Report on the Trials of Implements at [Cardiff. 477 
Xo. 1986. Lawrence and Co.'s Patent Capillary Kefrigerator has been much 
- J by brewers for cooling beer. It will be found of very great value to 
irmers who sell their milk ^ , 
)r coQsumptiou in towns, and Fig. 37. — Lawrence and Co.'s Patent 
1 summer may be used in Capillary Befrigerator. 
le dairy to cool the milk as 
Lomes from the cow before 
;ng it for cream. In send- 
I, milk by rail or road it is 
i" the utmost importance that 
-hould be thoroughly cooled 
-oon as it leaves the cow ; 
' is sometimes done by im- 
ping the milk churn in a 
uing stream, but where 
: c is no suitable stream at 
<\ it has been a matter of 
-iderable difficulty to cool 
milk sufficiently without 
- of time. In this appa- 
;s a very small quantity 
I cold water, passing up- 
.ards in a very thin stream 
letween two corrugated sheets 
f metal, rapidly abstracts the 
.eat from two very shallow 
treams of milk descending 
r*ide the metal sheets. In 
37, D is the inlet, and 
^ the outlet for the water, 
ivhich, being supplied from 
. higher level, flows through the refrigerator, B, by the force of gravity. 
^ tap in the milk receiver, A, regulates the flow of milk into a small troogh 
t the top of the refrigerator punctured with holes, through which the milk 
uns, and is spread into so fine a sheet that, instead of 
!alling rapidly from step to step, it follows the corrugations 
'f the surface. The attraction is thus not capillary, as the 
\ame of the apparatus might lead us to suppose, but simply 
Vne of adhesion. In the enlarged section (Fig. 38) of a 
')art of the refrigerator the descending arrows indicate the 
uiTents of milk gradually cooling as they descend ; the citr- 
ent of water passing upwards is gradually warmed, so that 
vvhen it passes out of the spout at E it is very nearly of the 
'.ame temperature as the milk in the receiver, 
t The stone-breaker invented by Eli W. Blake has been 
lor some years exhibited in the Show-yard by Messrs. Marsderi 
■ml Co., and has proved its efficiency in breaking up granite 
md other stones to a size suitable for road metal. It has 
litherto been open to the objection that, the stones bciug 
ilways cracked in the same direction were not brought into 
'he best shape, but, by a recent improvement in the shape of the jaw, the 
.tone is now cubed, and an excellent sample of road metal is prepared with 
far less waste of material. The contrivance for cubing the stone by means of 
'\ cross-bite is shown at A (Fig. 39, p. 478), near the bottom of the jaw, and 
litill more dearly in the front view (Fig. 39, 2), where it will be noticed that 
f.he partially broken stone, instead of descending in one straight line, will be 
thrown sideways by the change in the; grooving of the surface of the jaw. The 
Fig. 38. 
