Norris's Hand-book for Locomotive Engineers and Machinists ... |
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Page 143
... average pressure of our atmosphere at the surface of the earth . The press- ure of the atmosphere is reckoned as equal to that of 30 perpendicular inches of mercury ; or 14-7 lbs . per square inch , or 11.55 lbs . per circular inch . To ...
... average pressure of our atmosphere at the surface of the earth . The press- ure of the atmosphere is reckoned as equal to that of 30 perpendicular inches of mercury ; or 14-7 lbs . per square inch , or 11.55 lbs . per circular inch . To ...
Page 146
... average , to be not more than 1 lb. to the square inch , in well - con- structed engines . The difference in loss of power from this cause , between beam and direct action engines , is found by experiment to be inconsider- able . Mr ...
... average , to be not more than 1 lb. to the square inch , in well - con- structed engines . The difference in loss of power from this cause , between beam and direct action engines , is found by experiment to be inconsider- able . Mr ...
Page 150
... placed seven or eight feet below . the water - line , and the screw is driven by direct action at the rate of 45 revolutions per minute . RAILWAYS . Summary of the average Items of the Construction 150 STEAM - ENGINE .
... placed seven or eight feet below . the water - line , and the screw is driven by direct action at the rate of 45 revolutions per minute . RAILWAYS . Summary of the average Items of the Construction 150 STEAM - ENGINE .
Page 151
... average quantities , per mile , of the several items which are involved in the formation of a dou- ble line of ... average of about 103,330 yards per mile , or 58.71 cubic yards of earth - work for each yard forward of the line ...
... average quantities , per mile , of the several items which are involved in the formation of a dou- ble line of ... average of about 103,330 yards per mile , or 58.71 cubic yards of earth - work for each yard forward of the line ...
Page 152
Septimus Norris. pose of this general calculation . The average width of land required will thus be , Central width . Base of Slopes . Ditches , & c . 30+ 16.5 + 16 ยท 5 + ` 15 + 15 : = 93 ft . or 31 yds . , which will give about 111 ...
Septimus Norris. pose of this general calculation . The average width of land required will thus be , Central width . Base of Slopes . Ditches , & c . 30+ 16.5 + 16 ยท 5 + ` 15 + 15 : = 93 ft . or 31 yds . , which will give about 111 ...
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Common terms and phrases
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