BOOK X. 



F~Fpt^^ T- T ^-Socket. C-Oak cross-sills. D-Band. E-Roof-beam. 



Co"^E FROM THrJ;?.rr '"'^'-^ CROSS-BEAM. H-UPRIGHT TIMBER. I-BaRS WHICH 



THE uprLht Tr^mKf «^ ™e crane-post. K-Bars which come from the sides of 



0-PuLLEY P Bp/m^. ''"^^^^ '"''^^^. M-TOOTHED wheels. N-ChAIN. 



of the rRl;:/.7^ r % """ CRANE-ARM. Q-ObLIQUE BEAMS SUPPORTING THE BEAMS 

 furnace V rZV ^-R5,"^^GULAR iron PLATES. S-TrOLLEY. T-DoME of THE 



OTHER conT^vanpp r^'^r^^ ''"^'^'- J-Ckank. Z-The crane-post of the 

 ?Snearm nn T '^~^^^''^-^''''- BB-Oblique beam. CC-Ring of the 



CRANE-ARM. DD-ThE second RING. EE-LeVER-BAR. FF-ThIRD RING. 



u«^— HOOK. HH— Chain of the dome. II— Chain of the lever-bar 



