A silencing ventilating device, in particular for a ventilating passage in a wall or partition, and comprising a tubular casing (11) and at least one tubular inner pipe (12) having at least one opening in its wall constituting a communication between a continuous ventilating passage (15) and an enclosed space (14) formed by transverse baffles (17) extending from the inner pipe (12) and/or the casi...

A miniaturised sensor of the Clark cell type for determn. of a component (I) in a liq. comprises a chamber provided with a substrate of semiconductor material enclosed by a vertical wall made of polyimide material; a membrane over the wall of the chamber which is permeable w.r.t. the (I); one or more electrodes and an electrolyte in the chamber; and means for electrically connecting the sensor to ...

Chair comprising a support element (1) ,a seat (2) and a backrest (3), the seat (2) consisting of a foremost portion (7) being rigidly connected to the support element (1) and of a rear portion (8) being pivotally connected to the support element (1) and being supported by an arm (13) at some distance from its pivot (10), said arm (13) being positioned beneath the seat (2) and carrying the backres...

PURPOSE:To intensify the adhesive power of a diamond coating layer synthesized in a low pressure vapor phase and to improve the cutting performance of a cutting tool tip consisting of a WC-based sintered hard alloy formed by sintering Co as a binder by subjecting the surface of said cutting tool tip to an etching treatment by an acid, then forming the above-mentioned coating layer thereon. CONSTIT...

An apparatus for unwinding rolls of sheet material and for adhering the end of one roll to the beginning of the next at full running speed, without interruption. Means are also provided to permit operation with rolls of different widths and even with two narrow rolls alongside one another. A support which can be operatively positioned between two such narrow rolls can be moved laterally out of the...

PURPOSE:To prevent the generation of flaws by supplying a gas from one end of a glass tube to prevent the direct contact of a glass rod with a glass tube when the glass rod is inserted into the glass tube and the assembly is collapsed to produce the title optical fiber base material. CONSTITUTION:The glass tube 2 is set almost vertically, and a gas 6 is supplied to the lower end of the glass tube ...

The present invention relates to instant fittings for smooth, bare tubes, comprising a hollow body having a bore corresponding to the section of passage of the fluid and an inner housing in which is disposed the tube retaining means, said tube being held by an obturation and abutment means, mounted on the body at one of the ends of the housing on the side of the entry of the tube in the fitting. T...

PCT No. PCT/SE84/00180 Sec. 371 Date Jan. 7, 1985 Sec. 102(e) Date Jan. 7, 1985 PCT Filed May 19, 1984 PCT Pub. No. WO84/04507 PCT Pub. Date Nov. 22, 1984.An apparatus for inserting an internal lid (6, 7) in a tubular formed container (1) and for sealed connections of the lid to the inner of the container tube by constant heat welding, high frequency welding or ultrasonic welding and comprising a ...

An adaptive frequency range equalizer for digital radio relay systems which require adaptive frequency range equalizers which have coefficients that are adjustable. That are different possibilities for setting the coefficients of the transversal filter in such equalizers in a manner such that the transmission function of the transversal filter is either of the minimum phase type (mp), or the linea...

A tool, a kit and a method are used for terminating a fiber optic cable with a fiber optic connector. The tool (l) provides a spring loaded arrangement whereby a cable terminated with a connector (27) is mounted within the tool and a spring force biases the end of the connector carrying a ferrule (29) downwardly out of the tool with the fiber mounted within and extending therefrom. When polishing ...

Chlorinated water is circulated through vessels first for irradiation with infra-red radiation at a wavelength of 765 nm to 10 microns then for irradiation with ultraviolet radiation at a wavelength exceeding 300 nm and finally for irradiation at a wavelength of 100 to 200 nm and at a wavelength of 253.7 nm.

Chlorinated water is circulated through vessels first for irradiation with infra-red radiation at a wavelength of 765 nm to 10 microns then for irradiation with ultraviolet radiation at a wavelength exceeding 300 nm and finally for irradiation at a wavelength of 100 to 200 nm and at a wavelength of 253.7 nm.

PURPOSE:To extend the range where satisfactory distance measurement is possible, by averaging plural extents of defocusing obtained from the output signal of a photodetecting element and discriminating the in-focus state or the out-of-focus state in accordance with the average extent of defocusing. CONSTITUTION:The sum (integral sum output) and the difference (integral difference output) between t...

PURPOSE:To achieve low fuel consumption, by gradually reducing the cam plate angle in the direction toward the highest efficiency while simultaneously varying the rotation of an engine in gradually reducing direction in the constant power force zone. CONSTITUTION:The cam plate angle of a hydraulic pump 3 is controlled by means of a variable regulator 4, while a rotation Ne and an input torque comm...

Dilatation procedures and catheter instrument for treating patients having acquired aortic stenosis, typically in which there are calcific deposits on the leaflets of the aortic valve. A dilatation balloon introduced into the stenosed aortic valve via the aorta while the blood circulation of the patient is maintained by the heart via the aortic valve, is inflated to grossly deflect the leaflets of...

Chlorinated water is circulated through vessels first for irradiation with infra-red radiation at a wavelength of 765 nm to 10 microns then for irradiation with ultraviolet radiation at a wavelength exceeding 300 nm and finally for irradiation at a wavelength of 100 to 200 nm and at a wavelength of 253.7 nm.

Chlorinated water is circulated through vessels first for irradiation with infra-red radiation at a wavelength of 765 nm to 10 microns then for irradiation with ultraviolet radiation at a wavelength exceeding 300 nm and finally for irradiation at a wavelength of 100 to 200 nm and at a wavelength of 253.7 nm.