|Reg. 178, Reg. 179, Reg. 180, Reg. 181
When Pitch exceeds maximum allowed
Should the pitch of the rivets exceed the maximum pitch allowed,
the permissible pitch shall be used in place of the actual pitch
in determining the percentage of plate section. No greater percentage
than 85 shall be allowed for any type of riveted joint.
Butt Straps and spacing of rivets below requirements
Should the spacing of the rows of rivets or the distance between
edge of plate and rivet hole or the thickness of butt straps
be less than that specified in Regulations
182 and 184 the percentage
representing the strength of joint shall be modified as prescribed
in those regulations.
Percentage of Welded and Strapped Seams
In determining the percentage of strength of a welded seam covered
by a strap or straps the formulae and allowances in Regulations
177, 178 and
179 shall be applied,
but 50 per cent shall be added to the rivet percentage for the
Percentage to be allowed for Solid Rolled Shells
When small shells are rolled from the solid, J, in equation
(1) shall be taken as 100 per cent.