Abstract The invention is a simple and inexpensive means for splicing together webs of paper, particularly for a newspaper printing press where it is desirable to be able to change reels of paper without stopping the press. The splicing means comprises a pair of rollers mounted on a common carrier which is trunnion mounted for rotation about an axis disposed between the rollers. The splicing means can be moved from a position where two webs to be joined pass between rollers without contacting one another, to a transposed position in which the webs are brought together and the resultant combined web is constrained to follow a sinuous path about the rollers. The end of the new web is pasted in any convenient manner. The mechanism for rotating the carrier may be a rack and pinion device actuated by a double-acting pneumatic ram.
Apparatus for splicing a moving web comprising, a pair of parallel web guides which are spaced apart to define between them a single path through which the moving web can pass, a common carrier on which said pair of web guides are mounted, said carrier having a pivot axis spaced laterally between and parallel with said pair of web guides, said carrier being pivotable about said axis to cause orbital movement of the web guides, means adjacent said carrier and spaced from the web guides for releasably holding a second web under tension and adjacent one web guide of the pair of web guides, which second web is stationary and a portion of which is provided with an adhesive coating whereby it can be secured to said moving web, and means connected to pivot said carrier to move said web guides from positions in which the moving web and the second web are mutually remote to positions in which the webs are brought into surfaceto-surface contact with one another and the resultant combined web is constrained to follow a sinuous path about said pair of web guides to ensure intimate contact between the two webs, whereupon the second web is released by the tensioning means, the means for releasably holding the second web under tension being disposed such that the stationary web can be held against either web guide, the arrangement being such that pivoting of the carrier in one direction will effect splicing of the webs when the stationary web is held against one of the web guides and pivoting of the carrier in the other direction will cause splicing of the webs when the stationary web is held against the other of the web guides.
Claim 2
Dependent Claim
287 words
Apparatus for splicing a moving web comprising, a pair of parallel web guides which are spaced apart to define between them a single path through which the moving web can pass, a common carrier on which said pair of web guides are mounted, said carrier having a pivot axis spaced laterally between and parallel with said pair of web guides, said carrier being pivotable about said axis to cause orbital movement of the web guides, means adjacent said carrier and spaced from the web guides for releasably holding a second web under tension and adjacent one web guide of the pair of web guides, which second web is stationary and a portion of which is provided with an adhesive coating whereby it can be secured to said moving web, and means connected to pivot said carrier to move said web guides from positions in which the moving web and the second web are mutually remote to positions in which the webs are brought into surfaceto-surface contact with one another and the resultant combined web is constrained to follow a sinuous path about said pair of web guides to ensure intimate contact between the two webs, whereupon the second web is released by the tensioning means, the means for releasably holding the second web under tension being disposed such that the stationary web can be held against either web guide, the arrangement being such that pivoting of the carrier in one direction will effect splicing of the webs when the stationary web is held against one of the web guides and pivoting of the carrier in the other direction will cause splicing of the webs when the stationary web is held against the other of the web guides.
Claim 3
Dependent Claim
13 words
Web splicing apparatus according to claim 1, wherein the web guides comprise rollers.
Claim 4
Dependent Claim
26 words
Web splicing apparatus according to claim 1, wherein the means for pivoting the carrier comprises a rack and pinion device actuated by a double-acting pneumatic ram.