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Method of making a buffing wheel

  • US 3,212,819 A
  • Filed: 08/23/1962
  • Issued: 10/19/1965
  • Est. Priority Date: 05/18/1960
  • Status: Expired due to Term
First Claim
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1. IN THE METHOD OF MAKING A BUFFING WHEEL SECTION OF THE CHARACTER DESCRIBED THE STEPS OMPRISING WINDING A STRIP OF BUFFING MATERIAL ABOUT SPACED CYLINDRICAL ELEMENTS TO PROVIDE A MULTI-PLY CYLINDRICAL STRUCTURE CONTRACTING THE CYLINDRICAL STRUCTURE ABOUT A MEDIAL LINE AND INTO THE SPACE BETWEEN THE ELEMENTS TO PROVIDE A FLAT RING STRUCTURE U-SHAPED IN CROSS SECTION SUPPORTING A RETAINING DISK HAVING A CIRCULAR ROW OF LATERALLY EXTENDING PRONGS ADJACENT ITS OUTER PERIPHERY IN A PRESS AND IN CONCENTIC RELATION TO THE RING WITH THE PRONGS DIRECTED TOWARD THE MARGINAL PORTION ADJACENT THE INNER PERIPHERY OF THE RING THEN COMPRESSING THE DISK AND THE RING TOGETHER WITH SUBSTANTIAL PRESSURE TO CAUSE THE PRONGS TO PENETRATE THE RING TO A DEPTH OF OVER ONE-HALF OF THE ALYERS OF THE FLAT RING OF U-SHAPED CROSS SECTION WITHOUT PASSING THROUGH THE FULL THICKNESS OF THE RING AND TO PROVIDE A PARTIALLY ASSEMBLED BUFFING WHEEL SECTION INCLUDING THE UNPENETRATED PORTION OF THE RING CAPABLE OF MAINTAINING ITS ASSEMBLED RELATION DURING SUBSEQUENT HANDLING WITHOUT CLINCHING SAID PRONGS, THEN REMOVING THE PARTIALLY ASSEMBLED SECTION FROM THE PRES AND PERMANENTLY SECURING THE RING TO THE DISK.

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