Wheel mounted invertible molds

Claim 1

Apparatus for casting concrete articles including: a main frame; a mould assembly including a first main mould section, a first removable mould section attached to the main mould section to form with it a mould for articles to be cast, a second main mould section facing oppositely to the first main mould section so that when the one is in top position the other is in bottom inverted position, and a second removable mould section attached to the second main mould section to form with it a second mould for an article to be cast, each removable mould section being adapted, when the associated main mould section has been brought to bottom position and lowered onto a support, to be detached from said associated main mould section to serve as a pallet supporting an article cast in the such mould; means mounting the mould assembly on the main frame for vertical movement and also for rotation about a substantially horizontal axis to bring said main mould assembly sections to a top position or to a bottom inverted position; lifting means operatively associated with said frame for raising and lowering the mould assembly; a water tank operatively mounted on the main frame; a boiler operatively associated with said water tank to receive and boil water therefrom; and steam conduits operatively associated with said boiler for injecting steam from the boiler to articles cast in the moulds for steam curing thereof.