A wrapping mechanism is shown in Fig.2.63(a). The crank \(O_{1} A\) rotates at a uniform speed of 1200 \(\mathrm{rpm}\). Determine the velocity of point \(E\) on the bell crank lever.
\[ \begin{aligned} & O_{1} A=300 \mathrm{~mm}, A C=650 \mathrm{~mm}, B C=100 \mathrm{~mm}, O_{3} C=400 \mathrm{~mm} \\ & O_{2} E=400 \mathrm{~mm}, O_{2} D=200 \mathrm{~mm}, \text { and } B D=200 \mathrm{~mm} \end{aligned} \]

Transcribed Image Text:

200 mm 3. 23 400 200 35 15 34 C (b) Circle diagram (a) Locating instantaneous centres Fig.2.63 Wrapping mechanism