Document Type and Number:
Japanese Patent JPS4949067
Kind Code:
A
Abstract:
Controls for winding a strip such as magnetic recording tape at a constant linear speed on to a take-up reel from a supply reel. The controls are responsive to the instantaneous angular speeds of both reels, maintaining at a substantially constant value the ratio of the product of the squares of the speeds to the sum of the squares, by varying the speed of the take-up reel while sufficiently restraining the supply reel to maintain tension on the strip.
Application Number:
JP5638173A
Publication Date:
May 13, 1974
Filing Date:
May 22, 1973
Export Citation:
International Classes:
G11B15/43; B65H23/18; G11B15/46; H02P5/00; (IPC1-7): H02P5/46