Static structures (e.g. – buildings) – Machine or implement
Patent
1974-04-01
1976-02-03
Murtagh, John E.
Static structures (e.g., buildings)
Machine or implement
174 45R, E04C 330
Patent
active
039356892
ABSTRACT:
A new transmission line support structure including a pair of poles and a superstructure supported from below on the tops of the poles and comprising one or several crossarm units each of which includes a crossarm and may include a plurality of upwardly extending pole extensions. Each crossarm unit is secured to the tops of a pair of poles or pole extensions by means which act in directions parallel to the axes of the poles and prevent transverse motion therebetween, and which may include elastomeric pad means.
REFERENCES:
patent: 923557 (1909-06-01), Milliken
patent: 1567301 (1925-12-01), Ross
patent: 2212990 (1940-08-01), Maler
patent: 2627176 (1953-02-01), Levy
patent: 2920476 (1960-01-01), Finfrock
Bladholm Thomas A.
McCalla William T.
Contran Corporation
Murtagh John E.
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