Abstract: A shaft torsional oscillation signal of a rotatable torsional system including a rotor of a synchronous machine, at least one rotatable body and a shaft coupling the synchronous machine and the rotatable body, is detected. The shaft torsional oscillation signal with a specific frequency is made to advance the phase thereof by a stabilizing control device. The field voltage of the synchronous machine is so controlled that a sub-synchronous resonance (SSR) of the rotatable torsional system caused by the specific frequency is restrictedly controlled by the shaft torsional signal of the specific frequency phase-advanced.

Abstract: Steam flow and pressure conditions needed in a turbine to satisfy the speed and load demand of an electric power generating system are controlled by a programmed digital computer system during start-up, synchronization and operation. Manual backup control is provided for the computer control. An operator interface is provided with the computer through a panel and various communication devices.

Abstract: Apparatus for controlling the movement of a phonograph arm, pivoted for movement in horizontal and vertical planes, so as to maintain a desired stylus pressure. Displacement of the stylus resulting, for example, from passages of heavy modulation is used to generate electrical signals. A feedback system utilizes these signals to control the operation of horizontal and vertical rotational control devices.

Abstract: An electronic lockout system for the starter motor of an internal combustion engine includes means for operating the starter motor only if the engine flywheel is stationary. The system also includes means for automatically deenergizing the starter motor when the engine achieves a predetermined rotational speed and independently of the continued operation of the starter switch.

Abstract: This invention provides novel mechanical work generating means. Basically, the novel mechanical work generating means provided by the present invention comprise: first means for mechanically generating a heat component of work; second means, mechanically interconnected to the first means, for mechanically generating a non-heat component of work; and third means, mechanically interconnected to the first and second means, for combining the heat and non-heat components of work into a resultant mechanical work output.

Abstract: An apparatus for generating electric current by the force of a fluid in motion. The device comprises a support structure; two substantially parallel axles positoned in an alterable vertically extending plane detachably supported by said housing and capable of rotation within the support means therefor; two substantially parallel wheels positioned on each of said axles and the wheels on one axle being in substantially the same vertically extending planes as the wheels on the other axle; two belts, one of which connects the two wheels in one plane and the other belt connects the other two wheels in the other plane; and a series of blades each one of which is detachably connected at the opposite ends thereof respectively to the two belts. In operation, fluid entering a second stage of a two-staged cascaded flow device consists only of fluid from the exhaust of the first stage of such device.

Abstract: An automatic output control method and dynamo equipment for generating sets using automobile wheel friction drive, which, in relation to generating sets using automobile wheel friction drive and consisting of a base plate with a jack attached and a dynamo which is removable from the said base plate and tiltable so that its shaft bears upon an automobile wheel driven by the automobile engine to achieve electricity generation over long periods of time with good efficiency and stability by utilizing the said automobile engine power, features the use of a tapered drum having a parallel section for the dynamo drum driven by friction with an automobile wheel, arranged so that the said tapered drum, sliding freely in the axial direction along a screw groove notched along the shaft, and so that a coil spring fits around the said shaft in such a manner that the tapered drum may be pressed always in the direction of the smaller diameter section by the elastic tension, that the revolution of the tapered drum may be tran

Abstract: A gas turbine power plant is provided with an industrial gas turbine which drives a generator coupled to a power system through a breaker. The turbine-generator plant is operated by a hybrid control system having digital function capability during sequenced startup, synchronizing, load buildup and steady state load, and shutdown operations. The control system also contains monitoring and protective subsystems which function through all stages of operation, with redundancy and permissive features which maximize turbine availability.

Abstract: As an improved way of effecting fast valving of turbines of power system steam-electric generating units for the purpose of improving the stability of power transmission over transmission circuits to which their generators make connection .Iadd., .Iaddend.when stability is threatened by line faults and certain other stability endangering events, and in which intercept valves are rapidly closed on a momentary basis, the procedure of intercept valve closure is supplemented by simultaneously initiating turbine and steam supply source control programs, which (a) .[.being.]. .Iadd.bring .Iaddend.into effect a sustained reduction in turbine driving power via employment of measures which may include full closing of some or all control valves and/or employment of preprogrammed control valve repositioning, with provision to automatically divert high pressure steam to the condenser or to atmosphere as a way to prevent discharge of steam through high pressure safety valves.