A Treatise on the Construction and Operation of Wood-Working Machines: Including a History of the Origin and Progress of the Manufacture of Wood-Working Machinery
A Treatise on the Construction and Operation of Wood-Working Machines: Including a History of the Origin and Progress of the Manufacture of Wood-Working Machinery
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. 1872 Excerpt: ... the fact that in a new machine started for experiment no oil would enter the bearings. The spindles, lj-fr inch diameter, were making some 2500 revolutions a minute, in bearings of brass, 7 inches long, having a central inlet for oil drilled through the shell and communicating with helical grooves for distribution. ...
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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. 1872 Excerpt: ... the fact that in a new machine started for experiment no oil would enter the bearings. The spindles, lj-fr inch diameter, were making some 2500 revolutions a minute, in bearings of brass, 7 inches long, having a central inlet for oil drilled through the shell and communicating with helical grooves for distribution. The oil when poured in was ejected with an appearance of being blown out by force. The manager accounted for it from the position or direction of the oil-way leading to the bearing, which upon examination and change confirmed his views. The front side of the hole, technically speaking, was on a radial line from the centre of the Bhaft, and for reasons which would hardly seem sufficient for the result, the oil was ejected. A slight change, so that it led in the direction in which the surface of the bearing was moving, produced an effect just the opposite. The oil was drawn into the bearing with an inductive force that suggested a pneumatic vacuum. This is-alluded to as one of the apparently trifling things which in most kinds of machines have no importance, and yet in high speeds cannot without serious results be neglected. It was of course con. tingent upon the speed of the spindle, which either by centrifugal, or some strange capillary influence, attracted or repelled the oil. This peculiarity is illustrated in a special kind of bearing for shafting, patented and manufactured by Lane and Badley, engineers, of Cincinnati, United States. There is below the matrix of the shaft an oil-cell formed in the casting from the bearing, and communicating with this oil-cell are drilled a number of small holes, say, not more than one-sixteenth of an inch in diameter. These holes, although we are not able to assert the fact from personal knowledge, are no dou...
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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 A Treatise on the Construction and Operation of Wood to cart. $35.99, 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 A Treatise on the Construction and Operation of Wood to cart. $37.39, 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 A Treatise On the Construction and Operation of Wood to cart. $42.76, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2022 by Legare Street Press.
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Add this copy of A Treatise On the Construction and Operation of Wood to cart. $40.73, 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 A Treatise on the Construction and Operation of Wood to cart. $39.49, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2015 by Sagwan Press.
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