Patent GB-644823-A (GB)
Title: Improvements in wrapper feeding and registering mechanism
Inventor: ROSE ALFRED GERMAN
IPC: B41F13/02
Filed: 1948-02-14
Abstract: 644,823. Feeding webs. ROSE BROS. (GAINSBOROUGH), Ltd. Feb. 14, 1948, No. 4391. [Class 100 (i)] In wrapper feeding and registering mechanism, wherein wrappers containing printed matter, designs or the like are cut in succession from a web in correct relationship with the printed matter, designs or the like with the aid of a registering device consisting of one or more movable pegs adapted to engage perforations or slits formed in the web at intervals corresponding to the spacing of the printed matter, designs or the like, and to move the web into a predetermined registration position before operation of the cutting device, and in which the web is drawn along suitable supports from a roll by a pair of feed rollers which allow the web to slip during the registering operation of the movable pegs, at least the movable peg or pegs is or are carried by a supporting member mounted for pivotal movement about an axis parallel to the path of travel of the web so as to be capable of swinging clear of said path. The web 13 is fed to the left over a plate 12 by feed-rollers 14, 16 and 17, 18, motion being imparted to roller 16 by gearing from drive-shaft 26, and thence by chain 29 to roller 18, and by gearing from the lower to the upper rollers, and a loop 19 being tensioned by a gravity roller 21. To a shaft 35 mounted in bearings 36 on the machine frame 11 is attached a pivoted frame 32 carrying a handle 37, a forked arm 27 supporting the upper roller 14, and any desired coding or like device. In operation, slightly more web is fed than is required for a wrapper, whereafter a camactuated rod 68 strikes an extension 69 of the arm 27 and raises the roller 14 clear of the web against a spring 34 to stop the feed. An actuating member 49 is slid to the right along the shaft 35 by means of a cam 66, levers 64, 62 and stud 61 bearing in a groove in the member 49. On an upward extension of the member 49 is carried a stud 51 carrying a pair of arms 53 supporting pegs 54, and extensions 56 of the arms 53 carry followers 57 riding on stationary cams 58 and urged into engagement therewith by leaf-springs 59, whereby as the member 49 slides, the arms 53 are lowered and the pegs contact the web until they reach perforations or slits therein, and pass through them and through slots in the plate 12, thereafter moving the web backward into pre-determined registered position, when a wrapper is cut off by a device 72. The roller is then lowered to resume the feed, and the member 49 slid to the left, the pegs being lifted out of the perforations. By means of the handle 37, the frame 32 can be swung upward, and since a member 52 on the frame engages a groove in the extension of the member 49, this is also pivoted, and the roller 14, pegs 54 and coding or like device are moved clear of the web path to permit threading through the machine. The frame 32 is locked in its operative position by a catch 41 on the frame 11 engaging a pivoted latch 38 on the frame 32, which latch has a pin 39 engaging the handle, which is slid to the left against a spring 42 to release the frame 32. The frame 32 is locked in its upper position by a latch 46 on the frame 11 engaging a pivoted latch 43 on the frame 32, which latch also engages the handle 37 and is released in the same way. On raising the frame 32, a switch is operated to stop the machine.