Washington sentinel. [volume] (Washington [D.C.]) 1853-1855, 1854-10-01
MisfEIlaMkgas.
q WOOD GAS.-CAUTION.

.-------------
W WOOD CAsCAJrTION.
U,. sno,yn shat u. the subscriber oh
X ,.ired Is,,ers naient in December. 1851. for
- anna,a,ns a., ne destructive distillation OF
roo, rand ,ha maxim therefrom Of tar or pitch al
nlsas,ra anJ -as ana thaf IN tbe Judgment ot
romne,ent VERSIONS The invention Of an appar-
-. - ,,,,, r.,an,.d hv w n Porter cannon he
iL.,L;n 49,, 49,, ,.rso. w;,aou, infr;no.
;ro NJ, ~ sa;d na,ant And further. tbat what IS
,asentsd hu sa;d Porter rightfnIy belongs TO me.
20 - 800 sra 7ona hsfore The limited
S,a,as pp,aa, 0f;eo ana fnr1her that ihe use Of
said PorteTs invention involves also process
,vh;ch Isna now cIa;mny before The United states
P.,en, OGce and which has been adiudeed 10 be
ns,sn,.,S,a =. 49,. e., ,nven,or ,hereof and which
p ia W. n po.,sr hss nrmaliv d;scIaimed. as an.
nsars mon the nublic records Of said Office, OF
ruh;ch an ntc;aI conv is hereto annexed. and also
p,e - N',;.,,rI of,be o5ah ,rs,an,
M pn,,sr snnouncss 1hat he has secured bv
ra,.r, III s.rc,,,s;y~ ,,ght ~, mak,n,r Uas from
WOOD u and ihreatens nrosecution 10 ali parties
infrnring his naient. / ask how this statement
comnorts with the fact Of nv patent Of December,
1eSIr aJ =, ~ "a ,ha thraa, ~ : irtimida,e upder
snch circumstancesa Mr.. Porter's claim is based
mon movable perforated diaehragm, and was
sa s,ooJ hv the Patent Of6ee "A il appears
f.o,, ,ba- r.corjs If The patent Office that his
claim Wa. Al 6rst refused as interfering with
pa,vr pa.e1a - Th;s claim as given he.
low and in which the perforated diaphragm is the
sav;no cla,,se ia ,rha, Mr Porter calls securing
he uexcIns;ve right 10 making eas from woodb
The sta,ement carries absurdity on its front, and
is q hel ON The rood sense of The Patent Oice
IF such claim or right had been granted, it would
forh;d avary coaI-t;In and charcoal manufactory
IN III. country.
rbe f,lou,,,o comics of corresnondence and
ax,rac,s from he ,erords of The Parent Office will
sLo,., ,ha ,,na s,ata &c The ease. I
Arms 25. 1854
2 S,u In,renlu IN vour letter Of this date. asking
a IL anv natent has been granted 10 w. d. Porter
aa,ea SsS S Ausus @ ,1 o. ns,sons G securing 10 him
~ any ILL., - .y;, ;.S, ar M L;n . oas Gon,
NJ X pns,a. ,,nJar NJ annl,ca,;on for ns,eni.
,vh;ch ls,,srs na,ant were ,ssred hearing the
49, aa,a -, 70 ;nf,rroed ,hat w n Porter,
a.;,,,. ars h.I;sved ,n he a6ned "a hi. apnara
,,'a..na f,,,h.. ,h;s ofy;ca 4. NO, aware that
.as, aIa 49,. Al hs,s,oc,rs for the erci,,
Pa'en. uss % 1een 80. ,.eaa r, uod
however, oe Ja.;no,; nsu,nr ,onr 70,
80, Gu ''t'e = IL
q""eess,,. ....,o.u,, ,,,,,. oh.a;.n, s.rvan, 7t,
-' q, M Gov conmis.;oner Of Parents.
w n .sca'..r1 T5I
60 as p.or r." r = Paga washing,on. n. G.
;, p-.on n. IN %
10 sla ..I"I .Is.s.,..s .G,U .o,n. crst;ug
o.o" 49, r. ~, ~ $1,000 + ,rs,s .onv
ca, h.s - ~ es,.y &c a. .,,ac, So,,
iroIi 's1 h 's or H. anrl;ca,;o oS w
RsPo. pa v' g.. ia,,a.s na,sn, in accordance with
-, ui'e' ~. - 40 - ;ssnad, 20 ,La
wn,cn aPr,'cIuon leuers pa'e on, az. as Soa, -.
eighteen hundred and fiIty-four 't.@
In tes,imony whereof, 1! Charles Mason, Com
missioner Of Patents, have caused the seal
of the Patent Office 10 he hereunto affixed
H.. 81 this 25th day Of August, in the year of
Lord one thousand eight hundred and fifty
four, and ofthe independence fthe United
States The sevenfy-ninfb C. MAsor
Copy Of disclaimer Of w. ID. Porter ta ms oppieG.
non for /" an improurd sfH for MAKING fcood
gas 6led August 5, 1854. Lsttsys patent issued
al do oot claim as nv invention and discovery
the improvements in making gas from wood, viz !: