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Belt adjuster box style

  • US 4,148,224 A
  • Filed: 07/27/1977
  • Issued: 04/10/1979
  • Est. Priority Date: 07/27/1977
  • Status: Expired due to Term
First Claim
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1. In a box style belt adjusteran elongated box having a top, a bottom and end walls and having a passage therethrough to accommodate a belt,a pivot shaft held in the end walls of the boxa cam on the pivot shaft within the box,risers on the cam being spaced to a distance to provide between said risers and the respective top and bottom of the box clearances slightly less than the thickness of the belt around said cam whereby when the cam is turned so as to force the risers toward the respective top and bottom of said box said risers squeeze and hold said belt in the box against movement, and when said cam is turned to move said risers away from said top and bottom the belt is released for adjustment,said cam having an axial hole therethrough upon said shaft and said hole being substantially oval thereby to permit self-adjustment of the cam to varying thicknesses of the belt.

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