Prodn. of spiked tyres by (a) making a laminar structure of an elastomer (1) band partic. rubber, a separator film (3) that will not stick to the rubber when it is vulcanised and a second elastomer (2) band; (b) force into the first band on the surface opposite the separator film collars (6) into which are removably fitted spikes (7) for spiked tyres; (c) place the whole laminar structure onto the...

An improved disposable blood processing centrifuge bowl is described comprising a rotary seal (28) enclosing an aperture in a bowl body (12) through which a two-piece core assembly (8, 6) is inserted.

The efficiency of producing liquid products from a cryogenic air separation process using a distillation column system having at least a high pressure distillation column (902) and a low pressure distillation column (904) in thermal communication with each other and in which system the low pressure column (904) operates at a pressure of 60 to 520 kPag (9 to 75 psig) and at least 50% of the feed ai...

A field emission source is used in conjunction with a three element asymmetric lens system to provide an electron gun having greater magnitude beam currents focused on a smaller spot size than has been previously possible for intermediate energy beams. The three element asymmetric lens system has a lower spherical aberration than prior art electrostatic guns and a very low chromatic aberration coe...

Apparatus for splicing fibrous yarns includes structure having walls which define a chamber accessible to receive respective portions of the yarns and confine them adjacent one another. A gas stream may be directed into the chamber transversely to the yarn portions. Means is provided to maintain the gas stream entering the chamber, and preferably also the walls of the chamber, at an elevated tempe...

An electron beam x-ray computer tomography scanner is improved so that a compact, tiltable configuration without mechanical motion is achieved. By introducing the electron beam in a direction which is largely parallel rather than perpendicular to the scan plane, the long large diameter evacuated electron beam pipe of prior art is eliminated. As a result, the scan system according to the invention ...

The crusher is fitted with a feeder (14,15), comminuting mechanism (2,3,11), and a discharge (18,19). A drive (7) for the comminuting mechanism is also included. The mechanism comprises a low-speed, cylindrical cutting rotor (2) with peripheral blades (3), coating with a stationary counterbalance (11). Pref. the counter-blade is swivelably mounted and is engaged by a spring (13), hydraulic ram, lo...

A collection chamber accommodates the fluid and is partly limited by a membrane, provided with an electrical conductor connectable to a current source. The chamber has an atomisation aperture. The membrane (9) has an electrically-conductive, cohesive area, and this area is intersected by magnetic field lines emanating from the electrical conductor (12). The electrical conductor is a coil and in it...

In the closed housing a disc rotor (1) or a drum rotor is rotatably located on a shaft, in which at least one expeller aperture (3,4) is provided. At least one cutting blade, which works in conjunction with the fixed counter blade, is arranged before the aperture. The cutting blade (9,20) fitted to the disc rotor or drum rotor, forming two cutting edges (13,14,21,22), is V-shaped. The cutting edge...

The present invention concerns the discovery that proteins encoded by a family of vertebrate genes, termed here hedgehogrelated genes, comprise morphogenic signals produced by embryonic patterning centers, and are involved in the formation of ordered spatial arrangements of differentiated tissues in vertebrates. The present invention makes available compositions and methods that can be utilized, f...

Rigid closed-cell polyisocyanate-based foams are prepared by the reaction of polyisocyanate with a polyol composition having an average hydroxyl number of 100 to 500 and comprising at least one polyol component containing from 4 to 8 active hydrogen atoms per molecule and having a hydroxyl number of from 100 to 500. The blowing of the foam is essentially with carbon dioxide generated from the reac...

When controlling a travelling body so as to move forward the travelling body along the predetermined route, the distance and direction of deviation of a body of the travelling body from the predetermined route are measured, the above measured distance and direction of deviation of the body from the predetermined route are inputted as an observed value into an antecedent operation part in which the...

PCT No. PCT/EP91/02407 Sec. 371 Date Jun. 15, 1993 Sec. 102(e) Date Jun. 15, 1993 PCT Filed Dec. 16, 1991 PCT Pub. No. WO92/11130 PCT Pub. Date Jul. 9, 1992.The present invention concerns a process for the preparation of foam-in-fabric articles useful in furniture and automotive applications such as car seats, arm seats and head rests. According to the present invention a flexible or semi-flexible...

A light protecting device (50) for the light-sensitive content of an infusion bottle (64) comprises a light-opaque protective film (54) which can be subsequently applied, as and when required, onto the infusion bottle (64) and which is designed such that suspension devices (70) for the infusion bottle (64) can be passed through the protective film (54) in the bottom region of the infusion bottle (...

The binding holds the boot for the sports gear and is automatically released, on attaining a limit force value. It has one or more spring elements (15), which abut resiliently a release member (10) via arrester elements (25,26). The spring elements are pref. in the form of compression or tensile springs. Alternately spring loaded shanks may be used, or single- or multi-shank bending springs may fi...

Isolated thrombopoietin (TPO), isolated DNA encoding TPO, and recombinant or synthetic methods of preparing and purifying TPO are disclosed. Various forms of TPO are shown to influence the replication, differentiation or maturation of blood cells, especially megakaryocytes and megakaryocyte progenitor cells. Accordingly, these compounds may be used for treatment of thrombocytopenis.

A system for delivering radiofrequency energy to ablate tissue comprises a radiofrequency generator and an intravascular catheter. The catheter includes a radiofrequency ablation electrode and a temperature sensor within its distal end and may also include an additional electrode for ECG endocavitary mapping, or HIS. Delivery of power to the ablation monopolar electrode may then be controlled base...

Process for preparing MDI flexible foam in a closed mould at a pressure of 0.001 - 0.5 bar above atmospheric pressure.

High molecular weight polyethyleneterephthalate resin is currently being used in vast quantities in manufacturing tire cord and in manufacturing trays for frozen foods which can be heated in either microwave or convection ovens. In some applications polyester resins having ultra-high molecular weights are required. For example, some techniques for producing polyester yarn by solution spinning dema...

The operation of an automated friction clutch between the output element of the engine and the input element of the variable-speed transmission in a motor vehicle is regulated by a fluid-operated system which receives signals from an evaluating circuit. The evaluating circuit receives signals from a number of sensors which monitor the RPM of the engine, the RPM of the input element of the transmis...