Inventia de fata se refera la un dispozitiv pentru strîngerea blocurilor de placi pentru acumulatori cu plumb, blocurile constînd din electrozi pozitivi electrozi negativi si separatori. Dispozitivul se caracterizeaza prin aceea ca elementul pneumatic de strîngere consta dintr-un element de membrana care consta dintr-un material elastic care este legat la o conducta de aer comprimat si de care se...

(S) alpha -cyano-3-phenoxy-benzyl alcohol having the formula I and a novel process for its preparation and novel intermediates.

A borehole logging tool and cryostat therefor to maintain a semiconductor detector at cryogenic temperatures. The cryostat has an elongate single-phase heat sink of solid, thermally conductive material on which the detector is removably mounted. The other end of the heat sink is arranged to receive a liquid cryogen or the cold finger of a helium refrigerator, which is removed before a logging run;...

Novel compounds of the formula in which X is halogen or and R1 and R2 are hydrogen or alkyl are useful in the preparation of alpha -haloalkyl esters or alkylene di-esters of carboxylic acids, e.g. 1,1-dioxopenicillanic acid esters.

Novel compounds of the formula in which X is halogen or and R1 and R2 are hydrogen or alkyl are useful in the preparation of alpha -haloalkyl esters or alkylene di-esters of carboxylic acids, e.g. 1,1-dioxopenicillanic acid esters.

Compozitia de aditivi antifum pentru combustibilii motoarelor Diesel, folosita pentru reducerea fumului eliminat de aceste motoare este constituita din 90....93 parti greutate alchilaminofenoxid de bariu sau alchil aminofenoxid de bariu sau alchil nitrofenoxid de bariu continand 8,5% bariu si 7....10 parti greutate carboxilati de zinc ai unui amestec de acizi C7-C21 cu indice de aciditate I.A=350....

There is provided a strip or web-like pliable laminated body made of rubber or rubber-like elastomeric material having metal reinforcing plies, e.g. a conveyor belt reinforced with steel wires, embedded therein and extending substantially longitudinally therethrough, in which the metal reinforcing plies (4) are coated with a flowable anti-corrosion agent (5), said agent comprising a component of a...

The data processing system has a central processing unit (CPU) which is responsive to and executes microinstructions generated by the decoding of macroinstructions so as to provide one or more data processing operations. The system is arranged so that the microinstructions can be supplied to the CPU from microcode decoding logic in the CPU or from one or more external microcode decoding units (13)...

A synthetic gene which comprises, in the coding strand, codons for the amino acids of a desired peptide in tandem repeat is disclosed. A process for the production of such a synthetic gene which comprises the self-assembly and ligation and optionally repair of a plurality of appropriate oligonucleotides, the assembly to give the repeating character being achieved by self-complementary overlapping ...

Macrolides of formula (I): wherein R is hydrogen or acyl, and wherein Q is hydrogen or a mycarosyl group of formula: wherein R<1> is hydrogen or acyl; provided that when Q is hydrogen, R is acyl; can be prepared by the submerged aerobic cultivation of Streptomyces fradiae NRRL 12201 and are useful as intermediates in the preparation of other macrolides such as tylosin.

An antibiotic complex designated herein as BBM-1675 complex is produced by fermentation of certain novel strains of Actinomadura verrucosospora. The complex may be separated into two major components, BBM-1675A1 and A2, and four minor components, BBM-1675 A3, A4, B1 and B2, and such components exhibit both antimicrobial activity and antitumor activity.

Disclosed is a process for purifying Tylosin by selective adsorption of the fermentation broth previously brought to 7.5-10.0 pH on polymeric resins and by subsequent deadsorption of the purified product with a aqueous-alcoholic or aqueous-acetonic solution and further purification of the eluate by filtration through macroreticular weak anion resins.

Macrolides PTL-448 A and B, which can be prepared by aerobic cultivation of Streptomyces ambofaciens ATCC 15154 in the presence of a macrolide intermediate selected from protylonlide, 5-O-mycaminosylprotylonolide, 20-hydroxy-5-O-mycaminosylprotylonolide and 20-oxo-5-O-mycaminosylprotylonodide, and macrolides PTL-448 C and D, which can be prepared by acidic hydrolysis of PTL-448 A and B are useful ...

An improved method of machining the raceway of a roller bearing race for cylindrical rollers having two concentric cylindrical surfaces with one surface being the raceway and the other cylindrical surface being the seating surface of the roller bearing race comprising elastically compressing the seating surface to assume an exactly cylindrical shape, shaping the raceway surface by chip removal int...