A double-acting electromagnet device for controlling the movement of an injector valve of a fuel injector for a diesel engine, comprises an electromagnet body (1, 2) carrying an electrical winding arrangement (7), and an armature (8) movable relatively to the body (1, 2), the armature (8) being in the form of an obtuse-angled thin-walled hollow cone, the body having a respective conical surface ad...

A lead-acid battery construction includes positive electrode means (37) and negative electrode means (39, 40) supported in contact with separator means (42) containing an electrolyte. The positive electrode means (31) is gridless and is formed with reacting PbO2 portions (66) and non-reactiong PbO2 portions (64) which carry a required electric current through the positive electrode means during ch...

In a method and device for filtering a suspension of particles in a liquid the liquid is passed continuously through a porous membrane, particles from the suspenion gradually accumulating on the membrane and clogging its pores. The filtered liquid is caused to flow momentarily in the reverse direction to return the accumulated particles to the suspension and so unclog the membrane. To achieve this...

The lifting platform consists of uprights made of several plates (10) deriving a triangular centre section. The space between outer and inner plates is filled e.g. with plastics or rubber (11). The uprights are interconnected by a lattice patterned plate arrangement. Incorporated in the uprights is a serrated rack for rack and pinion drive. - Construction includes a platform (1) of legs (2) formed...

PURPOSE:To easily generate a dummy fault, by reporting an input status word of an operation panel to a host device, when an input/output instruction designated by the panel coincides with an input/output instruction whose execution has ended, and also the number of instructions has exceeded the number designated from the host device. CONSTITUTION:A magnetic tape controller 2 which has received an ...

The invention concerns a method of automatically steering a self-propelled floor-cleaning machine along a predetermined path of motion on a limited area to be worked, wherein a sequence of path segments stored in a data memory is retrieved, and the path segments travelled by the machine, and wherein markings are recognized by at least one sensor and converted into course-correcting control command...

An aqueous copolyester dispersion suitable for the subbing of polyester film without use of organic solvents wherein the copolyester contains recurring ester groups derived from ethylene glycol and an acid mixture essentially consisting of 20 to 60 mole % of isophthalic acid, 6 to 10 mole % of sulphoisophthalic acid whose sulfo group is in salt from, 0.05 to 1 mole % of an aromatic polycarboxylic ...

In a process for the preparation of rigid or semi-flexible polyurethane foams, a mixture of polyisocyanate, polyol, filler and blowing agent is foamed. The filler used is the waste-liquor powder obtained from the digestion of chemical wood pulp, which has been heated to a temperature of 100-200 DEG C.

For foam-backing a foam layer, in particular a textile sheet-like structure provided with a lamination foam, it is proposed according to the invention, in order to substantially retain the air permeability and to avoid the formation of a dense skin, that the open-cell foam layer to be foam-backed is treated with a substance containing active hydrogen atoms, in particular triethanolamine, and the c...

1301390 Hexamethylenetetramine adducts DOW CHEMICAL CO 23 Oct 1970 [27 Oct 1969 (2)] 50489/70 Heading C2C The invention comprises stabilized hexamethylenetetramine-unsaturated halide adducts containing a suppressor additive selected from urea, biuret, a C 1 -C 2 aliphatic aldehyde polymer, an ammonium or alkali metal bicarbonate, an ammonium or alkali metal salt of a C 2 -C 8 aliphatic polycarbo...

A defect inspection apparatus for bottles made of transparent material in which a light source is located under a bottle made of transparent material and to be inspected for irradiating a bottom of the bottle, a photoelectric conversion sensor is installed above the mouth of the bottle for receiving such a light that enters the bottle from its bottom, passes through the inside of the sidewall of t...

In order to control the traction of motor vehicle driving wheels (1, 2) the driving wheels are immediately and automatically disengaged from the engine (6) when wheel slip is detected, and then gradually re-engaged as soon as a substantially non-slip state is obtained, the fuel supply to the engine (6) being reduced after disengagement in order to avoid racing. The disengagement and the re-engagem...

Powders of melamine-formaldehyde condensates which are at least sparingly water-soluble are prepared by spray-drying a condensate solution. The condensate solution is obtained by condensing melamine and formaldehyde in aqueous solution in the presence of 0.01 to 0.1 mol of an alkali metal sulphite, bisulphite, dithionite or (formaldehyde)sulphoxylate, based on the melamine. Secondary amounts of a ...

In an optical recording system wherein the intensity of a laser beam is modulated with an input modulation signal so as to record information on a recording medium, the intensity modulation of the laser beam is performed after the pulse waveform of the input modulation signal is converted into two pulses which express the front edge and rear edge of the pulse waveform respectively.

PROCEDIMIENTO PARA LA PREPARACION DE UNA ESTRUCTURA DE PELICULA DE POLIAMIDA MONOCAPA ORIENTADA BIAXIALMENTE, QUE SE EMPLEA CONVENCIONALMENTE EN LA PREPARACION DE PELICULAS DE NYLON SOPLADAS MONOCAPA. COMPRENDE LOS SIGUIENTES PASOS: PRIMERO, SE MEZCLAN INTIMAMENTE DE 1 A 50 PARTES EN PESO DE UN COPOLIMERO AL AZAR DE ETILENO-ACIDO CARBOXILICO ETILENICAMENTE INSATURADO, CON 50 A 99 PARTES EN PESO DE...

When by means of electrons of high energy (7) generated by a semiconductor cathode (20) population inversion is obtained in an active region (2) of a laser structure (1), a laser action is obtained. This laser action can be restricted to a narrow strip (3) of the active region (2). By means of deflection means (10,21) preferably constituted by acceleration electrodes (21) of the semiconductor cath...

A semi-automatic mechanical transmission system (10) and method for controlling same is provided. The transmission system includes a shift selector lever (1) which may be moved forward or rearward from the centered position thereof to select upshifts and downshifts, respectively, and a central processing unit (38) receiving input singles from the selector lever and which will sense multiple moveme...