Richmond enquirer. [volume] (Richmond, Va.) 1815-1867, 1844-01-06

| a. I.o,r,sr Isvr,T1o.-We publish below, a re-
ooi made by persons of great intelligence and comPe
t,nce in such matters concerning an invention OF W
Ethan Campbell of This City, which promises to eiiec'
an important change in steam Navigation -
| w. have seen drawing OF Mr.. Campbell ihVen-
,;on which ars 10 US be ofsurpslng
ty and efficiency 1t provides against the waste OF ne"'
and of power, and makes an explosion Impossible,
Mr. Campbes self feeding apparatus was ou'i' 'of OF
the Government and is soon to be placed on ooatu o.
one Of their steamers ANY information respecting IT.
can be obtained by calling on Mr. Chambers, at Inc
American Institute. [.Nt,c YORK. EOentog Post.
REPORT Of the Committee OF The american insu.''e on
Mr. Ethan Campbers SelfFeeding Apparatus tor
supplying Steam Boilers with Water.
The committee appointed 10 examine Nr. E'nan
csmobels selfecrding apparatus for supplying all
kinds of steam boilers with water, beg leave TO report
that they have carefully examined The same, and have
no hesitation in recommending IL as the mosi Pe.eo
machine which has yet been invented (as lar as they
| know for the above purpose.
Tbi, machine like many others, although simple in
s operation and easily understood from Inspection IS
difficult 10 describe without the aid of drawings; Inc
committee therefore, will not attempt minute de-
| scriplon.
for which il is designed and when put in operation re-
opires hut little if any attention, from the engineer TO
keen the water in the boiler constantly up TO the same
level This is matter OF importance IN all cases,
more especially for boilers in steamboats, Us it probably
the chances for explosion, and consequently Inc ioss
of life.
Mr.. Campbells self.reding apparatus takes no power
from The engine TO work it, as does the common ieed'
pump it operates by beautiful application oil The prIn-
ciule of hydrosta,c pressure, and only requires little
steam from the boiler for It's acton and the steam by
benr col densed heats the water which returned 10
the boiler cons qncn!ly but little heat IS lost.
There IS also an ingenious and simple arrangement
for condensing The exhaust ste of high pressure en-
he hnil Is
10 the boiling point Of PIP degrees Farenhei, which
will make very great saving in The art'o!a Of utl.
A most important recommendation, and wh'ch 10
dcaderalum in oil machines, IS IFS simplicity ana AURA
blity The apparatus examined by The committee is
now in opcralon attached The boilers of the steam
saw mili in fourteenth street, near the North r'ver
and has before been at work for many months, supply
ing The boilers Of a twenty-five horse power engine
using sea l40 lbs TO The square inch, during which
time, as far learn, and ere informed, II has
never suffered any arrangement nor required any re-
pairs
The gelffccdng apparatus can instantly be convert.
ed into powerful engine for throwing water and
ing the from any depth by successive It's, thus
placing at hand the means of eangulsh'ng hres, which
| is invaluable in steam gatnn, ard, with some
slight notifications in its construction, may be mace
applicable TO many useful purposes, such ~ ras'ng
water FROM ships, mines coi.r- dams, &c, NC
| This invention is evidently the result of long and
deliberate reflection, perfectly ph'lnsoih raj IN liz prn-
cples, ard from the best nforma'ion which the com
mee can obtain, is entirely original in its application
rejecting gres. credit upon tie ingenuity, intelligence
and mechanical knowledge of the inventor.
| The committee are OF the opinion that this is one Of
the mos; imp otlnt nvt nons connected wth the iced
ing of steam boilers which has been preaened TO
the public and recommend j. 10 the especial attention
OF the American Institute, considering it entitled TO
their highest reward.
EDWARD CLAEK. Chsirmas
Prof JAS kENwicK,
Prof JSo. STEELE,
T. B. SriLLMas,
| Gro. &. DEKAY,
| PArL r. Honor,