The invention pertains to a rotary grinding mill having a drum which is provided with a lining and at least one lifting device, and relates to an arrangement for registering wear on the lining and particularly on its lifting device. In order to provide an arrangement by means of which it is possible to register when the lifting device of the mill lining has been worn to at least a given, predeterm...

A vehicle tyre, with a carcass (1) and a reinforcement ply (3) arranged between the carcass (1) and the tread strip (2), has an air impermeable layer (4) at the inner side of the tyre which consists of a resilient spray film which is applied to the tyre blank or to the carcass material used to form the tyre blank and which is integrally bonded with the inner wall of the tyre during the curing proc...

The binding for a jumping-ski has a two-part (1,2) front ski-boot sole holder holding the ski boot toe and possessing a base part (1) fixed to the ski. A release part (2) in guides (12,13) on the base part can be released crosswise to the ski lengthwise direction and is held by a mechanism (7-9) in its position of use. The release part consists of a guide jaw (3) with tension piece (4) with guide ...

The magnetic tape is designed to provide a good thermal resistance characteristic with a small thermal shrinkage coefficient. The tape is produced with a base foil of polyethyleneenterephlate that is heat treated before a surface coating is formed. The coating is produced from needle shaped Fe powder combined with vinyl chloride resin, urethane resin, polyisocyanate, butylstearate, cyclohexanon, m...

A control arrangement for internal combustion engines is presented, which outputs a resetting pulse when a microprocessor or a microcomputer does not operate correctly within a predetermined short test period. The cause of the disturbance is immaterial. The safety arrangement triggered for this is only cancelled again when the device operates correctly again over a plurality of test cycles. Such a...

The data card is inserted into a reader that has a carrier (5) that is pivot mounted (4) and is held in the loading position by a spring (10). The carrier has a slot (7) that receives the card (21), which is pushed in against a spring (22) biased slide (20). Once fully inserted, finger pressure (50) can be applied to cause the carrier to turn anti-clockwise about the axis (4) until a lug (40) lat...

A card reader with an input/output slot closed after card insertion has a roller pair (10,11) behind the slot which passes the card to a transport guide and a contact set which connects to card contracts. At least one roller is spring biassed toowards the other and one is coupled (18,19) to a flywheel (17) activated by card insertion. The card is passed inwards by the energy fed to the flywheel. C...

The removal of sticky contaminants and/or ink particles during the production of recycled paper is accomplished utilizing a hydrocyclone (31) froth flotation process. Paper having sticky contaminants from labels, tapes, hot melts, and other tacky substances, and/or print, is reduced to a finely comminuted liquid solids suspension of about 1-4% consistency (preferably over 2%). The suspension is in...

Multi-phase RF ablation employing a two-dimensional or three-dimensional electrode array produces a multitude of currents paths on the surface of the ablation zone. This results in a uniform lesion with a size defined by the span of the electrode array. An orthogonal electrode catheter array suitable for cardiac ablation is used in conjunction with a two-phase RF power source to produce uniform sq...

Spent photographic film having at least a polyester base, blue dye, and a polyvinylidene binder layer, and from which the photographic emulsion has been removed, is treated to recover usable polyester. The spent photographic film is heated in cyclohexanone at a temperature sufficient and for a time sufficient to remove both polyvinylidene and dye compounds from the polyester base. The recovered po...

A safety shield for use in laparoscopic or like electrosurgical procedures where the shield surrounds the active electrode and extends from a trocar or the like to the field of view of the surgical procedure. The shield is connected to the return lead via a low impedance path which includes monitor circuitry for determining whether the shield current is associated with an abnormal condition. The s...

A mixing valve includes a volume control valve (48), a pressure proportioning valve (82), and a thermostatic valve assembly (114, 130) within a single modular housing. The housing is rotatably mounted in a valve body and houses the proportioning valve and the thermostatic control valve. Rotation of the housing controls the total volumetric flow from the supply inlets (14, 16) of the valve plate (4...

The invention relates to a logging method and apparatus for investigating the geometrical characteristics of a borehole. The apparatus comprises an array of circumferentially spaced apart azimuthal current electrodes (Aazi) disposed on a sonde (21), and an annular current electrode (A) longitudinally spaced apart from the array of azimuthal electrodes. Currents (Ici) are emitted between the azimut...

Method for the production of hard PVC foam, where (a) an initial mixture containing PVC, a blowing agent, plasticiser/solvent, stabiliser, a poly or diisocyanate compound, and optionally other additives is produced; (b) the mixture is transferred to a mould and heated under pressure to give a homogeneous material in which the blowing agent decomposes; after which (c) the material may be cooled to ...

A method of manufacturing a fiber reinforced silicone foam is described. An aqueous silicone emulsion that cures upon drying at ambient temperature to an elastomeric film is combined with inorganic fibers having a diameter of less than 25 micrometers and a length of less than 10 mm to form a mixture. Air is dispersed through the mixture to form a stable froth. Removing the water from the stable fr...

The hot-gas cooling plant has a gas outlet line releasably connected between the radiant cooler and the convection cooler. The gas outlet line is curved to extend from an upper region of the radiant cooler to the top end of the convection cooler. Flange connections are used to connect the gas outlet line to the pressure vessels of the coolers. Cooling tubes are also provided within the gas outlet ...

A method for smoothing skip up-shifts in an automated mechanical transmission system (10) without requiring direct sensing of the rotational speed of the engine (14) is provided. The method involves delaying re-engagement of the master clutch (16) after engagement of a selected transmission ratio (E) during a skip up-shift by a period of time (T) directly proportional to the number (N) of ratios s...

Microscopic particles containing a continuous network of pores open to the particle surface are manufactured by suspension polymerization of an ethylene-propylene-diene elastomeric prepolymer containing a water-immiscible liquid. The particles are useful as controlled-release delivery systems for active substances intended for a wide range of uses including topical applications. The spongy charact...