Abstract: An installable slide locking apparatus is installable on a press mechanism so as to lock a press slide of the press mechanism in any of a plurality of positions. The press mechanism includes a gear train means rotatably drivable so as to reciprocate the press slide. An installable slide locking mechanism, which includes a gear reducer and a locking gear, is mounted adjacent an opening made the gear train housing. The gear reducer meshes with an input gear of the gear train, thereby preventing rotation of the gear train when the locking gear is moved to a locking position with respect to the gear reducer.

Abstract: A method of installing a slide locking mechanism in a press mechanism so as to lock a press slide of the press mechanism in any of a plurality of positions. The press mechanism includes a gear train mounted in a housing. An installable slide locking mechanism, which includes a gear reducer and a locking gear, is mounted adjacent an opening made in the gear train housing. The gear reducer meshes with an input gear of the gear train, thereby preventing rotation of the gear train when the locking gear is moved to a locking position with respect to the gear reducer.

Abstract: A method and apparatus for changing dies on a moving bolster for a press including a control circuit in combination with a cam-actuated deceleration valve. A ramp is located at a predetermined location along a path for the moving bolster. Upon reaching the ramp location when the bolster is moving toward the press, the deceleration valve is actuated to inhibit and shut off a flow of air to air-operated motors on the bolster. Thereupon, the moves to a stop at a predetermined location relative to the press.

Abstract: Included in the locking apparatus is a housing assembly having structure defining paths of movement for a latch pin, shuttle pin and support pin. The latch and support pins have inclined surfaces which engage the shuttle pin and the latter engages housing assembly structure. The foregoing structure is constructed and arranged to provide a locking apparatus which permits sliding movement of the support member in one direction and automatic locking of the support member when moving in an opposite direction.