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Bursting apparatus

  • US 3,888,399 A
  • Filed: 10/31/1972
  • Issued: 06/10/1975
  • Est. Priority Date: 10/31/1972
  • Status: Expired due to Term
First Claim
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1. A bursting apparatus for separating a continuous series of forms having perforation lines therebetween into individual forms:

  • comprising A. feed means for intermittently advancing said continuous series of forms;

    B. clamping means having a clamping condition for holding said continuous series of forms immobile and a release condition for allowing feed movement of said continuous series of forms;

    C. actuating means for said clamping means;

    D. burster roller means adapted when operated to apply a feed tension force to the leading form in said series of forms;

    E. drive means for rotating said burster roller means; and

    F. control means for controlling the operation of said clamp actuating means and said burster roller drive means to cause said burster roller means to apply a tension feed force to the leading form in said series while said clamping means is clamping the next form following said lead form in said series whereby said lead form may be separated from the remaining forms in said series;

    G. said actuating means for said clamping means including a movable bar member and means for moving said bar between clamping and release positions, said bar member having an operative longitudinal edge that serves to operate said clamping means for any form length adjusted position of said clamping means along the length of said bar member.

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