Am.  Jour.  Pharm.) 
May,  1920./ 
Cajfjetne  from  Cojjee  Soot. 
313 
The  illustration  herewith  shows  the  details  of  a  practical  coffee 
soot  collector. 
DKTAII.S  OF  A  COFFEK-SOOT  COIvIvKCTOR. 
The  collector  consists  of  a  water- jacketed,  sheet-iron  or  cast- 
iron  box  equipped  with  baffle  plates  arranged  so  as  to  make  a  tortuous 
-Electric  Fan 
V/aterOutlet^mi 
Hin^e  : 
DC 
Baffle  Plains 
Hinde- 
Glass  window  with 
lamp  before  it 
Screw  Clamps 
-Water  Jacket 
-Water  Inlet 
t 
Front  View  (without  door) 
Cross-section  of  a  Coflfee  Soot  Collector. 
path  for  the  soot  from  the  coffee-roaster.    It  is  connected  in  an  up- 
right position  with  the  flue  of  the  roaster. 
If  the  resistance  of  the  baffle  plates  is  too  great  to  permit  the 
passage  of  the  soot  and  flue  gases,  an  electric  fan  must  be  installed 
in  the  exit  pipe  of  the  collector.  The  suction  thus  created  must  be 
just  enough  to  prevent  the  soot  and  gases  from  coming  out  into  the 
room  in  which  the  roaster  is  situated,  and  not  enough  to  carry  any  ^ 
of  the  chaff  up  into  the  collector. 
