Abstract: Transformable hydroelectric station for a water storing dam, having means for alternatively permitting incorporation and positioning of selected ones of a plurality of hydroelectric assemblies each comprising a machine individually designed to be fitted against the water passing means of the dam. Additionally, the water storing dam includes auxiliary equipment permitting maneuvering of the hydromotive assemblies when they are fitted to or removed from the main structural body of the dam.

Abstract: Web tension in a creped paper rewinder is controlled at two stations along the web route by respective counter-weighted dancer rolls which also serve as sensors for a drive speed control mechanism. Primary drive speed is under programmed control whereby a first, length percentage of a rewind reel length determines the high speed drive duration whereupon the drive speed is reduced to a lower rate for rewind reel length completion. Rewind reels are self-started on vacuum mandrels which are magazine supplied to the reel starting position. The supply web is longitudinally slit into a multiplicity of strips, each strip being wound about the vacuum mandrel in a reel laterally distinct from adjacent reels but with all reels built upon a common axis mandrel. Tails of the several strips are severed from the web supply by traversing cutter-gluer apparatus which simultaneously spots the end of each cut tail with a portion of adhesive to prevent unreeling following strip reel removal from the mandrel.

Abstract: A device for converting the energy of sea waves into electrical energy. A tank-like inlet converter receives sea water from the peaks of waves and discharges it to a water-driven turbine. The turbine drives an electrical generator. Spent water from the turbine is delivered to an outlet converter which delivers the spent sea water to the troughs of the waves. The inlet and outlet converters are provided with controllable water inlet and outlet valves, respectively, which control the flow of sea water into and out of the inlet and outlet converters, respectively.

Abstract: This apparatus stores natural energies available on and/or under the surf of the world's oceans. Such energies include solar energy, wave energy, wind energy, as well as energy stored in the heat of the sea water. The energy extracting and storing equipment is installed on a floating vessel or raft. The energy storing equipment includes flywheel type rollers or cylinders driven by electric motors energized by electric generators which in turn receive their energy from the energy extracting equipment. The flywheel type rollers or cylinders include a supporting hollow cylinder having a relatively thin wall onto which there are wound fibers impregnated or embedded in a synthetic resin.

Abstract: In a venturi-shaped wind tunnel, a wind is generated by a wind generating device in the larger end of wind tunnel. Wind thus generated is caused to speed up by the venturi and drives a rotatable wind responsive device in the smaller end of the wind tunnel. The wind responsive device, in turn, drives an alternator which produces an alternating current, preferably at a fixed frequency determined by speed of rotation. The output of the alternator drives a load. The output of the alternator can also be put through a converter and converted to d.c. which drives a variable speed d.c. motor supplying power to the input fan. A monitoring means sensing the air flow may then cause a regulator to adjust the speed of the d.c. motor to maintain alternator speed constant.

Abstract: Improved apparatus for withdrawing useful energy from a fluent medium, the apparatus comprising supports with tension members spanning the distance between them, foils distributed along the tension member spans, and circular members capable of rotating freely with the tension members, power being taken off the apparatus through fewer than all of the circular members.

Abstract: A magnetohydrodynamic electric generator for the direct energy conversion of the kinetic energy of saline water flowing through a magnetic field, preferably in the constricted part of a duct. Means may be provided to increase the kinetic energy of the flowing saline water using wave-powered air compressors and/or water pumps. Also described are sea platforms containing a multitude of electricity generators in a configuration to maximize the conversion of the kinetic energy of flowing saline water into electric energy.

Abstract: Emitters and rotary hydraulic displacement pumps are associated with one or a number of propeller-type transducers and connected to receivers each having a rotary hydraulic displacement motor coupled to an alternator. The emitters are connected to the receivers by means of a hydraulic circuit for an auxiliary fluid which is admitted into at least one shunt-connected energy dissipator and the flow of which is regulated as a function of the random energy variations of the natural fluid. The energy-conversion system is primarily applicable to hydroelectric power plants of the stream or river type, to wind-driven power plants and to ship propulsion.

Abstract: A control device for turbines with speed and load control, in which the load control includes an integrator with or without an output value limiter. The speed control and the load control are functionally independent of each other over the entire working range. The speed control likewise includes an integrator, and the outputs of the two controls are conveyed to a MIN-member as input signals while the smaller input becomes the output signal of the MIN-member and takes over the positioning of the turbine inlet valve.

Abstract: The invention relates to apparatus for and method of generating electricity from wind energy.The apparatus comprises means such as a foraminous condenser plate and a condenser surface, e.g., the earth, for producing an electrostatic field in the open through which wind can blow, means such as needle points and balls or fine wires and cylinders capable of creating a corona discharge or equivalent ion or electron generator for producing charged particles to be entrained in and carried by the wind against the direction of movement imposed on the particles by the field, which results in an increase in the electric potential across the field, means such as a second foraminous plate or the earth for collecting the charged particles and means such as a high voltage power regulator and converter for making the increased potential available for utilization.The method comprises operations corresponding to the means, viz.

Abstract: In a wind-driven generator system, the generator load curve is matched to the wind-driven rotor characteristic by an electronic field current control which is responsive to the rotor speed. A tachometer circuit produces pulses the repetition rate of which is proportional to rotor speed. The pulses are counted in a predetermined time interval, and a stepwise control of field current is effected in accordance with the count. Switching from the first step, in which field current is zero, to the second step, in which field current is relatively high, takes place at a count which is spaced by intermediate counts from the count at which switching takes place from the second step to the first step.

Abstract: A control system for a self-excited alternator which includes an auxiliary winding adapted to supply excitation to the alternator field winding incorporates a circuit for supplementing field excitation when the available energy from the auxiliary winding is less than the desired magnitude of field excitation. The self-exciting a-c current from the auxiliary winding is coupled through a phase-controlled rectifier circuit to the alternator field winding. A secondary excitation source such as a battery is coupled to the alternator field winding through a chopper circuit. A regulating circuit is responsive to a field current reference signal for controlling the conduction of the phase controlled rectifier circuit and the chopper circuit in a manner to regulate the alternator field excitation to the desired value.

Abstract: A geothermal energy recovery system of improved efficiency makes use of thermal energy stored in hot, solute-bearing well water as it is pumped upward to the earth's surface through an extended heat exchange element for continuously heating a downward flowing organic fluid to a supercritical state. Some of the energy of the latter fluid is used within the well for operating a turbine-driven pump for pumping the hot, solute-bearing well water at high pressure and always in liquid state to the earth's surface, where it is reinjected into the earth in another well. The temperature difference between the upward flowing brine and the downward flowing organic fluid is maintained finite in a predetermined manner along the subterranean extended heat exchange element.

Abstract: A power equipment includes a rotor containing a storage battery or an assembly of storage batteries, a main driving electric motor, and a generator. The rotor does a fly-wheel's function. An inertia force of the rotor gained is efficiently utilized for driving of a car and moreover the excessive inertia force is converted into electric energy and stored in the storage batteries supplying efficiently an automobile with power.

Abstract: This relates to an electric power generating system particularly adapted for use in locals where there is an absence of a water supply with sufficient elevation to supply the required power for an electrical energy generating system, or the water supply is insufficient for the required generating system. The deficiency is overcome in part by providing an elevated water supply reservoir and a system of gravity actuated water powered pumps for utilizing the discharge of the generating system to pump at least a portion of the discharge to the elevated reservoir. It is further proposed to utilize a pumping system of the wave motor type for pumping relatively available water at sea level to the elevated water reservoir. It is also proposed to provide a split stream of water from an elevated water supply to two generators at different elevations with the discharge from the uppermost generator being recombined with the other portion of the split stream for introduction into the generator at the lower level.

Abstract: A free standing, vertical axis rotor employs both fixed and pivoted airfoil blades assembled on a triangular rotor frame. The angle of attack of the pivoted blades is controlled with reference to the prevailing winds. The rotar base terminates on a ring shaped tower mounted on guiding wheels disposed in a circular pattern on pillars. The revolving ring shaped base forms the armature of an energy converter by electromagnetic induction allowing thereby the conversion of rotary motion to electric energy at ground level.

Abstract: The disclosure concerns a hydroelectric machine set in which the electrical machine is in the form of a rim which surrounds a service water duct containing the bladed wheel of a hydraulic machine, and wherein the blades of said wheel are joined to the rotor of the electrical machine by torque-transmitting connections which allow free radial movement of the blades relatively to the rotor. Preferably, those connections also permit pivoting movement of the blades relatively to the rotor.

Abstract: A wave energy generator produces electric power from wave motion by means of a distortable underwater section thereof which has a plurality of flexible compartments containing liquid and gas and equipped with flexible internal one-way flow walls separating the compartments, so that in response to wave motion the internal liquid flows in one direction through the compartments and through a fluid flow-powered motor-generator combination. The underwater distortable flexible structure described is the lower portion of a body which also has an upper portion above water so that the combination thereof is useful as a breakwater or dock, when anchored, or as a barge.

Abstract: Radiant heat is converted to electricity by a heat pipe - turbogenerator combination. Specifically, a heat pipe having heat-sorbing wicking or other material in an evaporation section thereof from which the heat pipe liquid in contact with or adjacent said wicking may evaporate, has such wicking heated by radiant heat, as by solar heat, vaporizing the liquid to a gas, which passes through a turbogenerator to a condensation section wherein it is condensed to the liquid, which is returned to the evaporation section. The heat pipe - turbogenerator assembly is suitably externally insulated, as by a vacuum shield, to prevent heat losses and heat is recovered from the condenser portion of the heat pipe and returned to the evaporator portion.In an application of the generic invention it is employed in a building, such as a house, where it is utilized on wall and roof portions thereof and serves as at least a partial supporting structure for these.

Abstract: A generator is driven by a miniature hydraulic turbine which, in turn, is driven by water flowing to, through or from the water system of a residential or commercial building. Electricity generated by the generator is stored in storage batteries for emergency or supplemental use. A distribution panel is operable to give a readout of the amount of stored electricity. The readout can be obtained by pushing a button on the distribution panel and such readout directly and immediately informs the reader of the number of hours a specific appliance can be operated by the stored electricity.