Improvements in Tobacco-pipes.
Year: 1888

page_text: Improvements in Tobacco-pipes.
I, PERCY DAVID HEDDERWICK of No. 10 Heathfield Road, Acton in the County
of Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
According to my invention, I provide a sinall lateral hole for access of air into the
tube of the pipe, which has the effect of diluting and cooling the smoke before it
reaches the mouth, and also of reducing the draught through the bowl and con-
sequently rendering the combustion more slow. The hole may be fitted with a
When such a
regulating plug by which the amount of air admitted may be varied.
plug is used, I fit it in a short tube or socket branching off from the main tube, and,
when this branch is on the underside it forms a cavity in which condensed products
are collected, and from which they may from time to time be discharged.
By making this branch project at an angle such as 45° from the main tube and of
such a size that it fits both the plug and the nozzle of the bowl, these may be
transposed, and thus the bowl of the pipe may be set either perpendicularly to the
tube or at an inclination to it.
Dated this 22nd day of June 1888.
ABEL & IMRAY,
Agents for the Applicant.

page_text: I, PERCY DAVID HEDDERWICK of No. 10 Heathfield Road, Acton in the County of
Middlesex, 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 jn
and by the following statement :-
According to my invention, I provide a small lateral hole for access of air into the
tube of the pipe, which has the effect of diluting and cooling the smoke before it
reaches the mouth, and also of reducing the draught through the bowl and con-
sequently rendering the combustion more slow. The hole may be fitted with a
regulating plug by which the amount of air admitted may be varied. When such a
plug is used, I fit it into a short tube or socket branching off from the main tube,
and, when this branch is on the underside it forms a cavity in which condensed
products are collected, and from which they may from time to time be discharged.
By making this branch project at an angle, such as 45°, from the main tube and of
such a size that it fits both the plug and the nozzle of the bowl, these may be
transposed, and thus the bowl of the pipe may be set either perpendicularly to the
tube or at an inclination to it.
Fig. 1 of the accompanying drawings is a section of the bowl and part of the stem
of a clay or meerschaum pipe with small hole a according to my invention for.
admitting air. Fig. 2 is a part section part elevation shewing the air hole a formed
in a screwed plug made with an inwardly projecting nipple b. Condensed products
can collect in the annular cavity surrounding this nipple, and these can from time to
time be cleared out by unscrewing the plug. As shewn by Fig. 3, the hole a may be
bored laterally into the plug so that, by screwing the plug more or less in, the air
passage can be more or less reduced. Fig. 4 shews how in a pipe with a plug hole
made at an angle to the stem as shewn in Fig. 3, the plug and the bowl may be
transposed. As in this case the stem would be inclined downwards to the plug, such
condensed matter as collects around the nipple 6 might be run off by turning round
the inner conical plug so as to bring a lateral hole c into coincidence with a notch cut
inside the outer screwed plug.
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. Constructing a tobacco pipe with a small hole admitting air to the tube,
substantially as and for the purpose set forth.
2. Forming the air inlet above referred to in a screwed plug having a nipple
around which condensed matter can collect, substantially as described.
Dated this 19th day of March 1889.
ABEL & IMRAY,
Agents for the Applicant.