Back to results
US 4,228,316 AGranted
Hollow pole with internal wire gripping and securing means
AssigneeThe Post Office
InventorJohn H. T. MacFarlane
Life of this patent
Estimating the term…
Abstract
A device for securing and anchoring a telephone wire comprises a narrow helix with widely spaced coils with an open bight at one end. The invention further comprises a telephone pole with an internal fixing element such as a ring with the device securing a wire looped onto it.
Claims7
In combination, a hollow pole and means located internally thereof for securing and retaining an electric wire, said means comprising;
- an annular anchor ring secured in concentric spaced relation to the inner wall surface of said hollow pole;
- a unitary anchoring member consisting of an elongate helical section terminating in a looped clasp having a hooked end;
- the diameter of said helical section being sized to receive and grip an electrical wire, and said hooked end engaging said anchoring ring for retaining a wire gripped by said helical section in said hollow pole.
Dependencies are inferred from the claim text.