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PRODUCTION OF POINTED WORKPIECES

  • US 3,572,080 A
  • Filed: 10/03/1968
  • Issued: 03/23/1971
  • Est. Priority Date: 10/03/1968
  • Status: Expired due to Term
First Claim
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1. In apparatus for forming a point on the end of a long slender workpiece, the combination of means for clamping the workpiece in place at a fixed location, a crosshead reciprocable toward and away from an end of said workpiece, a die carried on said crosshead and adapted to be forced over the end of the workpiece to produce a point of reduced cross-sectional area when said crosshead is forced toward the workpiece, a member having a generally conical surface which engages an edge of the end surface of said workpiece as said die is forced thereover to prevent said end from bowing from the longitudinal axis of the workpiece, said member being reciprocable along said axis, and means for yieldingly urging said member toward said crosshead whereby the member will move forwardly with said crosshead as the die is forced over said workpiece until the end of the workpiece engages said generally conical surface, whereupon further forward movement of said member with the crosshead is terminated and the pointed end of the workpiece is prevented from bowing by engagement with said generally conical surface.

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