Year: 1897

page_text: Date of Application, 5th June, 1897
Complete Specification Left, 26th July, 1897-Accepted, 28th Aug.,
1897
I, ALEXANDER DUKE, of Alconbury, Cheltenham, in the County of Gloucestershire,
Physician and Surgeon, do hereby declare the nature of this invention to be as
follows:-
My invention relates to improvements in tobacco pipes, which consists of a tobacco
pipe with an air ball valve in the vase or bowl or in any other part of the said pipe.
The valve may be constructed of any suitable shape and fixed in such a manner that
the same may be hidden from view or otherwise, made of glass, metal or any other
suitable substance.
The improvement in my invention is the access of air for insuring the combustion
of the tobacco where no nicotin is formed. The tobacco is consumed to the last grain,
any residium (not used) dry and clean.
Ball valve admits air while smoking, the said ball moving up and down.
J. P. BAYLY,
18 Fulham Place, W., Agent for the Applicant.
I, ALEXANDER DUKE, of Alconbury, Cheltenham, in the County of Gloucestershire,
Physician and Surgeon, 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 tobacco pipes, which consists of a
tobacco pipe with an air ball valve in the vase or bowl or in any other part of the
Baid pipe.
The valve may be constructed of any suitable shape and fixed in such a manner
that the same may be hidden from view or otherwise, made of glass, metal or any
other suitable substance.
And in order that my invention may be thoroughly understood, I now proceed to
describe the accompanying drawing thereof, reference being had to letters and figures
marked thereon.
Fig. 1, is a section of the bowl and valve, and other parts of the tobacco pipe.
Fig. 2, is an elevation of the valve.

page_text: In carrying my invention into practice I construct a valve a of a piece of glass tube
the said tube having the bottom end opening.c reduced or pressed inwards, I then
insert a loose glass ball b and close or reduce the top opening c¹. The glass ball b fits
loosely inside the valve a and each end c and c¹ being open permits the fresh air to
pass through into a pipe fitted with the said valve.
I fix the valve a in the bottom of the vase or bowl d of a pipe as in Fig. 1.
The improvement in my invention is the access of air for insuring the combustion
of the tobacco where no nicotin is formed. The tobacco is consumed to the last grain,
any residium (not used) dry and clean.
Ball valve admits air while smoking, the said ball moving up and down.
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. In tobacco pipes, the combination of the ball valve and the vase or bowl of
the pipe, substantially as herein described and according to the accompanying
drawing.
2. In a valve for tobacco pipes, the combination of the tube and ball with the
openings at the top and the bottom, substantially as herein described and according
to the accompanying drawing.
3. Tobacco pipes and valves constructed in the manner described in the above
specification, for the purpose specified.
Dated this 28th day of July 1897