An evaporator comprising a device for uniform distribution of liquid over the inner surface of crimps in an upper drum constituted as a plate rigidly secured to a rotor shaft and covering the inner space of the drum so that steam passes through an annular clearance between the outer surface of the drum and a heat-exchanging surface of the casing. A centrifugal separation device comprises sections, each positioned between adjacent drums and having vertically disposed blades for discharging the se...

A thin film magnetic head includes a magnetic core formed by first and second magnetic layers with at least one winding of conductor layer provided therebetween. Separating layers are provided to electrically isolate the conductor layer from its neighboring layers. The separating layers are semiconductor layers.

It is known to form an optical waveguiding thin film on a substrate. For various practical reasons, it is often desired that an optical beam coupled to the film be laterally confined so as to propagate only in a longitudinal stripe portion of the film. As disclosed herein, this is accomplished by depositing spaced-apart elements in contact with one surface of the film to establish in a narrow longitudinal region of the film between the elements an effective index of refraction that is higher tha...

A device to produce and test a thin film of excited gas or liquid comprising a helium resonance lamp having an emission at 584A and including a window in said lamp partially transparent to radiation at 584A. A chamber containing a gas mixture including helium surrounds the window. Windows are provided in the chamber adjacent the lamp window, said windows being transparent to emission emanating from the gas adjacent the lamp window when the lamp is excited by an RF source.

A thin film apparatus for the treatment of flowable materials comprising a rotor arranged within a substantially rotationally symmetrical housing having a section constituting a treatment portion for the material or feed to be processed and a section constituting a separation or separator portion, the inner diameter of which is larger than that of the treatment portion. The section defining the separator portion is connected via a transition element or member having a substantially conical inner...

Sputtered thin films, particularly of tantalum and niobium, are prepared having predetermined optical and dielectric properties by controlling the flow rate of O.sub.2 in relation to the flow rate of N.sub.2. By controllably varying the ratio, differing characteristics can be obtained. Thus a stepwise or a continuous variation in refractive index can be obtained. Films show low optical losses and birefringent properties, and are particularly suitable for optical waveguides, capacitors and filter...

A method for making thin, substantially uniform and self-supporting polymer films by forming a solution of a base polymer, a surface-active block copolymer and a solvent, and forming a film from said solution by contacting it with film-forming means. The block copolymer contains at least two polymerized comonomers, one of which is compatible or substantially miscible with the base polymer and serves to distribute the block copolymer therein and the second of which is sufficiently surface-active ...

A process is disclosed which comprises the steps of introducing a stream of the organic liquid onto a plurality of rotating reacting surfaces, rotating the reacting surfaces at a velocity such that the organic liquid is continuously formed into a thin film on each reacting surface and is continuously moved as a thin film towards the periphery of each reacting surface by centrifugal force, depositing over each thin film a substantially undiluted stream of a gaseous medium, reacting the organic li...

The thickness of an electronic watch body may be substantially reduced by having portions of the top surface of the watch extend above the remainder of the top surface. Components of the watch which otherwise result in requiring a thick watch body, such as the battery or the display element (e.g., a liquid crystal display), project up into these raised portions.

Thin, continuous steel wires are produced by solidification of a jet of liquid steel projected into a cooling fluid. The solidication is initiated and accelerated by the presence of oxygen in the cooling fluid and by selection of the relative amounts of silicon and manganese in the liquid steel so as to provide solid silica as the oxidation product which is principally formed.