Device for edging the points of ball pens in particular those made of hard material
AssigneeAlbe S.A.
InventorUgo Buzzi
Life of this patent
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Abstract
A device for edging points of ball point pens wherein three equiangularly spaced rollers run on a conical surface. The point to be worked is moved into a working zone defined by regions of the three rollers in a direction along the axis of the conical surface in a direction from the apex of the conical surface towards the wider end of the conical surface. The rollers either react against a rotatable disc or a fixed shaft, in which latter case the conical surface is rotatable.
Claims7
A device for edging the point of a ball point pen comprising three working rollers arranged to run without slip on a conical running surface and arranged at 120.degree. angular spacing so that regions of the rollers cooperate to define a working zone into which the point is moved to be engaged by said regions, the axes of the three rollers converging at the apex of said conical surface, a stationary shaft having a tapered end, resiliently yieldable means urging said tapered end towards the rollers, and ball or roller bearing means rotatably supporting said conical surface.
Dependencies are inferred from the claim text.