Fences – Driftage control
Patent
1987-04-07
1988-04-26
Kundrat, Andrew V.
Fences
Driftage control
256 1, 256 16, E04H 1700
Patent
active
047399708
ABSTRACT:
A rotary anti-scaling device comprises a pair of substantially identical halves connected together at a relative displacement of 180.degree. about a central transverse axis through the halves to form a unitary spike. Each half includes a central body portion with a central, transversely-extending bore therethrough permitting rotation of the unitary spike on an associated mounting bar, one or more projections extending from opposed ends of each body portion and at least one of the body portions having means formed thereon for co-operating with an adjacent spike to locate said spike in a position displaced angularly about its transverse axis relative thereto.
REFERENCES:
patent: 511700 (1893-12-01), Jacobs
patent: 1543790 (1925-06-01), Pehrson
patent: 4270736 (1981-06-01), Burch
patent: 4348012 (1982-09-01), McLoughlin
Hercules Security Fabrications Limited
Kundrat Andrew V.
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