166 MACHINE DKAWINV, AM> 



.: nt.iry knowledge of the c<>i nd (In: 



necessary fittings. Gusset and bar stays. Method* <>f making the 



s tf pi|cs f--: ii,' strain ami \v.itT under pressure. 



140, BOckct, and unili J.'llitM. Use of a ill a 



1 :<>n nf tin- part* of a 



shaft. Crank-pin t< crank-arm ami arm to .shaft . llox and flange 

 couplings. Connection ,,f tin- two parts of a: it sheave, 



uing of terms eccentric radius and travt t ion 



<>f the parts of sliding pieces. Piston to rod, rod to crosshead of 

 juidr-liWk, and slidi-valve to valve-rod. 



Secondary Pitces. Parts of a o>nm< ting-rod. Const nu-tiiii "f 

 an eccentric-strap and md. 



leal Characteristics of the Common Materials \ued 



"/. Kit -inentary information as t> the n 1 jth. 



dnialiility undt i \\.ai. resistance to corrosion, and caj.al.ili- 

 being cast or forged of ii i c..pprr. Any <|in .-tmn 



which may be set on the strength and proportion! "f marl 

 \\illh \ elementary chara 



sAop Processes. Elementary information of the processes 

 oy which the desired shape is giv-n t.. machiiu- parts, includui" 

 the use f the lathe, the planing, shaping, blotting, ami drilling 

 machines. 



