Practical Geometry and Graphics |
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Page 149
... crank of the harmonic motion of the point M or the point N , and the circle XYX , Y , is the auxiliary circle or circle of reference . The amplitude of a harmonic motion of a point is the greatest dis- placement of the point from its ...
... crank of the harmonic motion of the point M or the point N , and the circle XYX , Y , is the auxiliary circle or circle of reference . The amplitude of a harmonic motion of a point is the greatest dis- placement of the point from its ...
Page 150
... crank pin of the crank works in the slot on the end of the piece which is made to reciprocate . The reciprocating piece has simple harmonic motion when the crank rotates with uniform velocity . + FIG . 271 . 128. Lead and Lag . -Instead ...
... crank pin of the crank works in the slot on the end of the piece which is made to reciprocate . The reciprocating piece has simple harmonic motion when the crank rotates with uniform velocity . + FIG . 271 . 128. Lead and Lag . -Instead ...
Page 151
... crank from the zero position CX to the position CA which is to be taken as the new starting position . Observe that the equal divisions on the circle ... crank . When both cranks rotate the pencil PERIODIC MOTION 151 PERIODIC MOTION.
... crank from the zero position CX to the position CA which is to be taken as the new starting position . Observe that the equal divisions on the circle ... crank . When both cranks rotate the pencil PERIODIC MOTION 151 PERIODIC MOTION.
Page 152
... crank for each . The mechanism illustrated in Fig . 273 is the basis of Lord Kelvin's tide predicting machine . If the crank shafts be at a considerable distance from the guide pulleys G and H compared with the radii of the cranks , the ...
... crank for each . The mechanism illustrated in Fig . 273 is the basis of Lord Kelvin's tide predicting machine . If the crank shafts be at a considerable distance from the guide pulleys G and H compared with the radii of the cranks , the ...
Page 153
... cranks at a given instant . Draw Pq parallel and equal to CQ . Draw qr parallel and equal to CR . Draw rs parallel and equal to CS . Then CS , the closing line of the polygon CPqrs is the crank required . The point whose motion is being ...
... cranks at a given instant . Draw Pq parallel and equal to CQ . Draw qr parallel and equal to CR . Draw rs parallel and equal to CS . Then CS , the closing line of the polygon CPqrs is the crank required . The point whose motion is being ...
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Common terms and phrases
a₁ ABCD asymptotes axes bisects centre line chord conic construction crank cylinder described determined diagram distance Draw the plan Draw the traces drawn edge ellipse epicycloid epitrochoid equal equation face figure fixed forces given circle given in Fig given plane given point ground line helix horizontal plane horizontal trace hyperbola hyperboloid hypocycloid hypotrochoid inches inches in diameter inches long inches side inclined at 45 isometric projection meet moulding parabola parallel to XY picture plane plan and elevation plane containing plane of projection plane of section plane parallel position prism pyramid r₁ radius rays of light Referring to Fig right angles right circular cone rolling circle semi-minor axis shown in Fig shows simple harmonic motion solid sphere square straight line surface of revolution tangent plane tracing paper triangle vector velocity vertex vertical plane vertical trace