Abstract: In one embodiment, an apparatus comprises an inverter assembly comprising a base plate to interface with a bottom of an upright gas tank; a rotatable shaft; and at least one swing arm coupled to the base plate and the rotatable shaft; wherein the inverter assembly is to pivot about a horizontal axis to swing the base plate and a bottom side of an upright gas tank placed thereon in an upward arc responsive to rotation of the rotatable shaft.
Abstract: A method for controlling concrete mix casting equipment to be dismountably attached to a crane, said casting equipment being controlled on the horizontal plane by moving the crane, so that a substantially vertical motion of the casting equipment is achieved during the operation of the casting equipment by vertical motion of the lifting element of the crane. The invention also relates to a concrete mix casting equipment to be dismountably attached to a crane.
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