Patent GB-190706952-A (GB)
Title: Improvements in or connected with Apparatus for Delivering Adhesive Strips of Fabric for use in Sealing Packages and for other purposes
Inventor: FROST CLARENCE BARTLETT
Filed: 1907-03-22
Granted: 1907-11-28
Abstract: 6952. Frost, C. B. March 22. Bobbin, spool, &c. holders and cases.-In apparatus for delivering an adhesive strip of paper &c. for wrapping round packages to seal them or for other purposes, the strip, which may have been previously gummed and dried, is drawn over a damping or gumming roller, the required length being severed by pulling the strip against a cutter. When the free end of the strip 15, Fig. 1, is drawn in the direction of the arrow, the part of the strip drawn from a supply roll passes under a guide 16, through curved pieces 17, 18, Figs. 1 and 5, over a moistening or gumming roller 12, and under a guide 19, from which hangs a pivoted wire frame 20, Figs. 1 and 3, having shoulders 27 on which the edges of the strip rest. The pieces 17, 18 give the strip an arched shape, thus rendering it sufficiently stiff to assume a position clear of the roller 12 when the end of the strip is released. This motion is assisted by the frame 20, which swings back slightly when the strip is released. The underside of the free end of the strip may be pressed by hand against the roller 12 to moisten or gum it. The sloping parts 28 guide the end of the strip back to its original position when it is released. The gum tank may be replenished from the reservoir 13, which acts on the bird-fountain principle. The strip is severed by pulling it against a pivoted blade 31 having a V-shaped cutting-edge so arranged that it first makes contact with the centre of the strip. When the strip is raised to cut it, the cutting-edge recedes until the part 32 bears against the strip. The pieces 17, 18, Fig. 5, may be adjusted to put any desired tension on the paper. The curved edge of the frame 10 serves as a guide for the packet operated upon. Figs. 6 and 7 show a modification adapted for use with stiff paper strips. The pieces 17, 18, Fig. 5, are replaced by a flat spring 17<1> pressing against a plate 18<1>, and the side pieces of the wire frame 20<1> hang loosely. from the guide 19 so that they may swing apart. In the arrangement shown in Figs. 8 and 9, the strip passes round guides 17<11>, 18<11> so arranged that they tend to hold the strip clear of the wheel 12. A wire spring 39 rests on the freely-mounted wheel 12 and causes it to turn irregularly, thereby facilitating the moistening operation. The wire frame 20, Fig. 1, is replaced by a pivoted serrated bar 27<1> on which the forward end of the strip rests. A stop 37 limits the motion of the bar 27'. A small roller 42, mounted so that it may swing over the surface of the wheel 12, is so arranged that it may be used for moistening the dry projecting end of the strip. The pivoted cutting-blade 31<1> is so shaped that the end 32<1> is the part which first makes contact with the strip. The package 40 to be treated is held in a notch in a pivoted guide 41, which is then pushed upwards until the required length of the strip has been drawn off and severed by the blade 31<1>. The blade 31<1> may be made to act positively by levers connecting it to the piece 41. In a further modification, the support for the free end of the strip consists of a roller 19<a>, Fig. 10, which has sharp corrugations and is arranged close to the surface of the wheel 12. The shape of the parts 17, 18, Figs. 1 and 5, may be modified, and they may bend the strip in the form of an inverted arch.