Abstract:
A blower nozzle provided for the weft thread insertion is associated with the monolithic shed holder element for the weaving rotor of a series shed weaving machine. The shed holder element is manufactured from a piece of metal. The blower nozzle is integrated into the shed holder element and comprises at least one bore placed in the shed holder element.
Abstract:
An automated sample preparation system for chemical assay of samples of materials. The sample preparation system includes a sample preparation chamber which includes a removable cup for taking solid or very viscous samples to the sample preparation system. The cup may be attached in sealing relationship to a cap through which extends various utilities such as a mixer/grinder to grind solid samples and mix non-homogeneous samples, a fill pipe to pump in liquid samples, an effluent pipe in the sump of the cup to allow pumping of samples and solvents and a nozzle to allow liquids to be sprayed against the walls. A sample metering valve associated with the sample preparation chamber allows a known volume of sample to be isolated so that solvent may be pumped in to dilute the sample to a user defined concentration. A reversible pump is coupled by a pair of manifolds which are themselves coupled by solenoid operated valves to various sources of solvents, pressurized gas, vacuum, water, the sample preparation chamber and the assay system. A control system coordinates the operation of all remotely controllable units in the system to allow the user to customize various sample preparation processes.
Abstract:
There is disclosed a sample preparation chamber for a system for preparing samples of various compositions for assay by liquid chromatography. The sample preparation chamber is a container having a threaded cap and a threaded, lightweight, translucent plastic cup. A stirred/grinder shaft driven by a motor and connected to a propeller/grinder passes through the cap. The cap has a sloped bottom with a sump region, and a fill/empty pipe passes through the cap and has its outlet at or near the sump. A nozzle fill pipe arrangement allows the walls to be washed down as liquid is pumped into the cup. A second fill pipe with its outlet spaced up from the bottom of the cup is also used, and a sample metering valve having an inlet in said cup is present. The sample metering valve is used to isolate a known volume of the sample from the rest of the sample for release back into the cup after the remaining sample has been pumped to waste for purposes of diluting the known volume of sample to a known concentration.
Abstract:
There is disclosed a sample preparation chamber for a system for preparing samples of various compositions for assay by liquid chromatography. The sample preparation chamber is includes a container having a threaded cap and a threaded, lightweight, translucent plastic cup. A stirrer/grinder shaft driven by a motor and connected to a propeller/grinder passes through the cap. The cup has a sloped bottom with a sump region, and a fill/empty pipe passes through the cap and has its outlet at or near the sump. A nozzle/fill pipe arrangement allows the walls to be washed down as liquid is pumped into the cup. A second fill pipe with its outlet spaced up from the bottom of the cup is also used, and a sample metering valve having an inlet in said cup is present. The sample metering valve is used to isolate a known volume of the sample from the rest of the sample for release back into the cup after the remaining sample has been pumped to waste for purposes of diluting the known volume of sample to a known concentration.
Abstract:
Process for the at least partial liquefaction of a low-boiling gaseous mixture, which is under pressure, wherein the gaseous mixture is precooled in heat exchange with a vaporizing refrigerant, purified during the course of the precooling step, and, after the precooling step, is subjected to a preliminary separation, characterized in that the at least partial liquefaction of the gaseous fraction obtained during the preliminary separation is carried out in heat exchange with a vaporizing multicomponent gas, the partial liquefaction of which takes place by precooling, and the completed liquefaction and subcooling of which takes place in one stage against itself.
Abstract:
A series-shed loom with a weaving rotor (1) and laying-in members (2) which lay the warp threads (3) into high points and low points on the weaving rotor (1) to form the sheds, while the weaving rotor combs through the sheds (6) so formed to beat-up against a beater bar (8) of a meanwhile inserted weft yarn (7). Warp threads (3a, 3b) are laid into gaps (11) in the combs, while the low points (5) of one warp thread (3) are formed in gaps (11) which are in line in the direction of rotation (9). The high points (4) for one warp thread (3a, 3b) are formed by fins (12) which are in line in the direction of rotation and which form longitudinal saddles (13a, 13b) extending in the direction of rotation (9) between a beater nose (14) and a holder nose (15). To facilitate an interference-free laying in of two warp threads (3a, 3b) in one gap (11), the fin adjoining them on their left is assigned to the left-hand warp thread, and the fin adjoining them on their right is assigned to the right-hand warp thread for possible high points (4).
Abstract:
An automated sample preparation system for chemical assay of samples of materials. The sample preparation system includes a sample preparation chamber which includes a removable cup for taking solid or very viscous samples to the sample preparation system. The cup may be attached in sealing relationship to a cap through which extends various utilities such as a mixer/grinder to grind solid samples and mix non-homogeneous samples, a fill pipe to pump in liquid samples, an effluent pipe in the sump of the cup to allow pumping of samples and solvents and a nozzle to allow liquids to be sprayed against the walls. A sample metering valve associated with the sample preparation chamber allows a known volume of sample to be isolated so that solvent may be pumped in to dilute the sample to a user defined concentration. A reversible pump is coupled by a pair of manifolds which are themselves coupled by solenoid operated valves to various sources of solvents, pressurized gas, vacuum, water, the sample preparation chamber and the assay system. A control system coordinates the operation of all remotely controllable units in the system to allow the user to customize various sample preparation processes.
Abstract:
A weaving rotor of a series shed weaving machine provides a cover which forms a ring channel with the weaving rotor from a laying-in station up to the cloth edge in the direction of rotation. The ring channel is closed off by further covers, in the direction of rotation and at the side face where the weft arrives. Suction nozzles are mounted along the cloth edge which are dimensioned in such a manner that in spite of the air entering from the insertion and relay nozzles they produce a depression and a flow from the laying-in station to the cloth edge which prevents the deposition of fly. An additional suction nozzle at the arrival of the weft, which is placed in the direction of the weft insertion, additionally stabilizes the flow conditions in the ring channel.
Abstract:
A warp guiding device which includes a holding device for mounting a number of warp guide bars (23) and driving devices (24) for moving the warp guide bars is integrally constructed so that it can be brought into and out of operational connection with a weaving rotor of a series-shed weaving machine. The weaving machine includes an installation arrangement for receiving and securing the warp guiding device on the weaving machine.
Abstract:
The traversing shed loom has a shedding weaving rotor into which weft yarns are picked. The rotor has shedding elements and beating-up combs in which warp placing guides place warn yarns by moving transversely to the direction of rotor rotation. Most of the warp yarns are deflected transversely to the direction of rotation during shedding and the deflection is cancelled only by the shedding elements moving away before the beating-up of the weft so that the warp yarns are realigned. The beating-up combs have at least two warp yarns per occupied space. The position of guides, the geometry and position of the combs, the position of top shed guides and bottom shed guides and the warp yarn placing program are so adapted to one another that the streakiness, i.e., warp streakiness, is controllable.