Patent ID: 8113815
Filing Date: 2012-02-14
Classification: B28B,B29C

Abstract:
1. A mold assembly for manufacturing dry-cast concrete blocks in an automated dry-cast block machine, the mold assembly comprising: a plurality of liner plates forming at least one mold cavity, each liner plate corresponding to and forming a perimeter side of the mold cavity, wherein at least one of the liner plates is moveable horizontally toward and away from an interior of the mold cavity, the mold cavity having an open top and an open bottom in vertical directions relative to the horizontally extending perimeter sides of the mold cavity; a master drive element routed about up to all perimeter sides of the mold cavity external to the mold cavity, including the perimeter side corresponding to the at least one moveable liner plate, and forming a continuous loop, wherein the master drive element is configured to be driven horizontally back and forth about the loop to provide a first linear force in a first horizontal direction and a second linear force in a second horizontal direction opposite the first horizontal direction substantially in parallel with each perimeter side along which the master drive element is routed; and a secondary drive assembly including: