Message from
Chairman of Central Boilers Board


About Central Boilers
Board


History of Indian Boiler Regulations

Foreword

Contents Chapter
Wise


Contents Regulation
Wise


List of Amendments

Indian Boilers
Act 1923


Ibr Forms

Home

Search

Help

Contact Us

Reg. 178, Reg. 179, Reg. 180, Reg. 181
SHELLS


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.


Reg. 179
SHELLS


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.


Reg. 180
SHELLS


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 weld.


Reg. 181
SHELLS


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.
 
Back   Top
Message from Chairman of Central Boilers Board About Central Boiler Board History of Indian Boiler Regulations Foreword Contents Chapter Wise Contents Regulation Wise List of Amendments
Indian Boilers Act 1923 Ibr Forms Home Search Help Contact Us