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Power Transmission by Leather Belting (Paperback) Loot Price: R304
Discovery Miles 3 040
Power Transmission by Leather Belting (Paperback): Robert Thurston Kent

Power Transmission by Leather Belting (Paperback)

Robert Thurston Kent

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Loot Price R304 Discovery Miles 3 040

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 edition. Excerpt: ...will equal 240 lb. per square inch of cross-section for belt speeds; and for a belt driving a countershaft or one in any other inaccessible location, this sum will equal 160 lb. The maximum initial tension, that is, the tension under which the belt is put upon the pulley when it is placed in service and the tension to which it is to be retightened as often as it falls to the minimum, must be such that the above derived sum is 320 lb. for machine belts and 240 lb. for countershaft belts. These values represent the constant A in the mathematical discussion which follows and upon which are based the horsepower tables on pages 91 to 94. With the above facts in mind, we can now examine the formulae upon which the tables of horsepower and tension are based." The complete mathematical discussion of their development is contained in Mr/Barth's paper, "The Trans-, mission of Power by Leather Belting," heretofore referred to, and is there available for those who wish to follow it. Only the briefest possible explanation will be given here. NOTATION h = tension in the tight strand of the running belt, pounds per square inch. h = tension in the slack strand of the running belt, pounds per square inch. fo= minimum initial tension in the belt at rest on its pulleys, pounds per square inch. This is the tension to which the belt can be allowed to fall before retightening. tm=maximum initial tension in the belt at rest upon its pulleys, pounds per square inch. This is the tension to which the belt is retightened. tc=centrifugal tension in belt, or loss in effective tension due to centrifugal force, pounds per square inch. p = effective pull in belt, pounds per square inch. a = arc of contact of the belt on the smaller pulley, in radians =...

General

Imprint: Rarebooksclub.com
Country of origin: United States
Release date: April 2013
First published: April 2013
Authors: Robert Thurston Kent
Dimensions: 246 x 189 x 1mm (L x W x T)
Format: Paperback - Trade
Pages: 48
ISBN-13: 978-1-152-57188-4
Categories: Books > Humanities > History > General
Books > History > General
LSN: 1-152-57188-5
Barcode: 9781152571884

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