Abstract: This invention relates to an annular rotating roaster. The user may apply a cone-shaped flame separator which has numerous outstanding scales on its inner wall, when making a fire in the roaster. Each of the scales has a perforation beneath. The heat from the burning charcoal goes through the perforations and the scales to the meat. Thus, the meat won't be scorched. In addition, the degree of heat exposure is adjusted by the turning handle. Therefore, tender meat is produced. Moreover, the fat from the hot meat does not drop directly on the burning charcoal. As a result, no smoke or ashes rise, keeping the meat from being contaminated.

Abstract: A method for joining of pipes, especially large concrete pipes, heretofore been a comparatively cumbersome procedure necessitating the use of special tools by means of which a pressure has been exerted on the back end of the pipe to push it towards the last of the previously laid pipes.

Abstract: Disclosed is a combination remote control fishing device comprising a remote control device for carrying a line/float assembly to a desired location in the water, an automatic capstan for line recovering and releasing, and control components for these items. A variable slippage clutch is provided on the capstan which permits high speed retrieval of small or weakened fishes. Clutch slippage permits operation of the capstan motor without damage when a large or very strong fish is struggling on the line during retrieval.

Abstract: A device for protecting a coating on door of automobile wherein an operating mechanism provided on a base plate at reverse surface side of a door of automobile is operated by shifting a rod contacting a body of the automobile simultaneous with start of opening operation of the door, and a protector is operated by interlocking with the operating mechanism, and a protector guarding the surface of the coating of outer edge portion of the opening door is caused to project and to turn around the surface side of the edge portion of the opening door thereby protecting the coating on the edge portion of the opening door from the impact or contact with the adjacent parked car or tree or wall or fence and the like, and the protector turns around the reverse surface side of the door by interlocking with the door closing operation and is accommodated inside of the door, so that the protector is not visible from the outside of the automobile which makes this specially equipped automobile look like ordinary automobile.

Abstract: A steel section 6 to 40 mm thick, emerging from a hot rolling mill at 1000.degree. to 800.degree. C. is surface quenched for 2 to 6 seconds at a cooling rate of the order of 1.5 to 5 MW/m.sup.2. During subsequent self-tempering of the quenched surface by heat from the remainder, the section tends to an equalization temperature of 500.degree. to 700.degree. C.

Abstract: A machine for transversely stretching tubular materials comprises a hollow diverging mandrel and an endless sleeve of a flexible knitted fabric which toroidally embraces the mandrel. In use tubular material to be stretched is driven over the mandrel surface along with the flexible sleeve by friction drive means in the form of endless belts.

Abstract: This invention relates to a method for the refining of palm type oils such as palm oil and other similar natural oils including palm kernel oil, coconut oil, and the like. The method includes adding a small quantity of phosphoric acid to a crude palm type oil, treating said oil with a small quantity of activated clay, and then subjecting said oil to steam refining of 200.degree. to 270.degree. C. with the blowing of superheated steam into the oil under high vacuum after the activated clay has been removed.

Abstract: Method and apparatus for detecting the presence of signal components of predetermined frequency, in multifrequency PCM signal, especially in signalling tones. The incoming signal is multiplied by sine and cosine waveforms representing a particular frequency, for each of the frequencies to be detected, the two sets of multiplicands thus derived are summed. If the sum is greater than a reference value, said particular frequency is present in the incoming signal.

Abstract: A fuel injection system for a compression ignition engine includes pulse length control means which determines the instant and duration of opening of a series of injector valves in accordance with the output of a digital memory unit, empirically programmed to match the specific engine. The memory is addressed by two inputs, one derived from an engine speed transducer and the other derived by combining analogue signals from the speed transducer and from a demand transducer. The system operates without any feedback representing the quantity of fuel injected so that no fuel flow transducers are required.

Abstract: Disclosed is an ion-controlled device for providing an electrical indication of a specific ion concentration in a fluid. An ion-sensitive membrane is placed over the junction of a gate controlled diode whose impedance is being measured. An external reference electrode is biased such that an inversion layer forms in the semiconductor material near the ion-sensitive membrane. Changes in the concentration of the unknown ion in fluid passing over the ion-sensitive membrane will affect the inversion layer in the gate controlled diode. The change in inversion layer will result in measurable changes in the diodes impedance.

Abstract: A combination fuse, especially for fire protection installations. The fuse comprises two metal pieces bonded together by means of a fusible metal which during normal conditions prevents a trip mechanism to be operated. At a temperature above normal ambient temperature the fusible metal loses its bonding effect and permits operation of the trip mechanism. The combination fuse further comprises a heat dissipating means adapted to dissipate heat for raising the temperature of the fusible metal so as to release the combination fuse. The heat dissipation is initiated in response to a signal generated by the sensing of local or remote ambient conditions. The heat dissipating means is an electric resistance element incorporated in a circuit which is electrically separated from the two metal pieces and other components of the fire protection installation. The resistance element is connected in the circuit by members which upon tripping of the combination fuse, i.e.

Abstract: In the hot-machining of metallic workpieces localized heating of the workpiece by a plasma torch is achieved immediately preceeding a cutting tool. Pure argon gas is used as the plasma gas in the heating plasma torch, and the electrical power input to the plasma gas is kept within an operative range up to 10 kilowatts.

Abstract: A method for manufacturing thermometers and a thermometer manufactured according to the method, in which a number of capillary tubes and containers (thermometer balls) are premeasured with regard to inside volume by means of a vacuum measurement instrument, thereafter being stored in groups, each group having a specific inside volume, said capillary tubes and containers for a liquid medium, e.g. mercury, being matched to a thermometer by using containers with a specific inside volume together with capillary pipes of a second specific volume, said first and second volume being precalculated in order to achieve a specific range of temperature and capillary height for any temperature within said range of temperature.

Abstract: A fuel pumping apparatus includes a roller which co-operates with cam lobes formed on the internal periphery of the cam ring to effect inward movement of a pumping plunger. The maximum outward movement of the pumping plunger is determined by stop members positioned to engage with the opposite ends of the roller. One of the stop members comprises a continuous ring having a contoured in a surface but the other stop member comprises a plurality of links which are pivotally mounted and the setting of which can be varied to determine the maximum effective outward movement of the plunger and thereby the maximum amount of fuel which can be supplied.

Abstract: A bar feed mechanism for a lathe comprising a pair of bar feed devices spaced lengthwise of the bar feed path, and switches adjacent the devices respectively to sense the presence or absence of bar, the bar feed devices being alternatively operable to feed the bar through the lathe and being arranged only to feed the bar if a section of bar spaced from an end thereof is situated in a position to be fed.

Abstract: When measuring the velocity of fluid flow by measuring the voltage produced by magnetic induction applied to the fluid, measurement is affected by the electrochemical potential developed at the electrodes. This may be compensated by storing the total signal produced with a first value of the induction and subtracting this stored signal from the total signal produced at a second value of the induction so that the electrochemical potential cancels out.

Abstract: A method of manufacturing stator assemblies for dynamo electric machines in which the stator assemblies are of the kind including a hollow cylindrical yoke carrying a pole member on its inner surface comprising starting with a pole member having upstanding therefrom an integral spigot, and a yoke member, the wall of which includes a through bore of larger diameter than the spigot, performing a deforming operation on the yoke at the outer end of the bore to enlarge the diameter of the outer end of the bore and at the same time reduce the diameter of the bore intermediate its ends. The intermediate diameter of the bore is reduced to that of the spigot, and the spigot is then inserted through the bore from the inner end thereof so that the pole member lies against the inner surface of the yoke. The free end of the spigot is then deformed to produce a rivet head occupying the outer, enlarged region of the bore, and thus secure the pole member to the yoke.