620 Report on Cream-Separators and 
rotating vessel A, which runs at a velocity of 6000 or 7000 revo- 
lutions per minute. 
To the bottom of the funnel is soldered a thin wing, which 
forces the milk to follow the rotation of the .vessel. 
Fig. 2. — Section of LavaVs Improved Cream Separator. 
As soon as the milk 
enters the rotating ves- 
sel the separation com- 
mences ; and during 
our trial the cream and 
skimmed milk com- 
menced to Jiow in three 
minutes from the time 
of turning on the milk. 
The heavier portion 
of the milk is thrown 
towards the circumfer- 
ence of the vessel, and 
forced up the bent 
tube b, whence it is 
delivered through the 
aperture c into the 
lower of two tin trays, 
or covers, B, which is 
provided with an out- 
let-pipe. The cream, 
being the lighter, re- 
mains nearer the centre, 
rises round the outside 
of the funnel a, and 
through a small hole 
in the cylindrical up- 
per part of the bowl ; 
it delivers itself at e 
into the upper cover 
C, whence it is dis- 
charged through an outlet-pipe, a little more than a gallon of 
milk only remaining in this machine when stopped ; and in 
thirteen minutes it was thoroughly cleansed and ready again for 
use. The power required to work this machine was taken by 
INIr. Anderson on the dynamometer, and registered as -j^ths of 
a horse-power. Price 37Z. 
The other Separators entered for trial were the Hamburg Cen- 
trifugal, patented by Heinr. Petersen. There was a large double- 
drummed machine, and a double-drummed smaller machine ; 
