Migler's windmill as a lamppost-windmill, and with sails mounted on a common mast, and with horizontally yoked sails, and as a river-turbine, and as a windmill-sailboat

摘要

The disclosure presents several embodiments of Migler's vertical axis windmill. In the first, the windmill is adapted as a windmill-lamppost which stores electrical energy during daylight and operates the lamps at night. In the second, some sail restraints are eliminated by mounting sails on a common mast. In the third, a yoke allows sails to be mounted close together on a horizontal arm and also eliminates some sail restraints. In the fourth, Migler's vertical axis windmill is submerged in a river, with additional generators used to harness the slow movement of the water. In the fifth, a boat is powered by Migler's vertical axis windmill using direct drive of the propeller. In the sixth, a boat is powered by Migler's vertical axis windmill using a transmission to enhance propeller speed. In the seventh a boat is powered by Migler's vertical axis windmill using electrical energy to operate an electric motor. In the eighth, a boat is powered by Migler's vertical axis windmill using a storage battery to operate an electric motor when there is no wind. In the ninth a boat is powered by Migler's vertical axis windmill, having pontoons to provide stability during strong crosswinds.