L80 



MACHINE l'K\\vi\<; \M> DESIGN 



RT /'! 121: Itrrcrrible li /. Draw, full ai/c. th- 



n shown ln-l\\ t-f n reversible ratchot-brace. Draw 



M .shown in ti'j. r_'7. All tin- (linu-iisioiii are to 

 be obtained fr<>m tin- drtail drawings. 



Elei/alum, 



Hal/ Plan 



Half sectional Plan at A^. 



FIG. 126. 



