IMPROVEMENTS IN FEEDING-BOTTLES."
Year: 1881

page_text: LETTERS PATENT to Herbert John Haddan, of Kensington, Middlesex, for an
Invention of "IMPROVEMENTS IN FEEDING-BOTTLES."
abroad by Friederich Klingspor, of Siegen, Germany.
A communication
PROVISIONAL SPECIFICATION left by the said Herbert John Haddan at the
Office of the Commissioners of Patents on the 30th September 1881.
HERBERT JOHN HADDAN, of Kensington, Middlesex.
FEEDING BOTTLES." A communication from abroad by Friederich Klingspor, of
Siegen, Germany.
"IMPROVEMENTS IN
This Invention has for its object to render the outflow of liquid more regular
by providing a suitable air inlet. It consists in closing the bottle by a cap,
preferably of thin metal, secured to the neck by a screw thread or other known
means, and perforated in the centre for the passage of the suction pipe, said cap
being lined at the inner face with a disc of india rubber or other suitable packing
material, pressed against the mouth of the bottle and provided with an air valve
which opens inside when the pressure inside the bottle falls below the atmospheric
pressure. The openings for the suction pipe and the air inlet in the cap correspond
with those of the packing ring. There may be two or more air inlets provided
with valves.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the anid Herbert John Haddan in the Great Seal Patent Office on the
28th March 1882.
HERBERT JOHN HADDAN, of Kensington, Middlesex. "IMPROVEMENTS IN
FEEDING BOTTLES." A communication from abroad by Friederich Klingspor, of
Siegen, Germany.
The usual feeding bottles have the disadvantage that the air cannot enter in
proportion to the liquid sucked out, in consequence of which the suction may
become difficult and irregular.
It is the object of the present Invention to overcome this difficulty without
unnecessary complication.
"
In the accompanying Drawings, which serve to illustrate the Invention, Figure 1
is an elevation, and Figure 2 a vertical section of an improved feeding bottle,
while Figures 3 and 4 represent details.
The neck B of the bottle has an outside screw thread, upon which the-cap-A of
any suitable material is screwed. In the Drawing the cap is represented as being
made from sheet metal, and-its-top-plate-E-is-provided with a tubular upward
projection-G-which-has-ringshaped_grooves for introducing and securing tho
suction pipe. To the mouth of the bottle, under the plate E, is secured-a-disc-of-
india rubber or similar material F, which effects a tight joint when pressed upon
the bottle by the cap A. It has a circular opening in the centre for the
introduction of the suction pipe, and at the side of this opening an incision n,
which has the important function of regulating the access of air. The incision is
so arranged as to be easily opened inside by an excess of the atmospheric pressure
over the inside pressure, without allowing the liquid to escape by its outward
pressure. The incision n may have any suitable shape, and it may be replaced by
two or more incisions, the plate E being. provided with corresponding orifices for
the inlet of air through the plate E and packing F.
In Figure 3 the packing plate F is shown separately, while Figure 4 represents
a modification with a different mode of securing the suction pipe.
CLAIM.
In feeding bottles, the combination of a cap for closing the bottle with a packing
plate of india rubber or similar material which serves to make a tight joint, and is
provided with one or more incisions n for the admission of air, substantially as
described and illustrated.
In witness whereof, I, the said Herbert John Haddan, have hereunto set my
hand and seal, this Twenty eighth day of March, A.D. 1882.
H. J. HADDAN. (L.S.)