The Coal Miner's Handbook: A Handy Reference Book for Coal Miners, Pit Bosses, Fire Bosses, Foremen, Superintendents, Managers, Engineers, and All Persons Interested in the Subject of Coal MiningInternaional Textbook Company, 1913 - 320 σελίδες |
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Σελίδα 5
... means of the accompanying tables , metric measures can be converted into English and vice versa , by simple addi- tion . All the figures of the values given are not required except in very exact calculations ; as a rule , 4 or 5 digits ...
... means of the accompanying tables , metric measures can be converted into English and vice versa , by simple addi- tion . All the figures of the values given are not required except in very exact calculations ; as a rule , 4 or 5 digits ...
Σελίδα 8
... mean girth and diameter , all dimensions being in feet . If length is given in feet and girth and diameter in inches , divide by 144 ; if all dimensions are in inches , divide by 1,728 . AREA OF ROUND TIMBER Girths Area Girths Area ...
... mean girth and diameter , all dimensions being in feet . If length is given in feet and girth and diameter in inches , divide by 144 ; if all dimensions are in inches , divide by 1,728 . AREA OF ROUND TIMBER Girths Area Girths Area ...
Σελίδα 24
... means . Quantities are in proportion by alternation when antecedent is compared with antecedent and consequent with ... means will equal the product of the extremes , thus , if 10 : 54 : 2 , then 5X4 10X2 . A mean proportional between ...
... means . Quantities are in proportion by alternation when antecedent is compared with antecedent and consequent with ... means will equal the product of the extremes , thus , if 10 : 54 : 2 , then 5X4 10X2 . A mean proportional between ...
Σελίδα 25
... means of an example ; therefore , the well - known rule for finding the horse- power of a steam engine will be taken . This rule may be stated as follows : Rule . - Divide the continued product of the mean effective pressure , in pounds ...
... means of an example ; therefore , the well - known rule for finding the horse- power of a steam engine will be taken . This rule may be stated as follows : Rule . - Divide the continued product of the mean effective pressure , in pounds ...
Σελίδα 26
... mean effective pressure X stroke ( in pounds per square inch ) ^ ( in feet ) area of piston number of strokes X ( in square inches ) ( per minute ) +33,000 . This expression can be greatly shortened by representing each quantity by a ...
... mean effective pressure X stroke ( in pounds per square inch ) ^ ( in feet ) area of piston number of strokes X ( in square inches ) ( per minute ) +33,000 . This expression can be greatly shortened by representing each quantity by a ...
Άλλες εκδόσεις - Προβολή όλων
The Coal Miner's Handbook International Correspondence Schools Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
The Coal Miner's Handbook International Correspondence Schools Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
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air-current airway alternating current anthracite battery brattice breast calculated carbon carbon monoxide cars cartridge chute circuit circular mils Coal Mining Course column Complete Coal Mining cosine cubic cylinder decimal diameter difference distance driven drum electric engine English English enrolled equal explosive face factor of safety feet firedamp formula friction gangway gauge given haulage head hoisting hole horsepower inclined inclined plane iron lamps length load logarithm longwall manway material mean effective pressure measure method miner motor multiplied P. P. TABLE pillar pipe pitch placed pounds pump rail resistance right angles roof rooms rope salary seam shaft sheave shown in Fig side sine slope specific gravity spiles split square inch station steam strands surface temperature thick timber triangle usually varies velocity ventilation vernier vertical water gauge weight wire
Δημοφιλή αποσπάσματα
Σελίδα 2 - Cubic Measure 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Σελίδα 3 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt.) 4 quarts = 1 gallon (gal.) 31| gallons = 1 barrel (bbl.) 2 barrels...
Σελίδα 320 - 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.
Σελίδα 319 - 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.
Σελίδα 4 - Measures of Length. 10 millimeters (mm.) 1 centimeter (cm.) 10 centimeters 1 decimeter (dm.) 10 decimeters 1 meter (m.) 10 meters 1 dekameter (Dm.) 10 dekameters 1 hectometer (Hm.) 10 hectometers 1 kilometer (Km.) 10 kilometers 1 myriameter (Mm.) 1181.
Σελίδα 53 - The square described on the hypotenuse of a rightangled triangle is equal to the sum of the squares described on the sides containing the right angle. Prop. 30. — If the square on one side of a triangle is equal to the sum of the squares on the other two sides, the angle contained by these two sides is a right angle.
Σελίδα 319 - 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.
Σελίδα 1 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30j square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Σελίδα 53 - The circumferences of circles are to each other as their radii, and their areas are to each other as the squares of their radii.
Σελίδα 52 - If two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the two triangles will be equal.