Patent GB-190902119-A (GB)
Title: Improvements in or relating to Adding Machines.
Inventor: VINCENT JESSE GURNEY
Filed: 1909-01-28
Granted: 1909-09-30
Abstract: 2119. Vincent, J. G. Feb. 7, 1908, [Convention date]. Adding-apparatus; varying functions of machine.-A machine of the Burroughs type, as described in Specification 17,126/93, is adapted to operate (1) in the normal way as an integral machine; (2) when " split " at a predetermined fixed point and both sections are required to totalize independently ; and (3) when split as in (2) and the total of the left-hand section of the machine is not required. Under the conditions (3) the registering - wheels of both sections are employed to totalize the items set up on the right-hand section, and totals or sub-totals may be printed with the hammer-tripping function of the machine for the control of zero-printing automatically and temporarily restored, but with out interfering with the "split" condition as regards subsequent items. A group of receiving-pinions, corresponding to the left-hand section of the machine when split, is mounted in a rocking frame 920, Fig. 8, similar to the usual Burroughs rocking frame 910 and pivoted on the same bar 900. Two latches F, F<1>, Fig. 2, attached to the frame 920 are provided, either or both of which may engage the cross-rod 958 of the frame 910 and so cause the two rocking frames. to partake of the rearward motion of the frame 910. The forward motion of the latter is always communicated to the frame 920 by means of the cross-rod 910<b>, Fig. 7, of the frame 910 ; its rearward motion is, however, not thus communicated, as the slot e provides sufficient play for this purpose. (1) When the button C<3>, Fig. 1, is opposite the word "Normal" on the index-plate, the latch F<1> is normally disengaged from the cross-rod 958 by the pitman 914 during the registering of items, but the latch F engages therewith. Upon lowering the pitman by means of the total or sub-total keys, the latch F<1> also engages the cross-bar ; thus throughout the complete series of operations the two sections of the registering-device or counter more together. Controlling printing of zeroes.-(2) Upon placing the button C<3> at "Split," a bar C<2> is moved rearwards and a cam projection c<5> thereon depresses a bar C the hook c of which has hitherto, by engaging with the stud b, supported the forward end B, Fig. 2, of a spring-controlled bail B<2>, B. The depression of this bail elevates the rear end of a spring-controlled coupler-bar A, such as is described in Specification 27,269/07, having studs normally engaging (in the case shown) the second and third hammer latches 717, Fig. 6, counting from the left, and causes the machine to be split, or the cipher-printing function to be interrupted, between the corresponding denominations. Coopetation between the other latches is effected, as usual, by means of overlapping tails d. The two sections of the counter move together as before, but in this case the items set up on each section of the machine will be totalized by the corresponding section of the counter. The operation of the counter during the taking of totals or sub-totals is the same as before. (3) When the button C<3> is moved to the word "Date" on the index-plate, a second camprojection c<6>, adjacent to but larger than the projection c<5>, depresses the bar C, a pin m<2> on which engages in a slot in a link M<1>, and thus depresses a stud m<3> thereon as described below. Another cam projection f<4> on the bar C<2> rocks a lever F<2>, F<3> and, by means of a hooked link F<4>, disengages the latch F from the cross-rod 958. In the normal position of the pitman 914 during the registering of items, both latches F, F<1> are disengaged, and though the two sections of the counter move forwards out of gear with the usual racks 610 simultaneously, the left-hand section of the counter, comprising the "extended-total pinions," is held out of engagement by its weight and by the spring j during the return of the right-hand section, and is only moved back at the end of the stroke of the operating-lever by means of a slotted link 920<d> for the purpose of registering figures of the extended total carried over from the righthand section of the counter. For this purpose also, the rack 610 corresponding to the right-hand extended-total pinion is prevented from receiving the usual excess movement, due to transfer from the next lower pinion, while the extended-total pinions are out of gear with their racks, by means of a spring controlled latch 413<a>, Fig. 7, which always engages with a lug h<2> on an extension of the frame 920, and follows the movement of the left-hand section of the counter. Thus, when the usual latch 413 of the next lower pinion is tripped and disengages the stud 414 upon the rack corresponding to the right-hand extended-total pinion, the rack is held by the engagement of an arm h upon the latch 413<a> with the same stud until the extended-total pinions are rocked rearwards into gear with their racks. Printing totals and sub-totals.-Upon the depression of the total or sub-total keys, the latch F<1> engages as before with the cross-rod 958, and both sections of the counter move together. Simultaneously with the depression of the total key, a two-armed lever 227<a>, N, is rocked by a link 226 so that its extremity n engages the stud m<3> upon the link M'. The rear end of the bent lever M is thus depressed and causes the forward end of the bail B to be elevated, thereby releasing the couplerbar A and causing the restoration of the hammertripping function from side to side of the machine. A locking-bail 926 of the usual form locks both sections of the counter whenever they are out of engagement with their racks, and at the end of a grand-totalling operation the counter is returned into engagement therewith by the usual means, consisting of an arm 919 actuated by a roller 311<a> on the full-stroke sector.