PURPOSE:An automatic charging and packing apparatus for closing and sewing the mouth, in a folded state, of such a sack that can not retain independently its posture when empty, and has insufficient strength at the mouth when closed and sewed after charging of a content, such as a cotton sack, for example.

PURPOSE:To prevent the rusting of a travelling clutch in unused time by operating a parking brake through interlocking the parking brake and a cut-off device so that the clutch is kept at a position of release when operating the parking brake for an agricultural tractor, etc. CONSTITUTION:When operating a parking brake lever 8, a brake pedal 3 is depressed first, the brake lever 8 is turned and oe...

A composite structure is disclosed which comprises a combination of heat treatable cemented carbides and alloy steel. The carbide phase in the cemented carbide is predominantly tungsten monocarbide, or solid solutions of tungsten monocarbide and molybdenum monocarbide, of stoichiometric composition. The binder in the cemented carbide is based on heat treatable low to medium alloy steel and contain...

A duplex transceiver comprises a receiver aerial and a transmitter aerial, a pair of balanced mixers each fed from the transmitter aerial and from the receiver aerial, a phase quadrature device interposed in a signal path between one of the aerials and a first one of the balanced mixers, a multiplier fed from the mixers, an oscillator/modulator arrangement feeding the transmitter aerial and phased...

A circuit for the detection of write errors in a memory with selectable byte addressing. The memory is capable of selectively writing bytes within a memory word by decoding control signals and address signals received from a processor. The decoder and transmission path of the control signals are checked by the processor generating incorrect parity for the bytes which are not to be written. The mem...

LE VERRE DE CONTACT 1 POUR L'OBSERVATION ET LE TRAITEMENT PAR UN FAISCEAU DE RAYONNEMENT COHERENT D'UN POINT DE TRAVAIL T DE L'OEIL, COMPREND PAR EXEMPLE UNE LENTILLE D'ENTREE 4 ACCOLEE A UNE LENTILLE DE CONTACT 5 DESTINEE A ETRE APPLIQUEE SUR LA CORNEE DE L'OEIL, LES AXES OPTIQUES 6 DESDITES LENTILLES ETANT CONFONDUS. LA SURFACE D'ENTREE DE LA LENTILLE D'ENTREE EST SPHERIQUE ET TRAVAILLE POUR ...

Chromogenic compounds of the formula I (I) and a process for their preparation are described, X denoting a hydrogen atom, a protective group customarily used in peptide chemistry or a group which irreversibly blocks the terminal amino group, A and P being identical or different and denoting an alpha-, beta- or gamma-amino acid which is composed of 2 to 15 carbon atoms with up to 3 nit...

The apparatus has an elongated washing tank (1), which has on one narrow side a material feed with subsequent washing zone (7) and agitator (13, 14) and on the other narrow side a removal zone (8), which is arranged upstream of an adjoining discharge device (25). The latter comprises a rotating screening drum (39), which is mounted transversely to the transporting direction of the products and con...

Disclosed is a process for preparing the glycoside antitumor anthracyclines 7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-daunomycinone (Ia); 4-demethoxy-7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-daunomycinone (Ib); 7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-adriamycinone (Ic); 4-demethoxy-7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-adriamycinone (Id); 7-0-(2,3,6-trideoxy-...

Disclosed is a process for preparing the glycoside antitumor anthracyclines 7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-daunomycinone (Ia); 4-demethoxy-7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-daunomycinone (Ib); 7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-adriamycinone (Ic); 4-demethoxy-7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-adriamycinone (Id); 7-0-(2,3,6-trideoxy-...

A multi-stage rotary processor for plastic and polymeric materials which are, or become in the course of processing, viscous liquids, including an annular housing, a rotor coaxial with and rotatable with respect to the housing and having a cylindrical surface in slidable sealing relation with the interior of the housing, a plurality of annular channels formed in the cylindrical surface and coopera...

LA PRESENTE INVENTION EST RELATIVE AU PROCEDE DE PREPARATION DE NOUVEAUX DERIVES DE L'HYDROXY-9 ELLIPTICINE.

L'INVENTION EST EGALEMENT RELATIVE AUX COMPOSES PREPARES SELON LE PROCEDE DE L'INVENTION ET A LEUR APPLICATION THERAPEUTIQUE ET TANT QU'AGENTS ANTI-TUMORAUX.

CES COMPOSES REPONDENT A LA FORMULE GENERALE I:
(CF DESSIN DANS BOPI)
DANS LAQUELLE R EST UN ATOME D'HYDROGENE OU UN GROUPE HYDROXY ET R EST UN ATOME D'HYDROGENE OU A LA FORMULE II:
(CF DESSIN DANS BOPI)
DANS LAQUELLE R EST UN ATOME D'HYDROGENE OU UN GROUPE HYDROXY ET R EST UN ATOME D'HYDROGENE OU UN GROUPE METHOXY. ON LES PREPARE PAR CONDENSATION DE DAUNOMYCINONE ET DE 4-DEMETH...

Disclosed is a process for preparing the glycoside antitumor anthracyclines 7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-daunomycinone (Ia); 4-demethoxy-7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-daunomycinone (Ib); 7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-adriamycinone (Ic); 4-demethoxy-7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-adriamycinone (Id); 7-0-(2,3,6-trideoxy-...

Disclosed is a process for preparing the glycoside antitumor anthracyclines 7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-daunomycinone (Ia); 4-demethoxy-7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-daunomycinone (Ib); 7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-adriamycinone (Ic); 4-demethoxy-7-0-(2,6-dideoxy- alpha -L-arabino-hexopyranosyl)-adriamycinone (Id); 7-0-(2,3,6-trideoxy-...

Cpds. of formula (I) and their salts are new. In (I) R is 2-7C alkyl or lower hydroxyalkyl. Pref. R is ethyl; 2-hydroxyethyl; n-hexyl; 4-hydroxybutyl; 2- or 3-hydroxypropyl, or S or R 3-hydroxybutyl. (I) are made from antibiotics X-14868A (i.e. the cpd. where R is H) by reaction with ROH in presence of ion-exchange resin, in acid form. The alcohol or diol may be used as solvent and is typically at...

Isomerization of xylenes admixed with other alkyl aromatics of at least eight carbon atoms is conducted at essentially atmospheric pressure at 800 DEG -1000 DEG F. with a zeolite like zeolite ZSM-5 of reduced acid activity.

1. A process for producing glucose dehydrogenase, consisting of cultivating a Bacillus strain in a culture medium and extracting the resultant enzyme, characterized in that the Bacillus strain is the mutant IFP 188 (ATC 39 118) and the culture is effected in the presence of glucose at a concentration of from 1 to 40 g/l.