5 × 5 = 25 × 80 = 2,000 lbs. borne by 1 stay.
Note.
The pressure on the surface does not include the space occupied by the area of the stay bolt, hence, to be absolutely correct that must be deducted.
Fig. 46.
GUSSET STAYS.
The flat ends of cylindrical boilers are, especially in marine boilers, stayed to the round portions of triangular plates of iron called gusset stays. These are simply pieces of plate iron secured to the boiler front or back, near the top or bottom, by means of two pieces of angle iron, then carried to the shell plating, and again secured by other pieces of angle bar. This arrangement is shown in [Fig. 47].
Fig. 47.