In Whitworth quick return motion mechanism, the driving crank is under an accelerated motion

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Find the ratio of the time of cutting to the time of return stroke from the following information: In a crank and slotted lever quick return motion mechanism, the distance between the fixed centres is 0.240 m and the length of the driving crank is 0.120 m.

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Find the inclination of the slotted bar with the vertical in degrees in the extreme position from the following information: In a crank and slotted lever quick return motion mechanism, the distance between the fixed centres is 0.240 m and the length of the driving crank is 0.120 m.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

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Find the length of stroke if the length of the slotted bar is 0.45m and LOS passes through the free end of the lever. Length of driving crank = 0.12m, distance between fixe centres = 0.24m. Crank and slotted lever quick return motion mechanism.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

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Match list I with list II List I List II A. Scott-Russel 1. Intemittent mechanism motion B. Geneva 2. Quick return mechanism motion C. Offset slider crank 3. Simple motion harmonic mechanism D. Scotch Yoke 4. Straight line mechanism motion

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Whitworth quick return motion mechanism is an inversion of a double slider crank chain.

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The whitworth quick return motion mechanism is formed in a slider crank chain when the

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Whitworth quick return motion mechanism consists of three turning pairs and one sliding pair.

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A crank and slotted lever mechanism used in a shaper has a centre distance of 300 mm between the centre of oscillation of the slotted lever and the centre of rotation of the crank. The radius of the crank is 120 mm. Find the ratio of the time of cutting to the time of return stroke.

asked Sep 24, 2022 in Machine Kinematics by Leo (38.0k points)

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Find the ratio of the time of cutting to the time of return stroke from the following information: A crank and slotted lever mechanism used in a shaper has a centre distance of 0.300 m between the centre of oscillation of the slotted lever and the centre of rotation of the crank. The radius of the crank is 0.120 m.

asked Sep 24, 2022 in Machine Kinematics by Leo (38.0k points)

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In a crank and slotted lever quick-return motion, the distance between the fixed centres is 150 mm and the length of the driving crank is 75mm. the ratio of the time taken on the cutting and return strokes is

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

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In a crank and slotted lever type quick return mechanism, the link moves with an angular velocity of 20 rad/s, while the slider moves with the linear velocity of 1.5 m/s. The magnitude and direction of Coriolis component of acceleration with respect to angular velocity are

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Bull engine is an inversion of single slider crank chain.

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A single slider crank chain is a _______

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Match list I with list II List I List II A. Quick return mechanism 1. Lathe B. Apron mechanism 2. Milling machine C. Indexing mechanism 3. Shaper D. Regulating wheel 4. Centreless grinding

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In a shaping operation, the average cutting speed is ( Stroke length S, Number of strokes per minute N, Quick return ratio R)

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The magnitude of velocities of the points on a rigid link is directly proportional to the distances from the points to the instantaneous centre.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

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