Patent GB-190618450-A (GB)
Title: Improvements relating to Printing Presses.
Inventor: SQUIERS ARNON LYON
Filed: 1906-08-17
Granted: 1907-11-16
Abstract: 18,450. Squiers, A. L. Aug. 17. Feeding-apparatus for webs; cutting-apparatus; stopping and starting &c. arrangements and brakes.-Means are provided in printing-presses for introducing new rolls of web, pasting the new web to the old web, cutting the old web, and removing the spent spindles, all performed automatically without stopping the press. Figs. 2 and 3 show one form of the invention in which pairs of screws 7, 21 are connectedly driven by gears 28, 29 from an inking - roll 31 of the press through the medium of a clutch and gears 35, 36. The clutch comprises members 37,38, the latter having pin driving - connexion with a disk 41 on the shaft 34 and being movable by means of a hand-lever 39. Movable on the screws 7 are nuts 10 carrying verticallysliding plungers 12, the movements of which are controlled by cam-grooves 14. Movable on the screws 21 are nuts 22 carrying outwardly spring-pressed brackets 24 having inclined fronts 26. The roll of paper feeding the press rests in bearings 3, the brackets 21 normally resting beneath the spindle of the roll, but, when this roll is almost exhausted, a new roll is placed upon the frame 2 with its pasted end secured over the end of a pasting-blade 58 'having spurs 61. The screws being set in motion by means of the clutch, the pasting-blade swings upwards on its pivots and attaches the new web to the old web, the end of which is then cut off by suitable means. The spindle of the new web traverses the frame 2 until it settles in the bearings 3 while the brackets 24 carry upwards the spindle of the old roll. The screws are then rotated by keys to return the'nuts to their original position, 'the brackets 24 forcing their way beneath the spindle of the web. When the clutch is operated, an arm 57 on a rod 56 is caused to engage a worm 53 and the blade 58 is thus swung upwards. The clutch is thrown out of operation at the proper moment by means of an arm 50 on the lever 39, and a throw-out member 46 which extends into the path of the nut 10. Fig. 8 shows a rrodification in which one end of a press is shown, the other end being similarly provided with rolls. In this case, the screws C, D are driven from a power shaft b through clutches S operated by levers L. The ' nuts E, which carry pivoted arms e, push forward the spindles of the new rolls. The nuts F are provided with sliding pieces f which can be pushed back. ward in order that they may pass beneath the spindles of the old roll s in the bearings a'. The clutches are tripped by the nuts F engaging the extensions of rods K connected with the levers L. No pasting and cutting mechanism is shown. Fig. 13 shows a further modification in which one of the nuts 7 is provided with brake mechanism for regulating the tension upon the web, which comprises shoes carried by links the pressure of which is adjustable by means of an adjustable connecting link 7<g>, 7<k>. The shoes engage a pulley on the spindle S and also serve to prevent endlong movement of the spindle. Another pulley on the spindle S<1> of the old roll is likewise engaged by similar brake mechanism carried on the frame A. The pasted end of the new web P is laid upon travelling tapes 23 driven from a cylinder C of the press and running with tapes 22, and is thus attached to the old web P' which is then cut off by a serrated blade 21<b> operated by one of the pulleys on the spindle S, which depresses during its traverse along the frame A a rod linked with a rod 21<c>. The clutch mechanism is similar to that described, but it is not automatically tripped. According to the Provisional Specification, the reversal of the screws for the retraction of the nuts may be effected automatically by the press mechanism.