Abstract: The invention relates to a network of communicating survey nails (10) that each comprise an active radiofrequency identification beacon, comprising: a stand-alone electrical power source for powering a transmitter and a storage means; the storage means for storing a unique identifier and nail position data; the transmitter of a radiofrequency signal compliant with an RFID protocol comprising said unique identifier and said nail position data, the transmitter comprising an antenna. The invention also relates to a device (30) for recording topography, which comprises at least three nails (10) and a georeferencing device (36) comprising: a first communication means (361) using an RFID protocol, for receiving the radiofrequency signal comprising the unique identifier and the position data of each nail; and a triangulation means (363) configured to calculate the position of the georeferencing device with respect to the position of the three nails.

Abstract: A perforating device capable of perforating a process for perforating a fluid duct having a connector seat with a tapped barrel. The device generally includes a hollow cylindrical body, a cutting apparatus, a fluid passage and a valve. The cylindrical body has an internal volume, a longitudinal axis, a first open end, a second end opposite the first, and a threaded external surface. The cylindrical body can be threadingly received or retracted within the barrel such that the cylindrical body moves along the barrel toward or away from the fluid duct. The cutting apparatus is operably coupled to an end of the cylindrical body and is adapted to cut the duct by screwing the body into the barrel. The valve seals the internal volume of the cylindrical body in response to a differential pressure between the interior of the duct and the ambient atmosphere to prevent leakage from the duct.

Abstract: A perforating device capable of perforating a process for perforating a fluid duct having a connector seat with a tapped barrel. The device generally includes a hollow cylindrical body, a cutting appartus, a fluid passage and a valve. The cylindrical body has an internal volume, a longitudinal axis, a first open end, a second end opposite the first, and a threaded external surface. The cylindrical body can be threadingly received or retracted within the barrel such that the cylindrical body moves along the barrel toward or away from the fluid duct. The cutting apparatus is operably coupled to an end of the cylindrical body and is adapted to cut the duct by screwing the body into the barrel. The valve seals the internal volume of the cylindrical body in response to a differential pressure between the interior of the duct and the ambient atmosphere to prevent leakage from the duct.

Abstract: Method in which the following operations are carried out: a) digging an exploration hole (8) in order to open up a main pipeline (2) which has an upper edge (10) which extends at an upper level (12) which is substantially constant relative to the ground (6), b) using a branch connection (14) which has a support surface (16) and a shaft (18) to which the branch pipe is connected, c) positioning the support surface (16) of the branch connection (14) against the main pipeline (2) so that the shaft (18) is below the upper level (12) of the main pipeline (2), d) fixing the branch connection (14) to the main pipeline (2), e) placing the branch pipe and the main pipeline (2) in communication, f) refilling the exploration hole (8), whilst keeping the branch pipe below the upper level (12) of the main pipeline (2).

Abstract: Method in which the following operations are carried out: a) digging an exploration hole (8) in order to open up a main pipeline (2) which has an upper edge (10) which extends at an upper level (12) which is substantially constant relative to the ground (6), b) using a branch connection (14) which has a support surface (16) and a shaft (18) to which the branch pipe is connected, c) positioning the support surface (16) of the branch connection (14) against the main pipeline (2) so that the shaft (18) is below the upper level (12) of the main pipeline (2), d) fixing the branch connection (14) to the main pipeline (2), e) placing the branch pipe and the main pipeline (2) in communication, f) refilling the exploration hole (8), whilst keeping the branch pipe below the upper level (12) of the main pipeline (2).

Abstract: A novel process for the preparation of 17.beta.-hydroxyacetyl-17.alpha.-ol-steroids of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms optionally substituted with halogen or an oxygen or nitrogen function and alkenyl and alkynyl of 2 to 4 carbon atoms, R.sub.2 is alkyl of 1 to 4 carbon atoms and the A,B,C and D rings may contain one or more double bonds and are optionally substituted with at least one member of the group consisting of hydroxy, keto, halogen, alkyl and alkoxy of 1 to 4 carbon atoms and alkenyl and alkynyl of 2 to 4 carbon atoms which compounds are generally known of the cortisonic type with known properties.

Abstract: Non-toxic, pharmaceutically acceptable acid addition salts of a compound of the formula ##STR1## wherein R is an alkyl of 2 to 12 carbon atoms and R' is selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms and acyl of an organic carboxylic acid of 1 to 12 carbon atoms having antilipolytic activity and a very prolonged vasodilatatory activity.

Abstract: Novel thiazole derivatives of the formula ##STR1## wherein R is alkyl of 2 to 12 carbon atoms and R.sub.1 is selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms and acyl of an organic carboxylic acid of 1 to 12 carbon atoms having hypolipemiant activity with a very prolonged vasodilatatory activity and their preparation.

Abstract: Novel 2-hydroxymethyl-thiazole-5-carboxylic acid derivatives of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, alkylcarbonyl of 2 to 5 carbon atoms, benzoyl, phenyl optionally substituted with at least one halogen and ##STR2## R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen and alkyl of 1 to 3 carbon atoms, Z is selected from the group of phenyl and phenoxy optionally substituted with at least one halogen and R' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and alkali metals, alkaline earth metals and aluminum salts, having a marked hypolipemiant activity as well as a clear vasodilatatory activity and which may possess hypocholesterolemiant activity and their preparation.

Abstract: Novel thiazole derivatives of the formula ##EQU1## wherein R is alkyl of 2 to 12 carbon atoms and R.sub.1 is selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms and acyl of an organic carboxylic acid of 1 to 12 carbon atoms having hypolipemiant activity with a very prolonged vasodilatatory activity and their preparation.