Pressing plunger mechanism for a glassware forming machine

A pressing plunger mechanism for a glassware forming machine, said pressing plunger mechanism comprising:

• a fixed housing mountable on said glassware forming machine;
• a movable housing mounted on said fixed housing;
• a plunger holder movably mounted on said movable housing;
• a drive unit mounted on said movable housing, said drive unit comprising a threaded spindle fixedly attached to said plunger holder, a nut engaged with said spindle, said nut being coupled to a driven shaft, said driven shaft having a first bevel gear mounted thereon, said first bevel gear engaging a second bevel gear mounted on a drive shaft of an electric motor, rotation of said drive shaft of said electric motor rotating said nut and thereby moving said fixed spindle in a lengthwise direction, lengthwise motion of said spindle moving said plunger holder relatively to said movable housing from a lower inoperative position to an upper pressing printer during a working cycle;
• and
• a pressing plunger supported on said plunger holder.