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" Multiply the sectional area of the bottom flange in inches by the depth of the beam in inches, and divide the product by the distance between the supports also in inches; and 514 times the quotient equal the absolute strength of the beam in cwts. The... "
The Mechanic's, Machinist's, and Engineer's Practical Book of Reference ... - Σελίδα 139
των Charles Haslett - 1855
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A Compendium of Natural Philosophy: Adapted to the Use of the General Reader ...

Denison Olmsted - 1837 - 374 σελίδες
...are to each other as the diameters of their sections. The strongest form, therefore, in which a given quantity of matter can be disposed, is that of a hollow cylinder. From this proposition Galileo justly concludes, that Nature in a thousand operations greatly augments...

An Introduction to Natural Philosophy: Designed as a Text Book, for ..., Τόμος 1

Denison Olmsted - 1838 - 376 σελίδες
...: ag, that is, as the diameters of their sections. The strongest form, therefore, in which a given quantity of matter can be disposed, is that of a hollow cylinder; and, leaving out of view the diminished rigidity of their structures or fabrics, there would seem to be...

An Introduction to Natural Philosophy: Designed as a Text Book, for the Use ...

Denison Olmsted - 1844 - 618 σελίδες
...: ag, that is, as the diameters of their sections. The strongest form, therefore, in which a given quantity of matter can be disposed, is that of a hollow cylinder; and leaving out of view the diminished rigidity of their structures or fabrics, there would seem to be...

The operative mechanic's workshop companion, and the scientific gentleman's ...

William Templeton (engineer.) - 1845 - 210 σελίδες
...the quotient equal the absolute strength of the beam in cwts. The strongest form in which any given quantity of matter can be disposed is that of a hollow...when the thickness of the annulus or ring amounts to yth of the cylinder's external diameter ; the relative strength of a solid to that of a hollow cylinder...

A Compendium of Natural Philosophy: Adapted to the Use of the General Reader ...

Denison Olmsted - 1846 - 454 σελίδες
...are to each other as the diameters of their sections. The strongest form, therefore, in which a given quantity of matter can be disposed, is that of a hollow cylinder. From this proposition Galileo justly concludes, that Nature in a thousand operations, greatly augments...

The Practical Engineer's Pocket Guide: Containing a Concise Treatise on the ...

1847 - 190 σελίδες
...times the quotient equal the absolute strength of the beam in cwtsThe strongest form in which any given quantity of matter can be disposed is that of a hollow...cylinder being as the diameters of their sections A Table showing the Weight or Pressure a Beam of Cast Iron, 1 inch in breadth, will sustain, without...

Scientific Agriculture: Or, The Elements of Chemistry, Geology, Botany and ...

Miles M. Rodgers - 1848 - 306 σελίδες
...the largest in the middle and taper regularly towards both ends. The strongest form in which a given quantity of matter can be disposed, is that of a hollow cylinder: this, however, is true only when the transverse sections of the cylinder are perfectly circular. In...

The Mechanic's Text-book and Engineer's Pocket Guide: Containing a Concise ...

Thomas Kelt - 1849 - 424 σελίδες
...in which any given quantity of matter can he disposed is that of a hollow cylinder ; and it has boen demonstrated that the maximum of strength is obtained...the thickness of the annulus, or ring, amounts to ith of the cylinder's external diameter; the relative strength of a solid to that of a hollow cylinder...

The Practical Model Calculator: For the Engineer, Mechanic, Machinist ...

Oliver Byrne - 1852 - 598 σελίδες
...the quotient equal the absolute strength of the beam in cwts. The strongest form in which any given quantity of matter can be disposed is that of a hollow...when the thickness of the annulus or ring amounts to fth of the cylinder's external diameter ; the relative strength of a solid to that of a hollow cylinder...

The Practical Model Calculator, for the Engineer, Mechanic, Machinist ...

Oliver Byrne - 1852 - 604 σελίδες
...maximum of strength is obtained in cast iron, when the thickness of the annulus or ring amounts to fth of the cylinder's external diameter ; the relative...cylinder being as the diameters of their sections. The following table shows the greatest weight that ever ought to be laid upon a beam for permanent...




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