Improvements in Tobacco Pipes.
Year: 1892

page_text: Date of Application, 22nd Oct., 1892
Complete Specification Left, 20th July, 1893-Accepted, 26th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in Tobacco Pipes.
I, THOMAS WILLIAM FREDERICK KNIGHT, of 3, Junction Houses, Allerton
Bywater, near Castleford, in the County of York, do hereby declare the nature of
this invention to be as follows:-
This invention relates to that class of pipe in which the tobacco is lit at the
lower part of the bowl the smoke ascending upwards through the tobacco and
escaping to the mouth-piece by a tube or passage communicating with the upper.
part of the bowl.
The cap or cover of the pipe is preferably fitted air-tight by either being
screwed or hinged to the top of the bowl. At the lower part of the bowl is
arranged a grating preferably of metal, placed horizontally or at any angle thereto,
which may be provided with any suitable number of perforations for a passage of
air and upon this grating the tobacco rests. The grating and the bottom of the
pipe are closed in by a lid or cover preferably hinged to the bowl, the other side
being provided with a spring catch to facilitate opening and closing. This lnl .nay
have one or more transverse openings for the admission of air and may also be
provided with a slide or slides to regulate the admission of such air to the grating;
a plug may be fitted in the stem of the pipe for removing any nicotine that may
collect therein.
When it is desired to use the pipe the top or cover is lifted and the bowl filled in
the usual manner and the cover closed again. The bottom lid or cover is then
opened and the lowest layer of tobacco lying on the grating is lit and the lid closed
and its slide or slides opened to regulate the admission of the air. The smoke
ascends through the body of the tobacco and escapes to the mouth-piece down the
tube or passage arranged at the upper part of the bowl. Any ash that falls
through the perforations of the grating will be retained in the bottom lid of the
bowl.
If desired a small spring may be arranged on the inside of the top or cover to
press down the tobacco; also one or more transverse openings may be provided for
the admission of air.
Dated this 22nd day of October 1892.
W. P. THOMPSON & BOULT,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Tobacco Pipes.
I, THOMAS WILLIAM FREDERICK KNIGHT, of 3 Junction Houses, Allerton
Bywater, near Castleford, in the County of York, 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 that class of pipe in which the tobacco is lit at the
lower part of the bowl the smoke ascending upwards through the tobacco and
escaping to the mouth-piece by a tube or passage communicating with the upper
part of the bowl.
The cap or cover of the pipe is preferably fitted air-tight by either being
screwed or hinged to the top of the bowl. At the lower part of the bowl 13.
arranged a grating preferably of metal, placed horizontally or at any angle thereto,
which may be provided with any suitable number of perforations for a passage
971

page_text: of air and upon this grating the tobacco rests. The grating and the bottom of the
pipe are closed in by a lid or cover preferably hinged to the bowl, the other side
being provided with a spring catch to facilitate opening and closing. This lid may
have one or more transverse openings for the admission of air and may also be
provided with a slide or slides to regulate the admission of the air to the grating;
a plug may be fitted in the stem of the pipe for removing any nicotine that may
collect therein.
.
When it is desired to use the pipe the top or cover is lifted and the bowl filled in
the usual manner and the cover closed again. The bottom lid or cover is then
opened and the lowest layer of tobacco lying on the grating is lit and the lid closed
and its slide or slides opened to regulate the admission of the air. The smoke
ascends through the body of the tobacco and escapes to the mouth-piece down the
tube or passage arranged at the upper part of the bowl. Any ash that falls
through the perforations of the grating will be retained in the bottom lid of the
bowl.
If desired a small spring may be arranged on the inside of the top or cover to
press down the tobacco; also one or more transverse openings may be provided for
the admission of air.
In the accompanying drawing,
Figure 1 is an exterior view of a tobacco pipe constructed according to this
invention with the bottom lid open and showing the bowl inverted.
Figure 2 is a similar view with the bowl in section and in its position for use
when smoking.
Figure 3 is a detail of the bottom closing device.
Figure 4 a detail of a top cover,
Figure 5 shows the bowl in plan, and
Figure 6 a modified form of bottom lid.
A represents the bowl of the pipe in which the tobacco is placed. B the grid or
open bottom of the bowl preferably made of metal and of any suitable construction,
and C the lid hinged or otherwise suitably connected to B so as to close up the
bottom entrance to the bowl. C however is provided with holes or openings C¹ of
any suitable shape and number covered by a slide or valve D which may be turned
or moved without opening the lid by means of the handle D'. By this means the
whole or only a portion of the area of the opening C¹ may be exposed to the
passage of air as desired. E is a cap to close in the top of the bowl which may be
screwed, hinged or merely tightly fitted on the top of the bowl. This cap may be
made in various.forms, but I find it desirable to adopt the form shown in section in
Figure 4, a lip or circular projection E is formed around the cap so as to intercept
any moisture condensed upon the cap and thus prevent it from entering the passage
to the mouth-piece. F is the channel leading from the bowl to the mouth-picce
which may be closed by a plug G at the bottom for cleaning purposes. In
Figures 1 and 2 this plug G is used for securing the grid B as well as for closing
the bottom of the passage F, but the plug may be used independently of the grid
if desired, and the grid may be pinned or otherwise secured to the bowl.
I prefer to form the bowl of the elongated or partly oval form shown in plan in
Figure 5 thus providing a suitable space for the channel F though this channel
may if desired be formed by a separate tube.
To light the pipe the cap E is removed and the bowl charged with tobacco and
the cap E replaced, then the lid C is removed or turned aside and a light applied
to the grid B, the tobacco being thus ignited at the bottom; the lid C may now be
closed, the opening C¹ being adjusted by the slide D as required. The tobacco
thus burns from the bottom, the smoke passing through the tobacco in the body of
the bowl under the cap E to the passage F, and so to the mouth of the smoker.
Figure 6 shows a modified form of the lid C with the perforations made in the
form of a cross and a corresponding cover D adapted to be turned with the
button D as a centre; this lid is hinged to the grid and secured by a clip C' at
the side.

page_text: The cap E may with advantage be formed with a double hinge E' as shown in
Figure 2 to enable it to be swung right back from the bowl.
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 :-
1. The combination and arrangement of parts constituting the complete tobacco
pipe substantially as described and illustrated in the accompanying drawings.
2. In the bowl of a tobacco pipe having an open bottom the combination with a
grid such as B of a cover such as C having a valve or slide to regulate the
admission of air.
3. The bowl of a tobacco pipe of the shape shown in plan in Figure 5 where the
wall is extended to accommodate the smoke passage.
4. In a tobacco pipe a lid such as C having a circular projection such as E¹
substantially as and for the purpose described and illustrated in the accompanying
drawings.
5. In a tobacco pipe the combination with the lid of a double hinge E'
substantially as described and illustrated in the accompanying drawings.
T. W. F. KNIGHT.
W. P. Thompson & Boult,
Agents for the Applicant.