Abstract: A method is provided for contactless optical detection of yarn at a workstation of a textile machine. The yarn moves in a sensing slot between a radiation source and an optical sensor having at least one row of radiation sensitive elements. Shading of the individual radiation sensitive elements by yarn moving through the slot is monitored and a state of the yarn is evaluated based on the monitoring, which includes monitoring and evaluating a position of the yarn in the sensing slot or a time course of the position of the yarn in the sensing slot. A change is detected in the position or in the time course corresponding to a yarn break before an end of the yarn break passes through the sensing slot. When the yarn break is sensed, a stop signal is generated for the workstation.

Abstract: A method is provided for contactless optical detection of yarn at a workstation of a textile machine in which the yarn moves in a sensing slot between a source of radiation and an optical sensor having at least one row of radiation sensitive elements, whereby shading of the individual radiation sensitive elements by yarn moving through the sensing slot is monitored and a state of the yarn is evaluated on a basis of the monitoring. The method monitors and evaluates a position of the yarn in the sensing slot or a time course of the position of the yarn in the sensing slot. A change is detected in the position or in the time course of the position of the yarn in the sensing slot corresponding to a yarn break before an end of the yarn break passes through the sensing slot. When the yarn break is sensed, a stop signal is generated for the workstation.

Abstract: A method is provided for adjustment of a textile machine workstation based on yarn parameters measured by an associated yarn quality sensor at the work station. The method generates a first reference value of a selected yarn parameter by measurement of the yarn parameter or by calculation, wherein the first reference value is generated from the yarn parameter for a deliberately defective yarn intentionally produced at the workstation. The method then compares a current value or second reference value of the yarn parameter for yarn produced at the workstation of production quality or higher-than-production quality to the first reference value.

Abstract: A method of adjustment of a workstation and a yarn clearer (yarn quality sensor (9)) at a workstation of a textile machine, in which measurement and/or calculation creates a reference value (PR) of a particular parameter of yarn (1), to which the current value (PP) of the particular parameter measured is compared during the continuous production of yarn. The reference value of the particular yarn parameter is determined as the reference value of (PfR) of the particular yarn parameter of deliberately defective yarn (1) intentionally produced at the particular workstation and subsequently it is compared to the current and/or reference value (PP, P0, PPR, P0R) of the particular parameter of yarn (1) produced at the particular workstation with production quality or higher than production quality.

Abstract: For applications as nutrient for field plants, vegetables, fruit trees and vines, and for decomposition of organic materials, like straw, composts, wood scraps and municipal wastes there is prepared a liquid fertilizer comprising from 10 up to 65% of mass of dry matter of organic residues and up to 50% of mass of dissolved urea and/or agrochemical matter containing phosphorus, the agrochemical matter being preferably in a form of suspended particles.

Abstract: A gas-air mixing valve using a tube. The valve has an internal geometry shape for directing the flow of air and gas, including an air inlet, an inlet part from the inlet to a throttle, a gas inlet slot proximate the throttle, and an outlet. The inlet part has a first body part, preferably of aluminum or other metal, and a replaceable molded part normally of plastic. The first body part has an inlet surface centered about a central axis defined by a concave surface having a first circular cross section. The replaceable molden part has a composite surface defined by conical surface defined by conical surface having a linear cross section and further defined by a convex surface having a second circular cross section forming the throttle. The replaceable molden outlet part has a conical surface extending from the second circular cross section to a second convex surface at the outlet.