Abstract: A prefabricated self-supporting building structure and method of construction is described. The building structure comprises a plurality of substantially triangular shaped panels which are interconnected to one another by a hinge connector and along certain edges thereof whereby to form collapsible roof segments. There are four roof segments in the building structure. The triangular shaped panels are interconnected to form two pre-assembled collapsible panel sections each incorporating a pre-assembled roof segment and panel sections for adjacent roof segments. These two pre-assembled panel sections are erected by simple cable attachments which may be secured to a vehicle and these are interconnected back-to-back. The roof segments are also secured by brackets at their junction points of the panels for securing the roof segments in elevated position on supports.

Abstract: A horizontal bar exercising device for use in a room having a floor and a ceiling, the device comprising first and second support posts designed to extend vertically between the floor and ceiling and a horizontal bar having first and second ends interconnected with the first and second posts respectively by sleeve members, the sleeve being slidable along the first and second posts by means of friction reducing means interposed therebetween to minimize binding between the sleeves and posts. The device preferably includes extension arms located at the upper distal end, each of the extension arms having a pressure rod to indicate a preset pressure to be applied to the ceiling.