Science and Industry, Հատոր 7Colliery Engineer Company, 1902 |
From inside the book
Արդյունքներ 100–ի 1-ից 5-ը:
Էջ iii
... Practical Gas Engineer . The Self - Propelled Vehicles Velocity Diagrams Clearance - 1 326 Practical Points on Lubricating Oils 602 Practical Marine Engineering 157 Pressure Tank for Cylinder Oil 200 381 158 Repairing a Steam Pump 549 ...
... Practical Gas Engineer . The Self - Propelled Vehicles Velocity Diagrams Clearance - 1 326 Practical Points on Lubricating Oils 602 Practical Marine Engineering 157 Pressure Tank for Cylinder Oil 200 381 158 Repairing a Steam Pump 549 ...
Էջ iv
... Practical Electricity . 326 Water Rheostats for Testing Purposes 540 Electrical Catechism , The .... 438 Calculation of Resistances in Series and in Wireless Telegraph Signals Across the Atlantic Wiring Calculations for Motor and Lamp ...
... Practical Electricity . 326 Water Rheostats for Testing Purposes 540 Electrical Catechism , The .... 438 Calculation of Resistances in Series and in Wireless Telegraph Signals Across the Atlantic Wiring Calculations for Motor and Lamp ...
Էջ ix
... Practical Arithmetic 381 Shear 251 Gas Engineer , The 326 Short Circuits , Location of Q. 69 165 Marine Engineering 157 Shower Bath , Construction of a Q. 200 390 Points on Lubricating Oils . 602 Simple Brick Drill , A 493 Pressure Tank ...
... Practical Arithmetic 381 Shear 251 Gas Engineer , The 326 Short Circuits , Location of Q. 69 165 Marine Engineering 157 Shower Bath , Construction of a Q. 200 390 Points on Lubricating Oils . 602 Simple Brick Drill , A 493 Pressure Tank ...
Էջ 14
... practical unit of capacity is the microfarad , or one one - millionth of the farad . In alternating - current work , capacity is usually met with in connection with 13 FIG 4 SCIENCE AND INDUSTRY long , overhead lines or underground ...
... practical unit of capacity is the microfarad , or one one - millionth of the farad . In alternating - current work , capacity is usually met with in connection with 13 FIG 4 SCIENCE AND INDUSTRY long , overhead lines or underground ...
Էջ 19
... practical to say which reach This will cause the cut - off valves to close at equal points in the strokes , and if the engine is in perfect order the area of the cards and the mean effective pressure indicated by each will be the same ...
... practical to say which reach This will cause the cut - off valves to close at equal points in the strokes , and if the engine is in perfect order the area of the cards and the mean effective pressure indicated by each will be the same ...
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Common terms and phrases
alternating current amount ampere-turns amperes angle armature battery belt binding post boiler brass carbon cent circuit circular mils coal coil condenser connected copper crosshead cut-off cylinder diagram diameter direct current direction distance dynamo efficiency electric electromotive force engine equal feedwater feet field fire flow force formula friction fuel furnace give given grate heater heating surface holes horsepower increase iron joint lamp length load machine machinery magnetic mean effective pressure means mechanical metal method motor necessary number of turns obtained ohms operation pipe piston plant plates pounds practical pressure pulley pump resistance revolutions per minute rheostat SCIENCE AND INDUSTRY Scranton shaft shown in Fig shunt side speed square inch steam steam engine steel stroke superheated switch tank temperature tion tubes turbine valve voltage voltmeter volts weight wheel winding wire
Սիրված հատվածներ
Էջ 632 - AH a unit of resistance, the international ohm, which is based upon the ohm equal to 109 units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.
Էջ 455 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it is compelled by force to change that state.
Էջ 512 - Every body continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it.
Էջ 258 - Bushings must be long enough to bush the entire length of the hole in one continuous piece, or else the hole must first be bushed by a continuous waterproof tube.
Էջ 240 - In the history of mechanical art two modes of progress may be distinguished — the empirical and the scientific. Not the practical and the theoretic, for that distinction is fallacious : all real progress in mechanical art, whether theoretical or not, must be practical. The true distinction is this : that the empirical mode of progress is purely and simply practical ; the scientific mode of progress ia at once practical and theoretic.
Էջ 258 - Must be placed on all service wires, either overhead or underground, as near as possible to the point where they enter the building and inside the walls, and arranged to cut off the entire current from the building.
Էջ 141 - L = length of stroke, in feet; A = area of piston, in square inches; N = number of strokes per minute = number of revolutions x 2. PLAN " " " 33,000 ' The derivation of this formula is explained, as follows: The area of the piston, in square inches, multiplied by the mean effective pressure, in pounds per square inch, gives the total force acting on the piston, in pounds.
Էջ 258 - No. 51.) a. Must be placed on all service wires, either overhead or underground in a readily accessible place, as near as possible to the point where the wires enter the building, and arranged to cut off the entire current.
Էջ 258 - In all wiring special attention must be paid to the mechanical execution of the work. Careful and neat running, connecting, soldering, taping of conductors and securing and attaching of fittings, are specially conducive to security and efficiency, and will be strongly insisted on.