Controlled film advance apparatus

Details Controlled film advance apparatus Controlled film advance apparatus

1976-10-04

1977-09-20

Spruill, Robert Louis

Package making

Register control

226158, 53184R, 53389, 93 8R, 226 32, 226115, 226148, 226156, B65B 4118

Patent

active

040487822

ABSTRACT:
The apparatus and method of this invention pertains to a web film advance in which a film advancing roll is carried on a frame moved by a reciprocating pitman arm. This arm is adjustable as to its stroke or travel so that a corresponding travel of the frame is also selectively adjustable. The film advancing roll is carried by a shaft mounted in bearings and is prevented from turning in one direction by a one-way clutch apparatus. This clutch allows the roll to be rotated only when the frame and roll are moved rearwardly. During this film feeding advance by the roller a rotation of the roller is achieved by a roller chain and a sprocket or a timing belt and toothed pulley. This chain or belt may be moved a small amount in response to an electrical signal to bring the web of film or paper into registration in accordance with mark indicia. Bags or simply formed, filled and sealed packages may be made by and on this simplified yet highly reliable film advancing apparatus.

REFERENCES:
patent: 2749817 (1956-06-01), Piazze et al.
patent: 3762617 (1973-10-01), Matthis

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