Patent GB-386331-A (GB)
Abstract: 386,331. Calculating-machines. ELLIS ADDING-TYPEWRITER CO., 338, Elizabeth Avenue, Newark, New Jersey, U.S.A.-(Assignees of Perkins, N. W. ; 130, South Oraton Parkway, East Orange, New Jersey, U.S.A.) April 15, 1931, No. 11093. Convention date, April 17, 1930. [Class 106 (i).] An adding and subtracting machine having a travelling paper carriage is provided with a plurality of auxiliary totalizers arranged around common differentially-rotatable gears and controlled alternatively by stops on the paper carriage and by control keys. The invention is shown applied to the Ellis machine described in Specification 28253/08, [Class 106, Registering &c.], and the auxiliary totalizers may be used in conjunction with the usual Ellis totalizers. Totals may be transmitted between the auxiliary totalizers themselves and between the auxiliary totalizers and the usual totalizers. The usual totalizers may be carriage-controlled as shown in Specification 348,105. General arrangement. Extensions 100, Fig. 4, are attached to the usual actuating racks and mesh with gears 105 around which the auxiliary totalizers 135 are disposed, the gears 105 being freely mounted on a shaft 106. Totalizing counters ; transfer mechanism. Each totalizer 135, Fig. 6, is mounted on a shaft 133 supported in a frame which can slide radially to engage the totalizer with the gears 105. The sliding of each frame is caused by the rocking of a respective shaft 143 having a lever 142 which engages projections 132a, 141 on the totalizer frame. To each totalizer wheel is secured a cam 136 co-operating with trip mechanism to control a transfer sector 124 restored by a bar 144. The Specification as open to inspection under Sect. 91 states also that the cam 136 trips a lever 138 pivoted at 134 and having a fork engaging a pin on a trip lever 128. The trip lever 128 releases a member 125 pivoted on a shaft 122 and urged to rotate by a spring 129. When the totalizer wheels are in engagement with the sectors 124 the bar 144 moves to the right, allowing the released members 125 to rotate and to carry the sectors 124 with them by means of a pin-and-slot connection 127, thus effecting the transfer. This subject-matter does not appear in the Specification as accepted. All the bars 144 are carried by a spider 145, Figs. 4 and 18, secured to the shaft 106. This shaft is rocked by a link 169, Fig. 1, actuated by a " flying " lever 170 pivoted on a plate 173 on the main shaft. The outer end of the link 169 is pivoted to a cam lever 167, Fig. 18, carrying a roller 274 which, when the lever 167 is rocked anticlockwise, engages a lever 275 pivoted at 277 to an arm 273 attached to the shaft 106. The shaft is thus rocked anticlockwise and is held by the arm 273 engaging a spring-controlled detent 279. On the return movement of the lever 167 the outer edge of its cam releases the detent 279. Key control of auxiliary accumulators. Taking totals. An adding control key and a total key is provided for each auxiliary totalizer, together with a common sub-total key for all the auxiliary totalizers. To each shaft 143 is secured a crank 147, Fig. 1, carrying a pivoted latch 148 which can be hooked either over a pin 149 secured to a disc 150 or over a pin 151 on a disc 152. Upon the depression of an adding control key, its latch acts on a pin 212, Fig. 13, secured to a lever 159 carrying a link 158 which is thus moved to the right to rock a lever 154 and to hook the corresponding latch 148 over the pin 151 on the disc 152. The depression of a total key, through the latch 213 and pin 214, causes the link 158 to move in the opposite direction to hook the latch 148 over the pin 149 on the disc 150. The disc 152 is rocked to effect the engagement of the selected auxiliary totalizers by the link 169 and cam lever 167, Fig. 18, actuated by the flying lever 170, the cam lever 167 engaging a roller 160 on the disc 152. The totalizers are engaged for total-taking by the movement of the disc 150. This is caused by a second flying lever 165 connected by a link 164 to a cam lever 162 engaging a roller 160 on the disc 150. The depression of any total key raises a totals cam 223 into the path of the end of the flying lever 165 to cause the effective operation of the said lever. The levers 162, 167 are held in their extreme positions by spring detents shown in Fig. 9. To a pin 292 on a lever 163 connected to the lever 162 is pivoted a link 291 having a slot engaging a fixed shaft 171. A similar link 290 is pivoted on the shaft 171 and has a slot engaging the pin 292. The two links are connected by springs 293. Taking sub-totals. The sub-total and the corresponding total key are depressed simultaneously, the depression of the sub-total key 1228, Fig. 13, inserting a blocking piece 229 between a slide reciprocated from the main shaft and the total-key release bar 218, causing this bar to release the depressed total key at the end of the first half-cycle, and thus to prevent the flying lever 165 returning the disc 150 until the end of the complete cycle. The selected totalizer is meanwhile held in engagement with the gears 105 by fixed pins 551 acting on the latches 148. Carriage control of auxiliary totalizers. Rods 260, Fig. 1, can be set at any desired points along a bar secured to the paper carriage. On the rods 260 are placed collars 263 and a washer 264 which contacts with one of a set of levers 268 connected by springs to links 269 pivoted to levers 270 bearing against pins 271 on the links 158.