Patent GB-191023840-A (GB)
Title: Improvements in or relating to Pattern or Record Strip Typographical-Composing Machines.
IPC: B41B25/00
Filed: 1910-10-14
Granted: 1911-10-05
Abstract: 23,840. Lanston Monotype Corporation, [Bancroft, J. S., and Indahl, M. C.]. Oct. 14. Strip-perforating machines; driving-mechanism.-(1) The punching and strip-feeding devices and the unit-measuring mechanism are actuated from the same driving- shaft 1, Fig. 3, which is coupled through a one-revolution clutch 4 with a shaft 3 driven continuously, as by a pulley 2, from a motor. The clutch is controlled as described below. (2) The strip - feeding devices, Fig. 3, are actuated in the following manner. The spool 50 is provided with a ratchet - wheel 51, engaged by pawls 54, 55 carried by levers 52, 53 pinned to slides 57, 58, which are connected by an actuating-spring 61, and are slotted to receive a pin 59 on a lever 60. The arrangement is such that, during each complete oscillation of the lever 60, the spring 61 actuates the pawls successively, thereby maintaining an even tension on the strip. The pin - wheel is provided with a ratchetwheel 31, which may engage a retaining-pawl 36, pivoted on the frame, and a driving- pawl 33, pivoted on a rotatable annular 32 which plays between stops 35. The pawl 36 is pivoted to a lever 38, which is connected to the pawl 33 by a link 37, and is connected to an arm 40 of the lever 60 by a link 41. The pawls 54, 55, 33 are adapted to be released simultaneously by a hand-lever 21, Fig. 4, which is also connected to a punch-guide arranged under the pin-wheel. (3) The strip-feeding devices and the punches are actuated from an eccentric 13, Fig. 3, on the shaft 1 through the following devices. The punches are detachably secured to rods 24 each carrying a pivoted interponent 25, Fig. 8, adapted to be swung into engagement with an actuator 27 attached to a sliding T-piece 28 which is connected by a lever to the eccentric-strap 30. The eccentric actuates the strip-feeding devices through the link 42, which is connected to the arm 40, and is connected through a yielding spring connexion with the strap 30. When the strip-feeding devices are arrested by the stop 35 or by an abnormal obstruction, the spring-connexion yields and permits the punch-operating link to continue its stroke. (4) The units-measuring and indicating mechanism, Fig. 9, comprising the usual units-wheel 75, holding-pawl 76, unitsrack 77 and stop-bars 78, is provided with devices of the following character for alternately engaging the units-rack and the holding- pawl with the units-wheel. The bars 78 are secured to stems 87 adapted to be swung rearwards for engagement by lugs 88 with an actuator consisting of a cross-bar 89 having an arm which is suspended from a lever 90 pivoted at 92 and formed with forked arms 93, Fig. 3, carrying rollers which engage a cam on the shaft 1. The rack 77 is mounted to slide in a carrier 96, which is pivoted at 92, and may swing between stops. The pawl 76 may slide radially, and is engaged by a bell-crank lever 98, which is pivoted on the frame, and is connected to the carrier 96 by a link 99 and a lever 100. The lever 100 is pivoted on one end of a lever 101, which is engaged at the opposite end by a cam 102, on the shaft 1. The link 101 is connected to a spring 103 which tends to advance both the units-rack and the holding- pawl towards the units-wheel and ensures the engagement of one of these members before the other is withdrawn. The rack is actuated by a lever 106, pivoted at 107 and connected by a link 113 to a lever 110, which is mounted on a slide 109, and is provided with a roller 111 engaging a cam on the shaft 1. The lever 110 is connected to a spring 114, which normally holds the rack against a stop 116. When the shaft 1 rotates, the lever 110 pivots on the slide 109 and advances the rack until a lug 104 engages the projected stop-bar 78, whereupon the spring 114 yields and permits the slide 109 to move and take up the excess motion. The parts are timed so that the advance of the rack occurs after the release of the holding-pawl and the engagement of the rack with the units-wheel, no pressure being exerted upon the units-wheel except during the feeding movement. (5) The machine is controlled from a keyboard of the kind comprising a series of push-bars operated by keys 152, Fig. 8, and selectively coupled by transmission - bars 157 to a series of push-bars 154 in the same plane and a series of push-bars 156 in a lower plane. The keyboard controls the interponents 25, and the stems 87 and the clutch 4 through the devices shown in Figs. 8 and 17. The bars 154 engage .a series of pivoted selectors 123 connected by links 122 to the stems 87, and the bars 156 engage a series of pivoted selectors 121 connected by links 120 to the interponents 25. The clutch-bar 12 is supported by a pivoted bar 132 formed with an offset having a depending finger 135, which normally rests on a pivoted latch 136. The latch is engaged by a trip 137 pivoted to a selector 128, which is engaged by a push-bar 156*, this being operated through the transmission - bars 157 from all the keys. When a key is depressed, the corresponding bars 154, 156 are advanced to set the parts 25, 87 in operative relation to the actuators 27, 89, and the bar 156* pushes the latch 136 away from the finger 135, the arm 132 then dropping until a stop 134 engages the actuator 27. The descent of the arm 132 permits the bar 12 to be pulled downwards by a spring, thereby closing the clutch. As the actuator 27 is elevated, the arm 132 raises the bar 12 to open the clutch, and also, by means of an extension 140, raises the trip 137 clear of the latch, which is thereupon returned to the initial position by a spring 139. The latch is thus re-set to engage the arm 132 when the actuator 27 descends, and the trip 137 when the selector 128 is retracted. The parts 25, 87 are locked in the forward position by pivoted bars 144, 145 which drop into notches 143 when the bar 132 descends. The bars 144, 145 are released from the notches by the upward movement of the bar 132. (6) For repeating a signal, as when quadding out a line, there is provided a trip 141, which engages the latch 136, and is pivoted to a selector 127, the shaft 1 continuing to rotate so long as the selector is held forward by the repeat-key. (7) Devices of the following character are provided for locking the keyboard and cutting-out the repeat-action towards the end of the line. The repeat-trip 141 is connected by a link 165, Fig. 17, to an arm on a shaft 167, Fig. 8, carrying an arm 168 embracing loosely a rod 171 depending from the units-rack carrier 101. The arm 168 is adapted to be coupled to the rod 171 by a latch 172 which is normally held back by engagement with a lever 178 controlled from the line-scale rack 82 by mechanism of the following character. The justification-drum shaft 187, Fig. 8, is connected through gearing 186 with a pinion 184, Figs. 4 and 22, gearing with a rack 183 arranged to move between shoulders 182 on a slide 181. The right shoulder 182 engages an adjusting-screw 180 on the lever 178 and the left shoulder 182 is adapted to be engaged by a pick-up slide 191 having a finger 195 in the path of stops 196 on the rack 82. The pick-up engages a pointer 197 which reads over a scale 198. Each of the push-bars 154 engages a bell-crank lever 220, Fig. 8, adapted to co-operate with a slide 222 mounted in a pivoted frame 221 which is normally held up by engagement with an arm on the shaft 167. In the normal position of the parts shown in Fig. 22, the interval between the pick-up 191 and the rack 183 is equal to the maximum possible justification plus the thickness of the shoulder 182. When the justification area is reached the stop 196 engages the pick-up 191 and trips the bell-hammer 202, so that the bell will thereafter be rung at each revolution. The operator may now close the line at once by means of a key 225, Fig. 8, or may continue the composition. The key 225 turns the indicatordrum and moves the rack 183 until the slide 181 engages the pick-up 191, the motion permitted to the drum indicating the line-deficiency. The key is formed on a rack meshing with a pinion 227, Fig. 8, on the shaft of the pinion 184. If composition is continued, the pick-up 191 displaces the slide 181 and tilts the lever 178, thereby releasing the latch 172 and advancing the slide 222 to cover successively the feelers 220, which represent space values in excess of line deflciency. The parts are arranged so that the rod 171 is coupled to the shaft 167 when the interval between the shoulder 182 and the rack 183 is equal to the space value of the largest type. When coupling has been effected, the subsequent withdrawal of the units-rack swings the frame 221 over the feelers 220, the slide 222 then preventing the operation of any key having a space value greater than the line deficiency. If the repeat-key is in action when coupling has been effected, the withdrawal of the units-rack releases the trip 141 and arrests the repeat action, leaving the deficiency to be filled by justification or by manipulation of the keys. (8) The stops 196, Fig. 4, consists of parts 214, 216 which are clamped by a screw 217 and are respectively in engagement with an undercut groove 212 and diagonal grooves 213 in the rack 82. The part 216 is engaged by an adjusting-screw 218. The stop may be set by means of the scale 198. To permit of return of the rack 82, the faces of the stop and the pickup are bevelled, and the base 190, which carries the pick-up, is arranged to move laterally. (9) For sectional - line justification, two or more stops 196 are arranged on the rack, and a special lever is provided for moving laterally the base 190 to permit the passage of the stops. (10) The following devices are provided for resetting the parts to initial position: The running shaft 1 is geared to a shaft 244, Fig. 9, provided with a disk 245 adapted to be put in gear through a disk 252 with a disk 246 on the units-wheel. The disk 252 is suspended from a l