The Trials of Cream Separator's at Doncaster. 515 
could be effected. lu dismantling and cleaning six minutes 
were occupied, and half a minute in putting together again. 
The cleaning was easily performed, though not quite so well 
as with the " Alexandra." The construction of the " Baby is 
practically that of the improved " Laval " or " Keading Royal," 
only in smaller compass. 
No. 1237, Tka " Winchor" price 21?. — This machine is a hand 
" Laval " of horizontal pattern, instead of vertical as in the case 
of the " Baby." It separated a considerably larger quantity of 
milk than the latter, viz. 32^ gallons per hour. The price is, how- 
ever, nearly double, and the machine in question required more 
power to work. '23 horse-power was required. It took | min. 
after starting, for the skim-milk to come, and 1;^ min. for the 
cream. The number of revolutions of the handle was 46 per 
minute, the temperature of separation 88° Fahr. The separation, 
perhaps owing in part to a leak that occurred in the machine, 
was not as good as that of any of the other six machines, and 
the loss from the same cause was much the highest. Never- 
theless, though inferior to others, the sepai-ation could not be 
called at all bad, for 96'2 per cent of the butter-fat was removed 
from the whole-milk, and only '157 per cent of fat left in the 
skim-milk. The thickness of cream could be regulated very 
much better in this and the other horizontal machine than in 
the corresponding vertical "Lavals." 12 mins. were taken in 
dismantling and cleaning, and 1^ min. in putting together 
again. This was not so readily effected as in the vertical 
separators. A feature in the construction was the emplojnnent 
of a handle which could swing loosely to and fro, although the 
machine was still separating. This ingenious contrivance is of 
value as eliminating a source of danger from a handle revolving 
at a rapid rate when the hand power is removed, as it would be 
at the end of separating, although the drum would continue to 
revolve for a considerable time longer. 
No. 1238, The " Aljjha Bahy," price IQl. 106\— This and the 
next machine to be described, the " Alpha Windsor," are the 
foregoing ones, Nos. 1236 and 1237, with the addition of the 
arrangement of discs described already. The effect has been to 
increase the quantity of milk separated, from 13 gallons per 
hour in the " Baby," to 30 gallons per hour in the " Alpha 
Baby," and this at an increased cost of 4/. 10s. only. The 
power required was "09 horse-power, the second best result, as 
was also the case with regard to efficiency. After starting, 
cream came in \\ min. The number of revolutions of the handle 
was 50 per minute, the temperature of separation 88°-90° F. 
Separation was well performed, though four machines showed 
