Abstract: A title rack page drive for a jukebox includes a plurality of title pages which are each pivotally mounted to pivot about a horizontal axis and a page drive for turning the pages. The page drive selectively turns an individual one of the pages at a time about the pivot axis of that page by positively engaging a pin on an individual one of the pages and applying a generally arcuate motion to each pin in order to rotate the pages about the axis.

Abstract: The invention relates to an improved auxiliary circulation system for vehicle heaters in which the engine coolant is circulated through the vehicle heater after the engine is shut off. The improved system includes a voltage monitor coupled between the power source and an auxiliary electric pump to monitor the voltage of the power source and prevent the system from being actuated unless the power source voltage exceeds a predetermined level and to open the circuit between the power source and the pump when the power source voltage drops below a predetermined level.