A Manual of Machinery and Millwork |
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Page 22
... instant . In the case of two points in a primary piece whose motion is one of translation , the velocity - ratio is that of equality , and the directional relation that of identity ; for all points in such a piece are moving with equal ...
... instant . In the case of two points in a primary piece whose motion is one of translation , the velocity - ratio is that of equality , and the directional relation that of identity ; for all points in such a piece are moving with equal ...
Page 26
... then A A ' OA x angular velocity ; - = = OAX also , angular velocity = 710 113 A A ' OA x number of turns per second ; The velocity at a given instant of a point which 26 GEOMETRY OF MACHINERY . Translation of a Point in a.
... then A A ' OA x angular velocity ; - = = OAX also , angular velocity = 710 113 A A ' OA x number of turns per second ; The velocity at a given instant of a point which 26 GEOMETRY OF MACHINERY . Translation of a Point in a.
Page 27
... instant ; that is to say , being a tangent to the path of the point at that instant . Therefore , to represent by a straight line the velocity of the point now in question at the instant when its projection is at A , draw A a ...
... instant ; that is to say , being a tangent to the path of the point at that instant . Therefore , to represent by a straight line the velocity of the point now in question at the instant when its projection is at A , draw A a ...
Page 31
... instant , on a plane of rotation , of two points whose motions are to be compared . The directions of motion of those points at that instant are represented by the straight lines A a , Bb , tangents to the circles in which the points ...
... instant , on a plane of rotation , of two points whose motions are to be compared . The directions of motion of those points at that instant are represented by the straight lines A a , Bb , tangents to the circles in which the points ...
Page 32
... , is invariable . given instant let the velocities of those points be represented by straight lines , which may be in the same plane , or in different planes , according to circumstances ; and let A a and Bb 32 GEOMETRY OF MACHINERY .
... , is invariable . given instant let the velocities of those points be represented by straight lines , which may be in the same plane , or in different planes , according to circumstances ; and let A a and Bb 32 GEOMETRY OF MACHINERY .
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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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