Abstract: This invention relates to new 1,3-dihydro-6-methyl-7-hydroxy-furo-(3,4-c)-pyridine derivatives of the general formula ##STR1## wherein A< represents a group of the formula --(CH.sub.2).sub.n --, n being an integer of from 1 to 5, or a homocyclic or heterocyclic group, and R represents a hydrogen, chlorine or fluorine atom, a trifluoromethyl group, an alkyl group having from 1 to 5 carbon atoms, an alkoxy group having from 1 to 5 carbon atoms, a alkylthio group having from 1 to 5 carbon atoms, a dialkylaminoalkoxy group in which the alkyl groups each have from 1 to 5 carbon atoms and the alkoxy group has from 1 to 5 carbon atoms or a N-pyrolidinyl-alkoxy group in which the alkoxy group has from 1 to 5 carbon atoms to a process for the preparation of the same by refluxing .alpha..sup.

Abstract: A method and an apparatus for treating a gravel type solid material with a liquid in a bath are described. The apparatus comprises means for supplying the solid material, means for transporting it through the bath and means for removing the processed solid material from the bath. The apparatus comprises further means for supply of liquid and tapping off of the liquor. The method comprises introduction of the gravel type solid material into the bath at its lower end and removal of the processed solid material at the upper end, the gravel type solid material being gradually transported upwards through the bath by means of rotating lifting members while liquid is introduced into the bath at its upper half while liquor is drained off at the lower half. The lifting member comprises at least one inclined plate which is rigidly fixed to a vertical tube through which the solid material is introduced into the bath or the tank.

Abstract: The present invention relates to a pin tumbler cylinder lock comprising an outer cylinder, an inner cylinder rotatably arranged in a cylindrical opening in the outer cylinder, a key-way intended for a key and at least two rows of parallel bores arranged in the outer cylinder, in which bores spring loaded tumbler pins are slidably arranged. The at least two rows of bores have different number of bores, whereby the key will be prevented from retraction in one or more angular position of the inner cylinder. The present invention relates further to a key for such type of locks, the key having notches along its edge, the depth of which being interrelated with the length of the bottom tumbler pins. At least the notch at the extreme end of the key is removed, whereby the key may be retracted in both positions.

Abstract: A method of matching a golfer with golf balls with varying aerodynamic properties is disclosed. The "launch conditions" with which the golfer "launches" a golf ball are measured to determine the golf ball dimple pattern most suitble for a particular golfer or to determine modifications which should be made in his style of play or club design.

Abstract: The present invention relates to means for transporting/rotating the pot of a smelting furnace. The invention is particularly adapted to furnaces having rotating furnace pots and in particular to furnaces with a split furnace body. The pot is locked from rotation simply by letting the furnace pot rest on its foundation during intervals in which the pot is supposed to be at rest. The pot is rotatably arranged with respect to the furnace foundation and the rotation is produced by means of a plurality of transport means. The transport means are preferably evenly arranged around the circumference of the pot. The transport means comprises lifting means which periodically lift the pot partly or completely off its foundation. The lifting means are preferably of a type which provide a lifting force in vertical direction, either by means of a hydraulic medium or compressed air. The lifting means may for example be formed by one or more flexible hoses which communicates with a pressure producing source.

Abstract: The invention relates to a method of manufacturing large tubular columns, for example, for use as the legs of off-shore well-drilling apparatus. Each column is manufactured by initially fitting stiffening ring segments to a plurality of shell segments and then welding the shell segments together to form a column section. After additional ring segments have been fitted across the joints between the shell segments, a series of tubular sections are welded together to form the column.

Abstract: An endoscope is provided with a water proof cover on its eyepiece portion or its connector portion to be connected with a light source system. The water proof cover is provided with a smooth engaging face on the internal periphery near its open end to be liquid tightly engaged with a packing ring mounted on the endoscope. There is provided a protective cover above the packing ring to prevent the ring from being damaged while the cover is removed from the endoscope. In a preferred embodiment, the water proof cover is provided with a protective sleeve which is slid into the protecting position to cover and protect the smooth engaging face while the water proof cover is removed from the endoscope. In a further preferred embodiment, the water proof cover is made into such a form as to enable the diopter ring to be rotated with the cover mounted on the endoscope.

Abstract: A machine for the repair of alloy-tipped saw blades is provided. According to the invention, a damaged circular saw blade can be completely repaired at one location. The saw blade is clamped in the machine. Brazing and grinding tools are positioned for repair of the clamped saw blades.

Abstract: A method of leaching of the metal contents in natural silicates by means of mineral acids to produce a metal-containing leaching liquid and a solid residue is disclosed. The silicate is first crushed but the grain size of substantially all of it is kept above 0.1 mm. It is then leached for a period of time sufficient to form a solid residue consisting chiefly of silica. The process is controlled so that the grains do not change in size or shape in the course of the leaching process. The silicate to be leached may be anorthosite or olivinrich rock and the solid residue from the leaching process may be utilized for building material, as a source for silicon in industrial processes, as a catalyst or carrier of catalysts or as an absorbent.

Abstract: The present invention relates to an extendible structure forming shelter adaptable on the roof or top of an automobile vehicle, wherein the structure comprises a lower shell and an upper shell which are connected to each other by articulated assemblies each comprising two arms and a return member urging said arms into open position. The invention is more particularly applicable to camping/caravanning.

Abstract: A system for setting markings in a fabric, in which a material is pressed at a heat steam and hot air atmosphere under upward and downward loads, the loads being applied thereto by means of protruded pressing means of heat conducing material.

Abstract: The invention relates to a furniture fitting in the form of a cup-shaped hinge housing which can be anchored into a bore of a furniture door and used as a door side pivot carrier for a furniture hinge. The hinge housing has a locking element which can be rotated about an axis at right angles to a circumferential wall and which has a section for holding the locking element when it is in a locked position. In a preferred embodiment of the hinge housing, two swivelling locking elements are provided which are connected to each other by a bracket shaped element so that when the bracket shaped element is swivelled to a given position by hand the locking element is moved into a locking position.

Abstract: The invention relates to an apparatus for the treatment of substances in a stream of gas, especially for the absorption and/or adsorption or for the filtration of gases, having a first chamber, having a second chamber, and having a plurality of cells situated axially one over the other between the first and second chambers, these cells being separated from one another and from the first and second chamber by walls and having in one of the walls at least one upper inlet opening in the upper part and in another wall at least one lower outlet opening in the lower part for a medium moving downwardly through the cells and consisting of solid particles, fresh medium being fed to each cell through the upper inlet opening and the medium being carried out of each cell through the lower outlet opening by a sweeping means moving transversely relative to this cell or perpendicularly to the axial direction, and wherein a gas forming the gas stream enters the cells at least partially at the outlet apertures and flows throu

Abstract: The invention is a method of increasing femoral blood flow and vertebral blood flow a compound of the formula: ##STR1## wherein R is alkoxy carbonyl the alkoxy having up to 5 carbon atoms, trimethoxy substituted phenyl carbonyl or a therapeutically acceptable acid addition salt of one of the foregoing.

Abstract: An axial electromagnetic bearing for smooth shafts of large diameter and relatively shorter length of the type comprising a stator of substantially annular shape and an armature in the shape of a disc attached to the shaft and located facing the stator, at least one axial position detector for the shaft being associated with the axial bearing, and the bearing being characterized in that the stator of the axial bearing is composed of four independent sectors each of which comprises a ferromagnetic core and a winding and each of the independent sectors of the stator of the axial bearing being controlled by at least one corresponding detector determining the axial position of the shaft in relation to the said sector.

Abstract: A mixer-settler apparatus is disclosed. The outlet tubes from the settler section are made positively adjustable in height so that proper phase separation can be obtained under varying conditions.

Abstract: Method for combating cariae, the carrier organisms of bilharziasis, by means of amphoteric surface-active products of the betaine or imidazoline type which can be included in cakes of toilet or household soap.