Tape dispenser

  • US 4,917,327 A
  • Filed: 09/07/1988
  • Issued: 04/17/1990
  • Est. Priority Date: 09/07/1988
  • Status: Expired due to Term
First Claim
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1. In an apparatus for dispensing elongated material from a roll, a system for regulating the tension in the material, comprising:

  • guide means for defining the path the elongated material is to follow, said guide means including at least one guide member movable in response to increased tension in the material to shorten the path thereof and movable in response to decreased tension in the material to lengthen the path thereof and movable in response to decreased tension in the material to lengthen the path thereof;

    active brake means for applying a braking force to the roll;

    a pivoted lever coupling the movable guide member to the active brake means;

    said pivoted lever and active brake means cooperating to reduce the braking force when the movable guide member moves to shorten the aforesaid path length and to increase the braking force when the movable guide member moves to lengthen the aforesaid path length;

    a second roll, the first and second rolls being mounted on first and second spindles, respectively; and

    mechanical, non-adhesive linkage means for linking the elongated material on the first roll to the elongated material on the second roll so that when the first roll is depleted of material, the second roll can immediately begin supplying material in its stead.

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