Patent GB-190716997-A (GB)
Title: Improvements in Calculating and Number Listing Machines
Inventor: HOSKINS BENJAMIN
Filed: 1907-07-24
Granted: 1908-05-28
Abstract: 16,997. Hoskins, B. July 24. Typewriters and like machines.-In a lever-set, independently operated, multiple - denomination, printing adding-machine, the setting-parts adjust item - segments bearing printing-types and simultaneously actuate the totalizing-counter, which has both printing and visible numeral wheels. The machine comprises: (1) setting and item parts; (2) a casing and movable computing frame ; (3) a printing and resetting key ; (4) a paper-bearing table on which the machine rests, with means for line spacing the items ; (5) total printing arrangements; and (6) inking - ribbon feeding and reversal mechanism. Fig. 1 shows the apparatus in sectional elevation with the printing and resetting key 132 towards the front and the setting-levers 13 at the rear of the casing. (1) The setting-elements consist, for each denomination, of a lever 13 radially'spting held in a slot on the corresponding item-printing segment 14, and having a detent 36 for engaging with the recesses 35 beneath the setting-lever detent plates 34. (2) Within' the casing 1, 2 of the machine there is a frame formed by the side plates 10, connected by cross-bars 11, 12, and the shafts 4, 37, 39, 49, of which the shafts 4, 39 carry the item-wheels and totalizing-wheels respectively and are extended into slots within the sides of the casing, the sptings 7, 42 normally drawing them upwards together with the frame. (3) An inking- ribbon 72 passes over the printing apertures 70, 71, and is wound upon two rollers 73, 74. In order to depress the movable spring-supported frame which carries the computing-parts upon the paper, which is placed beneath the bottom plate 69, a key 132 is depressed and forces down a supplementary frame 74<a>, 76 pivoted at the rear upon a rod 75, whereby the whole computing-frame is moved downwards about shaft 39, a detent bar being simultaneously forced into the teeth 17 of the item-wheels before these are freed from the control of the notches 35. As the frame returns, a spring-controlled yoke automatically restores all the item wheels and levers before re-engagement with the notches takes place to give time for this operation, pawls 118 retain the frame by engaging under the lugs 122 until the yoke comes back to its normal position. (4) The sheet to be printed upon rests on the table shown in Fig. 16, which is provided with a frame of racks 91 and cross-bars 92, 93 capable of adjustment laterally to position a column of figures on any part of the paper. With the racks co-operate slots in the base of the machine casing and pinions 100 therein, whereby the apparatus is automatically line-spaced above the paper table as the items are printed. To effect this, 'a' dependent link 106, Fig. 17, attached to the computing-frame rocks a pawl arm 105 provided with a pawl 108 for operating a ratchet-wheel on the pinion, and with a slotted controlling-link 109 which carries the pawl out of engagement as the link 106 rises to its highest position. (5) Alternatively, for total printing, the key 132 is moved rearwards in its slot until it is above a cross-bar 124 connected to the shaft 39; subsequent depression of the key rocks the computing-frame about the shaft 4, bringing the totalprinting wheels down upon the inking-ribbon and paper. (6) In order to feel the inking-ribbon, the slotted pawl-bearing arms 137 are rocked at each item operation of the machine by the link-work shown attached to a slotted link 154 co-operating with a pin on the forward end of the computing- frame. Hand-mechanism is provided whereby the shifter bar 140 pivoted at 141 can be raised or lowered at either end to determine which of the feeding-pawls 139 shall be operative.