Patent GB-190010070-A (GB)
Title: Improvements in Recording and Adding Machines.
Inventor: MARKS GEORGE CROYDON
Filed: 1900-05-31
Granted: 1901-08-31
Abstract: 10,070. Marks, G. C., [Numerograph Manufacturing Co.]. May 31. Type-writers and like machines.- Relates to a machine for recording and adding numbers and for listing cheques. notes, &c. in banks &c. A series of printing discs or type carriers 1, Fig. 4, are arranged side by side and loosely on a shaft 2. The carriers have teeth gearing with pinions 4 loose on a shaft 5 and operated by setting-up segments 7 supported loosely on a hollow shaft 8 carried by a shaft 9. The selectors lie normally out of engagement with the pinions 4. When a spring-supported key 27 is operated, the disengaged selectors are rotated an amount proportional to the numeral on the key, and at the end of the rotation the end selector is slid into engagement with the adjacent pinion 4. A bar 11, having a splined connection with the disengaged selectors, is carried by arms 13 secured to the sleeve 8 carrying a segment engaging a rack bar 16 supported by a roller and operated by an arm 19 on a rock-shaft 20 carrying a crank 22 with arms 23 having lips 25 resting on the key-levers. A segment of a ratchet, fixed to the sleeve 8, is engaged by a detent lever on the rock-shaft 20 and connected to a cross-bar 29 of the space frame, as the movement is completed, so as to prevent overthrow of the parts. The space frame consists of a bar 31, extending under and operated hy the key-levers, and arms 32 journalled on the rock-shaft 20. The space bar is operated as the key completes its stroke. A second detent lever engages a second ratchet segment on the shaft 9 and is operated by an extension of the arm 32. The selectors are confined between two posts 33 secured to rack-bar 35 connected with and controlled by escapement mechanism similar to that used on type-writers and consisting of a spring drum 36, Fig. 7, carrying a toothed wheel 37 gearing with the section 35<1> of the rack-bar 35. A wheel 40 gears with a wheel 41 on an escapement shaft 42 carrying a disc 44 with a pawl 45 engaging a ratchetwheel 46 connected to an escapement-wheel 47 loose on the shaft 42. The pallet 48 having two toothed arms is carried by a rock-shaft having an arm 50 with a pin 51 pulled against the arm 32 of the space frame by a spring. At each step of the selectors, one of such selectors is freed from the bar 11, Fig. 4, which then returns to its normal position while the selector slides into engagement with a splined plate 54 carried by posts, extending from a shaft 56 and thrown out of connection with the selectors when they are to be operated back to their normal positions to set the type carriers. This operation is effected by a pick-up bar 58 passing through an opening 59, between the radial arms 60, and carried by arms 61 fixed to toothed segments 62 mounted loosely on the sleeve 8, which has shoulders to hold the arms 60 in proper longitudinal position. The pick-up bar is connected at each end to wheels 62 gearing with wheels or segments 64 carried by the rock-shaft 56 operated by a toothed segment 65 carried by a drum 66 loose on a shaft 66<1> and carrying a wheel 68, Fig. 7, gearing with a master-wheel 69 on a shaft 70 operated by a hand lever 72 oscillated between stops on the frame. When the parts have been operated so as to set-up the type, the train of wheels is locked by an arm 76, Fig. 4, fixed to the wheel 64 and having a curved end to engage a locking-rib 77 on the drum 66. The pinions 4 are held in position, when inactive, by a detent bar 78 carried by arms 79, on a rock-shaft 80, and operated by a spring and an arm 81 having a pin 82 bearing on the face of a cam 83 carried by a wheel gearing with the masterwheel. A latch 87 enables the pin to mount the surface 88 of the cam to cause the wheel, to be locked during the printing operation. A notch 90 releases the pin at the end of the printing operation. The selectors 7 are finally slid out of engagement with the pinions 4 by the action of a pinion 105 engaging the rack-bar 35 and connected with a wheel 106 loose on its shaft and operated by a pin 108 and a stud 109 on a sleeve 110 actuated by bevel-wheels 111, 112 and a shaft 66<1> carrying an arm with a pin engaging a slot in the side of the drum. To cause the bar 78 to be raised slightly in advance of the rotation, the segment teeth 65 do not engage the wheel 64 until the master-wheel has turned three tooth spaces. After the type-wheels have been set and locked, the master-wheel, the wheel 68, Fig. 7, and its cam, and the drum can be moved further, as the segment 65 has passed out of engagement with the wheel 64, so as to operate a wheel 91 on a shaft 92, carrying discs 93 having rollers 94 and pins 140 which operate spring-supported arms 95 connected to swinging standards 96. These standards carry the platen-bar 97 and the paper feed rollers 98 and 99. A segment 115 engages a segment 116 on a sleeve loose on the shaft 2 and carrying a pick-up bar 121 extending through slots 122 in the type carriers which it returns to their normal positions. The paper roll 99 is actuated by a ratchet-wheel 145 and a pawl 144 on a forked lever 141 engaging a bar 142 and pivoted at 143. A lock arm 76', carried by a wheel 64, locks the transmitting train when the hand-lever is returned to its rearward limit. The frame 24, the rack 16, and the selectors are returned by a spring secured at one end to a shaft and at the other to a drum 125 on the shaft and connected by an arm 127 and a link 128 to the cranked part 22 of the shaft 20. The drum has a ratchet and pawl to allow the tension of the spring to be adjusted. The adding-mechanism is similar except that the type-wheels are operated by toothed wheels instead of segments and are not returned to zero at the end of each operation. The selector shaft is rotated through a clutch splined to the shaft and having a pin engaging an opening in a disc loose on the shaft and having a slot to receive a pin on a pinion operated by the rack 16. This connection allows the cipher key to be operated. The bar 35 is connected to the operating section 35<11> by a screw d and a slotted arm c. To enable the result of an addition to be printed without affecting the position of the discs, the clutch is thrown out of operation by moving it to the right, when a pin on it engages an opening in a standard. The clutch is operated by a finger-piece 138 on a rod 139 operating a rock-shaft carrying a fork operating the clutch. The adding-discs have carrying-mechanism operated by studs 164 on a drum 165 operated by gearing from the handlever 72. A toothed carrying-wheel is oparated by a weighted pawl on a lever, the end of which is brought into the path of one of the pins 164 by the action of a pin, on an intermediate wheel, upon connecting levers and rods. The lever carrying the pawl is guided by a yoke, and has notches engaged by a spring catch in its two extreme positions. A spring-withdrawn pin is provided to return the adding-discs to zero, and has projections to engage projections on the discs when pressed in. To prevent printing when the adding-mechanism alone is to be operated, a clutch 190 splined on the shaft 92 is moved out of engagement with the sleeve carrying the discs 93 by a pivoted fork 193 connected as shown to a spring-supported key 199. The platen consists of a bar having a rubber facing-strip and journalled in brackets grooved to fit forks in the standards 96 and adjustable by screw studs. The frisket 209 is carried by arms 210 on a rock-shaft 211 having spring- supported arms 212. The ribbon spools are supported on the shaft 2 operated by a ratchet-wheel and a pawl 214 pivoted to a lever 215 operated by a pin 216 on the disc 93. The type-discs are separated by washers splined to a sleeve. Two of the spaces are made larger than the others for the insertion of a decimal point and a comma. The type are thin metal segmental plates engaging grooves or recesses in the peripheries of the discs. A full stroke detent, adapted to engage a wheel carried by the master-wheel, is pivoted to the frame and its arm lies in the path of pins which reverse it as the stroke of the hand-lever is completed, the detent being held in either position by a spring-supported arm.