Norris's Hand-book for Locomotive Engineers and Machinists ...H. C. Baird, 1854 - 302 σελίδες |
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Σελίδα 156
... axles and wheels , as an ascertained quantity , equal in the best carriages to 6 lbs . per ton of the train . Secondly , the resistance of the air ; which , acting on a solid body such as a railway train , he regards as much less in ...
... axles and wheels , as an ascertained quantity , equal in the best carriages to 6 lbs . per ton of the train . Secondly , the resistance of the air ; which , acting on a solid body such as a railway train , he regards as much less in ...
Σελίδα 157
... axles , & c . , is constant at all velocities . No. of Experiment . TABLE referred to above . Uniform velocity maintained in miles , per hour . Resistance in lbs . , per ton , by Experiment . Resistance in lbs ,, per ton , by Formula ...
... axles , & c . , is constant at all velocities . No. of Experiment . TABLE referred to above . Uniform velocity maintained in miles , per hour . Resistance in lbs . , per ton , by Experiment . Resistance in lbs ,, per ton , by Formula ...
Σελίδα 176
... axle . B ' B equal half the throw of valve . B ' C equal half the throw of cut - off eccentric . B ' A equal lap and lead . Draw the line , E F , perpendicular to the line of eccentric rod and tangent , to the lap and lead cir- cle ...
... axle . B ' B equal half the throw of valve . B ' C equal half the throw of cut - off eccentric . B ' A equal lap and lead . Draw the line , E F , perpendicular to the line of eccentric rod and tangent , to the lap and lead cir- cle ...
Σελίδα 177
... axle . For any other angle of cylinder or eccentric rod , the construction is precisely similar . The angle of connecting rod , being so trifling , is not taken into consideration in practice . Tire - Bars , Lengths required to make ...
... axle . For any other angle of cylinder or eccentric rod , the construction is precisely similar . The angle of connecting rod , being so trifling , is not taken into consideration in practice . Tire - Bars , Lengths required to make ...
Σελίδα 193
... axle , pulley , inclined plane , wedge , and screw , which are the simple elements of all machines . The whole theory of these elements consists sim- ply in causing the weight which is to be raised , to pass through a greater or a less ...
... axle , pulley , inclined plane , wedge , and screw , which are the simple elements of all machines . The whole theory of these elements consists sim- ply in causing the weight which is to be raised , to pass through a greater or a less ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
abscissa Atmospheric Railway avoirdupois axle blast-pipe boiler brass centre circle circular segments Circum circumference cloth coke conjugate connecting-rod copper crank Cube Root cubic feet cubic foot cubic inch curve cylinder cylinder in inches Dauphiny Decimal or Reciprocal diame diameter distance driving wheels eccentric-rod equal EXAMPLE.-Required find the Area find the Solidity fire-box Fraction or Numb friction Frustum fulcrum fulcrum and valve Gallons gauge give the solidity Height Length horses Hyperbola iron Length of Arc leverage locomotive engine metallic mile morocco motion multiply the sum North Shields ordinate Ounces Parabola pipes piston piston-rod plates Pounds pressure quotient radius rails Railway resistance revolving axis RULE RULE.-Multiply RULE.-To find screw segment shaft side smoke-box spindle square inch Square Root steam stroke subtract thickness throw tion tons trapezium tubes valve velocity Volume whole weight yards Zone