Norris's Hand-book for Locomotive Engineers and Machinists ... |
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Page 10
... Lever Mechanical Powers ..... 252 198 ... 203 168 192 Mensuration of Solids .... Mensuration of Surfaces Miscellaneous Remarks ..... 117 ... 104 . 205 Proportions of Length of Circular Arcs ......... .. Proportions of Length of Semi ...
... Lever Mechanical Powers ..... 252 198 ... 203 168 192 Mensuration of Solids .... Mensuration of Surfaces Miscellaneous Remarks ..... 117 ... 104 . 205 Proportions of Length of Circular Arcs ......... .. Proportions of Length of Semi ...
Page 168
... LEVER . 1. A LEVER is an inflexible bar , either straight or bent , supposed capable of turning round a fixed point , called the fulcrum . According to the relative positions of the weight , power , and fulcrum , on the lever , it is ...
... LEVER . 1. A LEVER is an inflexible bar , either straight or bent , supposed capable of turning round a fixed point , called the fulcrum . According to the relative positions of the weight , power , and fulcrum , on the lever , it is ...
Page 169
... lever will be at rest , or in equilibrio ; but if one of these products be greater than the other , the lever will turn round the fulcrum in the direc- tion of that side whose product is the greater . 4. In all the three kinds of levers ...
... lever will be at rest , or in equilibrio ; but if one of these products be greater than the other , the lever will turn round the fulcrum in the direc- tion of that side whose product is the greater . 4. In all the three kinds of levers ...
Page 170
... lever will be at rest ; if not , it will turn round the fulcrum in the direc- tion of that side whose products are greatest . 11. In these calculations the weight of the lever is not taken into account ; but if it is , it is just ...
... lever will be at rest ; if not , it will turn round the fulcrum in the direc- tion of that side whose products are greatest . 11. In these calculations the weight of the lever is not taken into account ; but if it is , it is just ...
Page 171
... lever of the third kind the weight is 60 , and its distance 12 , and the power acts at a distance of 60 × 12 9 from the fulcrum ; therefore , by No. 5 , 80 the power required . 9 If there be a lever of the first kind , having three ...
... lever of the third kind the weight is 60 , and its distance 12 , and the power acts at a distance of 60 × 12 9 from the fulcrum ; therefore , by No. 5 , 80 the power required . 9 If there be a lever of the first kind , having three ...
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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