Handbook of Building Construction: Data for Architects, Designing and Constructing Engineers, and Contractors ...George A. Hool, Nathan C. Johnson McGraw-Hill Book Company, Incorporated, 1920 - 1474 páginas |
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Página 807
... less difficult in preparation , is one in which the allowances are expressed in hours of labor rather than in terms of value . It recognizes the theory that the rate of wages applying to any particular locality is generally on a more or ...
... less difficult in preparation , is one in which the allowances are expressed in hours of labor rather than in terms of value . It recognizes the theory that the rate of wages applying to any particular locality is generally on a more or ...
Página 809
... less may be a 61⁄4 × 9 ; for a 3000 - lb . hammer or less , a 71⁄2 X 10 engine ; and for a 4500 - lb . hammer or less , an 81⁄2 X 10 engine . Where a steam pile hammer is to be used , a separate 81⁄2 X 10 hoist should be used , and a ...
... less may be a 61⁄4 × 9 ; for a 3000 - lb . hammer or less , a 71⁄2 X 10 engine ; and for a 4500 - lb . hammer or less , an 81⁄2 X 10 engine . Where a steam pile hammer is to be used , a separate 81⁄2 X 10 hoist should be used , and a ...
Página 853
... less the friction of the guides , and the pull to unwind the line from the drum . The other method is to attach the line to a block which contains fingers or triggers which automatically release the hammer at a desired height . Here the ...
... less the friction of the guides , and the pull to unwind the line from the drum . The other method is to attach the line to a block which contains fingers or triggers which automatically release the hammer at a desired height . Here the ...
Página 854
... less , and the number of blows per minute is greater than in the single acting hammer , but in beavy driving the ... less injury is caused to adjacent buildings by cracking of plaster , breaking of glass , etc ; ( 4 ) the life of the ...
... less , and the number of blows per minute is greater than in the single acting hammer , but in beavy driving the ... less injury is caused to adjacent buildings by cracking of plaster , breaking of glass , etc ; ( 4 ) the life of the ...
Página 866
... less scaffolding than do the heavier and wider carts , so that the cost of this runway must be carefully estimated . When runways must be elevated , the showing becomes more favorable for carts , as bents or supports for wheelbarrows ...
... less scaffolding than do the heavier and wider carts , so that the cost of this runway must be carefully estimated . When runways must be elevated , the showing becomes more favorable for carts , as bents or supports for wheelbarrows ...
Outras edições - Ver tudo
Handbook of Building Construction: Data for Architects, Designing and ... George A. Hool,Nathan C. Johnson Visualização integral - 1920 |
Handbook of Building Construction: Data for Architects, Designing and ... George A. Hool,Nathan Clarke Johnson Visualização integral - 1920 |
Handbook of Building Construction: Data for Architects, Designing and ... George A. Hool,Nathan C. Johnson Visualização integral - 1920 |
Palavras e frases frequentes
ammonia amount amperes architect average bars boiler brick building calcined candle power capacity cement circuit coat color column compressive compressive strength concrete connection construction contract contractor cost diameter door drain elastic limit electric elevator engine estimated feet finish fixtures floor flue foot foot-candles gage glass grade gray iron gypsum heat hydrated lime illumination inches installed iron joints lamp lath length less light lime limestone load machine manufacture material metal method mortar motor operation outlet paint pile pipe placed plaster plumbing Portland cement pounds pressure proper pump quantity radiation reciprocating engine reinforced roof sand sewer sheet specific gravity specifications square standard steam steel stone strength structural stucco surface Table tank temperature tensile strength terra cotta thickness tile timber trap usually vacuum valve velocity vent wall weight width wire wood
Passagens conhecidas
Página 1390 - Portland cement is the product obtained by finely pulverizing clinker produced by calcining to incipient fusion an intimate and properly proportioned mixture of argillaceous and calcareous materials, with no additions subsequent to calcination excepting water and calcined or uncalcined gypsum.
Página 1398 - If the percentage of elongation of any tension test specimen is less than that specified in Sec. 8(a) and any part of the fracture is outside the middle third of the gage length, as indicated by scribe scratches marked on the specimen before testing, a retest shall be allowed.
Página 1390 - The cement shall be stored in such a manner as to permit easy access for proper inspection and identification of each shipment, and in a suitable weather-tight building which will protect the cement from dampness.
Página 1398 - The inspector representing the purchaser shall have free entry, at all times while work on the contract of the purchaser is being performed, to all parts of the manufacturer's works which concern the manufacture of the material ordered.
Página 1242 - place of employment," shall mean and include every place, whether indoors or out, or underground, and the premises appurtenant thereto where either temporarily or permanently any industry, trade or business, is carried on, or where any process or operation, directly or indirectly related to any industry, trade or business, is carried on, and where any person is directly or indirectly employed by another for direct or indirect gain or profit but shall not include any place where persons are employed...
Página 891 - In cases where timbers do not contain the pith and it is impossible to locate it with any degree of accuracy, the same inspection shall be made over 3...
Página 890 - ... and is so fixed by growth or position that it will retain its place in the piece.
Página 1392 - If any test specimen shows defective machining or develops flaws, it may be discarded and another specimen substituted. (c) If the percentage of elongation of any tension test specimen is less than that specified in Section 5 (a) and any part of the fracture is more than % in.
Página 1393 - Section 4, which represent rejected material, shall be preserved for two weeks from the date of the test report. In case of dissatisfaction with the results of the tests, the manufacturer may make claim for a rehearing within that time.
Página 1062 - Work, and will endeavor to guard the Owner against defects and deficiencies in the Work of the Contractor.