Abstract: A treestand platform adjustment mechanism adjusts the angle of a treestand platform with respect to a vertical support. The treestand's vertical support extends between a seat and a platform, the platform extending generally perpendicularly from the support, the support generally aligned with a tree. The support comprises openings extending through a tree-facing side of the support. A captive bracket substantially surrounds the support. A fixing bolt extends through the captive bracket and is received by the openings to set the position of the platform with respect to the support.

Abstract: An improved portable fluid storage tank comprising an enclosure having a bottom wall upon which the tank rests, a front or forward end, a back or rear end, a pair of opposed, vertically extending side walls, a top wall, and at least one recessed channel formed in said top wall whereby a walkway is formed to allow an operator to safely maneuver on top of said tank. In a further embodiment, a system of portable storage tanks is described wherein the walkways of two or more said improved portable storage tanks are connected thereby creating a walkway network between said improved portable fluid storage tanks.

Abstract: A method for demolishing a building, where the building comprises a building base placed in proximity of a ground, or placed on the ground, and an opposite building top or temporary building top arranged away from the building base, as well as building floors. The equipment used in the method includes a platform adapted to be positioned against the top of the building, avoiding ground support devices which extend from the platform to the base of the building or the ground surrounding the building. The platform includes at least one working scaffold adapted to be arranged along the periphery of the building and to face at least one floor of said building. The working scaffold is supported, hung, on the platform so that it descends along the side wall of the building to border the works for demolishing the building.