A procedure and its corresponding device for the confection in a work phase of envelopes for letters and similar work pieces. (Machine-translation by Google Translate, not legally binding)

摘要

A procedure and its corresponding device for the preparation in a working phase of envelopes for letters, bags and similar work pieces, which are closed by dry gumming and in which the gumming strips to be applied before bending and gluing, they are distributed on the sheet with form or sheet on both sides, extending along opposite edges, characterized by the procedure by which the sheets with form or sheets, staggered as tiles, in the manner known per se, to receive the application of the glue, are passed, before folding and gluing, through two successive glue application devices, each of which acts on one of the faces of the work piece, so that, as a consequence of always remaining Like the transport direction of the staggered work pieces, the edges to be glued are passed through one of the glue application devices facing forward, and by the other glue application device, looking back. (Machine-translation by Google Translate, not legally binding)