The Coal and Metal Miners' Pocketbook of Principles, Rules, Formulas, and TablesThomas J. Foster International Textbook Company, 1905 - 637 páginas |
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The Coal and Metal Miners'pocketbook of Principles, Rules, Formulas, and ... Thomas J. Foster Sin vista previa disponible - 2015 |
Términos y frases comunes
air-current airway alternating current amount amperes angle anthracite anthracite coal armature bituminous coal boiler bottom calculated cars chutes circuit circular mils coal column combustion Cosine Sine Cosine Cotang Tang Cotang Cotg cubic cylinder diameter discharge distance drill dynamo efficiency engine equal explosion feet firedamp flow foot formula friction gangway gases gauge given haulage head hoisting hole horizontal horsepower inches increased iron L.Tang lamp latitude and departure length load logarithm machines marsh gas material method mineral mines minute motor multiply pillars pipe plumb-bob pounds pressure pump pyrites quantity radius resistance rock roof rope seam shaft sheave side Sine Cosine Sine specific gravity speed split square station steam surface Tang Cotang Tang temperature timber tube usually varies velocity ventilation vertical volts water gauge weight wire wire rope
Pasajes populares
Página 265 - ... the pressure of the atmosphere on the surface of the mercury in the cistern.
Página 135 - British thermal unit (BTU) is the quantity of heat required to raise the temperature of 1 Ib. of water 1° F.
Página 365 - Repeat these measures alternately, deliberately, and perseveringly, about fifteen times in a minute, until a spontaneous effort to respire is perceived ; immediately upon which cease to imitate the movements of breathing, and proceed to induce circulation and warmth.
Página 365 - On the restoration of life, a teaspoonful of warm. water should be given; and then, if the power of swallowing has returned, small quantities of wine, -warm brandy and water, or coffee should be administered. The patient should be kept in bed, and a disposition to sleep encouraged.
Página 365 - Silvester's method, as follows : — Place the patient on the back on a flat surface, inclined a little upwards from the feet ; raise and support the head and shoulders on a small firm cushion or folded article of dress placed under the shoulder-blades.
Página 11 - RULE. I. Separate the given number into periods of two figures each, beginning at the right hand: the period on the left will often contain but one figure.
Página 63 - The law of all mechanics is— The power multiplied by the distance through which it moves, is equal to the weight multiplied by the distance through which it moves. Thus 1 Ib.
Página 15 - Find also the area of the triangle, formed by the chord of the segment and the two radii of the sector.
Página 12 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
Página 13 - The circumferences of circles are to each other as their radii, and their areas are to each other as the squares of their radii. Let C denote the circumference of one of j^ff \ B; the circles, R its radius 0A, A its area ; and let C...