The process for filtering air in an apparatus of the filter cyclone type consists in producing a reduction in the upward velocity of the air to be filtered, in the bottom part in the form of a skirt (16) of the filter cartridge (4). In its skirt (16), the filter cartridge (4) has perforations (15) which make it possible to increase the entry surface area of the air to be freed from dust, thus...

This invention provides multilayer polymeric films including a layer of nylon polymer having a Vicat A(DIN 53460) softening point of not more than 170 DEG C and being substantially impermeable to styrene, and a layer of a weldable synthetic plastics composition bonded to the layer of the nylon polymer. Such films can be used to recondition pipes, for example sewer pipes. They have the advantage of...

In the cleaning and disinfecting of heat- and corrosion-sensitive medical devices, especially endoscopes, a) those surfaces of the endoscope which are to be treated are brought into contact with a cleaning and disinfecting solution which contains a low-foam, non-ionogenic surfactant, a proteolytic enzyme, a complexing agent, an aldehyde from the group consisting of formaldehyde and aliphatic dial...

A dispenser (1) for dispensing toilet paper (2) from a toilet roll (3) comprises a wall mounting plate member (6) and side members (8). Inclined gear rack tracks (11) formed in grooves (9) in the side members (8) rollably support a mandril (14) by pinions (17). The mandril (14) rigidly engages a core (22) of the toilet roll (3) and is inserted on the tracks (11) through access grooves (32). By pul...

In the cleaning and disinfecting of heat- and corrosion-sensitive medical devices, especially endoscopes, a) those surfaces of the endoscope which are to be treated are brought into contact with a cleaning and disinfecting solution which contains a low-foam, non-ionogenic surfactant, a proteolytic enzyme, a complexing agent, an aldehyde from the group consisting of formaldehyde and aliphatic dial...

Compounds corresponding to the general formula (I) in which R1 denotes a hydrogen or halogen atom or a methyl or methoxy group, R2 denotes a hydrogen atom, a C1-C4 alkyl group or a benzyl group, n denotes an integer equal to 2, 3 or 4, X denotes a CH group or a nitrogen atom, and R3 denotes a hydrogen or halogen atom or a methoxy group. Application in therapeutics.

An improved suspension arrangement for the front steering assembly of a snow-bike, and the snow-bike incorporating the improved suspension arrangement. The steering assembly for which the suspension is intended includes a steering column having a steering device such as a handlebar at its upper end and a ski at its lower end. The suspension arrangement includes an intermediate arm journalled with ...

An improved suspension arrangement for the front steering assembly of a snow-bike, and the snow-bike incorporating the improved suspension arrangement. The steering assembly for which the suspension is intended includes a steering column having a steering device such as a handlebar at its upper end and a ski at its lower end. The suspension arrangement includes an intermediate arm journalled with ...

In this process for the direct production of sponge iron particles and molten pig iron from lump iron ore, which is reduced in a direct reduction unit (2) and supplied in the hot state to a melt-down gasifier (1), the sponge iron particles discharged from the direct reduction unit are separated into a fine particle fraction and a coarse particle fraction and only the former is supplied to the melt...

A method and composition for reducing wear on surfaces subjected to frictional forces. The lubricating compositions can be applied in a carrier which may be organic or inorganic in nature. They function by providing a regime in which multimolecular layers are adsorbed onto the surfaces to be protected, thus enabling comparatively thick protective films to be built up on the surfaces subjected to f...

A solar ray collecting device comprises a solar ray collecting portion including a number of solar ray collecting elements, a transparent dome for covering the solar ray collecting portion, a base plate for supporting the dome, a first-revolution shaft for rotating the base plate, a support arm for supporting the first-revolution shaft and a second-revolution shaft for rotating the support arm aro...

A solar ray collecting device comprises a solar ray collecting portion including a number of solar ray collecting elements, a transparent dome for covering the solar ray collecting portion, a base plate for supporting the dome, a first-revolution shaft for rotating the base plate, a support arm for supporting the first-revolution shaft and a second-revolution shaft for rotating the support arm aro...

A device for overvoltage protection of rectifier/inverter bridges employing gate-controlled solid-state switches without zero diodes is disclosed. To protect at least the solid-state switches of the rectifier/inverter bridge against overvoltages, the device incorporates one or two overvoltage protector units which are activated when the voltage between at least two protection connections exceeds t...

A solar ray collecting device comprises a solar ray collecting portion including a number of solar ray collecting elements, a transparent dome for covering the solar ray collecting portion, a base plate for supporting the dome, a first-revolution shaft for rotating the base plate, a support arm for supporting the first-revolution shaft and a second-revolution shaft for rotating the support arm aro...

A solar ray collecting device comprises a solar ray collecting portion including a number of solar ray collecting elements, a transparent dome for covering the solar ray collecting portion, a base plate for supporting the dome, a first-revolution shaft for rotating the base plate, a support arm for supporting the first-revolution shaft and a second-revolution shaft for rotating the support arm aro...

Operating device for manual manoeuvring of a controllable spray nozzle (20) from an open operation platform (9) which is enclosed by boundary side elements (10, 11, 12), particularly for deicing aircrafts, comprises a swinging arm (15) adapted to swing on a mainly horizontal plane across the upper limitation of the elements (10, 11, 12). At its one end said arm is adapted to pivotal suspension at ...

A tool to be used for the straightening of corner pillar and centre pillars, and of chassis parts connected to the corner pillars and centre pillars of collision-damaged private cars, comprises an elongate gripping device 2 with an inner part 7, 8 of plastic or hard rubber and with an outer, strong stiffening of metal 9, 10. The gripping device can be split into two tool halves 5, 6 along a longit...

An arrangement for thermal disinfection of liquids, in particular waste water containing quantities of bacteria, comprises at least one sterilizer 1a, 1b in which the liquid is heated by addition of steam. Arranged inside the sterilizer there is a steam distribution arrangement 11 which comprises a sleeve 31 which can be displaced longitudinally and has an upper end 36 which is closed and a lower ...

The tool for use with a punching press for punching holes in workpieces has an elongate body having first and second ends. The first end is for releasable engagement by the punching press and the second end has a working surface to engage the workpiece to be punched. - The working surface comprises at least first and second punching edges formed on said second end of the body; and disposed in axia...

Connected to a central control and storage units is a communication interface which communicates with a central lottery machine via an external mains. A feed-in unit receives a command to play from keys on the exterior of the lottery machine, and also a control command from a keyboard inside the machine. A calculator is connected to the central control and the data storage unit, and calculates the...