New-York tribune., 1875-11-03
THE MINING ENGINEERS.
rur1R MEETING AT CLEVELAND.

THEIR MEETING AT CLEVELAND.
PAPERS READ on CUrMSEys-" BEssEMhh ~ ooN-
vrRTER BOTTOMS" AND THE LAKE suPEh'oh
corPEa MISRs.
C,ryEI.ANp, Ohio Oct. 27.-The lnstitute Oh
Mining Engineers Assem- led in the Couno |n"u"o '
morning The first paper prceencd Wy r. o"'".' "
the Edgar Thomson Steel Works. fiusohsRu' anu ~
lsted 10 the construction of two ninety 'eV' y"
. s,snsen,s heating furnace technical dcscnruoho vi
an, ,,nnsxs was presen cd. Each chimney has an ex-
go, haI of sheet iron which rests on an iron base
Mat, ami " thus securely anchored to the masonry ioui'
s.,,ou Flues are let into the chimney base from TWO
retjons one beug large enough for two furnaces Inc
base s carried eight feet above the general level OF the
yard The advantage OF this style of chimney, hr.
Barnes asserts IL that II gives tremendous drait anu
cannot be shaken toy the wind
The next paper was "Bessencr Converter Bottoms
by Robert Forsyth of North Chicago good idea OF the
e,porments and roeults OF which he treated can DC
gathered from the following extracts:
Ia working the Bessemer process. the bottom OF INC
er has always been source Of more trunpe an
annoyance. and the subject Of more ni a
sng pIapt This Will not appear remarkable
when tue dulles tbs refractory maternal hS 10
neudsI npon aisosttly for certain number Of heats,
schtates the work wonderfully. This ideally periee.
eonsa1 obiect st~elmasers searsh The lie OF
bottom ,bang accienis may DC sd 70 e anse cb ,G,i
heats Il generally considered satisfactory. , g.,
The consideration OF the dlmcniuSs encooh'srsm 10
mil led A. l.. nolley To design the method OF makns
bottoms 20 which I wish to call attention separate W
prcgS az they are called, prepared, conforming 10
the shape Of the spaces between and aIUrnd the ters
leaving enough between iheIa When ~ lce t4 isn
tho rsnmipg anno more Ihes1 Dreks se Oh eus M y,
iaIly te same material as the ordinary bottom sun sh1
tho are enoyed from the old- hch s made IN pieces
and tai the where they are died not purieo
by gentle heat for - hours and ere then eady l use
IN nswatnrr che tuy 1rcsare first inserted mthe tuye e
box tc bal then put IN place between ana AROUND
THIS method of bolt making las been IN Use Tor tive
SeSrs at rolllg mil in Cmcaso' ana Mr foIsytn % sses
by the BOTTOMS during seven months of eArTlmen..
rhc grcies- number % heats made by any one bottom
John A. pearse Of Philadelphia read long paper on his
Improved Bessenier Plant" The manner of working
Ihe copper VI tae Lake Superior Region was the
subject of treatise by Prof William Blake OF New
Haven Conn. Some statistics were also presented de
scribirg the "wOndrr finds OF mass copper WHICH soie
dine reward the operators.
Tho concluding paper of the forenoon was read by
charIes A. Ashhurp one Of the Assistant Ge"lcests OF
hc Second Geological Survey Of Pennsylvania IL re-
ated TO "a discovery which the author had made Oh ~
beds Of coal the vespertine sandstone 0f Huntington
County Penn The following is synopsis oI MI ASH
tuTne paper:
The occurrence OF these Goals in the vcspertDe forbh
rs rom separating this formation from the coal lher
proper. the base of which has always oeth on
tdered he the seIal cougiOmeTate No NIL Inc I'M
POrtauce of the discovery cannot be oVereslht'o iOh
Tins fact that VIII NOT only On
h,ncafurc explain the existence OF several is0tteu
beds OF coal previously found Pennsylvania The peloi
which The Ne'eliue Was formed, mas one % u III @
AGITATION and lJea currents as iuucsled ny Tue coHa'
ness anu false be idng of tie strata Durg us hecmu
.tion tner been repeatedly OceiflnS lntti
walls Ieposs with cODstcy Oi eea level which Is ne
tessary for the growth Uf coal piOducns NegeHiuh
Intervals between this growth the siata were eu
scl~ no doubt, regular OScil at1ry motion fathcf
(an 60 ANY sudd. paroxy ysma action 10y which nc
trfat @ was eleN acd 20 MAINTAIN vegetable ne ana
then submerged for the reception o comparatively thln
ttfata, before the formation OF another coal bed
The afternoon was devoted Ia an inspection OF places
OF interest about the city. The evening session opened
with the aoi tion resolution when was offered by
Mr. RAYMOND of the Centennal Commission, to the ef
feet that after the annual election Of officers, ANA wifi
out the transaction Of other business, the Nay meeting
OF 1876 be adjourned the third Monday Of June. or
such aier day as the Council may determine the ad
jour1Ied session I've held IN Philadelphia" Only two
raIeis wore presented tn the evoning-one on Closed
snd ,nsn p5ols tor Blist Furnaces" by G. Asnus Of
Eeu-Yorg. aud the other tie Effects OF Heat npOr
sleei" nv william MetoaH of Pittsburgh No business
meeting will b. ald nntil Friday evening, the intrrvei
lug being tO series oi excursions ana ell
l.r ainusnts provided Us the Local CJmui,tee.