Fiors.  fuul.27. — Fawcett.  and  Har  area  re’s  Patent  Sat'rtu-valve,  for  Steam-hnih-rg 
Fig.  26. — Transverse  Section.  Fig.  27. — Longitudinal  Section. 
« o 
..  Yalvo  case,  fixed  to  the  top  of  the  boiler,  and  containing  tho  J d.  Low-water  float. 
valve  and  end  of  the  outlet  pipe  to  furnaces.  e.  High-water  float. 
■ Outlet  pipe  to  convey  steam  to  furnaces.  ! f.  Lever  with  floats  at  ends  for  lifting  valve  at  high  or  low  water, 
. Dead  weight  on  safety  valve  spindle.  I a,  Boiler  furnace, 
