Web tensioning system

Winding – tensioning – or guiding – Reeling device – Fishing rod reel

Patent

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Details

318 7, G03B 104, G11B 1532

Patent

active

043634575

ABSTRACT:
A system is described for holding the tension of a web substantially constant as the web is transported from a supply spool to a take-up spool. The rotation of each spool is controlled by a motor. A tension control circuit senses the currents in both motors and alters motor current so as to hold the sum of the motor currents at a substantially constant value. In this manner, the sum of the torques generated by the motors and their spools is held at a substantially constant value to thereby maintain web tension substantially constant as the radii of the spools change during web movement.

REFERENCES:
patent: 3606201 (1971-09-01), Petusky
patent: 3704401 (1972-11-01), Miller
patent: 3715641 (1973-02-01), Mattes

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