Abstract: The present invention relates to compounds which are derivatives of 1,4-dihydropyridine-3-carbothiol acids of the formula: ##STR1## wherein R is hydrogen, an alkyl, aryl, heteryl;R' is a lower alkyl, aralkyl;R" is an alkoxy, alkylthio, aralkylthio;R"' is methyl;R'"+R" is phenylene (ortho-).The compounds of the present invention reveal a coronarodilating activity, and are useful in medicine.

Abstract: A mechanism for the automatic respooling of safety belts including a belt spindle rotatable in a housing and including a roll-up spring tensioned by the pull out of the belt and engaged by the belt spindle, and a friction brake relieving the belt pull back force. The friction brake including a first friction element connected to the belt spindle and a second friction element rotatably mounted and continuously in frictional engagement with the first friction element, and wherein the second friction element is fixed in angular relationship on the housing by means of a stop lever. The apparatus further comprises an automatically-functioning two-arm stop lever having a slot which is disposed about a pivot pin attached to said housing and said lever is pivoted on said pin and displaced or movable along said slot.

Abstract: A condenser for isolating solid substances from a vapor and gas mixture and pulps comprises a vertical cylindrical casing having a conical bottom and a vertical rotary drum accommodated in the casing and adjoining with its outer periphery to vertically extending internal protrusions of the casing walls in such a manner that the drum and the protrusions form a vertical transversal partition wall which is in a spaced relationship with respect to the casing bottom, and the interior of the casing represents a U-shaped space. Pipes for admission of a vapor and gas mixture and a pulp that does not contain rare-earth metals are provided in the upper portion of one inlet branch of the U-shaped space, and a pipe for discharge of the vapor and gas mixture cleaned from solid substances is provided in the upper portion of the other outlet branch of the U-shaped space. A pipe for removal of solid substances is provided in the lower portion of the conical bottom.

Abstract: A device for delivering cryogen to a superconducting winding of a cryogen-cooled electrical machine comprising a pipe articulated along the axis of the electrical machine and intended to deliver cryogen. One end of said pipe is located in a rotary chamber which communicates through channels with the space of the electrical machine, and said space accommodating its superconducting winding. The said chamber accommodates a needle installed along the chamber axis, and the length of said needle is of sufficient length such that in the advanced position of said cryogen delivering pipe said needle reaches the end of the pipe.The layout of the electrical machine increases the reliability and effectiveness of the device for delivering cryogen to the superconducting winding, simplifies the design of the device and raises the efficiency of the electrical machine.

Abstract: Cyclic analog of bradykinin having the formula ##STR1## where Lys-L-lysine residue, Pro-L-proline residue, Gly-glycine residue, Phe-L-phenylalanine residue, Arg-L-arginine residue. The present compound can create prolonged depressor effect in experiments in vivo, as well as increase vascular permeability in experiment in situ less than bradykinin. In experiments in vitro this compound displays no myotropic effect.

Abstract: A method for dimerization of olefins with a number of carbon atoms of at most 10 which comprises intermixing, in a medium of solvents selected from the group consisting of hydrocarbon solvents and halogenated hydrocarbon solvents at a temperature ranging from -20.degree. to +100.degree. C under a pressure of from 1 to 45 atm, of at least one of said olefines with a two-component catalyst consisting of an organoaluminum compound of the formula R.sub.n AlX.sub.3-n, wherein R is an alkyl with a number of carbon atoms of at most 8, X is a halogen, n = 1 or 2, and a graft-copolymer, swellable in said solvents, of a rubber selected from the group consisting of natural, synthetic carbo-chain and vinyl-containing siloxane rubbers, with vinylpyridine; said copolymer containing 0.5 to 40% by weight of polyvinylpyridine fragments complexed with a nickel salt; molar ratio between said organoaluminum compound and said nickel salt ranging from 1:1 to 100:1.