Abstract: An apparatus for use in separation and recovery of pieces of different materials according to the difference in electric conductivity of each kind of materials, by utilizing the interaction between a magnetic field, induced by the eddy current and an external magnetic field. The separating capability of the apparatus of the type is largely dependent upon the shape of pieces being separated as well as the difference in electric conductivity between the pieces of different materials. According to the apparatus of the present invention, samples to be separated are rolled into a flat shape, then subjected to the screening, followed by their passing through a plurality of rotating magnetic fields whose intensities are being increased one by one, whereby the sample pieces are separated effectively according to their electric conductivity, and thus recovered.

Abstract: The disclosure relates to an overload protection apparatus for hoisting machine such as rope hoists or chain blocks. The apparatus has a slipping gear unit and a ratchet gear unit which are arranged on a shaft in a reduction gear assembly. The ratchet gear unit is adapted to be applied with a torque only when the hoisting machine is lowering the load, so as to impart an additional functional force to the slipping gear unit during a braking.

Abstract: Electric pulses are counted, and are converted into an electric signal proportional to the number of the counted pulses. An electron beam for irradiating a sample is deflected in response to the electric signal. The counting can be voluntarily stopped with a switch.

Abstract: A retarder roller for limiting the speed of a free running load on an inclined conveyor. The roller comprises a stator and a rotor rotatable mounted on the stator and forming a housing for the stator. The housing is filled with silicone putty. The stator and housing are provided with vanes for cutting through and displacing the putty as the housing is rotated.

Abstract: Sulfur dioxide (SO.sub.2) and oxides of nitrogen (NO.sub.x) are effectively and economically removed from a gaseous combustion products stream by photochemical conversion of the gaseous SO.sub.2 and NO.sub.x components into particulates (aerosols and mists). The reactive hydrocarbon (RHC) and oxygen deficient fossil fuel combustion products can be converted into a highly photochemically reactive RHC,SO.sub.2,NO.sub.x (NO,NO.sub.2),O.sub.2,H.sub.2 O gaseous mixture by the introduction of sufficient quantities of a reactive hydrocarbon, such as an olefin, and oxygen or oxygen containing air. The reactant mixture is then irradiated with electromagnetic waves of the 1,500A to 7,500A band of the spectrum, which irradiation is followed by ammonia injection, if desired, to promote particulate formation.

Abstract: An electromobile equipped with an automatic transmission which may detect a running condition of a vehicle and selects a gear ratio suited for the running condition. In this electromobile, a build-up characteristic of an electric motor current immediately after gear-change is improved, thereby minimizing delay in power transmission so as to shorten a gear-changing duration, in an attempt to improve an operational feeding of a driver at the time of gear change.

Abstract: The shaft of the tennis racket is split between the handle and the head into two basic parts, so that a first part cantilevered from the grip supports the head, preferably with a journal, at its inner end while the second part supports the head at its outer end, preferably with a journal. The two shaft parts are unconnected so that they will flex independently of each other to maintain the head generally parallel with the axis of the grip independently of the force or positioning of the ball on the strings of the head. The shaft part that is connected between the grip and the outer end of the head is removable or displacable from the head to allow stringing of the head, and reassembly to overlie and protect the string holes along the side of the head.

Abstract: A hydrogen generating apparatus comprising a cell having a plurality of chambers defined in the cell by cation exchange membranes and anion exchange membranes arranged alternately, a high concentration electrolyte and a low concentration electrolyte being filled alternately in said plurality of chambers, and a pair of electrodes guided into the chambers disposed on both the ends of said cell, respectively, and the open circuit voltage between said electrodes being higher than the decomposition voltage of water.

Abstract: A gravity undriven roller conveyor is provided with speed control so as to maintain articles travelling thereon within a narrow speed range generally independent of the length of the conveyor, the starting speed of the article, and the load of the conveyor by providing an elastomeric tired wheel on a bracket beneath the cylindrical rolls of a conveyor so as to engage two adjacent cylindrical rolls and absorb kinetic energy through hysteresis properties of the material of the elastomeric tire on the wheel. Vertical adjustment is provided with a rigid screw mounting or a biased spring mounting, and flanges radially overlapping the tire are provided on the wheel so as to limit the compression of the tire through such vertical adjustment to within the elastic limit of the elastomeric material.

Abstract: A reed type relay comprises a frame forming a cavity and having coil terminals. A bobbin assembly containing a coil is mounted in the cavity, this assembly having a flange at each end. A pair of magnetic poles energized by a permanent magnet as well as by the coil is pressed into one of these flanges and the base end of a reed is pressed into the other. This reed is elongated and extends along the bobbin assembly with its tip located between the poles so as to be movable into engagement with each of them.

Abstract: A continuous casting machine comprising a tundish for pouring molten metal to be cast into a mould, a mould for cooling the supplied molten metal into a billet in a semi-solidified state to be withdrawn downward, and a cooling guide provided immediately beneath the mould and promoting the cooling of the billet emerging from the mould, said cooling guide consisting of cooling guide blocks each urged against each corner of the billet via a spring and having cooling medium intervening between each block and corresponding billet corner.

Abstract: A thermal energy storage tank charged with a phase changeable thermal energy storage material produces a partial pressure variation due to the flow of a heat transfer medium, when passing through the thermal energy storage material. An attempt is made to provide the uniform phase changeable of the thermal energy storage material by passing the heat transfer medium therethrough, over the throughout of the thermal energy storage material, by providing a variety to the flow direction of the heat transfer medium. For instance, according to the achievement of uniform flow of heat transfer medium in the vertical direction, there may be attained uniform phase changeable both in an upper portion and in a lower portion of the thermal energy storage material.

Abstract: The invention relates to a flank drive for propelling a boat wherein a plurality of propeller housings are rotatably mounted in a wheel body about and in driving engagement with a normally stationary guide wheel centrally of the wheel body, which wheel body is rotated about its own central axis by means of a propulsion motor to carry the housings about the wheel body axis and rotate the housings about their own axes, so that the propeller housings undergo epicyclic motion.The propeller blade in each propeller housing can be adjusted relative to its housing passively by relative motion between abuttments or positively by means of an automatic hydraulic control to the most effective angle of attack, whereby the blades mainly exert flank force to the surrounding water. The guide wheel may be swivelled to steer the boat.

Abstract: In builders scaffolding of the kind wherein cross-members are detachably connected to upright members by connecting means comprising a plurality of open-ended vertically disposed sockets on the upright member and connector means on the cross-members each comprising a pair of vertically spaced limbs adapted to embrace a selected socket member, with a wedge clamping member driven through aligned openings in the limbs of the connector member and through the socket to press the end faces of the limbs into engagement with the upright member, an improved connector member in which the two limbs are spaced apart by a distance sufficient to receive a socket therebetween with only a small clearance, at least the upper limb affording a cavity at its underside to accommodate a retaining formation which is provided on the lowermost end of the wedge clamping member so that the latter may be raised to a releasing position in which its lowermost end is clear of the space between the two limbs.

Abstract: A thermal decomposition process and apparatus of the fluidized bed type for organic solid materials, particularly organic solid waste material contained in urban rubbish comprising a fluidized bed thermal decomposition furnace, the interior of which is divided by a partition plate into two zones, namely a first zone for thermally decomposing the organic solid waste material in the absence of oxygen and a second zone mainly for burning the carbonized material produced as a result of thermal decomposition of the organic solid waste material. Non-condensable components of the gas resulting from the thermal decomposition of the organic solid waste material are recirculated as fluidizing gas into the first zone, while air is used as the fluidizing gas for the second zone. Heat for the thermal decomposition in the first zone is obtained from the combustion in the second zone and transferred by the intertransfer of fluidized solids between zones beneath the partition plate.

Abstract: A height adjustable swimming pool diving tower comprising a well-like foundation, a diving board, a central support column partially accommodated and guided in the foundation shaft and carrying the dive board, and a hydraulic stroke device for lifting or lowering the column together with the dive board and arranged on the bottom of the foundation shaft and in a recess in the central column, the foundation, column, and diving board consisting of concrete or reinforced concrete and the guiding being performed by means of a number of guides situated in the foundation walls in at least two planes above one another.

Abstract: A cobalt base alloy consisting essentially of, in weight percent, about 0.1% to about 0.5% carbon, about 0.3% to about 2.0% silicon, about 0.3% to about 2.0% manganese, about 5.0% to about 15.0% nickel, about 26.0% to about 35.0% chromium, about 3.0% to about 10.0% tungsten, about 0.003% to about 0.1% boron, about 0.01% to about 1.0% titanium, about 0.01% to about 1.0% niobium and optionally about 0.05% to about 1.0% mischmetal and the balance being essentially cobalt together with impurities and incidental elements normally associated with a cobalt base alloy, which has high strength and high ductility even at high temperatures and is especially suitable as a material to be used at high temperatures under high thermal stress, such as a material for a nozzle of a gas turbine engine.

Abstract: A scaling device for weighing load applied on an elevator car floor to prevent overloading operated by detecting the amount of deformation of rubber insulators mounted under the car floor.Load detecting beams are provided under the car floor to detect the deformation of the rubber insulators, and each end of the load detecting beams is loosely jointed to an opposite side of the car floor.When the rubber insulators deform by the load applied on the floor, the load detecting means subside in conformity to the deformation of the rubber insulators and a load detecting switch mounted below the car floor is switched on by the subsidence of the load detecting beams as the load exceeds the rated load, thereby to stop the operation of the car.

Abstract: A daisy capitulum type of chrysanthemum plant which is a sport of the cultivar Sophisticate, disclosed in U.S. Plant Pat. No. 3,944, and which is distinguished from the parent cultivar by its medium yellow ray floret color.

Abstract: A spider capitulum type of chrysanthemum which is a sport of the cultivar Jade, disclosed in pending application Ser. No. 712,192, (now U.S. Plant Pat. No. 4,123) and which is distinguished from the parent cultivar by its medium yellow ray floret color.