Improvements in Tobacco Pipes.
Year: 1895

page_text: Date of Application, 21st Sept., 1895
Complete Specification Left, 20th June, 1896-Accepted, 1st Aug., 1896
Improvements in Tobacco Pipes.
I THOMAS ASHMORE of 85 Westmorland Place, Liverpool in the County of
Lancaster, Engineer do hereby declare the nature of this invention to be as
follows:-
This invention has for its object a tobacco pipe that shall be easily cleaned
internally in its various parts, and which is provided with simple traps for saliva,
nicotine etc. It also may be cheaply produced and will be particularly hygienic
in use.
A pipe constructed according to this invention does not differ in appearance from
an ordinary one save that its stem is preferably somewhat thicker and may be
parallel the whole of its length. The stem is turned out or bored internally with
a rather large bore which extends parallel from slightly beyond the opening or
openings from the bowl to where the mouthpiece is inserted where it may be
slightly tapered or threaded to secure a tight fit for the latter. The mouthpiece may
be of usual form externally and carries at its inner end a thin rod which lies
approximately in the centre of the bore of the stem and bears a number (preferably
three) of discs or pistons which fit the bore and divide it into distinct compart-
ments or chambers. One piston occupies the space beyond the bowl opening at
one end of the stem the other two divide the bore transversely into three portions.
Each piston except the terminal one is provided on or near its upper edge, with
a smoke port and the passage through the mouth-piece also opens into the bore
near its upper edge.
It will be evident that when the pipe is in use any saliva flowing into the bore
is retained in the first chamber by the first piston; liquid or ashes coming from
the bowl into the stem must remain in the last chamber. The middle chamber acts
as an additional check to the other two.
from the stem the pistons are also pulled out and sweep said bore and carry away
When the mouth-piece is withdrawn
all deposits. The various parts when separated may easily be cleaned by a piece
of rag or paper.
The tobacco being kept dry as above described may be burnt low in the bowl
without inconvenience. The mouth-piece, rod, & pistons may be made from a
single piece of vulcanite or other material.
I do not limit my self to the details specified.
Dated this 20th day of Santamba 104
COMPLETE SPECIFICATION.
Improvements in Tobacco Pipes.
1, THOMAS ASHMORE of 85 Westmoreland Place, Liverpool in the County of
Lancaster Engineer 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 has for its object a tobacco pipe that shall be capable of being
D
1
1, THOMAS ASHMORE of 85 Westmoreland Place, Liverpool in the County of
Lancaster Engineer 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 has for its object a tobacco pipe that shall be capable of being
D21

page_text: easily cleaned internally in its various parts and which is provided with simple and
efficient traps for saliva, nicotine etc. It may also be cheaply produced and, in
practice is found cool pleasant and hygienic to smoke.
Referring to the drawings
Fig. 1 is a longitudinal section of a pipe constructed according to my invention.
Fig. 2 is a transverse section as on line xx of Fig. 1.
Fig. 3 is an elevation of the mouthpiece and its attachments.
Fig. 4 is a section on line y y of Fig. 3.
Fig. 5 is a view of a detail hereinafter described.
As may be noticed a pipe constructed according to this invention does not
differ in appearance from an ordinary one save that its stem A is preferably
somewhat thicker and may be parallel the whole of its length. The stem is turned
out or bored internally with a rather large bore B which extends parallel from
slightly beyond the opening G (or openings) from the bowl C to where the mouth-
piece D is inserted, where it may be slightly tapered or threaded if desired to
secure a tight fit for the latter. The mouthpiece D may be of usual form externally
and carries at its inner end a thin rod Di which lies approximately in the centre
of the bore B of the stem A and bears a number (preferably three) of discs or
pistons E, E, E, which fit the bore and divide it into distinct compartiments or
chambers F, F, F. One piston E occupies the space beyond the bowl opening G
at one end of the stem A; the other two E E divide the bore B transversely
into three chambers. Each piston except the terminal one E is provided on or
near its upper edge with a sinoke port e which may be formed by flattening the
top of said pistons so as to leave a small space between them and the top of the
bore. The passage d through the mouthpiece also opens into the bore near its
upper edge.
It will be evident that when the pipe is in use any saliva flowing into the bore
is retained in the first chamber F by the first piston E; liquid or asbes coming
from the bowl into the bore B must remain in the last chamber F, being prevented
from flowing along the bore by the piston E'.
The middle chamber F1 lying between the two pistons E' E' serves as a check
to the other two chambers F F in the event of leakage from either, and I find
in practice that the provision of three chambers F F F is quite sufficient to
'effectually serve the objects in view.
It will be seen that the passage d through the mouthpiece D opens into the
bore near the top edge so that even should a considerable amount of saliva etc.
lodge in the first chamber F the smoker is still able to create a through draft
without inconvenience therefrom.
In order to avoid any liability to replacing the mouthpiece with the opening d
below instead of above I prefer to provide means to insure that it shall be inserted
in the correct position.
In the example shown a pin or stud G' is fixed in a hole in the mouthpiece
(see Figs. 1 & 4) and this when the latter is in place rests in a slot H cut or
formed in the end of the stem A as clearly shown in Fig. 5 which is a reversed
plan view of such portion of the pipe as is necessary to show this device. Other
means such as a shoulder and a corresponding recess formed on the adjacent ends
of the mouthpiece and stem may be employed but I prefer the arrangement
shown as the thickness of the material at the lower side of the mouthpiece caused
by reason of the upward slant of the passage therein offers ample material in
which to affix pin G'. I consider that the providing of means to prevent the
mouthpiece and stem being placed together in a wrong position is one important
part of my invention.
4
I wish it to be clearly understood that I am not confined to the exact details
of construction shown. For instance instead of having but one orifice G leading
from the bowl C to the bore B I may make several. I also do not limit myself
to three pistons E E' E' though I have shown the manner that I prefer for carrying
the invention into effect.

page_text: When it is desired to clean the pipe, the mouthpiece D is pulled or withdrawn
from the stem. The terminal piston E fitting the bore B all round sweeps it out
and serves to withdraw all the superfluous moisture and accumulations from said
bore. It is merely necessary to wipe the various parts exposed by said withdrawal
and it may be to clear the bowl orifice G and mouthpiece and to then reassemble the
pieces as before.
I have found in actual use that this pipe substantiates all the advantages herein-
before mentioned and that the extent of surface over which the smoke passes before
it reaches the mouth materially tends to cool it and to condense the impurities
therefrom. The bowl and stem may be made of wood or other suitable material
while the mouthpiece rod and pistons are very satisfactory if made of vulcanite. A
thin band of metal may surround the end of the stem as is commonly done to prevent
splitting.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. A tobacco pipe having a and a stem attached thereto, said stem having a bore
approximately parallel for its whole length, in combination with a removable mouth-
piece having an inwardly projecting rod which carries a series of discs or pistons
which serve to subdivide the said bore into a number of traps or chambers,
suitable smoke ports being provided where necessary substantially as described &
shown.
2. In a tobacco pipe such as described in which a series of pistons are employed
to subdivide the bore the combination and arrangement of parts whereby the
terminal piston when in place lies beyond the opening from the bowl and serves
during its withdrawal to sweep or clean the whole length of said bore substantially
as described.
3. In a pipe such as described the mouthpiece D whose passage opens near the
upper edge of one of the chambers, substantially as and for the purposes set forth.
4. In a tobacco pipe, a pin G₁ affixed to the mouthpiece and adapted to enter
a slot in the stem in such manner that their proper relative positions are assured
when placed together, substantially as described.
Dated this 19th day of June 1896.
CHARLES
COVENTRY,
Patent Expert, Applicant's Agent.