Patent GB-217194-A (GB)
Abstract: 217,194. Seguin, L., and Seguin, A. June 4, 1923, [Convention date]. Multiplying and dividing apparatus. - The setting elements A, Fig. 2, are mounted on a carriage E which is laterally slidable relatively to the actuating elements B for the totalizer C so that after setting up the multiplicand and on the setting elements this carriage is displaced and the multiplier may then be set up on the re mainder of the setting elements. Upon operation of the main crank by hand or by power the setting elements bearing the multiplier are in turn operated by the crank to obtain the product, and preferably they automatically control the step-bystep movement of the carriage. There are as many setting as actuating elements and mounted on the carriage E are elements F which are analogous to the setting elements A but are fixed in the zero position in order to prevent actuation of the freed actuators B on the left, this transfer being, however, permissible in the totalizer. The movements of the carriage are controlled by the crank handle D which actuates, through mechanism G, the setting element A<1> immediately to the right of the right-hand actuator B, so that at each operation of the handle the number shown at a spy-hole by the element A<1> is decreased or increased by one and after this element A<1> has been moved the appropriate amount the carriage is moved to the left automatically or by hand so that the handle D co-operates with the next denomination of the multiplier. To perform multiplication, the machine being in the position of addition with all the setting elements A opposite their actuators B, the multiplicand is set on the extreme left of the setting elements. The carriage E is then moved to the right until the setting element bearing the figure of lowest denomination is opposite the right-hand actuator B. Fig. 2 shows the position for a three-figure multiplcand. The multiplier is then set in inverted order on the right of the setting elements and the carriage, then released, is moved to the left by spring pressure until the setting element bearing the figure of lowest denomination of the multiplier, i.e. the lefthand figure of the inverted multiplier, is opposite the crank handle D. At each actuation of this handle the figure on the setting element A<1> is reduced by one; the handle is thus operated so that the elements bearing the multiplier are successively zeroized, the carriage automatically moving step by step to the left and the product being finally shown on the totalizer C. Figs. 3 and 4 show the invention applied to a machine of the type described in Specification 215,706. Each setting slide 101 carries a stop 102 which co-operates with a shoulder 103 to limit the movement of the actuating disc 12 so as to add the correct number to the totalizer 160. The setting slides are mounted upon a slidable carriage 150 comprising two rods 104 joined by a handle 108 and sliding in tubes 201 mounted between fixed side-plates. The slides extend through slots 204 in the rods 104 and through long slots 205 in the tubes 201 and bear the numbers 0 - - 9 so that at each actuation of the crank handle 130 the number shown at a sighthole 106 by the setting slide coacting with the crank handle is reduced by one. Slides 151 correspond to the elements F, Fig. 2. A fixed stop 110 abuts against the left-hand side of the slide 101 immediately to the right of the righthand disc 12, the slides being pressed to the left by a spring 109. Each slide 101 has a notch 112 which is in line with the stop 110 when the slide shows 0 at the hole 106, so that as each slide co-operating with the handle 130 is brought to zero it is released from the stop 110 and the carriage automatically moves one step to the left when a projection 117 is raised from between this slide to the next on the right. This projection 117 is carried on an arm 115 rigid with a shaft 114 together with an arm 118 carrying a roller 119. The arm 115 carries a pawl 116 coacting with teeth 113 on the setting slides, the pitch of the teeth being equal to the spacing of the numerals on each slide. The roller 119 co-operates with a cam-piece 124 on an arm 123 rigid with the crank handle 130, and also carries a stud 120 coacting with springs 121, 122 fixed to the machine frame, so that at each actuation of the crank handle, first forward in a clockwise direction and then backwards in a counter-clockwise direction, the arm 115 and cam 116 are moved backwards and forwards to move the slide to the right one digit at a time, the projection 117 being raised from between the slides when the crank handle is moved forwards. 'In this manner each setting slide bearing the inverted multiplier is successively zeroized, the carriage automatically moves to the left, Fig. 4, and the product is obtained on the totalizer, as described in connection with Fig. 2. If the numerals on the setting slides are in the reverse order to that shown, the slides used for the multiplier are left at zero and the crank handle is operated until the inverted multiplier is set up on the slides, the carriage being moved to the left by hand as each denomination of the multiplier is set up. In order that the left-hand slides of the multiplier may not operate, the totalizer C as the carriage moves thus to the left dummy actuating elements and corresponding setting elements are provided on the right of the actuators B. Specification 221,192 also is referred to.