IMPROVEMENTS IN GLASS STOPPERS, APPLICABLE TO FEEDING BOTTLES, RETORTS, AND OTHER VESSELS
Year: 1861

page_text: LETTERS PATENT to George Wilson, of the City of York; Glass
Manufacturer, for the Invention of "IMPROVEMENTS IN GLASS STOPPERS,
APPLICABLE TO FEEDING BOTTLES, RETORTS, AND OTHER VESSELS."
Sealed the 22nd August 1861, and dated the 19th March 1861.
PROVISIONAL SPECIFICATION left by the said George Wilson at tlie
Office of the Commissioners of Patents, with his Petition, on the 19th
March 1861.
I, GEORGE WILSON, of the City of York, Glass Manufacturer, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN GLASS STOPPERS,
APPLICABLE TO FEEDING BOTTLES, RETORTS, AND OTHER VESSELS," to be as
follows:-
The object of this Invention is to construct a hollow glass stopper which
without removal from its seat shall provide a passage for the discharge or
withdrawal of the contents of the vessel to which it is applied, and by
receiving a slight. axial movement in its seat shall effectually close that
passage.
When applying this Invention to feeding bottles I mould the neck of the
feeding bottle with lateral projections or internal recesses at opposite sides
of the neck, after the manner of forming the necks of the improved bottles
for which I have obtained Letters Patent bearing date November 6th, 1860
(No. 27.30). These lateral recesses in the neck of the bottle constitute, together
with the passages. formed in the stopper itself (when the recesses and.
passages are brought into coincidence with each other), ways for the discharge

page_text: or withdrawal of the contents of the bottle and the admission of air to supply
the place of the discharged contents. In this instance, however, I form
one passage only in the side of the stopper, the other being made through
the centre of the stopper. The stopper I blow hollow, but with a closed
bottom end, and with an upper end suitably shaped-to receive an artificial
teat. On the side of the stopper- near the bottom end I form a round
projection, so that in grinding the stopper to fit its seat a lateral hole will
be made in the stopper consequent on the removal of the glass forming the
projection. This hole communicates with the central passage of the stopper,
and when therefore the hole is brought into coincidence with the recess
in the neck of the bottle a discharge passage will be opened up, an air
passage being at the same time opened for the entrance of air to the bottle.
A slight turn only of the stopper is requisite to close these passages. A
knob or other indication is made on the stopper to enable the nurse to adjust
it in the dark.
When constructing the stopper for retorts or vessels which do not require
the access of air, the stopper is not channelled on its periphery, but it has merely
the lateral hole communicating with the central passage. The upper part
of the stopper must be suitably shaped to receive a coupling pipe or other
attachment for leading off the gaseous contents. of the retort to a suitable.
recentacle.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Wilson in the Great Seal Patent Office on the 17th
September 1861.
' TO ALL TO WHOM THESE PRESENTS SHALL COME; I, GEORGE
WILSON, of the City of York, Glass Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters.
Patent, bearing date the Nineteenth day of March, in the year of our
Lord One thousand eight hundred and sixty-one, in the twenty-fourth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said George Wilson, Her special license that I, the said George
Wilson, my executors, administrators, and assigns, or such others as I,
the said George Wilson, 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

page_text: '
Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN GLASS STOPPERS, APPLICABLE TO FEEDING BOTTLES, RETORTS, AND OTHER
VESSELS," upon the condition (amongst others) that I, the said George
Wilson, by an instrument in writing under my hand and seal, 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 George Wilson, do hereby declare the
nature of my 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, reference being had to the Drawing hereunto annexed, and to
the letters and figures marked thereon (that is to say) :-
This Invention consists in the adaptation to feeding bottles, retorts, and
other vessels requiring the same of a hollow glass stopper which without
removal from its seat shall provide a passage for the discharge or withdrawal
of the contents of the vessel to which it is applied, and by receiving a slight
axial movement in its seat shall effectually close that passage.
When applying this Invention to feeding bottles I mould the neck of the
feeding bottle with lateral projections or internal recesses at opposite sides of
the neck, after the manner of forming the necks. of the improved bottles for
which I obtained Letters Patent bearing date November Sixth, One thousand
eight. hundred and sixty (N° 2730). These lateral recesses in the neck
of the bottle, when brought into coincidence with their corresponding pas-
sages formed in the stoppèr itself, constitute severally ways for the discharge
or withdrawal of the contents of the bottle and the admission of air to supply
the place of the discharged contents. In this instance, however, I form one
passage only in the side of the stopper, the other being made through the
centre of the stopper.
.
'
In the accompanying Drawing, Fig. 1 shews in side view a feeding bottle
and stopper complete constructed according to this Invention; Fig. 2 is a
longitudinal section of the same; Fig. 3 is a detached view of the improved
stopper with an artificial teat (composed of vulcanized india-rubber in the
usual way) applied to the outer end thereof; Fig. 4 is a cross section of the
stopper and bottle taken at the line 1, 2, Fig. 2; Fig. 5 is a cross section
taken at 3, 4; and Fig. 6 is a sectional plan of the stopper. The stopper A;
I blow hollow, but with a closed bottom end, and with an upper end suitably
shaped to receive the artificial teat B. On the side of the stopper, near the
bottom end, I form a round hollow projection, so that in the act of grinding

page_text: '
X
b
the stopper to fit its seat in the bottle neck a, lateral hole a will be made
in the stopper, consequent on the removal of the glass forming the projection,
which hole communicates with the central passage 6 of the stopper. On the
opposite, side of the stopper to that at which the hole a is situated a
longitudinal cut c is made, to form an air passage into the bottle, and the
top end of the stopper, which is made open, is closed by the teat B. The neck
of the bottle C is moulded with internal recesses d and e, as before noticed,
when therefore the hole a is brought into coincidence with the recess d in
the neck of the bottle, a discharge passage will be opened up, an air passage
being at the same time opened (by the coincidence of the channel c and recess
e) for the entrance of air to the bottle to fill the vacuum formed by the
withdrawal of the liquid contents of the bottle.. A slight turn only of the
stopper is requisite to close both these passages.. A nob or other indication
is made on the stopper to enable the nurse to adjust the filled bottle for use
in the dark.
When constructing the stopper for retorts or vessels which do not require
the access of air, the stopper is not channelled on its periphery, but it has merely
the lateral hole communicating with the central passage.. The upper part
of the stopper must in this instance be suitably shaped to receive a coupling
pipe or other attachment for leading off the gaseous body generated in the
retort to a suitable receptacle.. By moulding hollow stoppers with a lateral
projection as described above, and relying upon the grinding away of the
superfluous glass to produce the required lateral hole, the cost and risk of
boring that hole will be avoided.
Having now set forth the nature of my Invention of "Improvements in
Glass Stoppers, applicable to Feeding Bottles,. Retorts, and other Vessels," and
explained the manner of carrying the same into effect, I wish it to be
understood that under the above in part recited Letters Patent. I claim the
construction of stoppers above described for effecting the withdrawal or
discharge of the contents of vessels suited to receive such stoppers.
In witness whereof, I, the said George Wilson, have hereunto set my
hand and seal, the Sixteenth day of September, in the year of our
Lord One thousand eight hundred and sixty-one.
GEORGE WILSON. (L.S.)