222 and the return mechanism is disabled to allow the carriage to settle back to the second column position. With a repeat roller in this position the carriage will then return to its first column position. Any column may be skipped by omitting the corresponding stop. When the carriage returns to its first column position the line-spacing mechanism is conditioned by a cam 260 rocking a lever 262, Figs. 8 and 20, having an upwardly extending arm 264 abutting against a latch 266 that co-operates with a stud 267 on the V-shaped lever 116 to move the stud 111 on the link 110 into the vertical part of the notch of the member 113. When the machine is operated the slide 126 is depressed to render the linespacing mechanism effective. At the same time a pin 270 on the slide rocks a bell-crank 274 which through an abutment face operates the repeat slide 80 to disable the repeat mechanism and release the motor bars 62, 150. As the operation is completed the repeat roller 91 bears on the arm 90 to move the repeat slide 80 to its operative position and disable the linespacing mechanism. Non-add control mechanism. The amount entered is non-added in the first three columns by the means above described through the provision of the rollers 280, 281, 282. The roller 283 is active but means are provided to disable it for the first operation in the fourth column position. For this purpose a pin 284 on the link 134 of the line-spacing mechanism co-operates with the arm 285 of a yoke 286 another arm 287 of which co-operates