Patent GB-190321678-A (GB)
Title: Improvements in Cash Registers and Indicators
Filed: 1903-10-08
Granted: 1904-03-17
Abstract: 21,678. National Cash Register Co., [National Cash Register Co.]. Oct. 8. Receipts, checking and recording. - Consists of printing-mechanism and key-coupling devices for cash registers of the type described in Specification No. 9132, A.D. 1901, having a main operating- shaft and upon it swing- ing segments limited in motion by the inner ends of the depressed keys, Each record of a sale is further marked to identify the clerk making the transaction, the machine being locked until a key for this purpose is actuated. Fig. 1 shows dollar keys b, tens keys b<1>, and one unit key b<2> for five cents., all journalled on the shaft 2, and an operating-lever a on the shaft 1 which carries swinging segments c actuating the registering-racks c<1>, each key being held by the locking-plate c<4>, Fig. 10. This plate is itself locked by a bar c<8>, which is re leased when the operating-lever is moved, the locking-plates also holding the keys in the depressed position. Release of the depressed keys is effected by a spring pawl on the operating-shaft which, at the proper time, strikes a lug on the shaft 4, and causes dogs thereon to swing back the locking-plates. Type-bars d, Fig. 2, at the side of the machine, each carry nine types representing the numbers from 0 to 9, each rack being operated by a pinion d<6> on a shaft d<4>, on the opposite ends of which are other pinions operated by racks coupled to the rack bars c<1>. The platen is an india-rubber cushion e<2> on the head e' of a lever e, operated from the shaft 1 by means of an arm e<10> which presses, during the clockwise motion of the shaft, against the projection e<8> of the arm e<7>, and forces it against the pin e<11> so as to effect a stroke of the platen through the bent lever e<4>. After passing the projection e<8>, the end of the arm e<10>, on completion of the forward stroke, falls into a groove in the under side of the arm e<7> so as to push it laterally on the return stroke and escape the projection, a spring e<12> returning the arm. The paper f<2> passes from the roll f around guides f<3> to the roller f<1>, feeding taking place through the lever f<10>, arm f <5>, pawl f<6>, and ratchetwheel shown, provided with a detent f<15>. A cam on the shaft f<4> moves the lever g<7> with pawl g<6> so as to feed slowly the wheel g<5> which carries the winding-on drum g<1> for the inking-ribbon g<3> coming from the drum g. Spring arms g<11>, f<14> act as detents and guides. The three clerks, keys h shown are pivoted on the shaft 2, Fig. 10, with inner ends normally resting on the locking-plate c<4>, and have fingers h<3> forming stops for small swinging-segments h<4>, and these, in like manner with the value segments, operate a fourth type bar h<10> so as to give a record on the paper. An indicator may be simultaneously operated. As the operating-lever is drawn down, the cam i<3> on the shaft 1 allows a spring to lift up the arm j and its projection j<4>, after which the tappet i<9> on the shaft engages the piece i<8> on the arm i<1> and withdraws the catch i, so that depressed keys will be released. The segments h<4> are simultaneously carried to their rearmost position and held there. At the end of the forward stroke of the arm, a catch k<3> engages with a projection on the shaft, and prevents the return stroke from being made until one of the clerks' keys has been depressed and the catch lifted by the upper end of the arm h<3> the hook at the top then engaging with the catch i. Each multiple of five in the tens series is registered by a single key in the following way. The units key of five cents operates a swinging segment m, Fig. 14, of normal type, and the tens segment c has a catch c<5> pivoted on the rod 3 and provided with a finger c‹ which holds the segment and is released by any key between 10 and 95. There is a similar catch m' for the segment m, having a projection m<5>, which forms a stop for the segment, and is slotted so that the operation of a key for a multiple of ten will release only the segment c, and for an odd multiple of five both the segments c, m. The same method may be applied to the case in which there is a full set of unit keys.