Use of polyfluoroalkanes of the formula CX3-CY2-R (I> in which X radicals on the same C atom stand for hydrogen and/or fluorine, Y radicals on the same C atom stand for hydrogen, fluorine and/or CF3 and R stands for CH2F, CHF2, CH3, CF3, CF2-CH3, CF2CH2F, CH2-CH3, CH2-CH2-CH3 or -CH(CH3)-CH3 and a molecule of the formula (I) contains at least two fluorine atoms, as propellant gases. o

A process is described for degrading organic pollutant compounds using fungal enzymes containing a lignin degrading enzyme using hydrogen peroxide. The process particularly uses Phanerochaete chrysosporium as a source of the hydrogen peroxide and the enzymes. The process is particularly useful for degrading halogenated hydrocarbons with the halogens substituted in bicyclic rings, which are resista...

Multi-levered hollow-chamber sheet and method of producing such sheet The proposed object of the invention is a multi-layered hollow-chamber sheet made of thermoplastic material and consisting of parallel layers removably connected through webs . Each surface of each layer is smoothed so that the result is a hollow chamber of high optical quality.

An arrangement wherein a frame with mutually parallel guide tracks for transversely placed winding cores fed thereto is mounted in a stand, the distance of the guide tracks from each other or the distance of the winding cores mounted in it is the same as their desired distance on the winding shafts. The front parts of the tracks are provided with recesses in such a manner that the winding cores ar...

Automobiles such as a cash carrying car, truck, police car and so on, are prevented from being ridden away during loading or unloading cash or goods or being robbed by robbers after having been forcibly stopped on road. When a door of the automobile is opened, a opened-door detection switch operates and a first-control means stores in its memory the switch's action and cuts off an engine start-up ...

A light distribution device has a first light-guiding cable for transmitting light rays, a number of second light-guiding cables having light-receiving ends arranged together to form a light-receiving ring plane, a driving means for rotating the light-emitting end of the first light-guiding cable around the light-receiving ring-plane, a light coupler secured at the light-emitting end of the first ...

In an opening device for opening pressed fibre bales, e.g. cotton and viscose fibre bales and the like, by means of a reduction device, e.g. a milling device, being translationally movable over the surface of a bale or a row of bales, the reduction device having at least one milling roll with pressure rolls (17, 18) being disposed axially parallel on both sides of the reduction device, opener disc...

The inverter switch includes two electromagnets (4,5) which are excited alterntely. The armatures actuate two sets of phase switches (9-11,12-14) and two confirmation switches (11,12) connected in series in the supply circuits of the two coils (15,16). The two confirmation switches are operated by a transmission system comprising two rotary coaxial shafts, situated end to end, and each provided by...

The network of-conductive zones of two sheets is draught board network of directions parallel with those of a draught board network of n and p-type cells. The network of conductive zones is a network of alternate parallel bands of direction parallel with one of the directions of the network of cells of the draught board. The connection areas are separated by a rectilinear or circularr frontier zon...

Styrene-based synthetic resin film (I) contains a styrene-butadiene (SB) block copolymer with S:B ratio (60:40)-(95:5) (II) in combination with (A) 2,2'-ethylidene-bis (4,6-di-tert.-amylphenol) monoacrylate (III) and (B) UV absorber(s) of the benzophenone or benztriazole type (IV) and/or sterically-hindered amine light stabiliser(s) (V). (I) is produced by mixing (II) with (A) and (B) and extrudin...

Picking unit drive structure for transversely adjustable row units of a cotton harvester. A hydraulic drive system with an engine driven pump supplies fluid under pressure through flexible conduits to individual hydraulic motors located on the row units and drivingly connected to the unit harvesting structures. Flow to the motor is regulated by a flow-control valve and an electronic valve controll...

In a method of wetting particles contained in a gas stream including particles and gas, a primary gas stream containing the particles is separated into first and second gas streams such that the first gas stream includes substantially all the particles of the primary gas stream. The particles are wetted in the first gas stream with water in a wetting stage. The amount of water which is introduced ...

A closed loop fiber optic rotation sensing system prevents the occurrence of instabilities in its feedback signal by modulating the counterpropagating waves with a reference signal and demodulating an electrical signal indicative of the phase difference of two counterpropagating waves with the reference signal. The modulating means is driven to null the phase difference between the counterpropagat...

A Hall element incorporated inside a semiconductor body has a P-N junction barrier which surrounds the active zone of the Hall element in all directions. The output of the Hall element is connected through a feedback control circuit to control the thickness of the P-N junction barrier, thereby ensuring long duration, temperture stability and linearity for the Hall element.

A light distribution device has a first light-guiding cable for transmitting light rays, a number of second light-guiding cables having light-receiving ends arranged together to form a light-receiving ring plane, a driving means for rotating the light-emitting end of the first light-guiding cable around the light-receiving ring-plane, a light coupler secured at the light-emitting end of the first ...

A light distribution device has a first light-guiding cable for transmitting light rays, a number of second light-guiding cables having light-receiving ends arranged together to form a light-receiving ring plane, a driving means for rotating the light-emitting end of the first light-guiding cable around the light-receiving ring-plane, a light coupler secured at the light-emitting end of the first ...

A light distribution device has a first light-guiding cable for transmitting light rays, a number of second light-guiding cables having light-receiving ends arranged together to form a light-receiving ring plane, a driving means for rotating the light-emitting end of the first light-guiding cable around the light-receiving ring-plane, a light coupler secured at the light-emitting end of the first ...

A latent heat energy store is disclosed with a crystallizable heat storage material, which is capable of absorbing heat on melting and liberating heat again on crystallization, wherein the storage material also includes a crystallization inhibitor which has the property of stabilizing the storage material in the molten state without heat insulation and without energy loss at a temperature below th...

The invention concerns an external issolation module (42) adapted to operatively interconnect at least one pair of a plurality of adjacent vacuum chambers (28, 30) through which a substrate (11) travels and into which reaction materials are introduced. The external isolation module (42) provides a passageway (44) for the substrate (11) between adjacent chambers while substantially preventing the d...

A two terminal control switch having a main switch and a saturable current transformer whose primary winding is series connected with the main switch. A center tapped full wave rectifier has a capacitor connected between its DC sides, such capacitor also being connected to a junction between the primary winding and the main switch.