M\( HIM hHA\M\(i \NI) hi -l.,\ 



of 



full 



, -f l as 



(!< <>f i is spoke 



P8 in tliU country state dimensions of machines in 

 feet, inches, and fractions <>f an in.-li. tin- lattrr iM-in.ir the ^, J, 



In making calculations it is ^m-nilly mon- . 

 tM decimal fnu-tions, and tln-n sulistitute for the 

 tin- (juivalrnt frac-tiuns in ritfhths. sixti-i-ntli 

 following talilr will 1..- found useful for this j.urj.nsr : 







00875 

 118 



16625 

 1875 

 11 7fi 



28128 

 8118 



Decimal i:.j 

 88128 



6875 



1 ( 



in -rs use a single accent (') to denote fe<f. and a double 

 accent (") to denote inches. Thus 2' 9" reads two feet nin. 



II. RIVETED JOIN 



Two plates or pieces to be riveted together have I 

 punched or drilled in them in such a manner that om- n 

 made to overlap the other so that the holes in the one may be 

 opposite the holes in the other. The rivets, which are round 

 bars of iron, or steel, or other metal, are heated to r< 

 and inserted in the holes; the head already formed on the 

 and called the tail, is then held up, and the point i - ham 

 niered or pressed so as to form another head. This process of 



