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US 4,421,466 AGranted
Apparatus for molding concrete articles and the like
AssigneeAuto-Cast International, Ltd.
InventorCharles J. Heitzman
Life of this patent
Estimating the term…
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AssigneeAuto-Cast International, Ltd.
InventorCharles J. Heitzman
Estimating the term…
An elongated mold box encloses a removable rectangular pallet and has a center portion pivotally supported by a carriage which is supported for vertical movement by a pair of vertical guide posts mounted on a frame. Hydraulic cylinders are connected to move the carriage vertically relative to the frame and pivot the mold box relative to the carriage for tilting the mold box between a vertical concrete filling position and a horizontal position for stripping a molded concrete article from the mold box. The pallet is supported within the mold box by a generally flat tray member which is guided by parallel rails within the mold box and aligned horizontal guide rails on a run-out platform. The mold box also carries a hydraulic cylinder for moving the tray member between a retracted position within the mold box and an extended position on the run-out platform.
In apparatus for molding articles of self-hardening moldable material and including a mold box defining a molding cavity, means supporting said mold box for tilting movement between a generally vertical filling position and a generally horizontal stripping position, means for supplying the moldable material to said mold box when in said filling position to form a molded article within said mold box, means for receiving a molded article from said cavity after said mold box is moved to said stripping position, and means for stripping the molded article from said mold box, the improvement wherein said means supporting said mold box comprise a movable carriage having pivot means supporting an intermediate portion of said mold box for tilting movement, linear guide means supporting said carriage for generally vertical movement, power actuating means for tilting said mold box relative to said carriage, and power actuated means for moving said carriage vertically before said mold box is tilted completely to said filling position.
In apparatus for molding articles of self-hardening moldable material and including a mold box defining a molding cavity, means supporting said mold box for tilting movement between a generally vertical filling position and a generally horizontal stripping position, means for supplying the moldable material to said mold box when in said filling position to form a molded article within said mold box, a pallet disposed within said mold box, a run-out platform for receiving said pallet and a molded article from said cavity after said mold box is moved to said stripping position, power actuated means for moving said mold box between said filling and stripping positions, and power actuated means for stripping said pallet and the molded article from said mold box, the improvement wherein said mold box includes a generally flat tray member supporting substantially all of said pallet, guide means supporting said tray member for linear movement from a retracted position within said mold box to an extended position projecting from said mold box, and said platform has guide means for maintaining the linear movement of said tray member.
Dependencies are inferred from the claim text.