منابع مشابه
Quality of Yarns Produced by Japanese Open-End BD-200 Spinning Machines and of Final Products
Yarns produced by Japanese Open-end BD-200 spinning machines give these major advantages: (1) They are somewhat stronger than yarns spun by Czecho BD-200's. (2) They are almost as strong as yarns spun by ring spinning machines. This strength is obtainable without raising the cost of raw cotton if the right fore-spinning processes and spinning conditions are used. (3) They have maximum strength ...
متن کاملSpinning eggs—which end will rise?
We examine the spinning behavior of egg-shaped axisymmetric bodies whose cross sections are described by several oval curves similar to real eggs with thin and fat ends. We use the gyroscopic balance condition of Moffatt and Shimomura and analyze the slip velocity of the bodies at the point of contact as a function of u, the angle between the axis of symmetry and the vertical axis, and find the...
متن کاملSpinning Particles on Spacelike Hypersurfaces and their Rest-Frame Description
A new spinning particle with a definite sign of the energy is defined on spacelike hypersurfaces after a critical discussion of the standard spinning particles. They are the pseudoclassical basis of the positive energy (12 , 0) [or negative energy (0, 12)] parts of the ( 1 2 , 1 2) solutions of the Dirac equation. The study of the isolated system of N such spinning charged particles plus the el...
متن کاملA Breakage-Stop System for Linen Wet Spinning Frame
A multi-way control system for spun yarn breakage detecting and tow stopping is presented for linen wet spinning frame upgrade in medium-sized businesses of southeastern China. The signals from periodic rotations of spun yarns are picked by piezoelectric sensors. After input protection and multiplexers, the weak voltage signal from gated channel is processed through links including voltage foll...
متن کاملA Statistical Analysis of Yarn Breakage on Spinning Frame
The problem of yarn breakage during spinning is quite serious, but it is difficult to predict the number of yarn breakages, because the tension and strength of the yarn always vary. The author has used simple mathematical models of the variation of the tension and the strength of the yarn, and calculated the probability of yarn breakages. The result has shown that the variation of the yarn stre...
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ژورنال
عنوان ژورنال: Journal of the Textile Machinery of Japan - Proceedings -
سال: 1967
ISSN: 1883-8731
DOI: 10.4188/transjtmsj1965a.20.p932