Patent GB-406152-A (GB)
Abstract: 406,152. Calculating - apparatus; inkribbon mechanism. GARDNER CO., 534, Mitchell Street, Orange, New Jersey, U.S.A. April 25, 1933, No. 12069. Convention date, April 28, 1932. [Class 106 (i).] In a listing machine provided with several totalizers means are provided for selecting the desired totalizers and for determining the character of the operation to be performed thereon in each of several columnar positions of a transversely movable paper carriage. The sequence of operations is determined automatically by the provision of a rotary bar having a plurality of series of graded contact surfaces any one of which series may, upon rotation of the bar, be brought into position to control the selection and character determining means. Other bars are provided to control the column positions of the carriage and also its return movement. The invention is shown applied to a machine of the Gardner type as described in Specifications 293,080, [Class 106 (i), Calculating &c.], and 389,632. The movable paper carriage Figs. 4, and 13, is provided with a tabulating bar 1 composed of angle members welded together at their apex, and formed with sets of notches 2, a tubular bar 82 with graded apertures 81 for the purpose of selecting the totalizers for actuation, and a bar 195 composed of angle members with cam shoes 196 adapted to control the line spacing mechanism and the means for returning the carriage to initial position. These bars are removably mounted in the carriage frame and are connected by sprocket gearing whereby the bars can be adjusted angularly to change the operative sequence. The carriage is secured against lateral movement, under the influence of a spring drum, by means of a projection on a lever 7, Fig. 2, pivotally mounted on a lever 20 the lower end of which carries a roller 23 movable in a slot 10 in the casing. During the movement of the carriage by hand to its initial position the lever 7 is freed and the lever 20 is rocked under spring action into the dotted position. At the end of this movement the lever re-engages a notch 2 in the bar 1 and the spring drum restores the lever 20. This lever on its return movement, through a trip pawl 25, Fig. 3, engaging the roller 23, releases a latch 27 from a spring controlled plate 33 which rocks so that its arm 36 through a pin 37 rocks a cross bar 39 and frees the pawl 43, Fig. 19, of a one revolution clutch 24 so as to operatively connect a shaft 47 to the motor 48. At the same time an arm 59 of the control plate rocks a lever 61 and through an insulated roller 63 closes the contacts of the motor circuit. The clutch 24 is pinned to a cam disc 55 keyed on a shaft 56 and the cam part at the end of a revolution through a roller 202a, lever 203a, and link 204a, restores the control plate 33 and releases the clutch 24. The shaft 56 is connected by a crank 58 and link 67 to a rock arm 69 carrying a pin 71 adapted to co-operate with settable cam members 73, 74, and 75, Figs. 4, and 9, for selecting the totalizers. As the carriage tabulates to the desired columnar positions a corresponding group of apertures 81 in the bar 82 will be presented to plungers 83, 84, 85, Fig. 3, on coaxially pivoted levers 86, 87, 88, so as to control the selection of the line totalizer 76 or column totalizers 77, 78, Fig. 8, respectively. The plunger 83 for the No. 1 or line totalizer is connected by a link 96 to a positioning lever 93, Fig. 4, provided with a slot engaging a pin 92 on the rock arm 69 and acted upon by a spring 94. As the arm 69 is rocked by the crank 58 the lever 93 through its spring imparts movement to the plunger 83 which movement will be arrested by the bar 82 if no aperture is present or will continue to an extent determined by the size of the aperture 81. During the continued movement of the arm 69 the lever 93 sooner or later turns about the point 97 and a projection 98 on the lever meets one or other of the surfaces 99 ... 102 of the cam members 73, 74 so as to set them with respect to the roller 71 which is displaced on the upward movement of the arm 69. The cam members 73, 74, which are mounted on a shaft 110, are connected by a spring 111 and cooperate with projections 113, 115 on a gear segment 105. On the return movement the roller 71 contacts one or other surface of the set cam member to impart a movement to the segment 105 in one direction for addition and in the other direction for subtraction. If no aperture is present the segment remains inoperative. The segment when operated rotates a pinion 474 to operate control mechanism as described in Specification 293,080 to put the totalizer into and out of engagement with the usual differential actuating sectors 610, Fig. 8. This operation is effected through the action of the control cam plate 419 which is connected by a link 321, Fig. 10, to the usual rocker or flicker device 325 controlled by the operating cam arms 316, 320. The movement of the totalizers 77, 78 into and out of engaging position is effected in a similar manner ; the mechanism for moving totalizer 77 is shown in Fig. 9 wherein the positioning lever 127 is caused, by the movement of the plunger 84, to rock the cam 75 in one or other direction and the return of the roller 71 rocks the segment 126 to operate, through the pinion 133 the control mechanism. The timing of the engagement or disengagement is determined in the usual manner by the depression of the plus or minus bars 138, 139 setting the flicker device 325. The depression of either bar releases a latch 147 from a lever 150 which under spring action operates the lever 61 to complete the motor circuit and at the same time frees a pawl 153 which engages a clutch disc 157 operatively connected to the motor. The disc drives a crank arm 155 and link 161 to operate the cam arm 316 which is connected by a linkage 162 to impart an oscillatory movement to a shaft 164, Fig. 12. During the counter clockwise movement of the shaft an arm 173 thereon raises a lever 171 and rocks a bell crank 167 which through a pin 176 rocks a shaft 178 to raise a lever 179. A projection 180 on the end of the lever 179 lifts a latch pawl 182, Fig. 2, pivotally mounted on a trigger 184 which is carried upwardly until its projection 188 overlies the projection 6 of the lever 7 whereupon the pawl 182 is freed from the projection 180 and the trigger 184 by the action of its spring is lowered to disengage the lever 7 from the notch in the tabulator bar 1 and the carriage moves to the next column position, the trigger being rocked to free the projection 6 during this movement. At the end of the operating cycle a projection 370 on the crank arm 155 contacts with the lever 150 to disengage the clutch pawl 153. In the extreme desired position of the carriage a cam shoe 196 on the bar 195 engages a roller 197 on the arm of a square shaft 199, Fig. 4, the shaft being rocked counter-clockwise to impart movement through bell cranks 203, 205 to an arm 210, Fig. 2, the end 212 of which rocks a latch 214 out of the path of movement of a transverse bar 216, Fig. 12. This bar is normally held raised by a roller 217 on the lever 179 and when the lever is lowered on the forward movement of the operating cam arm 316 the bar is free to move and under action of a spring 880, Fig. 21, a pawl 814 is moved to engage a ratchet wheel 820 on the platen. The pawl is carried on an arm connected to a link 816 the other end of which is connected to an extension 819 attached to the bar 216 so arranged that on return of the parts the pawl is effective to line space the platen. At the same time a projection 280 on the arm 210 co-operates with the latch 182 to move it out of the path of movement of projection 180 to render the carriage escapement mechanism inoperative. To the square shaft 199 is secured an arm 218 connected by a spring and link to a hooked latch 222 pivoted on a plate 223, Fig. 14, and held against a roller 224 on the lever 163. As the lever is rocked the hooked end of the latch moves into the path of the roller 225 so that on the return movement the plate 223 is rocked to operate, through a flexible link 226 a clutch member 227 having projections 228 engaging indentures in a pair of discs 229 loose on a sleeve 230, Fig. 15, secured to the shaft 231 of the carriage return mechanism. The clutch member 227 moves the discs laterally to engage frictionally a plate 234 on the shaft with a drum 235 loose on a bearing 236. When the plate 223 is rocked the motor circuit is completed and the shaft 231 will be rotated to rotate the drum 235 and wind-up ribbon tape 241 to return carriage. At the initial position a cam shoe 196 with surface 243 rotates shaft 199 to disengage latch 222 from roller 224 to release plate 223 and open clutch parts and motor circuit. To prevent an operating cycle while a carriage shift and subsequent totalizer selecting cycle is taking place an interlock lever 275, Fig. 3, is provided to co-operate with the plate 33, the tail 267 of the lever 150, and with a tail 268 of a lever 269, Fig. 14, which levers are associated respectively with the operation keys 138, 139, and total and sub-total keys 278, 361, 273. An alternative operating key 283 is provided to effect operation of the machine by co-operation with key 138 and by its connection with the shaft 199 through a lever 285 is effective to set the line-spacing mechanism and disable the carriage shift mechanism so that the carriage may remain in any set columnar position. The lever 285 is held in displaced position by a latch 350 and is released prior to the engagement of the roller 224 with the hook 225, to render the carriage return mechanism ineffective, by co-operation with a pin 352 on the lever 163. If key 283 is momentarily depressed a link 373 is raised to lift lock lever 275 to normal position to release the control keys. If key 283 is held depressed hook 225 will engage roller 224 and so operate the carriage retur