| 摘要 |
An improvement for the assembly of ground rods, comprising a fitting having two threaded portions, the first as a guide portion being adapted to receive an unthreaded ground rod and a threaded gripping portion adapted to grip the end of a rod through deformation of the threads when the rod is forceably inserted in the fitting. Conjointly usable therewith is a similarly threaded terminal fitting adapted to receive an electrical ground line and retain the same permanently in a contact position when the fitting is forceably driven on the rod.
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