Ceramic Data Book

Εξώφυλλο
Industrial Publications, Incorporated, 1922
 

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Δημοφιλή αποσπάσματα

Σελίδα 187 - The area of the steam piston, multiplied by the steam pressure, gives the total amount of pressure that can be exerted. The area of the water piston, multiplied by the pressure of water per square inch, gives the resistance. A margin must be made between the power and the resistance to move the pistons at the required speed— say from 20 to 40 per cent., according to speed and other conditions.
Σελίδα 132 - The length, width and thickness of the bricks. 10. The collective weight of the ten large spherical shot used in making the test at the time of their last standardization. 11. The number and collective weight of the small spherical shot used in making the test at the time of their last standardization. 12. The total weight of the shot charge, after its last standardization. 13. Certificate of the operator that he examined the condition of the machine as to staves, liners...
Σελίδα 132 - Ib. (3.175 kg.) it shall be discarded and a new one substituted; provided, however, that all of the large spheres shall not be discarded and substituted by new ones at any single time, and that so far as possible the large spheres shall compose a graduated series in various stages of wear.
Σελίδα 194 - Paris fillet 1 in. wide shall be cast along the length of the crown of the pipe to equalize the lower bearing before the upper one is brought into contact. Both of the bearings shall be sufficiently rigid to transmit and receive uniform loads...
Σελίδα 195 - ... with lower surface a true plane, made of heavy timbers or other rigid material, capable of distributing the test load uniformly without appreciable bending. The test load shall be applied at the exact center of this top bearing plate, or in such manner as to produce uniform deflection throughout the full length of the pipe.
Σελίδα 150 - The cone shall be flattened, its apex being pressed down vertically with a shovel, or board, so that after the pile has been quartered, each quarter will contain the material originally in it. The flattened mass, which shall be of uniform thickness and diameter, shall then be marked into quarters (Figs.
Σελίδα 172 - Clay on thick beds, moderately dry 2 4 Clay, soft 1 2 Gravel and coarse sand, well cemented. . . 8 10 Sand, compact, and well cemented 4 6 Sand, clean, dry 2 4 Quicksand, alluvial...
Σελίδα 191 - After the test specimen has cooled to the room temperature, it shall be remeasured as before described, and the change in length recorded and reported as percentage of the original length.
Σελίδα 132 - Method of Selecting Samples. — In general, the buyer shall select his own samples from the material which the seller proposes to furnish. The seller shall have the right to be present during the selection of a sample. The sampler shall endeavor, to the best of his judgment, to select brick representing the average of the lot. No samples shall include bricks which would be rejected by visual inspection as provided in...
Σελίδα 160 - The test may be made without the use of a testing machine, by piling weights directly on a platform resting on the top bearing plate, provided, however, that the weights shall be piled symmetrically about a vertical line through the center of the pipe, and that the platform shall not be allowed to touch the top bearing frame.

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