1805.] 
is to be ftirred till cool, or it may be tranf- 
ferred to another veflel. ‘The compofition 
will be ftrong or weak in proportion to 
the purity of the potath or fub-carbonate of 
foda made ule of, or of both when made 
ule of together. 
MR. JAMES FUSSELL’s (WELLS), for 
improved METHODS of WORKING WA- 
TER-WHEELS, RAISING Of WATER, 
and, in a great meafure, preventing 
WATER-WHEELS from being FLOODED, 
and other ufeful PURPOSES. 
The principal parts of the machinery 
ufed in this invention, are, a water-wheel, 
two cranks to return the levers by the 
lifters that raife them, two levers to work 
the pumps, befides buckets, and a chain. 
The chain may be made of any length or 
ftrength, according to the depth of the 
fall of water; for inftance, a {mall fpring 
rifing ona hill, which has a fall of fifty 
yards more or lefs, it will be neceffary to 
carry water in a trench to the fteepeft part 
of the hill, in order to have the level as 
fhort as poflible ; which level muft be 
driven to a pit funk perpendicularly un- 
der the wheel, the buckets working over. 
The wheel may be made fmall, in order 
for the buckets to work in a common pit, 
four or five feet in diameter. In working 
water-wheels by this method, a great ad- 
_ vantage will be gained over that at pre- 
fent ufed, as the whole weight of the wa- 
ter will always hang at the greateft dif 
tance from the centre of the wheel. 
The drawings that accompany this f{pe- 
cification are fully adapted to the expjana- 
tion of the principle. In one figure are 
exhibited the fmall chain and buckets for 
raifing water, ores, coals, or other bodies, 
from mines. The buckets are hung to 
the crooks of which the chain is compof- 
ed, which ftandards moft project a fuffici- 
ent diftance to give the buckets room to 
turn on pivots, and tip the contents into a 
receiver. The buckets may be hung at 
any diftance from each otber, and made to 
contain any quantity of water, according 
to the power applied. Befides this, there 
are other figures which exhibit the feyeral 
parts of the machinery, and different 
views of all the moft important articles. 
MR. JAMES BARRETT’s (SAFFRON-WAL- 
DEN), for am IMPROVEMENT 77 the 
CONSTRUCTION Of MALT-KILNS, /0 as 
16 PREVENT DAMAGE by FIRE, avd to 
SAVE FUEL in the DRYING of MALT. 
The improvement here defcribed con- 
fits in building kilns fo as to increafe the 
draught, which the patentee introduces 
fometimes under and fometimes over the 
New Patents lately enrolled. 
4385 
neck or furnace of the kiln, as well as by 
the fides. He introduces into the barrel 
or chimney of the kiln, an apparatus made 
of iron, or other fit material, which he 
denominates an extinguifher, as, by its 
being clofed, it will ftop the draught of the 
kiln, and thereby effeétually prevent fire 
from communicating to the cowl, if made 
of wood, as at prefent, but which Mr. 
Barrett recommends to be made of iron, 
or other proper metal, and of a peculiar 
conftruétion, without ribs, or any wood- 
work whatever ; and, when circumftances 
permit, he recommends, that the internal 
windows and doors of the kiln over the 
wire and their frames be made of iron 
inftead of wood, as it is not fubje&, as 
wood, to fhrink, {well, nor warp, by which 
means the cold external air will be kept 
out, and the draught of the kiln improved. 
Mr. Barrett builds the walls of the kila 
hollow, or double, fo as to leave a {pace 
between them, and he applies afterwards, 
according to circumftances, apertures, 
channels, flues, dampers, valves, &c — 
For drying pale-malt, he makes ule of a 
moveable furnace or ftove of a peculiar 
conttruétion, which may be ufed, with 
little alteration of the kiln, either for dry- 
ing pale or brown mait; and, by means 
of an additional contrivance, it will burn 
with advantage Newcaitle or pit-coal, 
without the previous preparation of beng 
burnt into coke. ‘The flame and heat 
from the furnace are conducted through 
the malt wherever required, without impe- 
diment from the wind when blowing hard 
from either quarter. 
Having afcertained the nature of his 
improvement in the ftruéture of malt » 
kilns, fo as to prevent damage by fire, 
and to fave fuel in the drying of malt, ke 
proceeds to defcribe particularly, by 
means of drawings, the manner in whica 
the fame is to be performed. In this 
part of the {pecification we cannot follow 
the patentee for want of plates, but we 
fhall quote, nearly in his own words, wnat 
he fays with regard to the extinguither to 
prevent damage by fire. It may be made 
of wood, but more properly of metal, and 
it is fo contrived, that, by pulling the wire 
cr chain pending therefrom down the fide 
of the kiln, and attached to the handle, it 
will either partially or completely clofe, at 
the option of the workman, the chimney 
of the kiln, and ftop or regulate the 
draught ; and if the wire or chain be con- 
tinued from the faid handle down to the 
fire-fide, the workman may, in windy 
weather, be enabled to regulate the 
draught and currency of air at his plea- 
fure with the greateft eale, and extinguifh 
the 
