The invention relates to an anti-skid device for vehicle wheels, comprising a plurality of U-shaped elements radially mounted on the wheel tire, and two series of connecting levers pivoted on each arm of said U-shaped elements. In order to provide an automatic mounting operation of the device on a vehicle wheel by simply advancing the wheel on the device, each arm of each of the U-shaped elements carries retaining means for said levers, which removably retain the U-shaped elements and levers in ...

A control panel for regulating plural parameters is provided with plural displays, each associated with one parameter. A single manually moveable knob is provided for entering a manually variable signal. Individual actuators such as push buttons are disposed adjacent each of the display means. The control panel is arranged to interpret the variable signal provided by the maneuvering element or knob as a new value for a control constant associated with a particular parameter depending upon which ...

A process and an apparatus for performing analyses in liquid chromatography, by means of a pump capable of drawing a fluid and injecting it at high pressure, through at least a control valve, into a separation column. To obtain maximum precision as required by the analysis, before each analysis or each group of analyses, or with respect to each fluid used, a pump stroke is performed with the pump delivery side shut off in order to record and memorize the characteristics of compressibility of the...

In electrostatic atomization of liquids wherein a stream of electrically charged liquid is atomized under the influence of the electrical charge, the stream is surrounded by a mist to increase the dielectric breakdown strength of the surrounding atmosphere. This permits use of higher charge levels and hence more efficient atomization. The mist may incorporate minute droplets of the liquid to be atomized. An insulating vapor may be formed from the liquid by heating a portion of the liquid and emp...

An apparatus and process for providing an automated edit procedure between film and video formats is provided wherein a video edit becomes within one video field the exact replica of a film edit. Film frames (1/24th of a second) are read by video scans (1st and 2nd fields in 1/30th of a second) in a 3:2 pull down wherein successive movie frame scans are provided with four classes of video scans. These classes of video scans include (Class A) odd/even scans; (Class B) odd/even/odd scans; (Class C...

Methods for coating hydrophilic gels onto the surface of solid particles are disclosed which include utilizing hydrophilic solid particles, intimately admixing these hydrophilic solid particles with a hydrophilic gel-forming substance at a temperature above the gelling temperature so as to coat the solid hydrophilic particles, and then separating these coated particles from each other and cooling them to a temperature below the gelling temperature. The use of these coated particles is also discl...

In a cast film process, a thin sheet of semi-molten resin is extruded from a die and directed onto a rotating cylinder such that the transverse length of the sheet and the rotational axis of the cylinder are parallel to one another. During this stage of the process, it is desired to prevent air from entering and subsequently being trapped between the film and the casting surface of the rotating cylinder. Ultimately, entrapped air results in localized film distortion and non-uniform heat dissipat...

A valve system, applicable for instance to analyzers, consists of a plurality of electromagnetically operating clamp valves, purposed to unclamp and/or clamp an elastic tube passing through the valve, thereby respectively turning on or shutting off fluid flow in said tube. The apparatus comprises a magnet table carrying a plurality of electromagnets, a cover part adjacent the magnet table carrying closing pegs movable with the aid of the electromagnets, and a tube cassette between the magnet tab...

A pouring spout for a liquid container has a film attached to a pouring hole from inside of the container and a tab tape for covering the pouring hole from outside of the container. The film includes a portion for forming a pouring opening corresponding to the pouring hole, and a lip forming portion along the portion for forming the pouring opening. The tab tape is peelably adhered to the film and a peripheral edge of the pouring hole, the joining portion between the film and the tab tape being ...

An artificial fish bed or fish-settling installation submerged in a body water has a flat base made of concrete, several supporting poles erected on the concrete base at regular intervals, and several layers of shelves secured to the poles. The shelves extend horizontally and parallel with one another and are separated vertically by cylindrical members having a predetermined length which are inserted on each pole between layers of shelves. Each shelf is formed by superposing openings formed in a...