Modern Sheet-metal Workers' Instructor: Practical Geometry, Mensuration, Properties of Metals and Alloys ...Drake, 1906 - 309 sider |
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Side 45
... hard . Thus no amount of polishing would make the natural surface of wood lustrous like that of iron , and no amount of polishing would make the surface of iron as lustrous as that of the harder steel . Metals not hard enough in ...
... hard . Thus no amount of polishing would make the natural surface of wood lustrous like that of iron , and no amount of polishing would make the surface of iron as lustrous as that of the harder steel . Metals not hard enough in ...
Side 51
... hard or soft , are alloys . So that for these and for other reasons a knowl- edge of the principles which underlie the union of dis- similar metals to form alloys is desirable . Whether alloys are true chemical compounds has been ...
... hard or soft , are alloys . So that for these and for other reasons a knowl- edge of the principles which underlie the union of dis- similar metals to form alloys is desirable . Whether alloys are true chemical compounds has been ...
Side 53
... hard- est . Beyond the last proportion , up to 5 parts of tin to 16 parts of copper , range the bell metal alloys , from 714 to 814 parts of tin to 16 parts of copper form spec- ulum metal . The alloys of copper with lead alone are used ...
... hard- est . Beyond the last proportion , up to 5 parts of tin to 16 parts of copper , range the bell metal alloys , from 714 to 814 parts of tin to 16 parts of copper form spec- ulum metal . The alloys of copper with lead alone are used ...
Side 59
... hard cold surface . To produce what is known as common tin , the metal passes at once to the moulds . Refined tin is the result of using better ores and lengthening the poling process . The purest metal in the mould is the upper portion ...
... hard cold surface . To produce what is known as common tin , the metal passes at once to the moulds . Refined tin is the result of using better ores and lengthening the poling process . The purest metal in the mould is the upper portion ...
Side 61
... hard that a file would not touch it , that is , would slide over it without marking it ; and that could have that hardness modified or tempered by further application of heat . But with the introduction of the Bessemer process of steel ...
... hard that a file would not touch it , that is , would slide over it without marking it ; and that could have that hardness modified or tempered by further application of heat . But with the introduction of the Bessemer process of steel ...
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Vanlige uttrykk og setninger
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Populære avsnitt
Side 5 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Side 21 - AB of the circle into as many equal parts as the polygon is to have sides. With the points A and B as centers and radius AB, describe arcs cutting each other at C.
Side 224 - To find the pressure in pounds per square inch of a column of water, multiply the height of the column in feet by .434. Approximately, we say that every foot elevation is equal to % Ib. pressure per square inch ; this allows for ordinary friction. To find the diameter of a pump cylinder...
Side 227 - To find the velocity in feet per minute necessary to discharge a given volume of water in a given time, multiply the number of cubic feet of water by 144 and divide the product by the area of the pipe in inches.
Side 43 - To find the. area of a triangle when the three sides are given. From half the sum of the three sides...
Side 10 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16. And this point is called the centre of the circle.
Side 5 - A plane angle is the inclination of two lines to one another in a plane, which meet together, but are not in the same direction.
Side 5 - A straight line is that which lies evenly between its extreme points.
Side 15 - A cone is a solid figure described by the revolution of a right-angled triangle about one of the sides containing the right angle, which side remains fixed.