Abstract: An optical fiber which has just been drawn from an optical preform is provided with two external hermetic coatings. The primary coating is a metallic or dielectric coating provided by, for example, using a heterogeneous nucleation thermochemical deposition (HNTD) technique. This technique involves passing the fiber through a reaction zone which contains a gaseous medium that includes a reactant which decomposes, or a mixture of reactants which chemically react, at a predetermined temperature, to form the material of the coating. Such predetermined temperature is available from the heat of the fiber forming process which is retained at the fiber surface by means of a shielding element so that additional heating means is not required. The second coating may be deposited, by for example, using an HNTD or a chemical vapor deposition process. The resulting fiber may then be provided with an additional polymer coating layer.

Abstract: An apparatus for supporting a pipe or similar article includes a bottom skid member which has a relatively flat central bottom surface surrounded by an upwardly extending arcuate surface to form a saucer-like configuration.Positioned on the top of the skid member and above the flat section is an extending cylindrical pedestal member. The pedestal has a central slot into which is inserted a corresponding channel. Various devices can be directly coupled to the channel such as pipe clamps for securing the pipe to the skid and pedestal structure as well as a vertical post which has secured thereto pipe clamping means for supporting the pipe at a given distance above the top surface of the pedestal.

Abstract: An improved low loss fused biconical taper fiber optic coupler has a biconical taper region where the fibers are fused together and have a deformed zone at their minimum taper region. The deformation of the fibers is in the shape of a ball.

Abstract: A cable is described which has improved flame/fire and oil/abrasion resistant properties. The cable is halogen free since the conductor insulation and all sheaths are of the self-extinguishing type. A metal screen braided at an angle between 35.degree. and 45.degree. formed between the individual wires and a plane at right angles to the cable axis over a vulcanized filler sheath provides protection of the cable conductors during fires. Outermost there is placed a thin oil and abrasion resistant extruded layer of nylon.

Abstract: A pump impeller to be used when pumping liquid containing solid bodies. The impeller is provided with one single vane designed with a hollow for balancing the impeller. The hollow is connected to the surroundings via a slot at a point where the vane has its maximum diameter. The impeller is then perfectly balanced when rotating in liquid as well as in air.

Abstract: The invention concerns a seal device comprising a rotating and a non rotating seal ring, a so-called mechanical seal.The rotating (2) and non rotating (3) rings are pressed towards each other by an elastic socket (4) surrounding the shaft (1).

Abstract: A mechanical seal device includes a seal ring arranged non-rotatably in a cup which is locked against a shoulder on a shaft. The cup contains a ring of a flexible material which axially supports the seal ring. The flexible material ring is provided with a collar situated between the seal ring and the shaft, thus sealing the space and centering the seal ring on the shaft.

Abstract: A tray loading apparatus includes an inclined support having a displaceable front part so that the front wall of a tray can be brought into abutment with the front end of a stack carried by the support and to be loaded in the tray after a backing plate supporting the stack front end has been removed. The stacking apparatus includes a conveyor able to apply the front portion of each envelope conveyed in a direction making an angle with the above backing plate against this backing plate and a belt arrangement operating on the front portion of each envelope to cant the rear part of the envelope into engagement with a deflector after the front portion has been applied against the backing plate.

Abstract: This invention relates to continuous manufacturing of insulated wire and conductor, and in particular to heating cables having "cold ends". A process is described by which predetermined lengths of resistance conductor (4) and of cold end conductor (9) are continuously and alternatively jointed together. After insulation and provision of additional protective sheats the continuous composite conductor is cut into cold end heating cables. A conductor jointing process is described.

Abstract: A method of manufacturing thin film dielectric material by directing vapors of reactants containing lead and additional metals and an oxidizing gas onto a heated substrate to form a layer of dielectric material thereon, which layer can be of a high dielectric constant (greater than 5000).

Abstract: A device for coating optical fibers with at least two coatings. The device comprises a holding block and at least three coating dies. The holding block has an outer surface with first and second ends, and an inner surface defining a channel extending from the first end to the second end. The coating dies are press fit into the channel, separated by resin chambers. The holding block is further provided with passages providing fluid communication between the resin chambers and the outer surfaces of the holding block.

Abstract: At least one metallic element is incorporated into a cable during the manufacture of optical fiber cables, along with one or more elongated optical fibers. Such metallic element with its insulation is similar in diameter to an optical fiber with its sheath. The electrical resistance of the metallic element varies very little with temperature, but does vary with strain. Hence, by monitoring the resistance of the metallic element, the strain to which the fibers are subjected can also be monitored.

Abstract: Floor-sweeping machine consisting of a housing with a revolving brush mounted rotatably therein and having pinions which are provided at its two ends and which are themselves each connected operatively by engagement to a pair of running drive wheels, the two running drive wheels belonging to a particular pinion being mounted rotatably in a wheel case and the wheel cases being mounted in appropriate housing receptacles so as to be vertically displaceable for adjusting the height of the revolving brush mounted fixedly in the housing, wherein, for a permanent adjustment of the height of the revolving brush without impairing the drive of the revolving brush by the running wheels, each wheel case (26) is retained by means of a wheel-case holder (38) to swing on one leg (44) of a U-shaped adjusting shackle (45), and the U-shaped adjusting shackle (45) is mounted pivotably in appropriate bearings (55) of the housing (11) by means of angled portions (54), shaped on the free ends of the legs (44), and an adjustable we

Abstract: Electrical resistance heating element including a number of metal strips arranged in a meander-like pattern. In the resistance metal strips, which are made from a non-expensive base sheet material like lead, there is incorporated at least one fuse which will operate if the heat transfer from a randomly placed area of critical size (a critical area) is substantially blocked. The fuse or fuses are preferably constituted by a lead/tin alloy rolled into intimate contact with the lead base material.

Abstract: A laundry handling machine for performing both a washing operation and a drying operation includes a blower which directs air over the motor during both the washing and drying operations to cool the motor and additionally directs air over a heating element during the drying operation to provide heated air through the vat. A rotational speed reduction arrangement is provided for controlling the timing of both of the operations. A drying operation timing device is driven by the washing operation timing device. A rinsing device is coupled with a supply conduct for a rinsing liquid and also with a siphon drain tube which has a larger cross-section than the supply conduct.

Abstract: The invention concerns a method and a device for lifting and lowering of a load. The load is provided with a short lifting chain which in its turn is connected to a guiding wire. A lifting hook connected to a lifting device is arranged to be guided along the guiding wire to the lifting chain.When the guiding wire is slacked the lifting chain will engage a slot in the lifting hook and the load can be lifted up.

Abstract: Solid electrolytic capacitors are made in a batch process by etching a tantalum foil to form a number of rows of teeth, screen-printing tantalum powder ink onto the teeth, processing the sheet through sintering, anodizing and manganesing stages, sequentially encapsulating opposite edges of the rows of teeth in conductive epoxy and the "gap" with insulating epoxy and separating the individual capacitors from the rows.

Abstract: A device for transporting lubricant to the mechanical sealds in a submersible machine includes a funnel shaped guide means arranged on a rotating shaft in an oil room. Oil will be sucked in at the small end of the guide means and flow out at its big end thus obtaining a transport of oil.