Paper deck power lifter kit for retrofitting a manually cranked offset printing press

A paper deck variable speed power lifter kit for retrofitting a manually cranked offset printing press, said kit comprising:

• (a) a reversible electric motor connectable to a paper deck elevation crankshaft of a manually cranked offset printing press;
• (b) an electrically activated solenoid connectable to a paper deck catch release of a manually cranked offset printing press;
• (c) a manually operated polarity reversing switch electrically connected to the electric motor for determining the direction of electrical current to be delivered to the electric motor, thereby selecting the direction of rotation of the electric motor and thereby selecting the direction of vertical movement of the paper deck of a manually cranked offset printing press;
• and
• (d) a manually activated electrical variable speed switch electrically connected to the electric motor to enable vertical positioning of the paper deck at any elevation and manual control of the speed of rotation of the electric motor, thereby enabling manual control of the elevation and speed of vertical movement of the paper deck of a manually cranked offset printing press.