Page 154 - CITS - ED - Mechanical

ENGINEERING DRAWING - CITS

– Diagonal pitch (Pd) = (2P + d) /3
– Length of rivet = thickness of plates (plate grip) + 1.25d or 1.7d

Fig 3

Butt joints: When the plates butt against each other the joint is called butt joint. The joint may have either single
cover plate or double cover plate and single riveted, double riveted and triple riveted etc. on each plate. These
are generally used on longitudinal seams of cylindrical boiler shells etc. (Fig 4)

Fig 4

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CITS :Engineering Drawing (Mechanical) - Exercise 8