972 
densers might be applied to one boiler, 
or two or more boilers may be applied to 
one or more: condensers. . The cooler 
or. condenser. might be another pan not - 
heated, but for saving of expense, the 
patentees ‘recommend clay hoed with 
brick-flags, or any other cheap and con- 
venient materials, for forming a shallow 
pond. or reservoir, communicating with 
the boiler, and acting as such cooler or 
condenser: any other way of causing an 
alternate variation of the degrees of — 
heat in the brine, during the process, 
would pr oduce a snmilar effect; “but no 
method,” say they, “can be more si 
ple and. easy for this purpose, than ime 
which we have described; and this, in 
its principle, comprehends | all other me- 
thods of graduating and regulating the — 
heat of the brine, by:alternate increase 
and diminution; and therefore we pro- 
test against the evasive employment of 
any mode diferent in form and appear- 
ance, whereby the same or the like effect 
may be produced, either entirely or par- 
tially, inasmuch as all such ‘different 
modes would be in substance and prin- 
ciple, the same as that which we have 
described; and we particularly notice 
that, as the communication is to be 
open, a pan or pans of an enlarged size, 
having the heat applied only ‘to part 
thereos, would operate to the forming of 
the salt, because in ‘that case’the parts 
of the pan not heated, would be in effect 
condensers to the heated parts of the’ 
pan; but the extension of the patis would 
operate against saving of expense. 
the 
sers, a much greater quantity of sait will 
be made in the same space of time, than 
can he made in the same pans or boilers, © 
without the coolers, or condensers.” 
a 
Ma. CHARLES LE CANS, (LLANELLY,) 
for an Invention of certain Appuratus 
to be added to the ,Axle-trees and 
Wheels, or Naves of Wheels, of Car- 
rid&@3y $0 a tO impede, resist, or check, 
ther Action, ; 
This invention consists in causing ‘the 
“wheels, or either wheel singly, of. aa, 
<° 
carriaye whatsoever-to be stopped, 
“become sta tionary, at the: pleasure of th 
driver thereof, by means. of bolts” or ; eat oe mf 
slides of iron, of any ouber metal or CO 
pound meta y ‘attached to an ialeitite ‘8 
of any king, or sort, which bolts or slides, © 
by ineans of | levers, vith or without tle 
assistance of Springs, comme into contact — 
with a plate of iron, or any other metal, 
or compound metal, on which ene or 
Pagerets lately E nrolled. 
By 
adilition of ihe sities or conden-— 
or asanorrery. I 
[July ft, 
more projections are formed ; which plate 
being let in, and fixed to the nave of a 
wheel, will answer the purpose required, 
by impeding the motion of any carriage, 
to the wheel or. wheels of which the 
Same ‘is applied. The levers are, or may 
_be, connected with the body of any kind 
of carriage, and to such. part thereof as 
May prove most convenient, by either 
chains, strings, cords, ‘leather, or any 
_ other substance PEE for ,the -pur- 
_ pose. wey 
MR. JOHN scuMIDT" Bs (te mast: AXE,) 
sh for: a Phantasmagoric Chronometer, Or 
' Necturnal Dial, rendering’ visible dt 
. Night, to any enlureed size, the Dial 
‘of a Watch, against the Wall of - 7 
Reom, &c. §e. 
This instrament consists of a vase, or 
any ornamental case, either of. wood, 
stone, tin, or any other metal applicable, 
ch 
-and so consiructed as to allow.a fi 
communication of the air, yet to prevent 
the rays of the light from being y visible; 
sand having ov one side a wateh with : iwi 
dials, or what are called the day and 
night dial, and on the opposite side 
combination of giasses, or a single glaas 
moveable in a tube: the diameter of the 
glass is one inch and three quarters, and 
the pins two inches and three- -quariers; 
serving to represent the inward or nightly 
dial, against the wall. In the foot of the © 
vase is @ light or lamp, shut in, yet sa _ 
constructed, that by means of a [itt 
oor or slider, it may be taken out, and 
when in, may be altered in its position, 
and placed. nearer or further off the mag- 
nifier or dial. In the bottom of the vase 
is a case, to receive the waste orl of the 
Jamp. Having stated at Jarge the par- 
ticulars of the nocturnal dial, the pa: _ 
tentee goes on to describe the in ysterious 
circulation, or chronological equilibrium; 
which apparatus*may be applied instead 
of the watch-work, deserihed in the spe- 
‘cification, and illustrated. with figures, 
or may be used as = separate tintesp 
sists of the | 
eitical watch, | 
resenti the 
wi 38 ce 6 ta 
a weight ; and the, 
ane hate are 
: ier es the 
of a horizontal, ory ve 
1s On the other 
er i, Pactiel a box, con- 
' cient to coanter-balance 
very position: when i in mo- 
> tion ; 
be 9 watch in ev 
ae 
