B 



\IV, VMi DKSK.N 



describe the arc NP to cut tin- mi-.- IK at P. .I"in 



M.I PN. 



\Vhenu miinler of ri\i of t he sumo diameter ha\e to ! 

 shown on tin- same drawing the above const rin -turns need only 

 be performed on one ri\et. After tin- ]>oim K lias been 

 covered the distance AE may be measured off on all the other 



fcl, and the arcs corresponding to DFII drawn \\itli radii 

 equal to KI>. In like inamu-r the height KP of th<- mni. -a I 

 head may be marked off on all ri\-t> of tin- same dian 

 with conical heads. 



Caulking. In ordrr to make ri\ rtcd joints steam or water- 

 i i-Jit the edges of the plates and the edges of the heads of the 

 1 1\ ets are burred down by a blunt chisel or caulking tool as 

 shown at Q and R. 



! : . 



FI3. 3. 



EXERCISK 1 : Forms of Draw, full hi and 



t heads shown in fig. ]. The diameter of the ri\ et in each cose 

 to be 1 inches, and the thickness of the plates ; inch. 



ill si/.e. thl 



and sectional elevation of the single riveted lap joint sh>\\n in fig. 2. 



