Improvements in Tobacco Pipes.
Year: 1896

page_text: Date of Application, 14th Jan., 1896
Complete Specification Left, 20th Apr., 1896-Accepted, 2nd May, 1896
PROVISIONAL
SPECIFICATION.
Improvements in Tobacco Pipes.
I, EDMUND WALTER THURGAR, of No. 35 Lansdown Road, Notting Hill, in
the County of London, do hereby declare the nature of this invention to be as
follows:-
My invention relates to improvements in the construction of tobacco pipes,
having a three fold object, namely, firstly, to prevent any direct connection of the
channel leading from the mouthpiece with the bowl of the pipe, so that no saliva
can enter the latter; secondly, to prevent the liquid tobacco juice containing
nicotine from passing through the smoke channel to the mouth, and thirdly to
keep all saliva that may collect in the pipe separate from the tobacco juice and
nicotine.
The essential feature of my invention whereby these objects are accomplished,
consists in providing the bottom of the pipe bowl with a separable cup which is
divided by a partition into two separate compartments; the one of these com-
partments communicates firstly with the channel leading to the mouthpiece, and
secondly, by a separate channel with the second compartment, which communicates
by a separate channel with the bowl of the pipe.
Thus on applying suction in smcking, the smoke passes firstly from the bowl
into the second compartment, where any tobacco-juice and liquid nicotine passes
away therefrom and descends into the well, while the smoke together with any
nicotine that may have been volatilised by the heat, pass through the channel
connecting the two compartments into the first one, and from this the smoke
eventually passes up the channel leading to the mouth piece. Lastly, any saliva
passing down such channel falls into the first compartment and is retained there,
without mixing with the tobacco juice and nicotine in the second compartment.
The construction of the pipe can be variously modified for carrying out the
above described mode of action.
By preference I construct the cup to fit on to the bottom of the pipe bowl by a
sliding action, the partition being made to project down from the bottom surface of
the bowl, and to fit with its edge into a corresponding groove formed in the inner
surface of the cup. The channel establishing the communication between the two
compartments of the cup may either be formed through the upper part of the
partition, or it is formed in the thickness of the bowl, preferably rising up from
the one compartment to a certain height, and then descending again to the second
compartment. The passage leading from the latter into the bowl may either have
its opening at the lowest point of the latter, or the opening may be situated at a
certain distance above the bottom. In the latter case, the nicotine would
accumulate in the bottom of the bowl until it reached the said opening before it
could flow off into the compartment of the cap, so that the portion remaining at
the bottom of the bowl would be evaporated by the heat when the charge of
tobacco had burnt down to the bottom, and would pass away with the smoke.
Instead of fixing the cup by a sliding action, it may be secured to the bowl by
screwing, or by a bayonet joint; or again, it may be attached to the bowl on one
side by a hinge-joint and be secured at the other side by a suitable catch. Or a
ring may be so secured to the bowl, in which ring the cup is fitted in a removeable
manner.

page_text: Instead of forming the partition on the bottom of the bowl, it may be formed in
the cup, and fit with its upper edge into a corresponding groove in the bottom of
the bowl. The partition may either extend straight across the cup, or it may be
of a central cylindrical form, so that the one compartment is formed within
such cylinder, while the other is formed by the annular space surrounding the
central cylinder.
When the partition is formed in the cup as described, the groove formed in the
bottom of the bowl to receive it may be made of such a depth as to leave an
enclosed space above the top edge of the partition, which space may then
coustitute the channel by which the two compartments communicate with each
other, such channel being formed with side openings at opposite ends for this
purpose.
When the communication between the two compartments is effected by a rising
and falling channel in the thickness of the pipe bowl as above described. Such
channel may conveniently be made by drilling two passages at an angle to each
other, and forming at the point of their junction a hole passing through the side
of the bowl, which hole is ordinarily closed by a plug, but which can be opened
for the purpose of clearing out the two branches of the channel.
Dated this 14th day of January. 1896.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SE
CIFICATION.
Improvements in Tobacco Pipes.
I, EDMUND WALTER THURGAR, formerly of No. 35 Lansdown Road,
Notting Hill, in the County of London, but now of No. 14 Granville Street,
Brunswick Square, in the said County of London, 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 :-
My invention relates to improvements in the construction of tobacco pipes
having a three fold object namely, firstly, to prevent any direct connection of the
channel leading from the mouth piece to the bowl of the pipe, so that no saliva
can enter the latter, secondly, to prevent the liquid tobacco juice containing
nicotine from passing through the smoke channel to the mouth, and thirdly to
keep all saliva that may collect in the pipe separate from the tobacco juice and
nicotine.
The essential feature of my invention whereby these objects are accomplished,
consists in providing the bottom of the pipe bowl with a separable cup which is
divided by a cylindrical partition into an inner and an outer compartiment; the
outer one of these compartments communicates firstly with the channel leading to
the mouth piece, and secondly, by an opening in the partition with the inner
compartment which communicates by a central channel with the bowl of
the pipe.
Thus on applying suction in smoking, the smoke passes firstly from the bowl
into the inner compartment, where any tobacco juice and liquid nicotine passes
away therefrom and descends to the bottom, while the smoke together with
nicotine that may have been volatilised by the heat, pass through the opening
connecting the two compartments into the outer one, and from this the smoke
eventually passes up the channel leading to the mouth piece. Lastly, any saliva
passing down such channel falls into the first compartment and is retained there
without mixing with the tobacco juice and nicotine in the second compartment.
The above described construction of pipe is shewn in several modifications on
the accompanying drawings.

page_text: Fig. snews a vertical section of one arrangement.
Fig. 2 shews an underside plan of the pipe bowl with the cup removed, and
Fig. 3 shews a plan of the cup.
The bowl A has attached to its bottom a cup B, preferably by screwing the
latter on to the former, as shewn, hut it might be simply slid on, or it might be
attached to the bowl hy a hinge-joint on one side and be secured by a suitable
catch on the opposite side.
Within the cup B is formed an inner cup or cylindrical partition C fitting at top
into a groove in the bowl and dividing the space into an outer annular compart
ment b, and an inner one c, the two compartments being made to communicate
with each other through an opening e' in the partition C. The bottom of the
bowl A communicates with the inner compartment c of the cup, through a
channel a, which is preferably provided with a downward tubular extension a², the
object hereof being to prevent the tobacco juice that collects in the compartment o
from re-entering the bowl of the pipe in the event of the pipe being turned
upside down. The channel d of the pipe stem D opens into the outer com-
partment b of the cup, and is also provided with a tubular extension d' for the
purpose above stated.
From the above described construction it will be seen that in smoking, the
smoke will first be drawn from the bowl into the central compartment c, where it
will deposit any tobacco juice and nicotine carried with it; thence it will pass
through opening ce into compartment b, and, after passing round to the opposite
side of the partition, it will be drawn through channel d to the mouth piece.
Any saliva flowing down the channel d will, on the other hand, descend into the
bottom of compartment b, and will consequently be kept separate from the tobacco
juice in compartment c.
When necessary, the cup is removed from the bowl and cleansed. The passage d
of the stem will always be kept free from tobacco juice and solid obstructions.
In the modification shewn at Fig. 4, the bowl A has a comparatively large
threaded opening at bottom and the cylindrical partition C is made to screw with
a threaded extension into a hole in the bottom of the bowl A, such extension being
closed with the exception of the small channel a for the passage of the smoke and
tobacco juice into compartment c; this is provided with an opening at bottom
closed by a plug E, for clearing it out.
b
The compartment & communicates with c by an opening o' and also with the pipe
channel d as in the first construction. In the modification shewn at Fig. 5, the
partition C screws with its upper end into the bowl as at Fig. 4, but it is separate
from the cup B and fits with its open lower end into a circular groove in the
bottom of latter, which in this case is screwed separately on to the bowl; or it may
be simply slid on or attached by a hinge joint, as mentioned with reference to the
first construction.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A tobacco pipe consisting of a bowl to the bottom of which is attached a cup
divided by a central cylindrical partition into an inner and an outer compartment
which communicate with each other by a hole in the partition, the inner com-
partment being made to communicate through a channel with the interior of the
bowl while the outer compartment communicates with the channel of the pipe
stem.
2. In a pipe constructed as described in the first claim, forming the bottom of
the pipe bowl with a larger threaded opening into which screws a closed upper
extension of the partition of the cup, such closed extension having a small central
channel for the passage of the smoke and tobacco juice, while the bottom of the
inner compartment has a hole closed by a plug
3. A modification of the construction referred to in the second claim, wherein

page_text: the cylindrical partition is separate from the cup and fits with its lower open end
into an annular groove in the latter.
ليمم
1
11000
ABEL & IMRAY,
Agents for the Applicant.