E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
135/2, 214/66
E04B 1/345 (1980.01)
Patent
CA 1055356
ABSTRACT OF THE DISCLOSURE Method and apparatus for providing a controlled movable environment in accordance with the present invention, for protection of a work area in the environment from adverse external conditions, may take the form of a collapsible and movable building structure that may be moved about in its fully erected condition. The building may include at least one and preferably a plurality of platform devices which may take the form of trailers, self-powered vehicles, sleds or any other suitable motive device having means for engage- ment with the site on which the building structure is to rest. A lightweight building structure, which may take the form of a flexible inflatable or air supported building structure may be secured to the platform means and may cooperate with the platform means to provide a chamber for protection of the work area and any occupants or equipment for which protection might be desired. Means may be provided for varying the effective weight of the platform means and lightweight build- ing structure to stabilize or prepare the same for movement. The effective weight is increased for the purpose of stabiliz- ing the building structure to protect it against the damaging effect of winds, while the effective weight is reduced to a desired minimum in preparation for movement of the building structure. Motive means, such as external toeing mechanisms, powered support wheels or the like may be utilized for move- ment of the platform means and building structure when such movement is desired.
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