An Improved Device for Preventing the Choking and Facilitating the Cleaning of Tobacco-pipes, which Device is also Adaptable for Arresting the Nicotine.
Year: 1893

page_text: Date of Application, 3rd Nov., 1893
Complete Specification Left, 19th Feb., 1894-Accepted, 31st Mar.,
1894
PROVISIONAL SPECIFICATION.
An Improved Device for Preventing the Choking and Facilitating
the Cleaning of Tobacco-pipes, which Device is also Adaptable
for Arresting the Nicotine.
I, HARRY ANDREWS, of 2 Frimley Villa, Edge Hill, Plumstead, in the County
of Kent, Engineer, do hereby declare the nature of this invention to be as
follows:
My invention relates to, an improved device for insertion in the bowl of tobacco-
pipes for the purpose of preventing the choking of the pipe in the operation of
filling or charging the same, and to facilitate the withdrawal or removal of the
residue after the pipe has been smoked.
My improved device is, however, also capable of being adapted for arresting or
trapping the nicotine and thus preventing its entering the mouth or obstructing the
orifice in the stem of the pipe.
-
The plugs heretofore used for preventing the choking of tobacco-pipes are very
difficult to remove after they are once inserted into their proper position in the
pipe-bowl, and by reason of the accumulation of nicotine on and below the plug,
the pipe is apt to become foul and cannot easily be cleaned.
By my invention I provide a device which serves the purpose of the ordinary
plugs in preventing the choking of the pipe in 6lling, thus making the pipe easy to
draw, and which, by reason of the facility with which it can be removed and
replaced, will also serve for withdrawing the charge of tobacco to permit of blowing
through the pipe or for other purposes, and for then replacing the charge
undisturbed, or for withdrawing the ash and waste tobacco left in the bowl after
the pipe has been smoked.
My improved device consists essentially of a metal disc or diaphragm adapted to
fit into the lower part of the bowl of a tobacco-pipe, which disc or diaphragm is
made with perforations or with notches or corrugations around its periphery to
permit the passage of the smoke, and is provided with one or more rods or stems
which extend upward above the top of the bowl to permit the ready removal and
replacement of the device.
I find it advantageous to connect one or more of the said rods or stems with the
disc or diaphragm at or near the periphery thereof so that, when the device is in
place in a pipe-bowl, the upper end of each rod or stem may be bent over the upper
edge or rim of the bowl. I make the said diaphragm either flat or dished or cup-
shaped, or in the form of an inverted cup, or of other suitable shape, as may be
found most convenient, or to suit the shape of the pipe-bowl.
To adapt my improved device for arresting or trapping the nicotine, I secure
beneath the aforesaid disc or diaphragm an annular cup or trap in which the nicotine
will be collected, whilst the smoke drawn through the openings of the said disc or
diaphragm will pass over the inner edge of the said annular cup or trap and down
through the space in the centre thereof.
I prefer to make the aforesaid disc or diaphragm of metal suitably perforated or
notched, and to form the rod or rods in one piece therewith. I may, however, use
a piece of wire-gauze suitably bent and attached to one or more rods or stems for
the purpose above specified.
1
1000
D. YOUNG & Co.,
11 & 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
An Improved Device for Preventing the Choking and Facilitating
the Cleaning of Tobacco-pipes, which Device is also Adaptable
for Arresting the Nicotine.
1, HARRY ANDREWS, of 2 Frimley Villa, Edge Hill, Plumstead, in the County
of Kent, 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:-
My invention relates to an improved device for insertion in the bowl of tobacco-
pipes for the purpose of preventing the choking of the pipe in the operation of
filling or charging the same, and to facilitate the withdrawal or removal of the
residue after the pipe has been smoked.
My improved device is, however, also capable of being adapted for arresting or
trapping the nicotine and thus preventing its entering the mouth or obstructing the
orifice in the stem of the pipe.
The plugs heretofore used for preventing the choking of tobacco-pipes are very
difficult to remove after they are once inserted into their proper position in the
pipe-bowl, and when, by reason of the accumulation of nicotine on and below the
said plug, the pipe becomes foul, it cannot easily be cleaned.
By my invention I provide a device which serves the purpose of the ordinary
plugs in preventing the choking of the pipe in filling, thus making the pipe easy to
draw, and which, by reason of the facility with which it can be removed and
replaced, will also serve for withdrawing the charge of tobacco to permit of
blowing through the pipe or for other purposes, and for then replacing the charge
undisturbed, or for withdrawing the ash and waste tobacco left in the bowl after
the pipe has been smoked.
My improved device consists essentially of a metal disc or diaphragm adapted to
fit into the lower part of the bowl of a tobacco-pipe, which disc or diaphragm is
made with perforations or with notches or corrugations around its periphery to
permit the passage of the smoke, and is provided with one or more rods or stems
which extend upward above the top of the bowl to permit the ready removal and
replacement of the device.
I prefer to combine, with this disc, an annular receptacle arranged beneath the
said disc for the purposes hereinafter specified.
In the accompanying drawing
Figure 1 is a side view, partly in section, and
Figure 2 a plan, showing one form of my improved device.
Figure 3 is a side view, partly in section, showing a slight modification of the
device illustrated in Figures 1 and 2.
Figure 4 is a side view, and
Figure 5 a sectional elevation showing another modification of my improved.
device.
Referring to Figures 1, 2 and 3, a is a metal disc which is fitted in the upper
end of an annular receptacle or trap adapted for insertion into the lower part of
the bowl of a tobacco-pipe and provided with a rod or stem c made of flexible
metal, such, for instance, as aluminium, so that, when the device is inserted in a
pipe-bowl, the said stem may be easily bent over the edge of the bowl. Per-
forations a¹ are formed in the disc a preferably in a circular series concentric with.
the opening b in the centre of the annular receptacle b, so that the smoke drawn
through the openings a¹ of the disc or diaphragm a will pass.over the inner edge of
the annular cup or trap and down through the space in the centre thereof,
while any nicotine that may condense beneath the disc a, or other substances, will
be arrested or trapped by the annular cup 6, and thus prevented from entering the

page_text: stem of the pipe. In some instances, a piece of sponge or other suitable absorbent
material is placed in the cup or trap to absorb the nicotine.
b
し
The annular cup is preferably made with a recess or shoulder in the upper end
thereof to receive the edge of the disc a. The said disc may, if desired, be made
with a small central convex part or dome.
In this form of my device, the disc a can be readily lifted out of the annular cup b
and any nicotine which has collected in the said cup can be removed, after which
the disc a can be replaced.
In the arrangement shown in Figures 1 and 2, the stem c is formed in one piece
with the cup so that the said cup and the disc a may be removed together by
means of the said steni. In the arrangement shown in Figure 3, the stem is formed
in one piece with the disc a which must be secured in the cup so that it will be
retained therein but can be removed therefrom when necessary.
I sometimes dispense with the cup or trap b, as shown in Figures 4 and 5. In
this case, the diaphragm a may be made either flat or dished or cup-shaped, as
shown, or of other suitable shape as may be found most convenient or to suit the
shape of the pipe-bowl. The edges of the said diaphragm are preferably curved
upward as shown, so that it will fit more snugly into the pipe-bowl, and greater
strength is secured where the stem e joins the disc or diaphragm a.
I sometimes make the stem with a longitudinal groove or corrugation to stiffen
the same.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The improved device constructed as above described with reference to the
accompanying drawing for the purposes above specified.
Dated this 19th day of February 1894.
.
D. YOUNG & Co.,
11 & 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.