Patent ID: 7243646
Filing Date: 2007-07-17
Classification: B28D,Y10T

Abstract:
1. An apparatus operable for shearing a concrete or metal pile member, comprising: frame means having laterally opposed sides, a first end, and a second end defining a first open portion for receiving the member to be sheared; an abutment gate pivotally mounted at said second end, a hydraulic ram connected with said gate for pivoting said gate relative to said first open portion between an open position to allow said first open portion to be moved laterally onto the member and a closed position to enclose the member, first and second abutment surfaces on said gate disposed in parallel vertically spaced relation for abutting the member, latch means connected with said gate and said frame means for releasably engaging said gate with said frame means, and a hydraulic ram connected with said latch means for moving it between an unlatched position to allow pivoting of said gate and a latched position to lock said gate in its said closed position; a blade carrier movably mounted on said frame means and operable for being moved between a retracted position and an extended position traversing said first open portion, and a replaceable cutter blade removably connected with said blade carrier having a cutting edge designed to be pushed through said member when said blade carrier is moved from its retracted position to its extended position; a first and a second stationary shearing blade on said gate disposed horizontally in parallel vertically spaced relation having opposed facing horizontal surfaces defining first and second vertically spaced horizontal shearing surfaces disposed in respective horizontal planes above and below the planes of a top surface and a bottom surface of said cutter blade and forming upper and lower perimeters of a second open portion into which said cutter blade passes when said blade carrier is moved to its extended position; and hydraulic rams connected with said blade carrier operable for moving said blade carrier from its retracted position to its extended position, and pushing said blade cutting edge through said member and through said first and second horizontal shearing surfaces into said second open portion, thereby shearing said member.