210  Miscellaneous  Implements  Exhibited  at  Gloucester,  1909. 
Full  wood  & Bland,  31  Bevenden  Street,  Hoxton,  London,  N. 
Small  and  neat  in  appearance,  easily  yrorked,  and  is  fully  up 
to  its  stated  capacity.  The  average  of  cream  separated  is  quite 
satisfactory  as  shown  by  tests  made  for  the  Judges.  In  view 
of  its  low  price  the  machine  appears  worth  the  consideration 
of  those,  who  require  a small  separator. 
Other  “New”  Implements. 
No.  3735. — Gmde  Oil  Engine,  16^  B.H.P.  Price  160?. — 
Exhibited  by  Blackstone  & Co.,  Ltd.,  Stamford.  This,  as  a good 
example  of  a crude  oil  burning  engine,  was  subjected  to  a 
thorough  examination  and  trial  by  the  Judges.  It  may  here  be 
Fig.  3.— Crude  Oil  Engine. 
mentioned  that  crude  oils  somewhat  resemble  Creosote  in 
appearance  and  smell,  and  vary  in  thickness  from  Scotch  shale 
oil,  which  is  quite  limpid,  to  Canadian,  which  is  nearly  as  thick 
as  treacle.  It  is  therefore  of  much  importance  that  a crude  oil 
engine  should  be  capable  of  dealing  with  any  brand  of  crude  oil 
without  modification  or  adjustment  being  required.  The 
Blackstone  engine,  when  tested  with  various  brands  of  oil, 
appeared  to  be  quite  indiflierent  to  what  it  was  burning,  and 
even  with  the  most  varying  brands  no  difference  was  percep- 
tible either  in  horse-power  or  revolutions.  No  adjustment 
of  any  kind  was  made  during  these  trials.  One  o£  the 
great  difficulties  in  using  crude  oil  is  fouling  of  the  cylinder 
and  piston  head  with  a deposit  of  carbon  due  to  imperfect 
