IMPROVEMENTS IN TOBACCO PIPES
Year: 1862

page_text: LETTERS PATENT to William Clark, of 53, Chancery Lane, in the
County of Middlesex, Engineer and Patent Agent, for the Invention
of "IMPROVEMENTS IN TOBACCO PIPES." -A communication from abroad
by Mr. Paul Ambroise Doury, Proprietor, of 29, Boulevart St. Martin,
Paris
PROVISIONAL SPECIFICATION left by the said William Clark at the
Office of the Commissioners of Patents, with his Petition, on the 25th
February 1862.
I, WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex,
Engineer and Patent Agent, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN TOBACCO PIPES," to be as follows:-
Tobacco pipes as hitherto constructed, whatever may be their form or nature,
possess certain defects, as the tobacco when smoked is not only disagreeable to
the taste, but also from its narcotic nature is liable to injure the health of the
smoker. The pipe is ordinarily formed with a bowl or combustion chamber

page_text: of greater or less capacity, in which the tobacco is pressed so as to form a mass,
which is lighted at one end, and suction taking place at the other extremity.
In this manner the products of combustion and distillation of the upper layers of
tobacco traverse the lower part, whence they are discharged by the condensation
of the nicotine vapours. When the upper layers, which possess a tolerably good
flavor, are consumed, the smoker presses down the under part, which from its
spongy nature imbibes the narcotic products and the smoke becomes acrid and
injurious. Thus the material of which the pipe is formed, instead of being
impregnated with the essential oils of the tobocco, absorbs the noxious juices
until finally the. pipe becomes an agent of infection and a slow poison.
Attempts have often, been made to purify the smoke by means of narghile's
or other apparatus, which have however only partially succeeded, and even
then only by the employment of complicated apparatus, which are very costly
and but little suitable for being carried about.
This Invention relates to an arrangement of pipe by means of which the smoke
is prevented from traversing the lower layers after escaping from the upper
part. For this purpose I make use of an ordinary pipe of any form, material,
or dimensions, in the bowl of which I place a smaller hollow chamber or bowl,
having an annular space around between it and the external pipe bowl, which
serves for the passage of the smoke, several rows of holes are made obliquely
in this inner lining, so as not to be liable to choke with the ashes, which holes
allow the passage of the smoke into the annular space in communication
with the suction tube or stem.
In this manner the tobacco will be consumed layer by layer, and the pro-
ducts of combustion and distillation will be prevented from traversing the
lower layers to bo aspirated afresh. On the pipe being filled with tobacco and
lighted, the smoke from the upper part passes off into the annular space
through the holes in the circumference of the inner chamber, and in proportion
as the combustion proceeds the smoke passes off through the holes immediately
below without traversing the under layers of the tobacco. The inner chamber
may be readily removed for the purpose of cleansing the pipe, or another one
may be substituted at will, which is a great advantage, especially when using
high priced meerschaum pipes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed'
by the said William Clark in the Great Seal Patent Office on the
22nd August 1862.
TO ALL. TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CLARK, of 53, Chancery Lane, in the County of Middlesex, Engineer and
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of February, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fifth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said.
William Clark, Her special licence that I, the said William Clark, my
executors, administrators, and assigns, or such others as I, the said William
Clark, 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, should 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 TOBACCO
PIPES," a communication from. abroad by Mr. Paul Ambrose Doury,
Proprietor, of 29, Boulevart St. Martin, Paris, upon the condition (amongst
others) that I, the said William Clark, 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 Clark, 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 in and by the following statement,
reference being had to the Sheet of Drawings hereunto annexed, and to
the letters and figures marked thereon (that is to say):-
-:
Tobacco pipes as hitherto constructed, whatever may be their form or nature,
possess defects, as the tobacco when smoked is not only disagreeable to the
taste, but also from its narcotic nature is liable to injure the health of the
smoker. The pipe is ordinarily formed with a bowl or combustion chamber.
of greater or less capacity, in which the tobacco is pressed so as to form a mass,
which is lighted at one end, suction taking place at the other extremity. In
this manner the products of combustion and distillation of the upper layers of

page_text: tobacco traverse the lower part, whence they are discharged by the condensation
of the nicotine vapours. When the upper layers, which possess a tolerably
good flavour, are consumed, the smoker presses down the under part, which
from its spongy nature imbibes the narcotic products and the smoke becomes
acrid and injurious. Thus the material of which the pipe is formed, instead of
being impregnated with the essential oils of the tobacco, absorbs these noxious
juices until finally the pipe becomes an agent of infection and a slow poison.
Attempts have often been made to purify the smoke by means of narghile's or
other apparatus, which have however only partially succeeded, and even then
only by the employment of complicated apparatus, which is very costly and but
little suitable for being carried about.
This Invention relates to an arrangement of pipe by means of which the
smoke is prevented from traversing the lower layers after escaping from the
upper part. For this purpose I make use of an ordinary pipe of any form,
material, or dimensions, in the bowl of which I place a smaller hollow chamber
or bowl, which serves for the passage of the smoke, several rows of holes are
made obliquely in this inner lining, so as not to be liable to choke with the
ashes, which holes allow of the passage of the smoke into the annular space in
communication with the suction tube or stem.
According to another arrangement, which is preferable as regards the coloring
of the pipe, instead of having an annular space surrounding the inner com-
bustion chamber, I make annular grooves or channels.in the exterior of the
combustion chamber and fit it closely within the bowl. I also perforate tho
inner chamber with holes in communication with the inclined or vertical grooves,
which latter terminates at the point where the stem springs from, and which
are traversed by the smoke. By this means it will be seen that these grooves
answer the same purpose as the annular space of the preceding arrangement
and also facilitates a regular and perfect coloring of the pipe. In the annexed
Drawing is represented the improved pipe of this Invention.
Fig. 1 showing a central vertical section of a meerschaum pipe, and Fig. 2
an elevation of the inner chamber. The same letters of reference indicate like
parts in the two Figures. a, bowl of the pipe of any suitable form or material;
b, second chamber fitting into the chamber a; c, holes made one above the
other in an oblique direction in chamber 6, so as to prevent their becoming
choked with the ashes of the tobacco; d, helicoidal grooves or channels made
in the outer surface of chamber 6, through which grooves the smoke circulates
before passing to the mouth; f, ring or washer of cork or other elastic material
for forming a tight connection between the bowl and the inner chamber.

page_text: Having described the nature of this Invention, and the manner of per-
forming the same, I declare that what I claim as the Invention to be protected
by the herein-before in part recited Letters Patent is the construction of the
improved pipe herein described and represented in the Drawing annexed, and
which I term "pipe ardennaise," having two chambers, one fitting in the
other, whereby to prevent the smoke from passing through the lower layers of
tobacco, and so to keep them free from narcotic vapours.
In witness whereof, I, the said William Clark, have hereunto set
my hand and seal, this Nineteenth day of August, in the year of
our Lord One thousand eight hundred and sixty-two.
Witness,
W. G. E. SwINNOCK,
53, Chancery Lane, London.
W. CLARK. (L.S.)