PDF⋙ Woolen and worsted spinning; a complete working guide to modern practice in the manufacture of woolen and worsted yarns and felt, including the ... of the raw material, and the machinery and by American School of

Woolen and worsted spinning; a complete working guide to modern practice in the manufacture of woolen and worsted yarns and felt, including the ... of the raw material, and the machinery and by American School of

Woolen and worsted spinning; a complete working guide to modern practice in the manufacture of woolen and worsted yarns and felt, including the ... of the raw material, and the machinery and by American School of PDF, ePub eBook D0wnl0ad

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 edition. Excerpt: ...and makes necessary the use of two upright shafts RR, and the train of gears connected with them. With pulleys running at a speed of 190 revolutions per minute the speed of the circle would be approximately one revolution per minute. 190 X 28 X 15 X 20 X 20 X 17 340 60 X 20 X 38 X 35 X 347 = 347 The diameter of the circle being forty-eight inches the actual speed of the circle would be: „ 340 48 X 3 X 3= which equals approximately 148 inches per minute. The fallers, nip, and carrying comb are all geared together by equal sized gears so that their motion is positive and they all move in unison. They are driven by a belt from the pulley Y, of fourteen inches diameter, to the pulley U which is ten inches in diameter. To find the number of fallers dropped, and oscillations of nip and ccrrying comb, per minute: 190 X 28 X 14 XJ2 10241 00 X 10 X 72 = 270 which equals approximately 38. As the pitch of the top screw is f-inch the speed at which the fallers travel would be 38 X f which equals approximately twentyfour inches per minute. The amount of wool passing through the feed rolls would be: 10241 X 20 X 13 X 11 00,..--270 X 60 X 80 A So it will be seen that there is practically no draft between the back rolls and the fallers. The output of the front or drawing off rolls E would be: 100 X 28 X6'.. 5o mches per mmute. which gives the comb a draft of 24T7r 557-f-22iV-24-V Note: Circumference of fluted feed rolls. The above calculations show that the circle makes approximately one revolution per minute, which gives a surface traverse of one hundred forty-eight inches per minute to the pins of the circle; while the nip and carrying comb will deliver to the circle thirty-eight fringes of wool, each sixteen inches wide, per minute. Each fringe of wool...

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