Method of making book style albums

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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Details

156250, 156267, 206557, 206562, 206563, 206564, 206565, B29C 304

Patent

active

046327177

ABSTRACT:
A plurality of different types of book style cassette holders or albums are selectively progressively produced by an in-line operation having stations which can be by-passed and selectively actuated to omit or add steps to produce the different types. The initial steps in the method unwind a relatively rigid or stiff thermoplastic sheet from a roll, successively thermoform the sheet into blanks having a plurality of pairs of adjoining hollow wall album trays in side-by-side relation connected by a flexible spine and surrounded by marginal portions. The blanks are fed successively, hollow face upwardly, through successive stations which apply adhesive and cardboard slabs over the bottoms of the trays. Subsequent stations either deposit individual printed cover sheets onto the blanks, or a continuous cover sheet fed from a roll. Succeeding stations selectively apply individual printed sheets over the continuous cover sheet and a transparent film over the printed sheets. The printed sheet station can be by-passed and a transparent film can be applied over all or part of the cover sheet. Subsequent stations bond the superimposed sheets together, sever the margin strips around and between the trays, and strip the margins from the albums. Selective operation and by-passing of stations provides many combinations for producing different types of holders or albums.

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patent: 4555290 (1985-11-01), Graetz et al.

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