Apparatus and method for aligning webs

Details Apparatus and method for aligning webs Apparatus and method for aligning webs

1995-12-20

1998-12-15

Engel, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156157, 156351, 156361, 156363, 156502, 156504, 226 20, 2425541, 2425551, B65H 1900

Patent

active

058491236

ABSTRACT:
Apparatus and method for aligning webs, such as photographic film or paper, where the trailing edge of an expiring web is spliced to the lead edge of a fresh web. A supporting means having the fresh web thereon in a fixed position is caused to move by sensor means transmitting a signal corresponding to precise positioning of the expiring relative to the fixed position of the fresh web. According to the invention, a programmable controller is used to analyze the signals received from the sensors and directs the movements of the supporting means where the webs are ultimately moved into abutting or overlapping contact and then spliced.

REFERENCES:
patent: 3786974 (1974-01-01), Kron
patent: 3834971 (1974-09-01), Johnson
patent: 4003511 (1977-01-01), Schwestka
patent: 4878986 (1989-11-01), Nishikawa
patent: 4888717 (1989-12-01), Ditto et al.
patent: 4892611 (1990-01-01), Wheeler et al.
patent: 5098507 (1992-03-01), Mao

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