Questions and Answers from the American Machinist |
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Questions and Answers from the American Machinist (Classic Reprint) Frank Richards No preview available - 2017 |
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50 pounds acid angle atmosphere babbitt metal belt boiler brass cast iron cent clearance compression computing condenser cool crank pin cubic feet cubic foot cut-off cylinder degrees depth difference distance divide drawing driving equal feet per minute flue foot-pounds formula friction gear give given globe valve hardening heat hight hole horse-power inches diameter increase lathe lead lead screw length line shaft machine mean effective pressure melting metal molds multiplied number of teeth number of threads ordinary packing phosphor bronze pipe piston pitch circle plate pounds gage pounds of coal pounds of water pounds per square pounds pressure practice pulley pump Q.-Please Q.-What Q.-Will quantity radius result revolutions per minute rule rust screw shaft side speed square inch steam pressure steel stroke surface surface condenser tank taper temperature tool tubes valve velocity weight wheel zinc
Popular passages
Page 201 - Find also the area of the triangle, formed by the chord of the segment and the two radii of the sector.
Page 245 - Every body continues in a state of rest, or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Page 213 - The ribs or plates for iron ships are immersed in a cleansing bath of equal parts of sulphuric or muriatic acid and water, used warm ; the works are then hammered, and scrubbed with emery or sand. to detach the scales and to thoroughly clean them ; they are then immersed in a preparing bath...
Page 94 - Sir," said I, after puzzling a long time over "more requiring more and less requiring less" — "will you tell me why I sometimes multiply the second and third terms together and divide by the first — and at other times multiply the first and second and divide by the third?" "Why, because more requires more sometimes, and sometimes it requires less — to be sure. Haven't you read the rule, my boy?" " Yes, sir, I can repeat the rule, but I don't understand it.
Page 96 - Rub the surface of the metal with rotten stone and sweet oil, then rub off with a piece of cotton flannel, and polish with soft leather. A solution of oxalic acid rubbed over tarnished brass soon removes the tarnish, rendering the metal bright. The acid must be washed off with water, and the brass rubbed with whiting and soft leather. A mixture of muriatic acid and alum dissolved in water imparts a golden color to brass articles that are steeped in it for a few seconds.
Page 13 - Multiply one-sixth of the lowest tensile strength found stamped on any plate in the cylindrical shell by the thickness — expressed in inches or parts of an inch — of the thinnest plate in the same cylindrical shell, and divide by the radius or half diameter — also expressed in inches...
Page 183 - French thermal unit, or calorie) is that quantity of heat which is required to raise the temperature of one pound of pure water through one degree Fahr. at or near 39.1° Fahr., the temperature of maximum density of water. As employed in general practice, the term is usually abbreviated to
Page 113 - The circular pitch is the distance from the center of one tooth to the center of the next tooth, measured along the pitch circle.
Page 201 - So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.
Page 233 - ... or appears like the white of eggs. Apply it warm. Buff the grain off the leather where it is to be cemented, rub the joint surfaces solidly together, let it dry a few hours and it is ready for practical use, and if properly put together it will not need riveting, as the cement is nearly of the same nature as the leather itself.