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" The velocity in feet per minute should be ninetyeight times the square root of the length of the stroko in feet. The area of the steam passages will be as 4800 is to the velocity in feet per minute, so is the area of the cylinder to the area of the steam... "
The Mechanic's Calculator; Comprehending Principles, Rules, and Tables in ... - Page 297
by William Grier - 1836 - 344 pages
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The Repertory of patent inventions [formerly The Repertory of arts ..., Volume 6

1771 - 414 pages
...for cutting off the steam is stated to be at about half the stroke ; and then the rule becomes 100 times the square root of the length of the stroke in feet, for the best volocity in feet per minute, for the steam engine. The author is averse to high pressure...
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The Steam Engine: Comprising an Account of Its Invention ..., Volume 2, Part 1

Thomas Tredgold - Steam-engines - 1827 - 540 pages
...part of the stroke, and then when the steam acts at full pressure during the whole of the descent, the velocity in feet per minute should be ninety-eight...times the square root of the length of the stroke.* 343. — When the steam acts expansively, the velocity may lie found from -that of an expansive engine...
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The Repertory of Patent Inventions: And Other Discoveries and Improvements ...

Industrial arts - 1828 - 942 pages
...for cutting off the steam is stated to be at about half the stroke ; and then the rule becomes 100 times the square root of the length of the stroke in feet, for the best velocity in feet per minute, for the steam engine. The author is averse to high pressure...
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The Mechanic's Calculator: Comprehending Principles, Rules, and Tables in ...

William Grier - Mechanical engineering - 1836 - 384 pages
...low-pressure engine. — The length of the cylinder should be twice its diameter. The velocity of the piston in feet per minute should be ninety-eight times the square root of the length of the stroke. The area of the steam passages should be equal to the area of the cylinder, multiplied by the velocity...
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The Engineer's Common-place Book of Practical Reference, Consisting of ...

William Templeton - Steam-engines - 1839 - 182 pages
...minute, having neither respect to the force of the steam nor length of the stroke. And, 2. That 100 times the square root of the length of the stroke in feet equal the velocity in feet per minute. The following Table of Velocities is the result of practice...
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The Mechanic's Calculator: Comprehending Principles, Rules, and Tables in ...

William Grier - Mechanical engineering - 1842 - 320 pages
...lowpressure engine.—The length of the cylinder should be twice its diameter. The velocity of the piston in feet per minute should be ninety-eight times the square root of the length of the stroke. The area of the steam passages should be equal to the area of the cylinder, multiplied by the velo-...
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The Millwright and Engineer's Pocket Companion

William Templeton - Mathematics - 1846 - 518 pages
...minute, having neither respect to the force of the steam nor length of the stroke. And, 2. That 1 03 times the square root of the length of the stroke in feet equal the velocity in feet per minute. The following Table of Velocities is the result of practice...
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Improvement to Palmer's Endless Self-computing Scale and Key: Adapting it to ...

John E. Fuller - Ready-reckoners - 1846 - 82 pages
...the stroke in feet, is the best velocity in feet per minute. In engines not working expansively, 103 times the square root of the length of the stroke in feet, is the best velocity in feet per minute. To find the quantity of Water required for Steam .%nd Injection....
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Norris's Hand-book for Locomotive Engineers and Machinists

Septimus Norris - Locomotives - 1852 - 356 pages
...should be at least twice its diameterThe velocity of the piston, in feet per minute, should be 103 times the square root of the length of the stroke in feet ; or 100 times, if the steam is worked expansivelyThe area of the cylinder should be, to the area of...
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History of the steam engine, from the second century before the Christian ...

R. W., Robert Wallace - Steam-engines - 1852 - 146 pages
...by a fly, and the pressure on the piston be the same throughout the stroke, the best velocity is 120 times the square root of the length of the stroke in feet. 2. If the steam act expansively, the velocity is found by multiplying the logarithm of the reciprocal...
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