The Mechanics' Handbook: A Convenient Reference Book for All Persons Interested in Mechanical Engineering, Steam Engineering, Electrical Engineering, Railroad Engineering, Hydraulic Engineering, Bridge Engineering, EtcInternational Textbook Company, 1904 - 218 σελίδες |
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Σελίδα xvi
... Switch . Point or split .. Stub . stub , To lay out . Systems , Annunciator . Table , Long - ton .. Miscellaneous . 103 106 215 219 220 221 .173 , 174 219 29 25 219 6 10 263 212 226 224 150 216 228 305 19 5 .276-326 276 280 1 2 315 315 ...
... Switch . Point or split .. Stub . stub , To lay out . Systems , Annunciator . Table , Long - ton .. Miscellaneous . 103 106 215 219 220 221 .173 , 174 219 29 25 219 6 10 263 212 226 224 150 216 228 305 19 5 .276-326 276 280 1 2 315 315 ...
Σελίδα 245
... switches , fixtures , etc. , wires must be separated from gas pipes or parts of the building by porcelain , glass , or other non - inflammable insulating tubing , ( e ) and should be left in such a way as not to be disturbed by the ...
... switches , fixtures , etc. , wires must be separated from gas pipes or parts of the building by porcelain , glass , or other non - inflammable insulating tubing , ( e ) and should be left in such a way as not to be disturbed by the ...
Σελίδα 246
... switches on such loops should be double - poled . Wires must not be fished ( a ) for any great distance , and ( b ) ... switch when it is changed ; otherwise the stands of switches , where powerful currents are used , must be made of ...
... switches on such loops should be double - poled . Wires must not be fished ( a ) for any great distance , and ( b ) ... switch when it is changed ; otherwise the stands of switches , where powerful currents are used , must be made of ...
Σελίδα 247
... switch is changed . Motors . - Wires for motors should be run exactly as for lamps on similar circuits . On low - tension circuits , where motors are run in multiple , safety catches must be used on each side of the circuit . On high ...
... switch is changed . Motors . - Wires for motors should be run exactly as for lamps on similar circuits . On low - tension circuits , where motors are run in multiple , safety catches must be used on each side of the circuit . On high ...
Σελίδα 252
... Switch . Controlling Bot . Series Motor . Series Reversing Motor . Starting Box . Starting Box . Shunt Motor . Reversing Switch Shunt Reversing Motor . In the diagrams showing the connections of dynamo- electric machines 252 ELECTRICITY .
... Switch . Controlling Bot . Series Motor . Series Reversing Motor . Starting Box . Starting Box . Shunt Motor . Reversing Switch Shunt Reversing Motor . In the diagrams showing the connections of dynamo- electric machines 252 ELECTRICITY .
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Συχνά εμφανιζόμενοι όροι και φράσεις
amperes armature battery beam boiler bolts center of gravity center of percussion change gear chord deflection circle circuit column headed corresponding cubic cylinder decimal point Diam diameter difference divided draw dynamo electromotive force engine enrolled equal feet formula fraction frog distance gauge gear h given number heat Hence horsepower inertia iron lead screw Leclanché cells length mantissa mean effective pressure measured moment of inertia motor multiplied number of teeth number of threads obtained ohms P. P. TABLE perpendicular pipe piston pitch pounds pressure produce pulley quantities quotient radius radius of gyration rail resistance root rope shaft shown in Fig side significant figures square inch steam subtracted surface switch TABLE Continued tangent deflection temperature three figures tion triangle turnout curve valve velocity vertical volts weight wire wrought iron Zinc
Δημοφιλή αποσπάσματα
Σελίδα 2 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30| square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. mi.) Cubic Measure 1728 cubic inches (cu.
Σελίδα 3 - TROY WEIGHT. 24 grains (gr.) 1 pennyweight (pwt.) 20 pennyweights, 1 ounce (oz.) 12 ounces ... 1 pound (Ib.) Troy weight is used in weighing gold, silver, precious stones, etc. APOTHECARIES
Σελίδα 3 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt.) 4 quarts = 1 gallon (gal...
Σελίδα 2 - SURVEYORS' SQUARE MEASURE. 144. This measure is used by surveyors in computing the area or contents of land. TABLE. 625 Square Links (sq. 1. ) make 1 Pole P. 16 Poles " 1 Square Chain . sq. ch. 10 Square Chains " 1 Acre A. 640 Acres " 1 Square Mile . . sq. mi. 36 Square Miles (6 miles square)
Σελίδα 2 - CUBIC MEASURE 1728 cubic inches (cu. in.) = 1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu.
Σελίδα 6 - Measures of Capacity 10 milliliters (ml) =1 centiliter cl 10 centiliters =1 deciliter dl 10 deciliters =1 liter 1 10 liters =1 dekaliter Dl 10 dekaliters =1 hektoliter HI 10 hektoliters =1 kiloliter Kl NOTE — The liter is equal to the volume occupied by 1 cubic decimeter.
Σελίδα 25 - This is called the total heat of vaporization, or simply total heat. It is plain that the total heat is the sum of the heat of the liquid and the latent heat. That is, total heat = heat of liquid + latent heat.
Σελίδα 42 - To Divide One Number by Another, Subtract the logarithm of the divisor from the logarithm of the dividend, and obtain the antilogarithm of the difference.
Σελίδα 5 - 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 189 - Fig. /», the valve is shown In its extreme position at the right. The distance marked m is the maximum port opening. It matters not whether the outer edge of the valve travels beyond the inner edge of the port or falls short of it, as in the...