Method and apparatus for splicing webs of photographic film or paper

Abstract

Abstract A method for splicing together first and second webs in end-to-end relationship comprising the steps of (a) providing at least one hold through each web; (b) juxtaposing said webs end-to-end; (c) positioning two splicing patches comprising thermoplastic material on opposite surfaces of said webs and overlying end portions of both webs and said holes therein; (d) passing through both of said patches and each of said holes a hot pin to soften and merge together in each hole softened plastic from said patches. A plurality of joinders can be preformed in this way simultaneously. A joinder can also be provided in the space between the ends of the webs. The initial holes in the webs can be pierced by the hot pin prior to splicing. the apparatus for performing the method includes a first plate having a first hole therein adapted to support the webs and patches, a second plate having a second hole therein aligned with the first hole, a pin movable axially through the two holes, and means for heating the pin. The second plate has an annular boss on the periphery of its hole to force the patch into the second hold slightly before penetration by the heated pin. The two spliced webs as an article of manufacture are also within the invention.

Inventors

• 👤 L Witherow

Bibliographic Details