Drum-type winder for winding webs (5) of material, especially webs of paper, with two drums that the reels rest against while being wound. The winder has a freely rotating attenuating roller (12) that extends across the operating width, that can be applied more or less horizontally to the reels (4.1 \A 4.2), and that can be forced away from the reels in opposition to an adjustable force.

A process for producing cast unsaturated thermosetting resins which are highly stain resistant is disclosed. A pressurization step is applied to the thermosetting resin prior to casting to reincorporate any volatilized monomer which has volatilized during a previous deaeration step. The resultant casting is non-porous in cross-section which produces a product which is both stain resistant and mach...

PCT No. PCT/GB90/01102 Sec. 371 Date Jan. 23, 1992 Sec. 102(e) Date Jan. 23, 1992 PCT Filed Jul. 18, 1990 PCT Pub. No. WO91/01267 PCT Pub. Date Feb. 7, 1991.The electronics industry demands that hydrogen peroxide for use therein be purified to very low levels of impurities, currently at the level of a few ppb for some impurities, or even lower. However, existing methods are either inherently unsaf...

The present invention relates to an arrangement for suspension of a baking furnace (19) for continuous production of carbon electrodes in direct connection with the smelting furnace (2) wherein the electrodes are consumed. The baking furnace is suspended from a baking furnace frame (15) by means of at least three rails (16), said rails (16) being connected to the baking furnace frame (15) at their...

Each of the sections of the system can have a recessed end to accommodate and engage with a similar adjacent end of the section next to it. The ends of each section of the system are provided with interlock plates (7,12) for connecting together the adjacent sections. Each interlock plate is attached to its respective section and has an extending vertical edge which is bent into a "U" shaped cross-...

The invention relates to a process and an arrangement for the treatment of drums containing liquid waste. The process is characterised in that the drums to be treated are pierced and compressed in a single operation, in that the compressed drums are recovered with a view to their recycling, and in that the liquid waste they contained is collected. Application to treatment of waste in drums.

A flat-field television image having reduced visibility of horizontal scan lines is generated by receiving first and second fields of interlaced video and progressively generating a scanned image within a time for one incoming field. The progressive scanned image is formed from "real" and interpolated lines of luminance. In this arrangement the interpolated line is formed by weighting samples from...

ELECTRICAL MAKE/BREAK INTERCONNECT HAVING HIGH TRACE DENSITY A pressure make/break interconnect for two sets of coplanar| parallel traces (30 and 46) includes contact pads (50 and 52) on the ends of the one or both sets of traces (30 and 46), the pads (50 and 52) being wider than the spaces between the traces (30 and 46) but staggered so that there is room for the pads (50 and 52) to fit between t...

A guide wire comprises a main shaft which has a tapered distal end with an anchor formed at the tip of the distal end. A ball-shaped abutment is formed over the anchor at the distal end of the guide wire to limit movement of an over-the-wire catheter past the abutment. The portion of the main shaft immediately proximal to the abutment is flattened into a ribbon to bias bending of the guide wire's ...

Parisons (1), formed by extruding plastics material through an annular gap partially defined by a mandrel (4) and blocks (17), have portion(s) of constant wall thickness controlled by longitudinal movement of the mandrel and portion(s) of increased wall thickness controlled by transverse movement of the movable blocks. Thickness is controlled by storing signals indicative of the gap width in depen...

A process for depositing an oxide layer on a substrate by exposing the substrate to a selected vapor phase reactant, a chosen oxygen-containing precursor, and a selected physical quenching gas, in the presence of radiation of a selected wavelength. The radiation causes the direct dissociation of the oxygen-containing precursor to form neutral oxygen atoms in an excited electronic state. The quench...

A spring in the form of a strip of fibre-reinforced plastics material, of zig-zag configuration having limbs connected by reflex portions with the longitudinal centre line of the strip lying substantially in a single plane, is secured to another component by a mounting affording a socket in which a limb portion of the spring is held. Such limb portion may extend longitudinally or tranversely of th...

The axle drive comprises a propeller shaft (7), two viscous couplings (21), and switching devices (50, 51, 52, 53, 54, 55; 66, 67, 72, 73, 74, 75) operable to connect or disconnect the outputs of the couplings from roar wheels of the vehicle. During anti-lock braking control the outputs are disconnected to prevent the axles from influencing each other during braking. The switching devices are coup...

A current switch S1' is connected on the high potential side of a load 14' and an over-current detection circuit 24' cooperates with the current switch S1' to turn the switch off on detection of an overcurrent. The switch comprises a multi-cellular device such as an FET or bipolar transistor, having a main current terminal (18, Figs 2A and 6) connected to a source of high potential, a main current...

In a frostless (frost-free) refrigerator having a thermal insulation cabinet 11 and a compressor refrigerating unit in which the condensor 18, consisting of a plate of sheet metal covered with tubes forms the external coating of the bottom of the cabinet, equipped on its internal face with ventilating ducts, the plate of sheet metal, at least in the area of the largest ventilation duct 19, is not ...

A heat exchanger, especially a heating heat exchanger in the engine cooling circuit of a motor vehicle is disclosed. A forward-flow pipe opens at the top into a water box. A vent line of small cross-section is assigned to the forward-flow pipe and is guided to a compensating tank and there terminates below the liquid level. In order to obtain a simply constructed and at the same time highly effect...

In ceramic welding processes, oxidising gas and a mixture of refractory and fuel powders are projected against a surface and the fuel is burnt to generate sufficient heat that the refractory powder becomes at least partially melted or softened and a cohesive refractory mass is progressively built up against that surface. In order to reduce any tendency for the weld mass to include a low-grade refr...

Novel catalyst compositions, characterized in that they are based upon   a) a palladium compound,   b) a non-noble transition metal salt of an acid with a pKa of less than 2, provided that the acid is not a hydrohalogenic acid, or a mixture of such a salt and such an acid,   c) a bidentate ligand of the general formula R<1>R<2>-M-R-M-R<3>R<4>, wherein M represents phosphorus, arsenic or antim...

Transition metal-poly-phosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-poly-phosphite ligand complex compositions.

A hollow fiber reinforced structure (10) having irregular cross-sections, curvatures (14), joints (12) and twists is provided. A method of forming the structure includes placing fibrous material on the walls of an outer mold and placing a bladder internal to the fibrous material, which serves as an inner mold. When the mold is closed and the bladder expanded, resin is injected into the fibrous mat...