AN IMPROVE- MENT IN PREPARING AND PACKING TOOTH POWDER
Year: 1857

page_text: LETTERS PATENT to Arthur Dunn, of Dalston, in the County of Mid-
dlesex, Fancy Soap Manufacturer, for the Invention of "AN IMPROVE-
MENT IN PREPARING AND PACKING TOOTH POWDER."
Sealed the 24th November 1857, and dated the 10th June 1857.
PROVISIONAL SPECIFICATION left by the said Arthur Dunn at the
Office of the Commissioners of Patents, with his Petition, on the
10th June 1857.
I, ARTHUR DUNN, of Dalston, in the County of Middlesex, Fancy Soap.
Manufacturer, do hereby declare the nature of the Invention for "AN IN-
PROVEMENT IN PREPARING AND PACKING TOOTH POWDER," to be as follows:-
This Invention has for its object an improvement in preparing and packing.
tooth powder. For this purpose any preparation, or mixture of materials suit.
able to be used as a tooth powder, is subjected to pressure in moulds, in the.
dry or very slightly moistened state, in order to mould the powder into forms,.
in place of the powder being packed in boxes, as heretofore; and such moulded.
and compressed forms are then wrapped or enveloped in tinfoil, or other
suitable wrappers which will admit of being torn or moved away by degrees,.
so as to leave a portion of the end of the moulded and compressed mass
uncovered, in such manner that it may be rubbed on the surface of a tooth
brush, or have the brush rubbed thereon; by which preparation and mode of

page_text: packing tooth powder, the same will retain its perfume and flavor, and also
the form of a moulded mass, and yet admit of a quantity being readily removed
by a brush from time to time from the uncovered surface.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Arthur Dunn in the Great Seal Patent Office on the
10th December 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ARTHUR
DUNN, of Dalston, in the County of Middlesex, Fancy Soap Manufacturer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of June, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twentieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Arthur Dunn, Her special licence that I, the said Arthur Dunn, my
executors, administrators, and assigns, or such others as I, the said Arthur
Dunn, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "AN IMPROVEMENT IN
PREPARING AND PACKING TOOTH POWDER," upon the condition (amongst others)
that I, the said Arthur Dunn, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same
to be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Arthur Dunn, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
This Invention has for its object an improvement in preparing and packing
tooth powder. For this purpose any preparation, or mixture of materials
suitable to be used as a tooth powder, is subjected to pressure in moulds, in
the dry or very slightly moistened state, in order to mould the powder into
forms, in place of the powder being packed in boxes, as heretofore; and such

page_text: moulded and compressed forms are then wrapped or enveloped in tinfoil, or
other suitable wrappers which will admit of being torn or moved away by
degrees, so as to leave a portion of the end of the moulded and compressed
mass uncovered, in such manner that it may be rubbed on the surface of a
tooth brush, or have the brush rubbed thereon; by which preparation and
mode of packing tooth powder, the same will retain its perfume and flavor,
and also the form of a moulded mass, and yet admit of a quantity being
readily removed by a brush from time to time from the uncovered surface.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figure 1 shews the elevation of a metal mould such as used by me in
carrying out my Invention; Figure 2 is a plan of the mould; Figure 3 shews a
vertical section of the same; Figure 4 shews the ram, and Figure 5 the filling
piece introduced into at the bottom of the mould.
The making and mixing of the various descriptions of tooth powder now
and heretofore used, and others which may be hereafter prepared, not con-
stituting any part of my Invention, it will not be necessary to describe the
same here.
My Invention, as above explained, consists in subjecting tooth powders to
pressure in moulds, and covering the moulded products in tinfoil or suitable
coverings which can be moved progressively as the end of the moulded article
is worn away by rubbing it on a tooth brush.
I would state that, as some preparations of tooth powder, such as those
containing charcoal and others, do not readily cohere when subjected to
pressure in moulds, in such cases I find it desirable to moisten them slightly...
with a small quantity of sweet oil or honey, or. other material; and when using
such matters with tooth powder, I use either at the rate of about four fluid
ounces to eight pounds of the powder. I prefer not to use water for such.
moistening, as the pressed product is liable to shrink and crack; otherwise
water may be used. The tooth powder being prepared, and the filling piece a
introduced into the bottom of the mould, the same is to be filled by a funnel
or other convenient instrument, and I slightly ram down the powder with a
wood rammer, whilst the funnel is in its place. I then remove the funnel and
wood rammer, and place the solid metal plug on the top of the tooth powder
and slightly strike the rounded knob on the top of the ram or plug with a
mallet (loaded with lead on the striking end) four or five times, and lastly give
four or five good heavy blows, until the tooth powder contained in the mould
"

page_text: is sufficiently compressed. I then shift the mould on the iron plate d until
the moveable plug or filling piece a, at the bottom of the mould, comes over
the well or hole sunk on one side of such iron plate. I then slack the screw
which binds the parts of the mould together, and gently strike the rounded
top of the top ram until it slightly descends in the mould, pushing with it the
moulded tooth powder; I then bring the mould upon the flat surface of the
iron plate, remove the ram or plunger, throw the band b and screw c back,
and gently strike the top surface of the mould, until the lower moveable filling
piece or plug a again becomes flush with the iron plate, the object being to
free the compressed tooth powder from the sides of the mould. I then turn
the mould on its side, press up the moveable plug a with the right hand,
holding the left hand to catch the compressed powder as it falls out of the
mould. The moulded tooth powder is then ready to be enveloped in tinfoil
or other suitable material, which is readily performed by spreading the tin-
foil (or other material, applying paste on one edge) on a sheet of glass, and
then rolling the moulded tooth powder therein, closing the ends of the tinfoil
over the ends of the moulded powder when rolled up in such tinfoil. After
cach time of using the mould, I clean it out with a wet cloth, wipe it dry, screw.
it up, and it is ready again for use.
Having thus described the nature of my said Invention, and the manner of
performing the same, I would have it understood that I do not confine
myself to the precise details, and the form of the mould used in carrying out
my Invention may be varied; but what I claim is, the subjecting tooth powder
to pressure in moulds, so that the same may be moulded into form, and.
coating or covering the same with tinfoil or other suitable covering, which
will admit of being readily removed as the moulded tooth powder is removed.
by being rubbed on a tooth brush.
In witness whereof, I, the said Arthur Dunn, have hereunto set my
hand and seal, this Tenth day of December, in the year of our
Lord One thousand eight hundred and. fifty-seven.
ARTHUR DUNN. (L.s.).
Witness,
S. CARPMAEL.