IMPROVEMENTS IN EARTHENWARE JARS AND BOTTLES
Year: 1859

page_text: LETTERS PATENT to Henry Doulton, of Lambeth, for the Invention of
"IMPROVEMENTS IN EARTHENWARE JARS AND BOTTLES."
PROVISIONAL SPECIFICATION left by the said Henry Doulton at the
Office of the Commissioners of Patents, with his Petition, on the 23rd
June 1859.
I, HENRY DOULTON, of Lambeth, do hereby declare the nature of the
Invention for "IMPROVEMENTS IN EARTHENWARE JARS AND BOTTLES," to be as
follows:-
This Invention has for its object improvements in earthenware jars and
bottles. For these purposes the interior of the neck of each earthenware jar
and bottle is made with projections at intervals apart, and at or near the upper
surface thereof, and it is preferred that these projections should be slightly
inclined on the under surfaces. The cover or stopper of earthenware is formed
to fit over or cover the upper surface of the neck, and on its under side it is
made with a cylindrical projection, which descends into the neck, and there
are side projections thereon suitably formed to descend below the projections
on the interior of the neck, and with inclines on their upper surfaces, so that
when they come under the projections in the neck, and the cover is turned
partly round, the cover will be drawn down tightly and cause it to compress a

page_text: ring of india-rubber (by preference vulcanized india-rubber), or other soft or
elastic collar or ring applied under the cover, or around the cylindrical pro-
jection formed on the under side of the cover, in such manner that the soft or
elastic ring is pressed between the upper part of the neck and the under side
of the cover.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Doulton in the Great Scal Patent Office on the
22nd December 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
DOULTON, of Lambeth, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of June, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-third year of Iller
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Henry Doulton, Her special licence that I, the said Henry Doulton,
my executors, administrators, and assigns, or such others as I, the said
Henry Doulton, 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 "IMPROVEMENTS IN
EARTHENWARE JARS AND BOTTLES," upon the condition (amongst others)
that I, the said Henry Doulton, 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 Inven-
tion, 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 Henry Doulton, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the fol-
lowing statement thereof, that is to say :-
This Invention has for its object improvements in earthenware jars and
bottles. For these purposes the interior of the neck of each earthenware jar
and bottle is made with projections at intervals apart, and at or near the upper
surface thereof, and it is preferred that these projections should be slightly

page_text: inclined on the under surfaces. The cover or stopper of earthenware is formed
to fit over or cover the upper surface of the neck, and on its under side it is
made with a cylindrical projection which descends into the neck, and there are
side projections thereon suitably formed to descend below the projections on
the interior of the neck, and with inclines on their upper surfaces, so that
when they come under the projections in the neck, and the cover is turned
partly round, the cover will be drawn down tightly, and caused to compress a
ring of india-rubber (by preference, vulcanized india-rubber), or other soft or
elastic collar or ring applied under the cover or around the cylindrical pro-
Ojection formed on the under side of the cover, in such manner that the soft or
elastic ring is pressed between the upper part of the neck and the under side
of the cover.
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 DRAWINGS.
Figure 1 shews an earthenware jar manufactured according to my Inven-
tion; Figure 2 shews an edge view of the earthenware cover separated from
the jar Figure 3 is a plan of the jar showing the internal projections, by
which, in combination with the external projections on the cover, shewn in
section in the same Figure, the cover is held securely in its place over the
mouth of the jar when applied thereto; Figure 4 is a vertical section of the
jar and its cover fixed over the neck or mouth thereof; Figure 5 shews an
exterior view in plan of the cover; Figure 6 shews a vertical section of the
cover; and Figure 7 shews an interior view of the cover. In each of these
Figures the same letters are used to indicate the same parts. And I would
state that the form or shape of the jar may be varied.
In making earthenware jars according to my Invention, projections a, a,
either horizontal or slightly inclined on the under sides, are produced on the
interior of the neck or mouth, there being spaces between the projections a, a,
to admit of projections b, b, which are formed when making the earthenware
cover on the cylindrical part c of such cover, which is formed to enter the
neck or mouth of the jar. The cover is also formed suitably for receiving a
ring of vulcanized india-rubber or other suitable elastic matter d, as is shown.
The projections 6 on the cover are made slightly inclined on their upper
surfaces to correspond with the incline on the under surfaces of the projections
a, a, interior of the neck of the jar. In like manner the necks or mouths of
earthenware bottles are manufactured with covers and means of holding the
covers by interior projections, as above described. By these combined means,

page_text: when the cover is placed over the neck or mouth of the jar, by turning
the one or other slightly round, the cover is drawn into the neck or mouth,
and the ring of vulcanized india-rubber or of other elastic material is com-
pressed, and a close joint is produced.
What I claim is, the manufacture of earthenware jars and bottles as herein
described.
In witness whereof, I, the said Henry Doulton, have hereunto set my
hand and seal, this Twentieth day of December, in the year of our
Lord One thousand eight hundred and fifty-nine.
HENRY DOULTON. (L.S.)