Abstract: The system responds to signals from a weight computer to depress selected keys on the postage metering machine keyboard. A solenoid is associated with each key. The solenoids are mounted on a carriage for movement toward and away from the keyboard. Spring bias and weight forces the carriage toward the keyboard. Energized solenoids hold an engagement tip extended so that when the carriage is released toward the keyboard, the carriage force will depress the selected key. The engagement tip on unenergized solenoids contact the key but the solenoid shaft moves upward into the solenoid without depressing the key.

Abstract: The system is responsive to a signal from a weight computer to selectively move levers on a lever type postage metering machine to postage selecting positions corresponding to computed postage. The system includes a plurality of actuating members with connecting members for embracing the tabs on the ends of the postage selecting or setting levers of the metering machine for moving the levers to the selected positions. The connecting members follow the natural motion of the tabs on the postage selecting levers. The operating members are moved to their selective positions by alternating rotating discs controlled by an alternately driven motor, which is driven in response to a signal from the weight computer with a comparator circuit for comparing and selecting the respective positions of the discs.

Abstract: Platform loads are applied to a single load cell through a load transfer frame. The load transfer frame is suspended for movement with the platform. An interconnection member under the influence of an overload spring normally holds the load transfer frame and the platform in a load transfer relationship. Loads in excess of a predetermined value cause the interconnection member to move out of load transfer relationship with the load transfer frame so that the platform can move against stops without damaging the load cell. The flexure plates with integral flexure rods are utilized to suspend both the load transfer frame and interconnection member.