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US 5,511,473 AGranted
Width adjusting device for a paper web
AssigneeKabushikigaisha Tokyo Kikai Seisakusho
InventorsTakashi Ohmi, Yasuo Shibuya
Life of this patent
Estimating the term…
Abstract
An improved width adjusting device for a paper web which can assure the printing apparatus is free from trouble caused by stored paper dust and gathered ink, includes at least one pressure force applying device with respect to at least one side surface of the paper web travelling through at least one of the printing sections, and at least one drive control device for making the pressure force applying device move in a different direction and/or at a different speed from that of the travelling paper web.
Claims9
A printing apparatus comprising:
- a plurality of vertically arranged printing sections for printing a paper web;
- and
- a web width adjusting device comprising
- at least one means for applying a pressure force with respect to at least one side surface of said paper web in order to decrease the width of the web;
- and
- at least one drive control means for making said pressure force applying means move in a different direction and at a different speed from a corresponding direction and speed at which the paper web is travelling for making said paper web clean parts of said pressure force applying means by preventing an accumulation of paper dust;
- wherein said control means includes means for varying the moving speed of said pressure force applying means.
4 more elements
Dependencies are inferred from the claim text.