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. 1867 Excerpt: ...it receives the entire thrust of the shaft before the indication of the scale'is noted. Did the propeller and steam piston travel through the same distance in any given time, and were all the power applied to the piston transmitted to the water through the propeller, the total pressure upon the steam piston and the ...
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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. 1867 Excerpt: ...it receives the entire thrust of the shaft before the indication of the scale'is noted. Did the propeller and steam piston travel through the same distance in any given time, and were all the power applied to the piston transmitted to the water through the propeller, the total pressure upon the steam piston and the thrust of the propeller would be identical, but since such is never the case, we ascertain the theoretical thrust, thus: Total effective pressure on piston in lbs. x 2 length of stroke in ft. x No. of revols. per min. Pitch of propeller in feet x number of revolutions per minute. = Theoretical thrust in lbs. The difference between this and the actual thrust, shows the amount lost in friction of engines, propeller, and load, overcoming resistance to edge of propeller blades, working pumps, etc The loss from slip is independent of this. Strain upon a Screw Propeller-blade. We can best illustrate this by an example. Given, circumference of centre of pressure of a 3 bladed propeller, 30.9 feet; distance from hub to centre pressure 41 inches; pitch 22.5 feet; thrust 12T00 pounds: required, the strain upon each blade at the hub. SOLUTION. Let F G H be the development of the helix on a plane, draw B D at right angles to F H, and A E at right angles to G H. Trigonometri cally, we ascertain the angles at A and D to be each = 37 9', and at C and B to be each = 52 5', and the lengths of the lines A E, B D, to be relatively as 1.000 to 1.237. Now, inasmuch as the whole thrust can be supposed to be concentrated in the centre of pressure of the blade, and as the 12700 lbs. is in a line with the axis, it follows that, if the line A E represents the direction and amount of this thrust, the line B D, at right angles to the propeller blade at the centre of pressur...
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Add this copy of Lessons and Practical Notes on Steam to cart. $48.63, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 2016 by Wentworth Press.
Add this copy of Lessons & Practical Notes on Steam... to cart. $56.33, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 2010 by Nabu Press.
Add this copy of Lessons and Practical Notes on Steam the Steam Engine to cart. $62.00, new condition, Sold by Leather Book Shop rated 2.0 out of 5 stars, ships from Delhi, DELHI, INDIA, published 2015 by Facsimile Publisher.
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New in New jacket. {Size: 14.60 x 22.86 cms} Presenting an Exquisite Leather-Bound Edition, expertly crafted by the prestigious organization “Rare Biblio” with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2015, utilizing the invaluable guidance of the original edition published many years ago in 1862. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: -English, Pages: -190. If it is a multi-volume set, then it is only a single volume. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request.
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