Page 97 - CITS - ED - Mechanical

ENGINEERING DRAWING - CITS

Fig 9 Fig 10

For example the crane hook shown in Fig 11 has varying cross-sections and this cannot be shown by any one of
the sectional methods described earlier.
In such cases sections are taken at the desired position and the sectional view is drawn after as if the cut face is
revolved as shown at P and Q in the figure.
Note: The outline of the revolved sections shall be drawn in continuous thin outline.
Removed sections: When the space does not permit to show the revolved section or it will be more clear if shown
outside. The removed sections may be placed either near to and connected with the views by a chain, thin line
or in a different position and identified in the conventional manner as shown in Fig 12.
Local or Broken section: It often happens that only a partial section of a view is needed to expose the internal
details. Such a section is limited by a break line as in Fig 13 is called a local or broken or part section.

Fig 11 Fig 12

Fig 13

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CITS : Engineering Drawing (Mechanical) - Exercise 6