Static structures (e.g. – buildings) – Cover with exterior holddown
Patent
1976-04-12
1977-04-05
Perham, Alfred C.
Static structures (e.g., buildings)
Cover with exterior holddown
52 4, 52143, E04B 700
Patent
active
040153762
ABSTRACT:
A mobile home having a membrane-type roof is stabilized by placement of a plurality of tensioned straps extending transversely across the membrane roof and in contact with the roof over a substantial portion of the length of said straps. The straps are anchored to a structural member at the edge of the roof, so that the straps constitute a permanent part of the mobile home. Hence, during transportation of the home along a highway, as well as during wind storms, etc., any upward flexing of the membrane roof is prevented by the tensioned straps which lie adjacent said roof. A suitable strap may be a 1200 pound test braided nylon rope having a diameter of about 1/4 inch. Springs for achieving tension in the rope may be helical springs about 16 inches long and having a diameter of about 1/2 inch, with said springs being made from steel wire having a diameter of about 1/32 inch. The springs should be capable of establishing a tension of about 30 pounds in the straps which lie adjacent the roof, even when the wind load is zero.
REFERENCES:
patent: 459664 (1891-09-01), Wands
patent: 1244763 (1917-10-01), Neumayer
patent: 2133088 (1938-10-01), Faber
patent: 3088558 (1963-05-01), Dickinson
patent: 3309822 (1967-03-01), Dunkin
patent: 3336704 (1967-08-01), Clay
patent: 3769763 (1973-11-01), Kwake
patent: 3927494 (1975-12-01), Struben
McHugh Charles W.
Perham Alfred C.
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