Report of InvestigationsU.S. Department of the Interior, Bureau of Mines, 1919 - Mineral industries |
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Page 3
... volume . This results in a concrete that is highly stressed . Both Malhotra ( 18 ) and Dale and Ludwig ( 11 ) have commented on the low freeze - thaw resistance of sulfur mortars . Temperature variations have caused some sulfur ...
... volume . This results in a concrete that is highly stressed . Both Malhotra ( 18 ) and Dale and Ludwig ( 11 ) have commented on the low freeze - thaw resistance of sulfur mortars . Temperature variations have caused some sulfur ...
Page 5
... volume of 16.4 ml while the orthorhombic form has a density of 2.07 g / ml at 20 ° C and an atomic volume of 15.5 ml . Conversion of the sulfur from the monoclinic to the orthorhombic form on cooling and aging induces stresses because ...
... volume of 16.4 ml while the orthorhombic form has a density of 2.07 g / ml at 20 ° C and an atomic volume of 15.5 ml . Conversion of the sulfur from the monoclinic to the orthorhombic form on cooling and aging induces stresses because ...
Page 2
... volume required for inflation . Most metal mine airways range in cross section from 50 ft2 to 110 ft2 , although some are as large as 2,000 ft2 . The cross sections can have a vari- ety of shapes . A 12 - foot - diameter cylinder , a 12 ...
... volume required for inflation . Most metal mine airways range in cross section from 50 ft2 to 110 ft2 , although some are as large as 2,000 ft2 . The cross sections can have a vari- ety of shapes . A 12 - foot - diameter cylinder , a 12 ...
Page 3
... volume required to inflate a 12 - foot sphere , in an unconfined state , is 904 ft3 to fill it to ambient pressure . Test results showed an additional 40 ft is needed to raise the internal pressure to 12 inches water gage . STOPPING ...
... volume required to inflate a 12 - foot sphere , in an unconfined state , is 904 ft3 to fill it to ambient pressure . Test results showed an additional 40 ft is needed to raise the internal pressure to 12 inches water gage . STOPPING ...
Page 9
... volume of packing material is needed to properly fill the gaps in the corners and around pipes and other obstructions , but even with the corners packed , there is still substantial air leakage across the stoppings . With packing , the ...
... volume of packing material is needed to properly fill the gaps in the corners and around pipes and other obstructions , but even with the corners packed , there is still substantial air leakage across the stoppings . With packing , the ...
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Popular passages
Page 3 - An acid plant was installed in 1929 to treat •Underlined numbers in parentheses refer to items in the list of references at the end of this report.
Page 3 - Needless to say, this contractor did not submit a bid. "(10) (Reference to specific trade names is made for identification only and does not imply endorsement by the Bureau of Mines...
Page 10 - API, is pumped to storage. 3Reference to specific makes or models of equipment is made to facilitate understanding and does not imply endorsement by the Bureau of Mines.
Page 11 - Haynes, WP, JJ Elliott, AJ Youngblood, and AJ Forney. Operation of a Sprayed Raney Nickel Tube-wall Reactor for Production of a High-Btu Gas.
Page 34 - Prediction of Laminar Flow and Heat Transfer in Helically Coiled Pipes,
Page 9 - Kissell, FN. CM McCulloch, and CH Elder. The Direct Method of Determining Methane Content of Coalbeds for Ventilation Design.