Abstract: A system for constructing a tank is made up of a plurality of generally rectangular prism sections, which are hinged together on the back side to form a platform, having an end section hinged to a frame section, a cantilever frame extending from the end section, a counterbalance frame attached to said cantilever and extending parallel to the platform and opposed to the end section, with the end section and said counterbalance frame being separated by a pair of saddle wheels mounted to the cantilever frame. At least one additional saddle wheel is mounted on a frame section for cooperative operation with saddle wheels on the cantilever to support the system on the tank wall and to move the platform within the tank wall as it is constructed. The hinge connections between the sections allow the platform to be adjusted to the arc of the internal wall of the tank under construction.

Abstract: A system for constructing a tank is made up of a plurality of generally rectangular prism sections, which are hinged together on the back side to form a platform, having an end section hinged to a frame section, a cantilever frame extending from the end section, a counterbalance frame attached to said cantilever and extending parallel to the platform and opposed to the end section, with the end section and said counterbalance frame being separated by a pair of saddle wheels mounted to the cantilever frame. At least one additional saddle wheel is mounted on a frame section for cooperative operation with saddle wheels on the cantilever to support the system on the tank wall and to move the platform within the tank wall as it is constructed. The hinge connections between the sections allow the platform to be adjusted to the arc of the internal wall of the tank under construction.

Abstract: A system for constructing a tank is made up of a plurality of generally rectangular prism sections, which are hinged together on the back side to form a platform, having an end section hinged to a frame section, a cantilever frame extending from the end section, a counterbalance frame attached to the cantilever and extending parallel to the platform and opposed to the end section, with the end section and the counterbalance frame being separated by a pair of saddle wheels mounted to the cantilever frame. At least one additional saddle wheel is mounted on a frame section for cooperative operation with saddle wheels on the cantilever to support the system on the tank wall and to move the platform within the tank wall as it is constructed. The hinge connections between the sections allow the platform to be adjusted to the arc of the internal wall of the tank under construction.

Abstract: A system for constructing a tank which is made up of a plurality of generally rectangular prism sections, which are hinged together on the back side to form a platform, having an end section hinged to a frame section, a cantilever frame extending from the end section, a counterbalance frame attached to said cantilever and extending parallel to the platform and opposed to the end section, with the end section and said counterbalance frame being separated by a pair of saddle wheels mounted to the cantilever frame. At least one additional saddle wheel is mounted on a frame section for cooperative operation with saddle wheels on the cantilever to support the system on the tank wall and to move the platform within the tank wall as it is constructed. The hinge connections between the sections allow the platform to be adjusted to the arc of the internal wall of the tank under construction.

Abstract: A composite scaffolding plank made from a plurality of wooden boards positioned in side to side parallel abutment. A plurality of spaced pins extend transversely through the wooden boards. A cam means on the pins pulls and holds the boards together. In one preferred embodiment where the plurality of wooden boards are from a single board that is ripcut, the strength of the wooden plank is increased by cutting the plank longitudinally, positioning the resulting sections in side to side parallel abutment with the wood grains alternating directions, and to subsequently embedding a plurality of spaced pins in the sections.

Abstract: A composite scaffolding plank made from a plurality of wooden boards positioned in side to side parallel abutment. A plurality of spaced pins extend transversely through the wooden boards. A cam means on the pins pulls and holds the boards together. In addition, my invention is a method of forming wide wooden planks from two or more narrow wooden boards by positioning the boards in side to side parallel abutment and embedding a plurality of spaced pins transversely through the boards. Further, a method of increasing the strength of a wooden plank is to cut the plank longitudinally, position the resulting sections in side to side parallel abutment with the wood grains alternating directions, and to subsequently embed a plurality of spaced pins in the sections.

Abstract: A composite scaffolding plank made from a plurality of wooden boards positioned in side to side parallel abutment. A plurality of spaced pins extend transversely through the wooden boards. A cam means on the pins pulls and holds the boards together. In one preferred embodiment where the plurality of wooden boards are from a single board that is ripcut, the strength of the wooden plank is increased by cutting the plank longitudinally, positioning the resulting sections in side to side parallel abutment with the wood grains alternating directions, and to subsequently embedding a plurality of spaced pins in the sections.

Abstract: A composite scaffolding plank made from a plurality of wooden boards positioned in side to side parallel abutment. At least one of such boards is a whole natural wooden board, and at least one of such boards is a laminated wooden board. A plurality of spaced pins extend transversely through the wooden boards. A cam means on the pins pulls and holds the boards together. In addition, my invention is a method of forming wide wooden planks from two or more narrow wooden boards (as described) by positioning the boards in side to side parallel abutment and embedding a plurality of spaced pins transversely through the boards. Further, a method of increasing the strength of a wooden plank is to cut the plank longitudinally into sections, add at least one laminated wooden board, position the sections in side to side parallel abutment, and subsequently embed a plurality of spaced pins in the sections.

Abstract: A composite scaffolding plank made from a plurality of wooden boards positioned in side to side parallel abutment. At least one of such boards is a whole natural wooden board, and at least one of such boards is a laminated wooden board. A plurality of spaced pins extend transversely through the wooden boards. A cam on the pins pulls and holds the boards together. In addition, my invention is a method of forming wide wooden planks from two or more narrow wooden boards (as described) by positioning the boards in side to side parallel abutment and embedding a plurality of spaced pins transversely through the boards. Further, a method of increasing the strength of a wooden plank is to cut the plank longitudinally into sections, add at least one laminated wooden board, position the sections in side to side parallel abutment, and subsequently embed a plurality of spaced pins in the sections.