Patent GB-324389-A (GB)
Abstract: 324,389. National Cash Register Co., Ltd., (National Cash Register Co.). Oct. 25, 1928. Printing on inserted material. - When a certain control key (or keys) is used the line-spacing mechanism is rendered operative so that the inserted slip is fed in readiness for receiving the impression in the succeeding operation. Moreover, when a total is taken the feeding roller is removed from contact with the slip to permit withdrawal of the latter. Manual means for effecting line-spacing and removal of the feeding-roller despite the key-controls are also provided. The invention is illustrated as applied to the Shipley machine described in Specifications 209,408. 223,939. and 224,244. Line-spacing feed mechanism : The inserted slip 43, Fig. 7, is gripped by rollers 45, 46 of which the latter is driven by a gear wheel 72 engaged by a driving pinion 70 carried by an arm 60 rocked by a link 59. Clockwise rotation of the pinion 70 on its own axis is prevented by a pawl 77 engaging a ratchet wheel 75 geared with the wheel 72. The link 59 is pin-and-slot connected to an arm 56, Fig. 6, oscillated by the cam 47 on the main printer shaft 48 and the extent of feed may be varied by raising or lowering the pin in the slot, the pin being supported by a link 80 from an arm rotatably adjustable on the shaft 54. The pitman 50 conveying the oscillations engages the cam 47 by means of a pin 49 axially slidable to render the drive operative or inoperative.. Automatic control of line-spacing : The pin 49 is shifted by means of an arm 90, Fig. 2, fixed to a shaft 91 carrying a stud 128 co-operating with the usual shifting hook 122, Fig. 11, controlled as to effectiveness by the rocking yoke 118, Fig. 12, the nose of which engages the usual rack 116 differentially positioned according to the key depressed in the control bank. In the slip used, two columns are provided for cheque entries, and when the item is to be printed in the second of these, the key marked " cheque 2 " is used. and this results in a projection 140 coming below the nose of the yoke so as to maintain the hook 122 in its lower and inoperative position. Consequently the shaft 91 is not advanced and the pin 49 remains engaged with the cam so that feed takes place, and the slip is then ready to receive an impression on the succeeding line in the next operation of the machine. If any other key is used the yoke is unobstructed by the rack, and the hook may then rise and displace the shaft 91 to withdraw the pin 49 from the cam, so that line-spacing does not occur. Manual control of line-spacing. If, despite the key-control, it is desired to line-space the slip, a lever 150 is rocked to the right or left, Fig. 15, to rock a shaft 157, Fig. 12, carrying a slotted arm 161 embracing a pin 162 on the yoke 118 to hold this in the position for disabling the hook 122. If the lever 150 is moved to the right it is restored to normal at the end of the operation by a cam-arm 165, Fig. 2, on the main printer shaft 48 engaging an arm 166 geared with the handle, but if moved to the left no engagement occurs, and the handle remains set for line-spacing. Control of feeding roller : This roller 46, Fig. 3, is supported by a spring-controlled frame 62 pivoted at 64. When the " balance " key is depressed the consequent differential movement positions a disc 201 with a projection 202 beneath a pin 203 on an arm 204. Resulting from this a bell crank latch 207 is displaced counter-clockwise, so that a pin 200 frees a spring controlled lever 197 having a guide slot at 196 to control a pawl 194 carried by a pitman 192. When the latter moves to the right, therefore, the pawl is effective upon a pin 211, and rocks the frame counter-clockwise to lower the roller 46, the frame and its operating parts remaining in their displaced positions until the next operation of the machine. A finger-piece 231 on an arm fast with the frame permits manual depression of the roller at any time, a latch 237 being provided for holding the arm down as long as desired.