Abstract: A method includes removing material from a die and thereby changing a location of a cutting edge of the die in a punch entry direction and changing a cutting edge cross-section of the die; and assigning a punch and/or a workpiece thickness to the die based, at least in part, on the change in the cutting edge cross-section of the die.

Abstract: Disclosed herein is improvement of the standard Type-E or Type-F coupler, which is compatible with the existing standard couplers, for providing automatic uncoupling features. The improved coupler includes a coupler head of the type having standard coupling knuckle, guard arm, and an standard interior knuckle-control structure within a lock-receiving chamber. Said interior knuckle-control structure includes the standard components such as a knuckle-lock attached to a lock-lift assembly, a knuckle thrower and other standard components. In order to provide the coupler with automatic uncoupling feature, an electric actuator, such as a motor or a solenoid, is installed within a chamber provided behind said guard arm. Said actuator controls the movement of the lock-lift assembly via a leverage system provided so that the coupler lock can be lifted to the lock-set position by said actuator. The actuator is connected to and controlled by the serialization and operation-control system of the train.

Abstract: A linkage-actuator for the coupler knuckle-assembly of a railway passenger car which is mounted on the coupler head directly adjacent to the knuckle-assembly, which linkage-actuator does not extend along the shank connecting the knuckle-assembly to the car proper, thereby saving considerably on space and weight. The linkage-actuator allows for both manual and pneumatic actuation of the knuckle-assembly. The linkage-actuator for the knuckle-assembly is mounted directly on the coupler head. The rotatable operating rod for placing the knuckle into its lock-set or fully open position is actuated by a pivotal plate mounted on top of the coupler head. One end of the plate is urged into its non-actuated, horizontal position by a spring, while the other end of the plate is connected to an eccentric cam that is coupled to the rotatable actuating rod of the knuckle-assembly.