A grid-shaped carrier is proposed which is used for fixing the electro-chemically active material of lead-acid accumulators and is composed of a grid-shaped current conductor, which preferably consists of a lead alloy, and of a separator which rests directly on a large area of this current conductor and is mounted using plastic sections. The plastic sections are anchored on the grid structure of t...

A pneumatic yarn splicing device comprises a bracket, a yarn splicing member mounted on the bracket and having a pair of side faces and a yarn splicing hole extending transversely between the side faces, the yarn splicing member including an air ejection nozzle for ejecting a compressed air flow into the yarn splicing hole, and a pair of yarn presser levers pivotably mounted with respect to the br...

A method and apparatus for use in the manufacture of pneumatic tires, in which a pair of tire bead assemblies are held in accurately spaced relationship against opposite ends of a tube. Tire carcass material carried on an expansible former is located within the tube and expanded to engage the bead assemblies, projecting ends of the carcass material being turned radially outwardly around the bead a...

A method of forming a hydrophlic coating on a substrate comprised of applying a hydrophilic copolymer capable of chemically reacting with a coupling agent which will promote adhesion to the substrate. A polyisocyanate coupling agent is applied to the surface from a solvent solution followed by applying the hydrophilic copolymer from solvent solution. In certain instances, the copolymer and isocyan...

A visually guided vehicle 1, such as a fork-lift truck, has a camera tube 3, such as an industrial television camera, and a controller 5 for controlling the automatic running apparatus 4 of the vehicle. Two reflectors M1 and M2 are disposed in front of the camera tube 3 so that the camera tube 3 may receive light from remote A and near B visual fields. A guide belt (2) laid on floor for guiding th...

The resectoscope according to the invention is distinguished by the fact that a knife rotating at a high speed and having a closed shape (circular, elliptical) is provided. Quick transurethral resection even over a large area, for example of the prostate, is possible with the new resectoscope without any diathermic current.

Articles having increased fire-retardant properties are obtained by surrounding a foraminous core having the desired product properties with an adherent protective layer of a hydrophilic polyurethane foam having large amounts of fire-retardant fillers. The core can be made of rigid, semi-rigid or flexible foams. Preferable cores include conventional bedding and cushioning materials. The protective...

A running vehicle having control means for judging whether an obstacle detected by a non-contact type obstacle sensor on a front portion of its body is at rest or in motion based on the result of detection and controlling the vehicle body so as to cause the body to detour the obstacle when it is at rest or to automatically stop the vehicle body when the obstacle is in motion.

Adhesive tape useful in supporting an array of parallel optical fibers in an optical transmission cable comprising an adhesive-covered biaxially oriented polyethylene terephthalate film having defined ranges for the proportion of gauche and trans conformations of the ethylene glycol linkages of the polyethylene terephthalate molecule, as measured by infrared spectroscopy, whereby extreme dimension...

A multifilament yarn of an aromatic polyamide, in particular poly-p-phenylene terephthalamide, is provided with an adhesive coating of a cured epoxy compound, the yarn having a free epoxide content not higher than 10 mmoles/kg. The yarn is made by spinning a solution of an aromatic polyamide into a coagulation bath and subjecting the resulting filaments to the subsequent steps of washing, applying...

A multifilament yarn of an aromatic polyamide, in particular poly-p-phenylene terephthalamide, is provided with an adhesive coating of a cured epoxy compound, the yarn having a free epoxide content not higher than 10 mmoles/kg. The yarn is made by spinning a solution of an aromatic polyamide into a coagulation bath and subjecting the resulting filaments to the subsequent steps of washing, applying...

A dry mortar mix comprises a mixture of one or more hydraulic binders and quartz sand in a weight ratio of from 1:2 to 1:4 and, based in each case on 100 parts, by weight, of this mixture: from 10 to 30 parts, by weight, of one or more natural and/or synthetic elastomers in the form of chips, filaments and/or bristles having an average diameter of from 0.5 to 3 mm and an average length of from 0.5...

The invention relates to an incident flow unit for a fluidised bed reactor, in which a central channel for conducting the decomposable gases and an annular channel, coaxial with the central channel, for conducting the carrier gases are provided. With laminar flow, the decomposable gases are laterally sheathed by the carrier gas stream emerging from the annular channel, so that the formation of dep...

A grinding machine for grinding the rake face of helical-fluted tools, in particular tooth-profile hobbing cutters, contains a machine table which is mounted in a longitudinally displaceable manner on a machine frame and carries a bearing and drive device for the tool to be ground. In addition, a rest is displaceably mounted on the machine frame transversely to the longitudinal axis of the tool. T...

In a double clutch transmission, especially for a motor vehicle, it is necessary for the completely satisfactory shifting sequence to engage and disengage the clutches alternately; in order that such a sequence is assured, differential pressure switches are provided which include a signalling device that indicates end positions of the clutches to an electronic control installation for evaluation p...

A workpiece having a generally cylindrical outer surface centered on an axis is machined by first closing a pair of journal halves having generally semicylindrical inner surfaces of slightly greater diameter than the outer workpiece surface around the workpiece. Then a fluid is pumped under superatmospheric pressure into the space between the journal inner surface and the workpiece outer surface s...

The invention relates to a cylindrical rack for controlling hydraulic brakes capable of double self-adjustment with an automatic sensor for brake lining wear. A single component combines the function of the double self-adjustability of the application cylinder for the brake shoes and the formation of the straight rack in order to control and simultaneously support calibration when braking and...

The product according to the invention is a non-woven sheet-like structure composed of yarn sets for outer clothing of fabric-like character. The sheet-like textile structure is obtained in that, between the yarn systems of the cross-yarn laying and the yarn set, by means of a known multiple needle-felting machine working at 100 to 500 insertion points per cm<2>, in the stitching direction of the ...

The invention provides a novel and improved method for the preparation of a cellular foamed body of a vinyl chloride-based resin having a very fine and uniform cellular structure with high productivity in a continuous process. According to the inventive method, a vinyl chloride-based resin is admixed with a nucleating agent and a foam conditioning resin which is a specified acrylic resin or a styr...