PCT No. PCT/GB93/01259 Sec. 371 Date Feb. 23, 1995 Sec. 102(e) Date Feb. 23, 1995 PCT Filed Jun. 17, 1993 PCT Pub. No. WO94/00278 PCT Pub. Date Jan. 6, 1994An apparatus for shaping perforations of sheet material which comprises a first mold structure at one side of the sheet material and a complementary mold structure at the other side of the sheet material to cooperate with the first mold structu...

A method of degassing and decarburizing molten stainless steel in a vacuum, which molten steel is produced in a steel making furnace. Molten steel is foamed in a vacuum tank. Before foaming the [N](%) in the molten steel is increased. The foam is produced by denitrification of the steel during vacuum degassing. Oxidizing gas is blown through a top-blow lance onto the surface of the steel in a vacu...

The winding machine winds a web (3) onto a drum (25, 17) to produce a wound roll (43'), against which there is a pressing roll (9), leaving a winding gap. The web only runs over the lower region of the pressing roll to the gap. By means of a transporting device (19), a new empty drum (17) can be taken from a drum magazine (11) and put in position from below. The transporting device extends thro...

The device has a cutting edge (51), which is pressed through the moving foil material (20) in a rolling or slicing motion. The cutting edge is formed by the free edge section of a knife blade. A pressure member is pressed against the blade and moved along it, to cut through the foil. The foil moves between an anvil and the knife blade, and is fixed in position by under pressure. An elastically com...

The invention refers to a gas-tight, maintenance-free high capacity lead accumulator with a sulphuric acid thixotrope (13) as electrolyte. To ensure operatability of the accumulator in upright as well as in horizontal position, the liquid electrolyte released under certain charging conditions has to be collected. For this purpose layers of fibrous web (10, 22) of highly porous and absorbing materi...

There are many natural pauses during rotary drilling operations where a portion of the drill string remains stationary. Pauses include drill pipe connections, circulating time, and fishing operations. These pauses are used to obtain formation evaluation measurements that take a long time or that benefit from a quiet environment, as opposed to the naturally noisy drilling environment. Various techn...

In order to provide a tire tube excellent in sealing performance and durability, in a tire tube in which the inside of a peripheral wall (4) having an approximately circular cross-section is partitioned by a partition wall(5) into an outer peripheral side sealant chamber(7)and an inner peripheral side air chamber(3)and the sealant chamber (7) is filled with a sealant(8), it is proposed that the th...

A composite card reader (11) used for IC cards, magnetic cards and the like to which the card is manually inserted and extracted is dislosed. The composite type card reader (11) has a shutter lever (28) for opening and closing a card inlet (13), a locking mechanism for locking the card by closing the shutter lever (28), and a lock releasing mechanism for releasing the lock by opening the shutter l...

A flame-retardant composition useful in rendering polymers flame-retardant by copolymerizing with the starting monomers, which composition comprises a halogenated, phosphorus-containing polyester obtainable by reacting a polyhydroxyphosphonic compound (A) with a halogenated polycarboxylic compound (B) in such a ratio as to provide two or more hydroxyl groups in the resulting polyester, optionally ...

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...

Two unique quick connect fluid coupling embodiments have a tube inner end (36) which does not contact a seal (42, 44) if the tube (22) is not fully connected. Preferably, a retainer retains the tube (22) within the bore of a housing (24). The retainer (30) is of the avalanche type such that a high force is required to insert the tube (22), and once this high force is overcome the momentum of the t...

The device includes an illumination device which has continuously illuminated white light lamps (28). A video camera (10) has a needle-eye lens (12) which is aligned directly with the object (34) under test through a small opening (16) in a diffusion plate (14). The image is compared with a reference image in a computer.

Rigid polyurethane foams having low thermal conductivity values are produced by reacting an organic polyisocyanate with an organic material having at least two isocyanate reactive hydrogen atoms and an OH value of from about 200 to about 650 in the presence of a blowing agent. The blowing agent is a mixture which includes dichlorofluoroethane (HCFC-141b) and greater than 1.0% by weight (based on t...

The electro-chemical sensor comprises a substrate (1) supporting two current conducting bands (4,5) of width L & L'. The facing edges of these two bands (4a,5a) are isolated from each other by a space of width delta. A covering film (2) comprising a connection window and a measurement window lies over the conduction bands. The film includes two openings (12,13) separated by a portion (14) which de...

Body lumens such as blood vessels are selectively occluded by mechanically collapsing the blood vessel and subsequently applying energy or other occlusive conditions within or adjacent the collapsed region. For example, vessel collapsing mechanisms can include spreadable opposed elements, reciprocating jaw mechanisms having penetrating elements, and devices for applying negative pressure to collap...

A test strip is provided for having liquid applied thereto and for determining the presence or quantity of an analyte in such liquid. Specifically, the test strip comprises a reaction zone which varies in reflectance as a function of the quantity of analtye present in the applied liquid. The strip is to be inserted into an optical reading apparatus. A standard zone is positioned on the strip so as...

A photomask used by photolithography and a process for producing same which allows a single exposure to make a photomask, thereby simplifying the photomask making process, and facilitating the inspection and correction of photomasks. In addition, the phase shifter using a slanting pattern prevents a pattern from being formed outside a predetermined area. The use of a phase shifter which does not r...

A method of and arrangement for processing point-of-sale products include printing a label containing information such as weight and price obtained from the data base of a host computer on a real-time basis. The label is applied to a product electro-optically identified by a scanner.

A rubber-rubber bonded composite structure is made up of one unvulcanized preform formed from a rubber comprising hydrogenated acrylonitrile-butadiene rubber, either a combination of methacrylic acid and zinc oxide or zinc methacrylate, and an organic peroxide and another unvulcanized preform formed from a rubber composition containing a rubber in common use, both preforms having been laminated to...

Process for the manufacture of a polymeric object starting from a solution of a polymer in a solvent and comprising drawing a solvent-containing polymeric object, the solvent containing a first and a second component, the first component being more volatile than the second one and drawing being effected in the presence of the second component after removal of the first component and a solution of ...