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Certain points in the development and practice of modern American Locomotive Engineering

โœ Scribed by Francis E. Galloupe

Publisher
Elsevier Science
Year
1877
Tongue
English
Weight
400 KB
Volume
103
Category
Article
ISSN
0016-0032

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โœฆ Synopsis

The formula by which to calculate the strength of the cylindrical shell of a steam boiler, though very simple, is quite important, and may be thus deduced :._i ~~ Let the figure represent a section or ring .... of the boiler whose internal radius is r inches ; thickness t, in fractions of an inch; and its. d length, perpendicular to the plane of the paper, ~ 01 ~Y'-one inch or unity. Let this thin hollow cylinder be under an internal pressure, the intensity F.~~--~' of which is p pounds per square inch, and let "~d. . f be the ultimate tenacity of the material. This stress, p, is everywhere normal to the circumference, and the lines which represent its direction, of which there would be an infinite number, all radiate from the centre O.

The resistance of the material to this stress acts everywhere in a direction perpendicular to the direction of the stress p, or tangential to the circumference.

Consider the stress resisted by the cross-sections at d and d ~.

๐Ÿ“œ SIMILAR VOLUMES

Certain points in the development and pr
Certain points in the development and practice of modern American locomotive engineering
โœ Francis E. Galloupe ๐Ÿ“‚ Article ๐Ÿ“… 1877 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 534 KB

but which was never made, can be compared to these last results.] And finally, there was tested a series of higher forks, Broadwoods' medium c 535, and others, of which Sir M. Costa's Philharmonic Wind Band Concerts of c 542"5, and Broadwoods' high-pitch c 545"2 are examples. The above statements h

Certain points in the development and pr
Certain points in the development and practice of modern American locomotive engineering
โœ Francis E. Galloupe ๐Ÿ“‚ Article ๐Ÿ“… 1877 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 708 KB

ALv~'Its parts consist of a starting valve A, the w~,. steam pipe B, conical ,H receiving, combining, and delivery tubes, Z%"i# "~" shown respectively at b, e, and e, in the sectional view, the steam spindle L water regulating handle/=/, water supply pipe G, overflow pipe E, the delivery pipe \_D,

Certain points in the development and pr
Certain points in the development and practice of modern American locomotive engineering
โœ Francis E. Galloupe ๐Ÿ“‚ Article ๐Ÿ“… 1877 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 767 KB

Now this is diminished by the volume of the internal staying, and, although it was supposed that this would be inconsiderable, a correction was made for this. The arrangement of these stays caused the quantities by which the capacity was to be corrected, to be of two kinds. First, a constant correct

Certain points the development and pract
Certain points the development and practice of modern American locomotive engineering
โœ Francis E. Galloupe ๐Ÿ“‚ Article ๐Ÿ“… 1877 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 464 KB

The resistance of the atmosphere also varies as the square of the speed. The train displaces a volume of air somewhat wider than the cars, which it carries along with it, and which causes an additional resistance by its friction against the surface of the ground. The following are the directions a