Improvements in Tobacco Pipes.
Year: 1894

page_text: Date of Application, 27th July, 1894-Accepted, 1st Sept., 1894
COME MID
DICATION.
Improvements in Tobacco Pipes.
We, GEORGE GAYNOR KERR, residing at 59, Carleton Street, and JOHN
LATIMER KERR, residing at 349, Jarvis Street, in the City of Toronto, in the
County of York, in the Province of Ontario, Canada, Brokers, do hereby declare
the nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :—
This invention relates to improvements in tobacco pipes, and the object of the
invention is to so construct the tobacco pipe that nicotine cannot possibly form or
accumulate in the bowl or stem of the pipe and also to so construct the pipe that
the tobacco in the bowl will be burnt to a clean ash; and the invention consists
essentially of making the bowl and stem preferably of one piece and forming
through the stem and into the bowl a direct passageway of substantially three-
eighths of an inch in diameter to permit the free passage of the smoke from the
bowl to the mouth-piece, and prevent the condensation of the smoke and the
accumulation of the nicotine in the bowl or pipe stem, thus rendering the pipe
always dry, clean and sweet, and removing that sharp and biting taste so often
experienced by smokers. It is also part of our invention to provide the stem with
a series of grate bars to support the tobacco in the lower end of the bowl, and
prevent it (the tobacco) passing from the bowl into the stem either whilst filling
the pipe or whilst smoking the same.
Figure 1 is a sectional view of the pipe showing the enlarged passageway through
the stem.
Figure 2 is a sectional view of the same showing the grate bars within the
passageway at the lower end of the bowl.
Figure 3 is a sectional view on the lines a-a Figure 2.
Figure 4 is a view on the lines b-b Figure 2.
Figure 5 is a perspective view of the mouth-piece and the grate bars.
Figure 6 is a perspective view of the grate bars.
Figure 7 is a cross sectional view of the mouth-piece.
Like numerals of reference refer to like parts throughout the Specification and
drawings.
The bowl 1 and stem 2 are of any ordinary size and shape and are preferably
made of one piece. Formed through the stem 2 to enter the bowl 1 is a passage-
way 3 approximately three-eighths of an inch in diameter; the said passageway
being of the same diameter from end to end of the stem 2. Fitted into the end of
the stem 2 is the projection 4ª of the mouth-piece 4, whilst the shoulder 4° of the
said mouth-piece butts against the end of the stem 2. Formed centrally through
the projection 4 is a diminished opening 5 which connects with the enlarged
opening 6 through the mouth-piece 4. By providing the stem 2 with the enlarged
passageway 3 and making this passageway of a uniform diameter from the end of
the stem into the bowl 1, the smoke will be permitted to pass from the bowl I
through the stem 2 in an uncondensed volume to the mouth-piece 4, and the
accumulation of nicotine in either the bowl or the stem from the condensation of
the smoke, will be entirely prevented thus rendering the pipe always dry, clean
and sweet.
It is only from the result of an experiment, covering a large period of time, that
it has been found that passageway through the stem of a uniform diameter of about

page_text: three-eighths of an inch, leading direct into the bowl, will prevent the formation or
accumulation of the nicotine. To provide a means to prevent the entrance of the
tobacco into the stem from the bowl and at the same time to allow of the free
passage of the smoke in an uncondensed volume from the bowl to the mouth-piece
through the stem we provide what we call the grate bars 7. These grate bars are
three in number and are so arranged to effectually arrest the passage of the tobacco
from the bowl into the stem 2 without interfering with the passage of the smoke.
By reference to the drawings it will be noticed that within the stem 2 and at that
end of the stem where it adjoins the bowl, is a metallic sleeve or tube 8 having
each of its ends, 9 and 10 respectively, open and having an opening 11 in its upper
side opening direct into the bowl of the pipe. The grate bars 7 are soldered or
otherwise secured to the sleeve or tube 8 and across the opening 11, and it might
here be stated that the grate bars 7 are arranged preferably equi-distant from each
other. Connecting the sleeve 8 with the mouth-piece 4 are two wires 12 one end
of each of which is connected to the sleeve or tube 8 whilst the other end is
detachably connected to the projection 4 of the mouth-piece 4. The withdrawal
of the mouth-piece 4 brings with it the sleeve or tube 8 and grate bars 7 and the
object of connecting the tube or sleeve 8 with the mouth-piece 4 is for the purpose
of easily removing the sleeve or tube when required. This arrangement of grate
bars does not interfere in the slightest degree with the main object of the invention
as the grate bars are so arranged as to permit of the free passage of the smoke
from the bowl into and through the passageway 3.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The tobacco pipe hereinbefore described and illustrated in Figure 1 of the
drawings.
2. The tobacco pipe hereinbefore described and illustrated in Figures 2, 3 and 4
of the drawings.
3. In a tobacco pipe the combination of the bowl, a stem formed integrally with
the bowl, a direct passageway of substantially three-eighths of an inch in diameter
formed through the said stem into the bowl, and a mouth-piece connected to the
end of the stem, and a passageway through the mouth-piece connecting with the
passageway through the stem, substantially as described.
4. In a tobacco pipe the combination of the bowl having its inner walls converging
towards the lower end, a stem formed integrally with the bowl and arranged
substantially at right angles to the vertical axis of the bowl, a direct passageway
of approximately three-eighths of an inch in diameter formed through the said
stem into the bowl, the said passageway of a uniform diameter from the end of the
stem into the bowl arranged to prevent the accumulation of nicotine therein and
the condensation of the smoke from the tobacco in the bowl, a mouth-piece
connected to the end of said stem, a shoulder to said mouth-piece butting against
the end of said stem, a projection, said mouth-piece extending into the passageway
through said stem, a passageway through said mouth-piece in connection with the
enlarged passageway through the stem, substantially as and for the purpose
specified.
5. In a tobacco pipe the combination of the bowl, a stem formed integrally with
the bowl and arranged substantially at right angles to the vertical axis of the bowl,
a direct passageway of approximately three-eighths of an inch in diameter formed
through the said stem into the bowl, grate bars at the lower end of the bowl to
arrest the passage of the tobacco from the bowl into the passageway through the
stem, substantially as described.
6. In a tobacco pipe the combination of the bowl, a stem formed integrally with
the bowl having a direct passageway of approximately three-eighths of an inch in
diameter formed therethrough and entering the lower end of the bowl, a sleeve or

page_text: tube within the passageway at that end of the stem adjoining the bowl, an opening
through the sleeve or tube into the lower end of the bowl, and grate bars secured
across said opening, substantially as described.
Dated the 27th day of July 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.