An Improved Implement or Appliance for Cleaning the Interior of Tobacco-pipe Bowls.
Year: 1889

page_text: Date of Application, 22nd Mar., 1889
Complete Specification Left, 23rd Dec., 1889-Accepted, 22nd Feb.,
1890
PROVISIONAL SPECIFICATION.
An Improved Implement or Appliance for Cleaning the Interior of
Tobacco-pipe Bowls.
I, ENOCH AYKROYD, of 11, Aldermanbury, Bradford in the County of York, Agent
do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved implement or appliance for scraping, cutting
out or removing the superfluous scale or incrustation which accumulates by the com-
bustion of tobacco in tobacco pipe bowls, particularly in wooden pipes, and its object
is to provide a simple and compact instrument adapted to readily remove such
accumulations or deposits without injuring the bowl and leaving a thin coating of said
scale within the bowl which preserves the pipe.
The said implement consists of a tee shaped piece stamped from sheet steel and
suitably hardened and tempered. The cross piece of the tee forming a thumb piece or
handle affording convenient purchase for using the implement which is applied by
introducing the shank of the instrument or tec, formed as hereinafter described, and
rotating it by means of the said cross piece. .
The edges of said shank taper more or less towards the end which is shaped to suit
or fit the bottom of the bowl and the general form of the shank is similar to a
diametrical or longitudinal section through the centre of the bowl so that when placed
inside the bowl it approximately fits, reaching diametrically across. The edges of said
shank are bevelled from one side so as to form sharp scrapers adapted to scrape in the
same direction and remove said accumulations when rotated within the bowl.
The bottom of said shank is preferably not bevelled all round so as to form a stop
and prevent the bowl being damaged by cutting too deep.
The said scraping edges may be made keener and more in the form of true cutting
edges by bending such edges away from the bevelled sides thus forming a cutting lip
along each edge.
The form of the thumb or cross piece of said instrument may be modified as
desired.
01
1000
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
An Improved Implement or Appliance for Cleaning the Interior of
Tobacco-pipe Bowls.
I, ENOCH AYKROYD, of 11, Aldermanbury, Bradford in the County of York, Agent,
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 an improved implement or appliance for scraping, cutting
out or removing the superfluous scale or incrustation which accumulates by the com-
bustion of tobacco in tobacco pipe bowls, particularly in wooden pipes, and its object
is to provide a simple and compact instrument adapted to readily remove such
accumulations or deposits without injuring the bowl and leaving a thin coating of
said scale within the bowl which preserves the pipe.
The said impliment consists of a tec shape piece stamped froin sheet steel and
suitably hardened or tempered. The cross piece of the tee forming a thumb piece or
bandle affording convenient purchase for using the implement which is applied by

page_text: introducing the shank of the instrument or tee, formed as hereinafter described, and
rotating it by means of the said cross piece.
The edges of said shank taper more or less towards the end which is shaped to suit
or fit the bottom of the bowl and the general form of the shank is similar to a
diametrical or a longitudinal section through the centre of the bowl so that when
placed inside the bowl it approximately fits, reaching diametrically across.
of said shank are bevelled from one side so as to form sharp scrapers adapted to
The edges
scrape in the same direction and remove said accumulations when rotated within
the bowl.
The bottom of said shank is preferably not bevelled all round so as to form a stop
and prevent the bowl being damaged by cutting too deep.
In order to fully illustrate my invention reference is made to the accompanying
sheet of drawings in which: Figure 1, is an elevation of my improved appliance.
Figure 2, is a side view of the same and Figure 3, is a transverse section across the
broken line a, b in the former figure.
The sides A, A of the taper shank B are bevelled from opposite sides at a suitable
angle to form sharp scraping edges C, C, and the bottom D of such shank is rounded
off as shown. The top or thumb piece E of the appliance is preferably made of the
shape shown by the full lines figure 1 as that form is compact and may be readily
stamped with little waste from sheet metal. But it is obvious that the form of such
thumb piece may be modified in any way as for instance increasing its size to that
represented by the broken lines figure 1.
The said scraping edges may be made keener and more in the form of true cutting
edges by bending such edges away from the bevelled sides thus forming a cutting
lip along each edge, but I find the plain edge previously mentioned quite efficient.
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 what I claim is:
An instrument or appliance for scraping or cleaning the interior of tobacco pipe
bowls formed of sheet metal and having a shank the shape of a diametrical section of
the interior of the howl and formed with scraping or cutting edges along each side,
substantially as herein shown and described.
Dated this 20th day of December 1889.
DRACUP & NOWELL,-
Bradford, Agents.