Washington sentinel. [volume] (Washington [D.C.]) 1853-1855, 1855-01-03
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n E5it known That /. HaAA Anbscriber OBJ
.ess"s'us d'.aaa ass, e' or
wood ssddAs making thSseir2snl Of tar or pitch a, a,
psas ns q l'asmsns as sppa. =.
tos rseeSsS oten,sa 10 VIZ. Porter cannot be
used by him m~a&hAsas>P person without infring-
ing nv said patent And, further, that what Is
pats,,ted by said Porter rightfully belongs TO me-
as | expect TO prove ere long before the ohitea
States Patent Office and, further, that the use OF
sad Porler's invention involves also process
which am now claiming before the United States
Patent Office and which has been adIudSed 10 he
patenlable the first inventor thereof and which
said w. ID. Porter has formally d,sciaimed as ap-
pears upon the pubic records ef SAID once, oi
which an oflcial copy is hereto dnbcAeu anu aiso
"A copy OF his claims. .I.
la the Natonl IateHsgeacer of the 25th instant
Mr. Po-ter announces fFi.st he has sesaT1d by
prtent tue exclusive right 10 making gas rom
wood" and threatens prosecution TO all parties
lnfringips his patent. | ask how this statement
comports with the fact OF my patent OF December,
1871 and ho W far the threat eau nttmdale under
such circumstances Mr.. Porter's claim u based
upon a movable perforated diaphragm, and was
so understood bv the Patent Office, rs II appears
from the records OF the Patent Ottice that his
claim WAS at first refused interfering with a
prior patent 10 Robert touhs, of Canada, Tor an
equivalent contrivance. THIS claim, as gwen bs
low, and in which the perforated diaphragm Is the
saving clause is what Mr. Porter calls securing
The exclusive right 10 making gas from wood
The statement carries absurdty on It's front, ana
is a libel on the good sense of the Pajen, Once
II such claim or right had been granted, II would
forbid every coai-kiln and charcoal manuiactory
IN Inc country
The following copies of correspondence and
extracts from the records OF the Patent once VIII
snow III. true state OF the case
UNITED STATES PATENT OptIcE,
4agna 25, 1854.
SIR. Ia reply 10 your letter OF this date, asking
+" il any patent has been granted 10 W ID. Porter,
dated 22d August, 1854, or Al any other time, or
10 suy other person or persons, securing 10 him
or them ,hs erciestpe RIGHT of making gas fr0m
rood" and whefher any such clam was made by
w. ID. Porter, under his Application Tor a patent
which letters patent were ISSUED bearing the
above date, YOU are informed that w. ID. fortefs
claims are believed 10 be mined 10 has appara-
tus and further, this Office is not aware that
patent has been granted heretofors Tor the srcl"-
right Of ma&tng gas from roSd II would,
however, be unlustrhsble 10 expect me- 10 make
extended lnvesugauon 10 answer your re-
quest
am, respectfully your obed,ent servant,
&. Mason, COMMISSIONED OF Patents.
" 7 McCoNAALI. Esq
Care OF Prof c & Page, Washington, ID G.
Thr Unasd S,a,es Patsaf OFcs-To all persons 10
lohom these presents snail come, gJftHg
Thus /, 10 certify that the annexed =, d true copy
RON the nl-s OF this office 81 extract from
pa per filed III The matter OF the application OF N
d. Porter for letters patent, III accordance with
which application letters patent were ISSUED 10 the
-sd w b.. Porter on the 2ld day OF August,
eighteen hundred and hhy y-tonr.
Ia testimony whereof, Charles Mason, Com
missIon-r of Patents, have caused The seal
otL a- Patent Office 10 he hereunto xed
H. : this 21th day Of August IN the year of oar
Lord on. thousand eight hundred aud nty
l,,,, NJ Al lu1I. al
States the seventy ninth. {. MASON.
Copv 81 disclaimer Of w. H. Prr>r b. o37'i'co.
.,,., fvy ''os t0p,,,.I snh f"r m"t,R.r t"ood
gI' fi," h"e"'f7 =, 1914. i-he> raH,aI tssmed
AngrSf Z2, lS:I.
q do not claim ~ my invention aud discovery
tie improvements IA making gas IRON wood VIZ
-uh,-ctlns the products OF destructive dtstIiauou
thrr-front to high degree ot heat, substantially
- ha> been described aud tor the purposes set
forth ~ the sreclhcation ot W Mcdonnell
The Tna,d Statss Putem OFce-T0 all PERSONS 10
uhonp th.Ss presents shall conn, grsamg
THIS " 10 certify that the annexed Is true copy
from the records Of THIS Office of an extract from
the specialization OF w. d. PorterS patent ISSUED
on the twenty second day of August, eighteen
hundred and hRy-tour.
Ia testimony whereof |, Charles Mason Com
missioner ot Patents, have caused the
seal OF the Patent Office to be hereunto
=, hfNed th'S twenty hUh hHy OF august
t. - IN the year OF our Lord one thousand
eight hundred and hny touE and OF the
independence OF the United StaIes the
seventy-ninlh. 4. MASON,
Erract from SPECIFICATION of W d. Porter on
,rh,ch hHsys potsRf tSs"ed Angnst n, 1884.
CLAIM-Whst clam my invention and de
SIRE To secure By letters patent
The construction Of gas apparatus or sttl
go insisting of metallic or other cylinder Il the
cones T. and ID, diaphram plate G, and exit pm,
+. substantially as described IN the foregoing spe
q ct6catton, aud shown IN the accompanying draw
Incs.'
The truth orthe above may be asceraned from
the records Of tie Patent Office, TO which all have
access
WIN 2. MCCONNELL
BY his attorney CllAS. G. PAGE.