|Reg. 142, Reg. 143, Reg. 144
The gusset angles connecting the stays to the shell and end
plates shall be at least 7/8ths of the thickness of the shell
plate, but shall be not less than ½ inch in thickness.
Load on Gusset Stay
Each gusset stay supporting the end plate of a boiler shall be designed
to carry the whole load due to pressure on the area supported
||Rivets securing gusset stays
shall not be less in diameter than the thickness of the
cylindrical shell plate and the riveting shall be arranged
so that the strength of the shell plate where drilled
for the gusset rivets shall not be less than the strength
of the longitudinal seams.
||Not less than three rivets
shall be used to connect any gusset plate to any angle
or any angle to the end plate or to the shell plate.