Abstract: A device for converting linear reciprocal motion to continuous rotary motion whereby both forward and backward power strokes of the reciprocal motion contribute to the power output of the device, the device including two one-way clutches, the first clutch engaging and the second clutch slipping during the forward stroke and the second clutch engaging and the first clutch slipping during the backward stroke so that the clutches transmit alternatively power to an output shaft, the output shaft being connected to a flywheel which stores energy and which reduces the magnitude of fluctuations in the rotational speed of the output shaft.

Abstract: A method of detecting rapid loss of electrical load in an industrial free turbine prior to significant turbine overspeed and reducing fuel to a predetermined lower power level thereby to avoid the need for a complete shutdown of the engine is disclosed. The method is unaffected by small power losses and by normal transients.

Abstract: A single lens reflex camera having a Keplerian telescope type eye level finder optical system and the display of data in a viewfinder, the data display is provided on the second focus surface of the optical system or in the vicinity thereof. A interchangeable eye piece housing uses a mount device having a camera side mount and an eye piece side mount provided between the second focus surface and an eye level eye piece of the optical system. An eye level eye piece housing and a waist level eye piece housing are interchangeably mounted on the camera side mount. The eye level eye piece housing comprises an eye level eye piece and an eye piece side mount.

Abstract: A plant for utilizing kinetic energy inherent in the wave movement of water or heaving of the sea. The plant comprises a float unit and energy absorption apparatus connected to the unit. The absorption apparatus comprises an immersed piston built into an elongate acceleration pipe, which is open at both ends and substantially vertical, this pipe being connected to the float unit and accompanying it in the wave motion of the water.The piston is connected to a hydraulic motor driving an electric generator.The piston is arranged in a portion with extended cross section upwards in the acceleration pipe.Coupled between the piston and hydraulic motor there is a hydraulic cylinder with a double-sided piston, and a rectifying hydraulic circuit for always supplying hydraulic pressure to the same side of the hydraulic motor.A flywheel can be connected between the hydraulic motor and generator for smoothing out the action of pressure variations on the generator.

Abstract: A power-generating installation comprises a plurality of modular power plants each comprised of an internal combustion engine connected to an electric machine. The electric machine is used to start the engine and thereafter operates as a generator supplying power to an electrical network common to all the modular plants. The installation has a control and protection system comprising a plurality of control modules each associated with a respective plant, and a central unit passing control signals to the modules to control starting and stopping of the individual power plants. Upon the detection of abnormal operation or failure of its associated power plant, each control module transmits an alarm signal back to the central unit which thereupon stops, or prevents the starting, of the corresponding power plant. Parameters monitored by each control module include generated current and inter-winding leakage current of the electric machine.

Abstract: A wind turbine on an essentially vertical mast converting wind power to electric power for the propulsion motors of a screw propelled ship. The turbine is omnidirectional and capable of being reefed for speed control.

Abstract: An improved electric power plant (10) includes a water turbine (30) and a drive wheel (34) contained within a housing (22) for converting hydraulic energy to electrical energy. The housing (22) includes openings (90) and (102) for connecting the power plant (10) to a water line (12) or to a sewer line (18) for operating the turbine (30) in either an undershoot or overshoot condition. A plurality of reversible vanes (94) are removably attached to the perimeter of the water turbine (30) for operating the turbine in either an undershoot or overshoot condition. A bypass line (16) extends from the inlet pipe to the housing (22) to the outlet pipe to provide a means for repairing the power plant (10) without interrupting water or sanitary sewer service. The main electrical generator (70) is energized through a belt (72) driven by its engagement with the drive wheel (34). Ultraviolet ray lights (78) and an ozone generator (80) are included within the housing (22) to eliminate bacteria and to reduce odors.

Abstract: A hand-held camera, preferable of the self-developing type, for sequentially positioning different areas of a film unit in position for exposure. The camera includes a chamber for locating a film cassette containing at least one film unit in position for exposure of a predetermined area of the film unit. Mounted adjacent to one side of the chamber is a film cassette positioning apparatus which cooperates with the camera's shutter actuating apparatus to automatically move the film cassette after the predetermined area of the film unit has been completely exposed so as to locate another predetermined area of the film unit in position for exposure.

Abstract: An undershot current motor is provided wherein a horizontal drive shaft is mounted on a float moored or anchored in moving water, the drive shaft being transverse to the moving water below, the drive shaft having at least two sets of 3-bladed paddle assemblies affixed thereon, wherein the blades are driven by the moving water and power is generated at the drive shaft. This new current motor may be used in tidal water or in continuously moving water, such as a river or stream, to generate power for producing electricity, for example.

Abstract: An accessory device to be mounted onto the bottom surface of a camera main body in a general configuration having extended portions at both right and left sides of the lens mounting section. The device has a fitting surface to the camera main body, which is substantially same in shape as the bottom surface of the camera main body, and front and rear wall surfaces which are contiguous to the front and rear surfaces of the camera main body and inclined frontward of the camera main body.

Abstract: A photographic system is particularly adapted for use in a check security system and offers novel features and advantages for such systems.Such system includes a film cassette and film cassette holder. The film cassette may be molded from plastic parts and can be adapted for assembly and operation without fasteners. The film cassette forms a light tight enclosure with a first opening to admit an image and expose the film within the enclosure and a second opening to permit operation of a film take-up within the cassette. The system includes shutter means adjacent the image-admitting opening of the cassette that can be operated by an actuator carried by the cassette holder. A second actuator carried by the cassette holder can engage and operate the film take-up of the cassette. The cassette can movably carry elements of the system shutter means and provide reliable film take-up and film guidance within the cassette enclosure.

Abstract: A shock absorbing device for a mirror in a single lens reflex camera having a shock absorbing lever with a stopper portion adapted to set the lower position of the mirror for observing through a view finder of the camera. A first spring provides suitable friction for the lever with respect to a stationary member. A second spring acts on the lever to cause the stopper portion of a mirror holder to stop at a predetermined position against of a mirror lowering force. The first and second springs may be replaced by one compression and torsion coil spring having an adjustable elastic force.

Abstract: A breakwater for breakwater for breaking the force of waves to protect harbors and beaches and generating electrical power from the waves. The breakwater includes a sloped front wall so that the waves break upwardly along the wall. One or more passages extend through the breakwaver to a lower elevation on the harbor side. Paddle wheels or turbines are disposed in said passages. The force of the waves drives water through said passages and the receding water falling down the face of the wall flows through said passages to provide power to drive the paddle wheel or turbine which, in turn, is connected to drive a generator.

Abstract: Hydrocarbon fuel energy is converted to AC electrical energy by a new system utilized to supplement AC power for household and similar limited size loads in synchronism with existing AC utility service via pre-existing wiring between the load and the utility lines. The system has an externally excited commutator AC motor-generator driven by an internal combustion engine to provide AC power at a magnitude which is a function of the drive shaft velocity and degree of excitation. An exciter circuit provides excitation for the motor-generator to cause the generated AC power to be in phase with utility power. A load demand sensor senses current flowing through the wiring to the load, providing a control signal signifying magnitude of the current, thus measuring load power requirements. Control circuitry interconnected with the exciter circuitry and the engine is responsive to the control signal to control excitation for causing the generated supplemental power substantially to meet load requirements.

Abstract: A street lighting luminaire comprising an elongated semi-cylindrical reflector of parabolic cross-section having opposite ends, and paralumens arranged to obtain a luminous beam whose divergent with respect to a plane normal to said axis varies from one to the other end of said reflector to obtain on the street a lightened area of rectangular cross-section.

Abstract: A prefocused mount is disclosed which is hermetically sealed to a plastic reflector for a PAR lamp.

Abstract: In addition to the single combination of a tone generator such as a string with a hammer, a further combination is provided by an auxiliary tone generator such as an elongated thin metal strap and/or an auxiliary hammer preferably accompanied by a mechanism for effecting selective striking contact for tonal vibration between the tone generator or generators and the hammer or hammers when an associated common key is operated. Selectively combined simultaneous striking by the hammer or hammers generates tones of enriched tone color and volume by single key operation.

Abstract: A camera focal plane shutter including longitudinally movable leading and trailing curtains is provided along the transverse border of one of the curtains with a transverse shield element projecting into and terminating along a line disposed in the path of the other curtain and functions to shield the objective lens traversing light obliquely incident in the area of the curtain overlapping portions. The shield element may be a transversely curved strip or loop integrally formed with or clamped to the respective curtain border by an edge defining channel member, or may be an extension of a respective channel member arm or may be a light weight bar bonded to the curtain member proximate its channel member clamped border.

Abstract: The rotor of a generator for automotive internal combustion engine turbo-superchargers is located on the turbine shaft to rotate therewith, at the turbine speeds of between 20,000 rpm to 80,000 rpm, and positioned between the exhaust gas turbine blade unit and the supercharger-compressor blade unit. The rotor, preferably, is a permanent magnet rotor, cooperating with stationery armature structures which may have different, separate windings thereon to supply different networks at independently selected voltages, for example a vehicular battery through a rectifier network and heating elements, in single-phase and three-phase connections, as desired, such as windshield heaters and the like, which can be directly a-c energized. The generator may have an axial air gap and may be cooled by a compressed air bleeder duct formed in the compressor blade unit.

Abstract: A speed-light, or electronic flash, having a support column provided between its light flashing part and its fitting member to be fitted with an accessory shoe of a camera body, wherein an exposure calculator device operable by a guide number is in cylindrical form so as to surround or enclose the support column.