BOLSA EXPANDIBLE ESTANCA A LOS GASES.COMPRENDE DOS COMPONENTES DE GENERACION DE GAS COMPARTIMENTADOS POR SEPARADO, QUE AL MEZCLARSE POR SEPARADO GENERAN GAS, HACIENDO QUE LA BOLSA (20) SE DILATE GRADUALMENTE; DENTRO DE LA BOLSA EXISTE UN MIEMBRO MECANICAMENTE ROMPIBLE QUE CONTIENE DISOLVENTE Y UNA DE DICHAS COMPONENTES (19). LAS BOLSAS SE PRODUCEN DE FORMA CONTINUA A PARTIR DE MATERIALES ALIMENTAD...

Waste water having undergone anaerobic fermentation is treated by reduction of partial pressure of carbon dioxide (by reduction of the gas pressure above the surface of the waste water or by stripping by carbon dioxide - free gas) in order to decompose calcium bicarbonate and precipitate calcium carbonate. The resulting water poor in calcium is used to dilute waste water ricn in calcium before ana...

UN METODO PARA INHIBIR LA EXPANSION EN HUMEDO EN EL ESTADO ENDURECIDO DE UN SISTEMA DE CEMENTO.SE EFECTUAN LAS SIGUIENTES OPERACIONES: 1.O) MEZCLAR LOS SIGUIENTES COMPONENTES: A-UN CEMENTO ALUMINOSO; B-YESO; C-UN INHIBIDOR DE LA CONTRACCION DE SECADO PARA FORMAR UNA MEZCLA DE POLVO SECA. 2.O) AÑADIR A LA MEZCLA UNA SAL DE LITIO PARA FORMAR UNA MIXTURA. 3.O) MEZCLAR LA MIXTURA CON AGUA SUFICIENTE P...

A vibration-damping arrangement comprises a chamber (22) containing gas at a pressure above atmospheric pressure. Vibrations from a machine (33) are supplied to a wall section (23) made of flexible rubber or the like and a rigid section (36) is in contact with the person to be protected. To achieve a pressure rise in the chamber corresponding to the amplitude of the vibrations, the flexible sectio...

alpha -Bromo diethylcarbonate is used to prepare ethylcarbonyloxyethyl esters of penicillins and caphalosporins. The amino group in ampicillin can first be protected by reaction with an acetoacetate derivative and the protecting group removed after the esterification step. alpha -Bromo diethylcarbonate can be used without an esterification catalyst and is obtained by reacting acetaldehyde with ca...

Implants (50) may be placed in animals in the field with a system including an implanter (10) and cartridge-like container (30) for a plurality of implants. The cartridge is transparent and encloses a plurality of elongated implants arranged side-to-side, transverse to the longitudinal axis of the cartridge. The implants may be moved manually (33) along the longitudinal axis of the cartridge towar...

PROCEDIMIENTO Y APARATO DE PLASMAFERESIS POR FILTRACION.LA PLASMAFERESIS CONSISTENTE EN LA SEPARACION DEL PLASMA DEL RESTO DE LA SANGRE, SE LLEVA A CABO POR FILTRACION CON RENDIMIENTO ELEVADO DURANTE PERIODOS PROLONGADOS, LLEVANDO LA SANGRE SOBRE UNA SUPERFICIE DE MEMBRANA Y, DE FORMA CICLICA, PASAR PLASMA A TRAVES DE ELLA A UNA VELOCIDAD CRECIENTE, HASTA QUE SE OBTIENE EL NIVEL UMBRAL, PARA EN ES...

A cap heat-sealing apparatus for paper containers comprises a vertically movable head, a fixed pressing member provided on the bottom surface of the head, a pair of divided movable pressing members arranged around the fixed pressing member and connected to the head so as to be horizontally movable toward or away from the fixed pressing member, and a heating high-frequency coil attached to the head...

A cap heat-sealing apparatus for paper containers comprises a vertically movable head, a fixed pressing member provided on the bottom surface of the head, a pair of divided movable pressing members arranged around the fixed pressing member and connected to the head so as to be horizontally movable toward or away from the fixed pressing member, and a heating high-frequency coil attached to the head...

A blind bolt for securing workpieces including a sleeve, pin and lock collar, and generally being of the non-sleeve-expanding type (i.e., non-hole-filling), and adapted to have said sleeve in clearance in openings, said pin adapted to form a bulbed head on the sleeve shank, a pin stop defined by engageable shoulders on pin and said sleeve, a lock pocket defined by a conical bore portion in said sl...

In a roller shutter, for sealing the drawn-up armour (20) at the inlet into the roller shutter (12), there is arranged on the end strip (26) of the armour (20), extending over its entire width, an upwardly directed sealing edge for contact against a longitudinal edge (40) of the inlet opening (30) of the roller shutter box (12), and, between the actuating member for the roller shutter and the seal...

A device and method for use in forming an access port, and also in forming a leakproof seal between a conduit (e.g., a catheter tube) and a thermoplastic film (e.g., the wall of an ostomy bag, wound cover pouch, or similar pouch). The device includes internal and external coupling rings adapted to be locked together with a collar of film material clamped therebetween. An elastomeric nipple has an ...

Hot glass is thermally toughened by generating a stream of closely-packed, aerated particles, and projecting that stream towards the glass. A plurality of such streams are projected from an array of nozzles, and the velocity of projection of each stream is sufficient to ensure that the integrity of the stream is preserved in its trajectory towards the glass.

The invention relates to a method of differentiated rate of hardening of a glass sheet by blowing a cooling gas in the direction of this sheet having two zones from nozzles. According to the invention, a simultaneous solidification of the glass sheet is produced at both zones of the sheet in spite of the differentiated treatments applied to establish a difference of hardening between the different...

A method for minimizing the amount of nitrogen oxide pollutants produced in a process for firing a furnace using oxygen or an oxygen-enriched gas as the oxidant, in which furnace gases are aspirated into the oxidant jet prior to combustion and in which the furnace is operated using alternating low firing rate and high firing rate periods, by delaying the injection of oxidant at the high rate at th...

GATO PARA FRENO DE CORONA O DE DISCO, POR EJEMPLO DE UNA RUEDA DE VEHICULO.UN PRIMER PISTON (6) CON UN PASO (64) PARA EL FLUIDO HIDRAULICO, Y UN SEGUNDO PISTON (5) SE DESLIZAN EN EL CUERPO (2) DEL GATO. EL PROLONGAMIENTO (7) DEL PRIMER PISTON (6) SE DESLIZA EN UNA GUIA (56) Y ACCIONA AL EMPUJADOR MOVIL (4) DEL GATO. UNA JUNTA (59) OBTURA EL PASO (64) CUANDO EL PRIMER PISTON (6) TOCA AL SEGUNDO (5)...

METODO Y APARATO PARA LA RECIRCULACION DE LOS GASES DE COMBUSTION EN UNA CALDERA DE COMBUSTIBLE SOLIDO. EL CUERPO PRINCIPAL DE LA CALDERA (40) INCLUYE UNA CAMARA DE COMBUSTION (36), UN LECHO DE COMBUSTIBLE (34) SOPORTADO POR UNA PARRILLA (34K), UN CONDUCTO PARA LOS PRODUCTOS DE COMBUSTION (38), UNA SECCION DE TRANSFERENCIAS TERMICAS DE CONVECCION (10), UN CONDUCTO DE HUMOS (11) CON UN REGULADOR DE...

A cable core advances through an extruder head and then past an ultrasonic test set. In the extruder head, an annular plastic jacket is formed about the core. The test set generates four signals which correspond in magnitude to the jacket thickness in orthogonally spaced quadrants of the jacket. The signals are then applied to apparatus for centering the core with respect to the extruder head. Add...

This invention relates to a catalyst comprising an inert material impregnated or coated with a mixture or alloy of platinum and rhodium in which rhodium is present in an amount up to 20 wt.%. The catalyst is particularly suitable for use in 1) catalytically reducing an oxide of nitrogen in a gaseous stream, 2) the oxidation of an organic compound in a gas also containing oxygen and 3) the preparat...