Abstract: A sail envelope has an inner open area between two spaced sail surfaces with spaced battens supported in line from the head of the sail envelope to the foot, between the mast in the open area at the front of the envelope and through sealed openings at the leech of the sail envelope. A batten support strip supports, spaces, and guides the center portion of the battens and a batten socket support strip supports and spaces the batten sockets along the mast. Each batten socket permits pivoting of its cooperating batten. Constraining devices place a compression force on each batten externally of the leech to place a curvature in each batten which is transmitted to one side of the sail envelope with the other side being drawn straighter. The boom attachment opening in the sail envelope is sealed and a drain is located in the foot of the sail envelope. Friction reducing material is used between the mast, sail envelope, and batten sockets where desired.

Abstract: A solar water heating system for heating water in a solar panel and storing it in a water storage tank includes a pump which circulates the water in the system, from the water storage tank through the solar panel and back to the water storage tank; a freeze protection means permits water to bleed off from a location between the solar panel and water storage tank when the pump is off to maintain a flow of water through said solar panel and connecting parts thereof which are located in an area where freezing can be encountered. Means are provided to turn the pump on and off and a backup heating device is located in the water storage tank, such as an electrical heating unit, to provide heat when there is not sufficient solar energy.

Abstract: The distillation apparatus includes an upstanding closed boiler which receives a fluid mash, a mixture including alcohol and water, and has a plurality of heating means, including a pre-heat means, to boil the mash and produce a vapor at the top thereof; two heat exchangers are located at the bottom of the boiler; one is heated by fluid from a compressor and one is heated by exhaust gases from an internal combustion engine which drives the compressor. The fluid mash is removed from the boiler at a first point, passed through a solar panel and returned to the boiler at a higher level; the fluid mash is removed from the boiler at a second point, where new mash is added, and both used as the coolant for the engine; when the fluid has cooled the engine it is then passed over an enclosed coil which carries exhaust gases from the engine. It is then returned to the boiler at a higher level; exhaust gases from the engine are injected directly into the fluid mash adding heat thereto.