A Manual of Machinery and Millwork |
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Page 28
... approximately equal to a Fig . 22 . given circular arc , A B. Draw the straight chord B A ; produce A to C , making ACBA ; about C , with the radius CBBA , draw a circle ; then draw the straight line A D , touching the given arc in A ...
... approximately equal to a Fig . 22 . given circular arc , A B. Draw the straight chord B A ; produce A to C , making ACBA ; about C , with the radius CBBA , draw a circle ; then draw the straight line A D , touching the given arc in A ...
Page 29
... approximately equal in length to the arc A B. The error of this rule , in fractions of the length of the arc , is just one - fourth of the error of Rule I. , but in the contrary direction ; and it varies as the fourth power of the angle ...
... approximately equal in length to the arc A B. The error of this rule , in fractions of the length of the arc , is just one - fourth of the error of Rule I. , but in the contrary direction ; and it varies as the fourth power of the angle ...
Page 58
... approximately a rolled curve by the help of tangent circles . In fig . 47 , let A B be the fixed curve , and A D the rolling curve , touching the fixed curve at A , which is also the position of the tracing point at starting . The curve ...
... approximately a rolled curve by the help of tangent circles . In fig . 47 , let A B be the fixed curve , and A D the rolling curve , touching the fixed curve at A , which is also the position of the tracing point at starting . The curve ...
Page 93
... approximately the axis of another non - circular wheel which shall turn in rolling contact with the first wheel , and of which an arc of a given length on the pitch - line shall subtend a given angle . In fig . 70 , let the plane of ...
... approximately the axis of another non - circular wheel which shall turn in rolling contact with the first wheel , and of which an arc of a given length on the pitch - line shall subtend a given angle . In fig . 70 , let the plane of ...
Page 94
... approximately equal in length to B L. Join and measure A K , and in the line of centres take A MA K. About H , with the radius H M , draw a circular arc , M P , cutting the arc K L P in P ; P will be approxi- mately the required point ...
... approximately equal in length to B L. Join and measure A K , and in the line of centres take A MA K. About H , with the radius H M , draw a circular arc , M P , cutting the arc K L P in P ; P will be approxi- mately the required point ...
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Common terms and phrases
acting angle angle of repose angular velocity approximately Article axes axle band beam bending bending moment body breadth cast iron circle circular arc co-efficient component crank cross-section curve cutting cylinder denote diameter direction distance dynamometer ellipse epicycloidal epitrochoid equal equation exerted factor of safety figure fixed force friction gear given greatest instant instantaneous axis kilogrammes length lever line of centres line of connection load machine means modulus moment of inertia motion moving pieces multiply normal obliquity pair parallel perpendicular piston pitch pitch-circle pitch-line pitch-point pitch-surface plane of projection position pressure principles produced proportional pulley radii radius radius of gyration ratio represent resistance resultant rolling rotation rules screw shaft shearing shearing stress sliding square inch straight line strength stress stroke surface teeth tenacity tension tooth trace train train-arm transverse traversing valve velocity-ratio weight wheel
Popular passages
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