104 



MACIMNK PKA\MM, AM- I 



hand Haifa horizontal section through the axis of the pins 

 i 1 Scale 4 inches to a foot. 



EXERCISE 86 : Itatchrt Lever. The lever shown in fig. 85 is 

 used for turning the horizontal screw of a 1 1 



the IN\" views shown, and from one of them project a 

 Scale full size. 



EXERCISE 87 : Steam Whisflr. Draw, full 



and section of the steam whistle hlnwn in (i^. x ;. Draw also 

 horizontal sections at A B, C D, and II 



- -7 



v Atyi 



*- -**"- ~f ?**-' T$' :> >. 



Sq ua TC t/i rcad.\ L eft /ia -nd. 



r // y'"^ z 



/ 1 t/e in reacis &r r / MS// 



- - - - - *-*- - 



4 j y aa 



EXERCISE 88 : Screw Conj>Iinf/fr H.iiliray Carrwfjcs. Draw 

 tlu tliree \4ews of the screw coupling shown in lii:. *7. Scale 

 inches to a foot. 



If the link A is fixed, through wliut distance will the? li. 

 move for two turns of the lev* 



EXERCISE 89: Loose Headstock for <i (\-inc, -Two 



views of this headstock are shown in tig. 88. On one of these 



