Petrol Motors and Motor Cars: A Handbook for Engineers, Designers, and DraughtsmenLongmans, 1905 - 187 страници |
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Страница 24
... width of the actual seating may be about equal to half the thickness of the head of the valve , or 0.05 times the diameter of the valve opening . The wider the seating , in reason , the longer the valve will work without it being ...
... width of the actual seating may be about equal to half the thickness of the head of the valve , or 0.05 times the diameter of the valve opening . The wider the seating , in reason , the longer the valve will work without it being ...
Страница 39
... For a rod of rectangular cross - section the thickness may be 0.45 of the diameter as found by the above formula , and the width 2.5 times the thickness . All the above data apply to rods made from mild - steel CONNECTING RODS . 39.
... For a rod of rectangular cross - section the thickness may be 0.45 of the diameter as found by the above formula , and the width 2.5 times the thickness . All the above data apply to rods made from mild - steel CONNECTING RODS . 39.
Страница 42
... width of rim necessary can be easily calculated . Although , as stated above , the flywheel has no part in regulating the variation in speed between no load and full load , it may be taken that a heavy flywheel will materially assist ...
... width of rim necessary can be easily calculated . Although , as stated above , the flywheel has no part in regulating the variation in speed between no load and full load , it may be taken that a heavy flywheel will materially assist ...
Страница 81
... known values in equation 40 , we get- P = 150 x 0.25 x 7 x 800 63000 × 0.2588 = 13 nearly The width of the surface of the cones is arrived at from G consideration of the amount of wear likely to occur , FRICTION CLUTCHES . 81.
... known values in equation 40 , we get- P = 150 x 0.25 x 7 x 800 63000 × 0.2588 = 13 nearly The width of the surface of the cones is arrived at from G consideration of the amount of wear likely to occur , FRICTION CLUTCHES . 81.
Страница 82
... width of the cone surface W- ( 41 ) W = 2 F250 In the case of clutches of the expanding - ring type , all 1 FIG . 27 . the calculations are essentially as above , but the arrange- ment of the levers requires consideration . Usually the ...
... width of the cone surface W- ( 41 ) W = 2 F250 In the case of clutches of the expanding - ring type , all 1 FIG . 27 . the calculations are essentially as above , but the arrange- ment of the levers requires consideration . Usually the ...
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air and gas allowed angle automobile bevel brake band calculations carburettor cast iron centimetre centre distance charge circular pitch clutch coefficient of friction coil combustion chamber compression pressure cone connecting rod crank shaft Cube root cylinder cylinder walls depth of tooth diagram diametral pitch dimensions driving engine epicyclic gearing equal exhaust valve factor of safety Fahr feet per minute feet per second formula gases gear wheels governor gudgeon pin horse-power ignition inlet valve internal combustion engine Kilos litre load lubrication maximum mean effective pressure miles per hour Millimetres mixture number of teeth obtained petrol motor pipe piston speed pitch diameter pitch-circle pitch-line plates pounds per square proportions ratio rawhide revolutions per minute ring road wheels screws spark specific gravity spring square inch stroke substituting known values TABLE temperature thickness thread tube tyres usually V₁ vapour velocity vertical weight width worm gears writer yard
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Страница 102 - No. of threads per inch. Linear. Depth of thread. Width at top of thread. Width at bottom of thread. Space at top of thread. Thickness at root of thread. 1 05100 0-3707 0-3655 06293 0-6345 1J 0-3850 0-2780 0-2728 0-4720 0-4772 2 0-2600 0-1853 0-1801 0-3147 0-3199 3 0-1767 0-1235 0-1183 0-2098 0-2150 4...
Страница 133 - No. Square Cube Square Root Cube Root No. Square Cube Square Root Cube Root...
Страница 140 - Diameter of bolt. Number of threads per inch. Diameter at bottom of thread. Distance across flats. Distance across corners. Thickness of bolt head. Thickness of nut. Fractional sizes.
Страница 141 - Internal diameter of pipe. Diameter at top of thread. Diameter at bottom of thread. Number of threads per inch. Internal diameter of pipe. Diameter at top of thread. Diameter at bottom of thread. Number of threads per inch.
Страница 147 - OF DECIMAL EQUIVALENTS Of eighths, sixteenths, thirty-seconds, and sixty-fourths of an inch. Eighths. Thirty-seconds. Sixty-fourths. Sixty-fourths. 1 •125 A •03125 A...
Страница 80 - Expressed mathematically, the coefficient of friction is the tangent of the angle of repose, so for this value it would be the angle of which .25 is the tangent.
Страница 92 - Module is the pitch diameter in millimetres divided by the number of teeth in the gear.