An automotive driving control system comprises a stepless transmission provided between the engine and the driving wheels, a transmission controller for controlling the transmission ratio of the stepless transmission, a throttle valve driver for driving the throttle valve of the engine, an operating state detector for detecting a particular operating state of the engine such as "knock" or resonanc...

The invention relates to the detection of the tracking error of a track using a process of periodic excursion of a reading beam in a direction which forms an angle with the direction of exploration of the track. The detection system comprises a mirror deflection by a bar vibrating in a flexural mode which is clamped to a base. Two plates of piezoelectric elements mechanically coupled with said vib...

In order to prevent the edges of the crown reinforcement of radial carcass tires whose tread contains oblong elements in relief or blocks (tires for earth-moving vehicles and for drive wheels of agricultural tractors) from deforming during the vulcanization of these tires in the vulcanization mold, at least some of these oblong blocks are provided with a furrow whose depth is between 1/2 and 6/5 o...

A system for storing electrical energy in the form of triple-point CO2 and then using such stored energy plus heat to generate electrical power. A reservoir (11) of carbon dioxide liquid at about the triple point is created in an insulated vessel. Liquid carbon dioxide is withdrawn and pumped to a high pressure (47,15), which high pressure carbon dioxide is heated (19,21) and expanded (23) to crea...

A safety binding for binding a boot to a ski, which includes first and second laterally pivotable independent wings adapted to retain one end of the boot on the ski. Each of the wings is mounted to pivot around respective first and second lateral pivot axes. Elastic return means bias each of the wings towards a centered stable maintenance position of the boot. The apparatus includes a movable anti...

A safety binding for binding a boot to a ski, which includes first and second laterally pivotable independent wings adapted to retain one end of the boot on the ski. Each of the wings is mounted to pivot around respective first and second lateral pivot axes. Elastic return means bias each of the wings towards a centered stable maintenance position of the boot. The apparatus includes a movable anti...

A heel piece of a safety ski binding, said heelpiece comprising: a base attachable to a ski; opposed vertical support members mounted on said base, each support member including a track formed by an outwardly curved surface terminating in first and second end surfaces extending at an angle thereto; a soleholder mounted on said support members for pivotal movement about an axis transverse to said s...

A method and apparatus are described for determining the density of a fibre strand in the tobacco processing industry, especially of a wrapped or unwrapped tobacco strand. The strand density is measured by means of two radiations which pass through the strand (2) and differently record at least one further strand property. For the first strand density measurement, a nuclear measuring head (22) is ...

Single and multiple porous media impingement type air filter elements are disposed in filter housings which provide access to the filter elements from top opening doors or plenums in the housing for service or repair of the elements. Housing sections defining the plenums are provided with mechanism to lift and swing the housing sections clear of the filter opening, and the housing sections are mov...

A pulse train presence detector for a system having a number of interruptible devices, consists of a pulse generator, interface device which receives a periodic trigger signal and outputs a pulse train signal in response thereto, the pulse train signal is communicated to an NPN transistor and operates the transistor to alternating "on" and "off" states. A first current path is established during t...

A device for discontinuing and automatically restoring the operational function of a spring brake actuator comprises a piston (9) with a piston rod (10) and a spring (13) actuating the piston and piston rod in a working direction for brake application at falling brake fluid pressure on the piston, a slitted, resilient locking ring (15) being arranged in grooves (16, 17) facing each other in the pi...

A process for the production of prepregs having a high fiber weight of 500 to 2500 g/m2, in which process fiber strands made of glass carbon, aramid, ceramic, metal or other inorganic and/or organic fiber materials, if appropriate together with woven fabrics, laid fabrics, nonwoven fabrics or mats made from one of these materials, are impregnated with duroplastic resins without additional solvents...

Terpolyimides are prepared from tetracarboxylic acid esters and combinations of heterocyclic aromatic, and aliphatic diamines. Precursors, and methods of converting them to the corresponding terpolymers are described. The terpolyimides are useful as foams.

Porous PTFE materials having high strength and coarse microstructure are produced by densifying the materials after removal of lubricant and then stretching. The term, "coarse", is used to indicate that the nodes are larger, the fibrils are longer, and the effective pore size is larger than conventional materials of the same matrix tensile strength. Densification can be achieved through the use of...

A method for obtaining redispersible powders of a copolymer having a dynamic glass transition temperature, Tmax, below 150 DEG C., by spray drying an aqueous dispersion thereof having a minimum film forming temperature, MFT, using an inlet temperature Ti and an outlet temperature To such that MFT

An oriented nylon film, useful as a carrier web in the manufacture of fibrous reinforced resin sheets contains a salt selected from at least one copper salt, at least one alkali metal halide, at least one alkaline earth metal halide and mixtures thereof. The nylon film is preferably nylon 6, nylon 66, nylon 66/6 and/or mixtures thereof and the salt is preferably a copper salt, especially cupric ac...