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. 1918 Excerpt: ...into the number of teeth on the gear whose rate of speed you know. Thus, if a gear has 40 teeth and you want to know its speed when it meshes with another gear having 80 teeth which makeB 20 revolutions per minute, divide 40 into 80. The answer, 2, will be the number of times it revolves to every complete revolution of ...
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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. 1918 Excerpt: ...into the number of teeth on the gear whose rate of speed you know. Thus, if a gear has 40 teeth and you want to know its speed when it meshes with another gear having 80 teeth which makeB 20 revolutions per minute, divide 40 into 80. The answer, 2, will be the number of times it revolves to every complete revolution of the gear with 80 teeth; or 2 X 20, or 40, will be its number of revolutions per minute. Friction and What It Does.--There is no such thing as a perfectly smooth surface. Even a sheet of highly polished glass has minute elevations and depressions on it, and, chiefly, because of these, if you lay one sheet of glass on another and slip it along it takes force to overcome the resistance, or friction, as it is called. Now, while friction is a useful thing in our daily lives, since nails and screws would not hold and we could not walk and an automobile could not run without it, it is hard to contend with it in machinery, for it takes a lot of power to overcome it and this is wasted energy. The next best thing to do is to reduce the friction as much as possible, for this means to increase the efficiency of the machine. How to Reduce Friction.--There are two kinds of friction, and these are (1) sliding friction and (2) rolling friction. Where two surfaces slide on each other, one of them should be harder than the other to reduce the friction. Hence, steel shafts of machines are made to revolve in bronze or babbitt bearings. The friction between a rotating shaft and a fixed bearing is clearly sliding friction. The following are a couple of antifriction alloys: 'For bronze and babbitt write the Union Smelting and Refining Co., Avenue D and 14th Street, New York City. When a small quantity of phosphorus is added to the bronze alloy above, it forms what ...
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Add this copy of The Amateur Mechanic to cart. $21.61, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Amateur Mechanic to cart. $24.12, new condition, Sold by Paperbackshop International rated 5.0 out of 5 stars, ships from Fairford, GLOS, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Amateur Mechanic to cart. $33.22, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Amateur Mechanic to cart. $37.09, new condition, Sold by Paperbackshop International rated 5.0 out of 5 stars, ships from Fairford, GLOS, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Amateur Mechanic to cart. $27.00, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of The Amateur Mechanic to cart. $37.30, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of The Amateur Mechanic to cart. $27.00, good condition, Sold by Ed Buryn Books rated 2.0 out of 5 stars, ships from Nevada City, CA, UNITED STATES, published 1937 by Appleton-Century Co.
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VeryGood ex-HS Library copy else unmarked. Spine gilt is good, cover gilt worn away. How to make and use machines for the home (heaters, icemakers, steam engines, wind turbines, electrical, water, etc. Nice tight copy, clean contents, collectible antiquarian how-to. 5-1/4 x 7-3/4, 208 pp, index, b/w illus.
