AN IMPROVED INFANTS' FEEDING BOTTLE
Year: 1861

page_text: LETTERS PATENT to Robert Crawford Perry, of Manchester, in the
County of Lancaster, Engraver, for the Invention of "AN IMPROVED
INFANTS' FEEDING BOTTLE."
Sealed the 22nd April 1862, and dated the 29th November 1861..
PROVISIONAL SPECIFICATION left by the said Robert Crawford' Perry,
at the Office of the Commissioners of Patents, with his Petition, on the
29th November 1861..
I, ROBERT CRAWFORD PERRY, of Manchester, in the County of Lancaster,
Engraver, do hereby declare the nature of the said Invention of
IMPROVED INFANTS' FEEDING BOTTLE," to be as follows:-
My Invention consists in the application to the ordinary "feeding bottle".
of a novel form of valve for the purpose of admitting air to the interior of
the bottle, which valve is of a more simple construction than those
which have hitherto been employed for the same purpose. My improved
valve is made of caoutchouc (or other similar elastic material), and
is in the form of a short tube, one end of it being attached to the cork or
stopper of the "feeding bottle," the other end projecting a short distance into
the bottle terminates in an orifice of about the same size as the outer diameter
of the suction tube which passes through it, a perforation in the cork or stopper'
admitting air to the interior of the valve, where its pressure, caused by the
withdrawal of the liquid contents of the bottle, expands the opening at the
extremity of the valve, and admits air to the interior of the bottle; but in the.
case of the bottle being reversed or overturned, the contents of the bottle will
not pass through the valve, as the pressure of the fluid acting on the exterior,
surface of the valve tends to close it more effectually.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Robert Crawford Perry in the Great Seal Patent Office on the
15th May 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
CRAWFORD PERRY, of Manchester, in the County of Lancaster, Engraver, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of November, in the
year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Robert Crawford Perry, Her special license that I, the said Robert Craw-
ford Perry, my executors, administrators, and assigns, or such others. as I,
the said Robert Crawford Perry, 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 IMPROVED INFANTS' FEEDING BOTTLE," upon the condition, amongst others,
that I, the said Robert Crawford Perry, 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 Robert Crawford Perry, 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 and accompanying Drawings, (that is to say):
My Invention consists in the application to the ordinary "feeding bottle"
of a novel form of valve for the purpose of admitting air to the interior of the
-bottle-which-valve-is-of-a-more-simple-construction-than-those-which-have
hitherto been employed for the same purpose. My improved valve is made
of caoutchouc or other similar elastic material, and is in the form of a short tube,
one end of it being attached to the cork or stopper of the feeding bottle,
the other end projecting a short distance into the bottle, and terminating in
an orifice of about the same size as the outer diameter of the suction tube
which passes through it, a perforation in the cork or stopper admitting air to
the interior of the valve where the pressure caused by the withdrawal of
the liquid contents of the bottle expands the opening at the extremity of the

page_text: valve and admits air to the interior of the bottle; but in the case of the bottle
being reversed or overturned the contents of the bottle will not pass through
the valve as the. pressure of the fluid acting on the exterior surface of the
valve tends to close it more effectually. In order that the Invention may
be better understood and explained in detail, I have hereunto attached a sheet
of Drawings made about the full size of the articles exhibited, similar letters
of reference being marked upon corresponding parts in all the Figures. Fig.
1 represents a side view of the bottle, suction tube, and valve; Fig. 2 shews
in section a modification of the valve, in which the valve and bottle stopper
are formed of caouchouc or other material in one piece in contradistinction to
Fig. 3, wherein cork or other material is employed as a stopper to fit into the
bottle neck, and the valve is distinct from it; Fig 4 exhibits a method. of
introducing the valve into the side of the bottle when required. In Fig. 1,
a, a, is the bottle, and 6 the suction tube passing through the stopper c and
valve d, the aperture or passage e, through the stopper, admitting air to the
valve, and as the liquid is withdrawn from the bottle the pressure causes the
valve to open (as indicated by the arrows) and admit air to the interior of
the bottle to assist the flow of the contents, but to prevent any escape of liquid
by closing if the bottle be overturned. In Fig. 2, f is the valve and caou-
chouc stopper formed in one piece and fitted on to the cap g.
Having now described the nature of the said Invention, together with the
method of performing the same, I wish it to be distinctly understood that I
claim the application and use of the elastic tubular and nipple valve, arranged
and constructed as herein-before described, set forth, and fully illustrated in
the Drawings attached.
In witness whereof, I, the said Robert Crawford Perry, have hereunto
set my hand and seal, this Fourteenth day of May, in the year of our
Lord One thousand eight hundred and sixty-two.
ROBERT CRAWFORD PERRY. (L.S.)