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NEW PATENTS LATELY ENROLLED: 
MR. WILKINSON'S PATENT BOILER. 
(With a Plate.) 
N the fecond of July 1799, JOHN 
( WILKINSON, §5Q. of Wilkinfon’s 
_ Wharf, Rotherhithe, obtained a Patent 
for his newly invented Boilers. 
Thefe Boilers, inftead of being made 
either round, or of a fhort oblong {quare, 
with flues round the outfide, and the fire 
applied as in the commen method, are by 
me made of great length, without any flues 
round the outfide, and the fire more uni- 
formly applied, as fhewn by the annexed 
drawings.—Fig. 4, 1s\a horizontal fection, 
and fig. 2, a vertical fc€tion of a boiler, 
€o feet in length, and 6 feet in breadth. 
’ ‘The heat from the flues, paffing uniformly 
CY 
Dylpepfia te - 
along the bottom, rifes up at one end, and 
returning by flues paffing through the wa- 
. ter to the other end, opens into the chimney 
which carries off the fmoak.—Fig. 3. is a 
horizontal f{eStion ef another boiler Go feet 
in length and 12 feet in breadth, with two 
. partition walls underneath, dividing its 
bottom longitudinally into three {paces. 
‘The heat from the fires, which are placed in 
the two outer {paces, paffing along the 
bottom toone end, returns back through 
the middle fpace. under the bottom, to the 
other end, opening into the chimney as be- 
fore.——The advantage in thefe boilers con- 
fifts in their being of greater lengths than 
thofe made in the common way, and being 
without flues,/on the outfide ;—the fire 
being apphed folely to the bottom in the 
one cafe, and in the other with the return 
through the water ; which admits the boiler 
to be made of half the breadth. — The 
length and breadth of thefe boilers, and 
number of fire-places, may be varied at 
pleafure. 
Reference to Fig. 1 and 2. 
Fig. 1, is ahorizontal feGtion, and Fig. 
z, a vertical feétien of a covered boiler 60 
feet in length and 6 feet in breadth; —a, 
fhews the fituation of the fire-grates ;—/ 
6, the flues which. convey the heat through ~ 
the water, and go to the chimney c;— 
d, the capacity in the boiler for water and 
fteam;—é, divifions inte, which liquids 
are conveyed to fupply the boiler, and te 
defend thofe parts from the fire. 
Reference to Fig. 3. 
Fig. 3, is a horizontal feétion of an 
open boiler, 60 feet in length and 12 fees 
in breadth ;—a, the fire-grates ; — 4, the 
flue under the boiler, that receives the 
heat from the grates, and goes to the 
chimney ¢. 

, 
LIST OF DISEASES IN LONDON. 
Account of Difeafes in an Eaftern Diftrifl of Londou, from 2oth of Aug: to20th of September. 
ACUTE DISEASES. 
s a) No. of Cafes. 
df (ae ay gravior Hae - 2 
‘Typhus mitior - - 4 
Qaotidian a =e = I 
Pneumonia .* ~~ = = 3 
Catarrhus BGs - Me z 
Meailes = i ~ = 2 
Acute Rheumatifm = = 2 
CHRONIC DISEASES, 
Afthma = ae a 2 ‘4 
Cough = - i= iz 
Dyfpnea - = = 9 
Phthifis Pulmonalis neh a 5 
Pleurodyne ee 2 = 4 
Cephalza =a = pa 4 
Epulephia ~ - - x 
Vertigo < = = = 4 
Syncope = = = = 3 
Palpitatio ~~ x = = 2 
e: & 
Viomitus (74>. = re 
Gaftrodynia mF - = 
Diarrhea Sh ene o YT 
Dyfenteria, ~ - - 2 
Colica - = s bh 
Colica Pittonum = - FE 
Hemorrhois = - Se 
Dolor Nephriticus - = 
Menorrhagia - = c 
Prolapfus Vagine - < 
Dyfmenorrhea - = eS 
Amenorrhea s - 2 
Cancer in Utero - = - 
Chlorofis - 3 ae = 
Dyfuria me sF aii = 
Enurefis - - es ss 
Hyfteria = m4 = S 
Scrophula - = = 
Herpes = oe a ~- 
-Licken = Nae > Hs 
Piora - 2 gs 2 
‘ PUER- 
[OGober, 
me HPW NP HP Rw PW NWA bb ba 

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