| 摘要 |
A stand-alone lug of non-isotropic polymeric or cellulosic material for installation in a recess in a core member of paperboard material for a roll of paper or other sheet material. The lug has a width in the range of from about 0.25 to about 4 inches, a length in the range of from about 0.5 to about 4 inches, and a thickness in the range of from about 0.25 to about 1 inch. The lug also having at least one radially inner surface, the total circumferential width of the inner surface or surfaces being at least about 0.2 inches. The lug may have a recess extending from one end for receiving a key on a stub-chuck. Where the lug is to be used with splined stub-chucks, the lug may have no recess.
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