Greenhouse construction

Static structures (e.g. – buildings) – Barrier or major section mounted for in situ repositioning;... – Roof movable as entity relative to its substructure

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Details

47 17, 52 64, 52173R, E04B 1343, E04B 716

Patent

active

042838894

ABSTRACT:
A greenhouse structure with flooring means and side and end wall means defining a plant growing area has a roof structure means comprising a ridge above said growing area and rafter means extending from said ridge downwardly and outwardly past said side wall means to terminal end portions at which anchor means are provided securing said rafter ends to said flooring means. It also has a slidable roof means mounted on said rafter means for movement to different positions thereon including a first position in which it extends from said ridge to said side wall means and preferably past the same for forming an overhang or eave therebeyond, and a second position in which it lies between said side wall means and said anchor means. The slidable roof means in the preferred embodiment is water shedding and heat insulating, and may be formed of opaque fiber glass, but preferably is formed of aluminum sheet embossed for strength and having a heat insulating layer on its under side. Operating means is coupled to the slidable roof means for sliding the same between said first and second positions; anti-friction means is preferably interposed between said sliding roof means and said supporting rafter means; and retaining means is provided to secure the sliding roof means against displacement from said rafter means. A light transmitting ceiling means is provided, extended above said growing area and in spaced relation to said insulating layer in the first position of said sliding roof means for providing a dead air space therebetween.

REFERENCES:
patent: 811951 (1906-02-01), Pierson
patent: 2019831 (1935-11-01), Ricardo
patent: 2094801 (1937-10-01), Mass
patent: 2229908 (1941-01-01), Wenneborg
patent: 3299589 (1967-01-01), Hay
patent: 3566555 (1973-03-01), Schultz et al.
patent: 4110941 (1978-09-01), Scott

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