The present invention is directed to a polyester/amide membrane, its preparation and its use for organic liquid separation. The polyester/amide membrane is made by reacting a dianhydride with a polyester diol in a 2:1 to 1.05:1 mole ratio to end cap the diol to produce a prepolymer which is reacted with excess thionyl chloride to convert all of the unreacted anhydride and all carboxylic acid group...

Matière à mouler contenant des fibres réfractaires, utilisable dans la fabrication de pièces ablatables, procédé pour sa fabrication et ses applications. DESCRIPTIF L'invention a pour objet une matière à mouler thermodurcissable, contenant des fibres réfractaires, caractérisée en ce qu'elle peut être moulée par injection et se présente sous forme de "flock" essentiellement constitué de 60 à 30 % e...

A bag (10) having a substantially rectangular cross section as manufactured using a conventional bag machine contains a quantity of popcorn kernels (24). A base (28) supports the bag (10) on edge with at least one joining panel (126) being inclined such as, for example, at 45o. Whether the bag (10) is initially unfolded or unfolds as a result of internal pressure caused by some kernels popping, a ...

What is described is an apparatus for welding the sealing joint (23) on a package (24) consisting at least partially of plastic-coated paper, with a welding tool having jaws (25, 28) and counterjaws, with a mounting and with a drive device (1) for generating the pressure force. So that two welding tools (25, 25a) are employed and actuated simultaneously and essentially identical pressure forc...

It is common practice to apply a shrink sleeve to a weld joint in a pipeline. The success of such application depends upon the ability to transport equipment from joint to joint and the adaptability of the heating apparatus to a variety of pipe sizes. A relatively simple apparatus for meeting the above defined requirements includes a skeletal frame (1) carried by rollers (10) for moveably supporti...

A burner for the production of synthesis gas by partial oxidation of carbon-containing fuels, which burner contains three or more concentrically arranged tubes and a cooling chamber. The downstream face of the cooling chamber is clad with a layer composed of individual, adjacently arranged, ceramic platelets.

Methods for characterizing and distinguishing reticulocytes and mature red blood cells use reagent compositions which include organic cationic dyes for staining the reticulocytes in the blood sample and buffer solutions for maintaining a pH of about 6 to about 9. The dyes may be the blue absorption dyes Oxazine 750 or New Methylene Blue. When a zwitterionic surfactant is included in the reagent co...

Methods for characterizing and distinguishing reticulocytes and mature red blood cells use reagent compositions which include an organic cationic dye for staining the reticulocytes in the blood sample and a buffer solution for maintaining a pH of about 6 to about 9. The dyes may be the red excitable fluorescent dye Oxazine 750, or the blue excitable fluorescent dyes Acridine Orange or derivatives ...

The aerial has a number of telescopic sections with a terminal fitting (11) attached to the outermost section (10) exhibiting a sprung bead (13) projecting outwards to fit into a locating recess provided by an insulation sleeve (15), for securing the aerial in position. Pref. the recess has a locking nose (14) at the rear of the bead (13), the insulation sleeve (15) having peripherally spaced axia...

A yarn take-up machine capable of decreasing vibration at the time of elevating frame resonance and operating at a wide range of take-up speeds from low to high speeds. Bobbin holders for holding a bobbin to package winding are mounted on a machine frame and a frame member for holding a touch roller rotating in contact with the bobbin holders is supported on the machine frame. In this take-up mach...

An apparatus for making a nonwoven web has a carding drum (1), a continuously moving, air-permeable collecting surface member (2) for collecting fibers which fly in an entraining air stream from the carding drum (1), a suction box (4), connected to the collecting surface member (2), and a suction duct (3) extending between the collecting surface member and a peripheral portion of the carding drum ...

In a double spindle type NC lathe, between a first spindle 4 for a first machining step and a second spindle 5 for a second machining step is interposed a third tool carriage 7 which can operate simultaneously with a first 3 or a second 6 tool carriage for the first or the second machining step. The third tool carriage operates with either the first or second tool carriage which requires a longer ...

The vessel (1) for perfusion liquids of the type which is closed at one extremity (4) and having a filling orifice (6) at the other (5) with a zone (8) for the insertion of a syringe or abstraction needle of the catheter supply tube, the vessel (1) being characterized by having incorporated therein integrally and inviolably a microfilter (7) for wet filtration preventing the passage of air under a...

A reserve-surface cleaning apparatus is used in combination with a ring-spinning machine having a longitudinally extending row of spindles each adapted to hold a roving sleeve and each formed below the respective sleeve with a respective reserve winding area and a longitudinally extending frame extending along a back side of the row and a service area extending along a front side of the row. The c...

The link has a front part (11) to which is movably connected an ear-piece (23) together with a spring element (30), such parts being connected to one another removably and exchangeably without fixture means. The end (20) of the ear-piece is connected by the flexible pressure of the spring element (30) with a hook (10) of the front part (11), whereby the spring element inserted in a blind hole is b...

Automatic device for grouping together and placing in packets individually packaged plaster strips of the type incorporating gauze wadding, comprising conveyor belts arranged in sequence with said packaged plaster strips positioned horizontally and displaced in a vertical position by means of release, with guided falling, onto a conveyor track, between the segments of which the packaged plaster st...

Luminous indication system for electric locks, characterized in that it comprises a circuit (2) connected in series to an alternating supply voltage, suitable to allow the predominantly unidirectional flow of the current and to generate a constant voltage at its ends during said flow, the coil (6) of the electromagnet and a first rectifier diode (8), said circuit (2) comprising a diode (3) which i...

The protective anti-shock jacket (1) for instruments (2) for personal and professional use, in particular for portable remote control units, is of the structurally monolithic type made in elastomer material, and exhibits in its inferior wall 8 one or more windows or slits (9, 10) destined to reduce tension on the other walls, which tension is relative to the elastic reaction of the material of the...

PCT No. PCT/IT92/00051 Sec. 371 Date Jun. 3, 1994 Sec. 102(e) Date Jun. 3, 1994 PCT Filed May 15, 1992 PCT Pub. No. WO93/10845 PCT Pub. Date Jun. 10, 1993.A valve operated catheter for urinary incontinence and retention comprises a flexible duct (2) designed to be inserted in the patient's urethra, the catheter provided with a spiral shaped end portion (12), having a plurality of holes (16) for th...

Wall safe comprising a box-like body (1) which defines the safe containment compartment and is structured so that it can be walled and anchored in a wall; the box-like body is provided with means (21-28) for the removable fixing of a frame (18) to which the door (20) which closes the front opening of the safe and includes the lock (36) is articulated; these means can be accessed only through the f...