Postage meter security system

Abstract From the Canadian patent

A postage meter having a plurality of value wheels extending through a window in a housing and die protector, bars between the value wheels the die protector bars having, a first position at which they extend a further distance from the housing than the value wheels and a second, retracted, position. The die protector bars extend in the housing between a pivot block and a cam block. A die shield is slidably movable between a first position aligned with the window, and a second, retracted, position. The cam block and dead bolt are positively moved in common via cam surfaces, by a rotatable yoke. A latch lever may engage the dead bolt to latch the postage meter to a mailing machine.