Self-actuating molds for vertically casting concrete pipe

Details Self-actuating molds for vertically casting concrete pipe Self-actuating molds for vertically casting concrete pipe

1995-05-05

1998-02-03

Weber, Thomas R.

Static molds

Mold including core and means to remove core

249152, 249153, 249178, 249179, B22C 1310, B29C 3320, B29C 4140

Patent

active

057140804

ABSTRACT:
A gated mold for casting concrete pipe requires no wedges or bolts for securement. A core mold may be contracted by lifting at an actuation point, and expanded by resting on a base ring. An external mold may be expanded by lifting at an actuation point, and contracted by resting on a base ring. The mold gates are opened and closed with sets of collapsing links pivotably attached to a longitudinally extending actuation column. Longitudinal motion of the actuation column forces the links to collapse or extend, thereby expanding or contracting the mold. Appropriately positioned actuation and lifting points are provided such that the mold can be lifted vertically along the longitudinal axis containing the mold center of gravity.

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