An Improved Device for Cleaning the Bowls of Tobacco-pipes.
Year: 1895

page_text: Date of Application, 3rd July, 1895
Complete Specification Left, 2nd Apr., 1896-Accepted, 9th May, 1896
PROVISIONAL SPECIFICATION.
An Improved Device for Cleaning the Bowls of Tobacco-pipes.
I, HARRY ANDREWS, of 31 New Road, Woolwich, in the County of Kent,
Engineer, do hereby declare the nature of this invention to be as follows:-
The object of my invention is to provide a simple and efficient device for cleaning
the bowls of tobacco-pipes, and one which can be manufactured at a very low cost.
For this purpose I form, by stamping from sheet-metal or in any other convenient
manner, an implement consisting of three cutting-arms or cutters each of which is
suitably shaped so that, by inserting it into the bowl of a tobacco-pipe and turning
it about its axis, any deposit in the said bowl can be easily cut away and removed,
the said arms or cutters being so situated relatively to each other that the two
cutters not in actual operation will serve as handles or levers for rotating the
third cutter.
The three cutters may, if desired, be made of equal dimensions; I find it more
advantageous, however, to make them of different dimensions so as to adapt the
implement for cleaning pipe-bowls of three different sizes.
In its simplest form my improved device consists of a flat piece of steel or other
suitable metal having the three cutting arms or cutters extending radially from the
centre and equi-distant from each other.
In some instances, I corrugate each arm or cutter so that the cutting action will
take place obliquely to the cutting edge instead of in a direction perpendicular
thereto. The corrugations will also serve for stiffening the arms where the
implement is made from thin sheet-metal.
In other instances I make each edge of the arms or cutters with alternate
recesses or notches and cutting parts, the recesses or notches of one edge of the
cutter being opposite the cutting parts of the other edge thereof, so that each edge
of the cutter is active throughout only about one-half of its length. Each cutter
may, if desired, be bent or curved in transverse section at one or both edges thereof
to facilitate the removal of the deposit from the pipe-bowl thereby.
Dated the 3rd day of July 1895.
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.
An Improved Device for Cleaning the 'Bowls of Tobacco-pipes.
I, HARRY ANDREWS, of 31 New Road, Woolwich, 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 is to provide a simple and efficient device for cleaning the bowls
of tobacco-pipes and one which can be manufactured at a very low cost.
For this purpose I form, by stamping from sheet-metal or in any other convenient
manner, an implement consisting of three cutting-arms or cutters each of which is
ID 073

page_text: suitably shaped so that, by inserting it into the bowl of a tobacco-pipe and turning
it about its axis, any deposit in the said bowl can be easily cut away and removed,
the said arms or cutters being so situated relatively to each other that the two
cutters not in actual operation, will serve as handles or levers for rotating the
third cutter.
i
The three cutters may, if desired, be made of equal dimensions I find it more
advantageous, however, to make them of different dimensions so as to adapt the
implement for cleaning pipe-bowls of three different sizes.
In its simplest form my improved device consists of a flat piece of steel or other
suitable metal having the three cutting arms or cutters extending radially from the
centre and equi-distant from each other.
In some instances, I corrugate each arm or cutter so that the cutting action will
take place obliquely to the cutting edge instead of in a direction perpendicular
thereto. The corrugations will also serve for stiffening the arms where the
implement is made from thin sheet-metal.
In other instances I make each edge of the arms or cutters with alternate recesses
or notches and cutting parts, the recesses or notches of one edge of the cutter being
opposite the cutting parts of the other edge thereof, so that each edge of the cutter
is active throughout ouly about one-half of its length.
Each cutter may, if desired, be bent or curved in transverse section at one or
both edges thereof to facilitate the removal of the deposit from the pipe-bowl
thereby.
In the accompanying drawing
Fig. 1 shows my device in its simplest form and is shown inside a tobacco pipe
ready for operation.
Fig. 2 shows a modification or skeleton form of my device.
In Fig. 3 a modified form of cutter or cutting arm is shown at C.
Referring to Figs. 1 and 2 the arms or cutters a al a² are each designed to scrape
or cut away the deposit from the pipe-bowl. The outstanding cutters or arms a a¹
in Fig. 1 form the handles or levers to operatate the cutting arm a², each cutter or
arm is preferably made of a different size so as to clean bowls of different internal
dimensions.
The cutting arm C as shown in Fig. 3. is designed to lessen the tendency of
splitting the bowl and to facilitate the scraping thereof. When the alternate
cutting edges e₁₁₁ of the cutting arm C are scraping parts of the surface at any one
particular part of the bowl, the opposite & alternate cutting edges e¹ e¹ e' scrape
the remaining parts thereof.
My device may be made by stamping, casting, or bending.
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 for cleaning the bowls of tobacco pipes consisting of three
united arms or cutters as and for the purposes substantially herein described, and
shown in Figs. 1 and 2 of the accompanying drawing.
In a device for cleaning the bowls of tobacco pipes the construction of a cutter
or cutters formed with an alternate cutting edge or edges substantially as herein-
HARRY ANDREWS..