IMPROVEMENTS IN STOVES FOR THE COMBUSTION OF COAL OIL
Year: 1874

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine,
Lake, & Co., Patent Agents, Southampton Buildings, London, for
the Invention of "IMPROVEMENTS IN STOVES FOR THE COMBUSTION OF COAL
OIL." A communication from abroad by James Henry Thorp, of
the City and State of New York, United States of America.
PROVISIONAL SPECIFICATION left by the said William Robert Lake
at the Office of the Commissioners of Patents, with his Petition,
on the 11th April 1874.
I, WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co.,
Patent Agents, Southampton Buildings, London, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN STOVES FOR THE COM-
2 11

page_text: without the use of water wicks by flanking the wick tubes of the burner
on both sides with water chambers extending nearly to the top of the
said tubes, and communicating at the bottom by means of pipes with a
main water reservoir, which also extends to a sufficient height to keep it
at the proper level within the aforesaid cooling chambers.
The said Invention further relates to a mode of supporting the lamp
chimneys upon a perforated guard plate resting on the wick jackets, and
surrounded by a rim or hoop which forms a neat finish, and further
assists in keeping the connected chimney in place.
From the base of the lamp constituting the oil reservoir rise the wick
tubes, on each side of which are water chambers rising nearly to the top
of the wick tubes, and communicating through the said horizontal pipes
or ducts with the water reservoir. Toothed wheels are attached to
longitudinal shafts and project into the wick tube for the purpose of
clevating and lowering the wick; the water chambers on the side of the
wick tubes to which the elevation is applied are separated toward their
upper ends taking the form of flat tubes, each occupying the intervening
space between the adjacent elevator wheels. Picces of pasteboard may
if desired be introduced in the water chambers to prevent water slopping
over on the oil wicks in moving the lamp.
The chimney is preferably formed of sheet iron tubes with mica
windows fitted at their lower ends to a cast-iron deflector plate, which
has deflecting "cones" elongated to adapt them to the long wick tubes.
The upper ends of the chimneys are fitted to a cast perforated plate, and
the parts are secured together by a bolt and nut. The base plate of the
chimney rests on a perforated safety plate supported by the wick jackets,
and surrounded by a hoop or rim which rests at one side on the wall of
the water reservoir, and at the other on the elevator shafts. The said
hoop forms a neat finish and assists in keeping the chimney in place.
This mode of supporting the chimney enables me to dispense with legs
resting on the deck of the lamp or stove. Notches are formed in the
lower edge of the hoop to adapt it to fit over the elevator shafts and over
the edge of the water reservoir.
In addition to the customary feeding opening through which the
reservoir is supplied with oil, and which is closed by a screw cap, domes
rising from the deck of the lamp and covered by hinged lids are

page_text: especially provided to give access to the wicks within the reservoir. The
hinged lids also serve a useful purpose as safety valves in the event of
the oil in the reservoir becoming so heated as to generate gas.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Robert Lake in the Great Scal Patent
Office on the 10th October 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of April, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said William Robert Lake, Her special licence
that I, the said William Robert Lake, my executors, administrators, and
assigns, or such others as I, the said William Robert Lake, my
executors, administrators, and assigns, should at any time agree with
and no others, from time to time and at all times thereafter during
the term therein expressed, sliould and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention
for “ImprovemeNTS IN STOVES FOR THE COMBUSTION OF COAL OIL," a communi-
cation to me from abroad by James Henry Thorp, of the City and
State of New York, United States of America, upon the condition
(amongst others) that I, the said William Robert Lake, my executors
or administrators, by an instrument in writing under my, or their, or
one of their hands and seals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was
to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Robert Lake, do hereby
declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained

page_text: in and by the following statement, reference being had to the accom-
panying Drawing forming part of this Specification.
This Invention relates in part to improved devices for applying water
to prevent the overheating of the wick tubes. This object is effected
without the use of water wicks by flanking the wick tubes of the burner
on both sides with water or cooling chambers extending nearly to the
top of the said tubes, and communicating at the bottom by means of
pipes with a main water reservoir, which also extends to a sufficient
height to keep it at the proper level within the aforesaid cooling
chambers.
The said Invention further relates to a mode of supporting the lamp
chimneys upon a perforated guard plate resting on the wick jackets, and
surrounded by a rim or hoop which forms a neat finish, and further
assists in keeping the connected chimneys in place.
In the accompanying Drawing Figuro 1 is a plan of my improved oil 1
stove with the chimney removed. Figure 2 is a vertical section of the
said stove including the chimney on the line x, x, Figure 1. Figure 3.
is a vertical section of the same on the line y, y, Figure 1.
From the base A of the lamp constituting the oil reservoir rise the
wick tubes B, on each side of which are water chambers C, D, rising
nearly to the top of the wick tubes, and communicating through
horizontal pipes or ducts E with the water reservoir F. To accomodate
the toothed wheels G which are attached to the longitudinal shafts H,
and project into the wick tube B for the purpose of elevating and
lowering the wick, the water chamber D on the side of the wick tubes to
which the elevator is applied are separated toward their upper ends
taking the form of flat tubes d, each occupying the intervening space
between the adjacent elevator wheels. Pieces of pasteboard may if
desired bo introduced into the water chambers C, D, of sufficient thick-
ness to prevent water slopping over on the oil wicks in moving the
lamp.
The chimney is preferably formed of sheet iron tubes I with mica
windows i fitted at their lower ends to the cast-iron deflector plate J, the
deflecting "cones"; of which are elongated to adapt them to the long
wick tubes. The upper ends of the chimneys are fitted to a cast
perforated plate K, and the parts are secured together by a bolt L, and
nut M. The base plate J of the chimney rests on a perforated safety

page_text: plate O supported by the wick jackets C, D, and surrounded by a hoop
or rim N which rests at one side on the wall of the water reservoir F,
and at the other on the elevator shaft H. The said hoop forms a neat
finish and assists in keeping the chimney in place. This mode of sup-
porting, the chimney enables me to dispense with legs resting on the
deck of the lamp.or stove.. Notches n are formed in the lower edge of
the hoop N to adapt it to fit over the elevator shafts, and over the edge
of the water reservoir.
In addition to the customary feeding opening P through which tho
reservoir A is supplied with oil, and which is closed by a screw.cap Q,
domes R rising from the deck of the lamp and covered by hinged lids S
are especially provided to give access to the.wicks T, within the reservoir
if the wicks become foul or if they are turned too low and so escape
from the elevator wheels. The hinged lids also serve a useful purpose
as safety valves in the event of the oil in the reservoir becoming so
heated as to generate gas, which when confined produces pressure and
may cause an explosion.
-
Among the advantages of my improvements may be mentioned the
following: The water reservoir extends to a sufficient height above the
rim of the lamp to admit of keeping the water in the chambers C and D
nearly on a level with the tops of the wick tubes, causing a greater
evaporation of water, the vapor coming in direct contact with the flames,
thereby intensifying the heat, producing more perfect combustion, and
preventing odor. The peculiar construction of the water tanks prevents
the carrying up of any oil which may be accidentally spilled by the
water so as to cause smoke or smell. Movable legs resting on the deck of
the lamp and employed to support the chimney are objectionable, for the
reason that they cause rust and consequently leakage. These difficulties
are entirely obviated by the above described mode of supporting the
chimney. The entire stove is cleanly and simple in its operation, and
can be safely and conveniently used even by persons not familiar with
the working of oil stoves.
Having thus fully described the said Invention as communicated to
me by my foreign correspondent and the manner of performing the
I wish it understood that I claim,―
same,
First. The water chambers C and D, conducting pipes E, and reservoir
F, all combined and arranged to operate as above described.

page_text: Second. The chimney I supported on the perforated guard plate O in
combination with the rim or hoop N, substantially as set forth and for
the purposes specified.
In witness whereof, I, the said William Robert Lake, have here-
unto set my hand and scal, this Ninth day of October, in
the year of our Lord One thousand eight hundred and seventy-
four.
Witness,
HENRY JAMES NOONE,
8, Southampton Buildings,
London.
W¼. ROB™. LAKE. (L.S.)