 ... operating any such factory or workshop to provide the necessary fans or blowers to be connected with...  Annual Report - Página 6de Illinois. Dept. of Factory Inspection - 1898Visualização completa - Sobre este livro
 | International Association of Factory Inspectors - 1893 - 828 páginas
...will produce a velocity of air in such suction or discharge pipes of at least 9,000 feet per minute or an equivalent suction or pressure of air equal to...raising a column of water not less than five inches high in a U-shaped tube. All branch pipes must enter the main trunk pipe at an angle of 45 degrees... | |
 | 1908 - 1132 páginas
...produce a velocity of air in such suction or discharge pipes of at least nine thousand feet per minute or an equivalent suction or pressure of air equal to...raising a column of water not less than five inches high in a U-snaped tube. All branch pipes must enter the main trunk pipe at an angle of forty-five... | |
 | Illinois. General Assembly. House of Representatives - 1897 - 1432 páginas
...be run at such a rate of speed as will produce a velocity of air in such suction or discharge pipes of at least nine thousand feet per minute, to an equivalent...a column of water not less than five inches, in a U-shaped tube. All branch pipes must enter the main trunk pipe at an angle of forty-five degrees or... | |
 | 1898 - 1026 páginas
...set forth, which shall bo run at a rate of speed as will produce a velocito «f air in such snction or discharge pipe of at least nine thousand feet per...raising a column of water not less than five inches iu a U-shaped tube. All branch pipes must enter the main-trunk pipe at an angle of forty-five degrees... | |
 | Ohio - 1898 - 804 páginas
...be run at a rate of speed such as will produce a velocity of air in such suction or discharge pipes of at least nine thousand feet per minute to an equivalent...raising a column of water not less than five inches in a U-shaped tube. All branch pipes must enter the main trunk pipe at an angle of forty-five degrees or... | |
 | Michigan. Bureau of labor and industrial statistics - 1898 - 240 páginas
...produce a velocity of air in such suction or discharge pipes of at least 9,000 feet per minute, or an equivalent suction or pressure of air equal to...raising a column of water not less than five inches high in a U-shaped tube. All branch pipes must enter the main trunk pipe at an angle of 45 degrees... | |
 | New York (State). Office of Factory Inspectors - 1898 - 846 páginas
...produce a velocity of air in such suction or discharge pipes of at least 9,000 feet per minute, or an equivalent suction or pressure of air equal to raising a column of water not lese than 5 inches high in a U-shaped tube. All branch pipes must enter the main trunk pipe at an angle... | |
 | Michigan - 1899 - 704 páginas
...• » , i : • iL af • or blowers. discharge pipes of at least nine thousand feet per minute or an equivalent suction or pressure of air equal to...raising a column of water not less than five inches high in a U-shaped tube. All branch pipes must enter the main trunk pipe at an angle Branch pipes,... | |
 | Great Britain. Parliament. House of Commons - 1901 - 826 páginas
...of speed such as will produce a velocity of air in such suction or discharge pipes of at least 9,000 feet per minute to an equivalent suction or pressure...air equal to raising a column of water not less than 5 inches in a U-shaped tube. All branch pipes must enter the main trunk pipe at an angle of 45° or... | |
 | Illinois. Dept. of Factory Inspection - 1903 - 614 páginas
...rate of speed as will produce a velocity of air in such suction or discharge pipes of at least 9,000 feet per minute to an equivalent suction or pressure...raising a column of water not less than five inches in a U-shaped tube. All branch pipes must enter the main trunk pipe at an angle of 45 degrees or less, the... | |
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