Abstract: A solar liquid heating system having a collector receiving solar energy and heating a liquid. A liquid transfer pump moves the heated liquid to a heat transfer tank which heats water. The collector has a plate assembly mounted on a frame. Heat insulated bottoms, sides, and ends surrounded by the frame form an elongated chamber accommodating the plate assembly. The plate assembly has a plurality of side-by-side longitudinal plates. Adjacent plates have generally C-shaped sections that are located about a longitudinal tube for carrying liquid. Adjacent plates have lip and hook inter-connecting structures that cooperate with each other to clamp the tube between the C-shaped sections of the plates. The opposite ends of the tubes are connected to transverse tubular headers. The headers project through resilient grommets mounted on the sides of the frame. The top sides of the plate assembly are coated with black solar energy absorbing material.

Abstract: A solar energy collector having panel assemblies for absorbing solar energy and transferring heat to moving air. Each panel assembly has a heat insulated housing carrying a plurality of side-by-side solar energy collector units. Each unit has a base plate carrying upwardly directed longitudinal ribs providing solar energy collector surfaces and downwardly directed longitudinal fins providing heat dissipating surfaces. A longitudinal foot along one side of the plate supports the collector unit on insulating material located within the housing. A coating tongue and groove structure supports the opposide side of the plate on the adjacent collector unit. A light transparent sheet member mounted on the housing covers the collector units and forms therewith a dead air chamber. Air is moved through longitudinal passages between adjacent feet with air moving apparatus whereby heat is transferred to the air moving along the fins.

Abstract: A printer's paper pile inverter includes two parallel, spaced apart, C-frames held in spaced relationship to each other by a base frame including a plurality of C-frame connecting straps integral with, and extending between the base legs of each of the C-frames. First outwardly extending legs of the C-frames and a pallet lift fork mounted on the base frame are slid under a first pallet supporting a pile of papers to be inverted. A second pallet is inverted and placed on top of the paper pile. A jacking mechanism supported on the base frame of the inverter powers the lift fork to lift the first pallet until the second pallet comes into contact with the under surfaces of second outwardly extending legs of each C-frame.