Year: 1887

page_text: I ALFRED WILESMITH of 1 Priory Mount, Church Street Malvern in the county
of Worcester, Gentleman do hereby declare the nature of this invention to be
as follows:-
This invention relates to the application of an improved construction of valve to the
plugs or stoppers of feeding bottles for the purpose of admitting air on the suction of
the tube.
I perforate the plug or stopper and on its underside 1 pivot a metallic stem or arm
carrying a plate or clack which I may line or pad on its upper side with leather,
rubber or like soft material to abut on the hole in the plug or stopper. I keep this
plate or clack normally shut on the hole aforesaid by a spring which may be of the flat,
spiral or other suitable variety.
The act of suction causes the valve to open and permits the milk or food to rise in the
tube in the usual way.
30
1
1
1000
POPPLEWELL, COLTON & Co.,
Agents for the Applicant.

page_text: I ALFRED WILESMITH, of 1, Priory Mount, Church Street, Malvern, in the County
of Worcester, Gentleman, do hereby declare the nature of this invention, and in what
manner the same is to be performed, to be particularly described, and ascertained in
and by the following statement :-
This Invention relates to the application of an improved construction of valve to the
plugs or stoppers of feeding bottles, for the purpose of admitting air, on the suction of
the tube.
I perforate the plug or stopper, and on its underside 1 pivot a metallic stem or arm
carrying a plate or clack, which I may line or pad on its upper side, or surface, with
leather rubber or like soft material, to abut on the hole in the plug or stopper.
I keep this plate or clack normally shut on the hole aforesaid, by a spring, which
may be of the flat spiral or other suitable variety.
Referring to the accompanying drawings and to the figures and letters of reference
marked thereon.
Figure 1 is a plan of the bottom of a plug or stopper fitted with my improved valve
for use in feeding bottles, and
Figure 2 is a vertical section of a part of a bottle and its plug or stopper shewing the
valve in side elevation.
A is the plug or stopper screwing into the screwed neck of the bottle B, or a plain
neck and plain stopper may be used.
C is the air inlet in the plug or stopper or more that one could be used.
D is the plate or clack (which may be lined with rubber, leather, or like soft
material E) mounted on the arm or stem F. As shewn the arm or stem is continued
to form a spring G, or it can be attached to a spring.
The end of the spring is shewn attached to the plug or stopper at H by being
attached to a plate screwed to the same, or otherwise secured. I is the suction tube
as usual. The act of suction through the tube I causes the valve D to open from the
end of the air inlet C admitting air from its other end outside the plug or stopper
into the interior of the bottle and thus the milk or food rises in the tube I in the
ordinary way.
On suction ceasing the valve D immediatly closes the air inlet C in the plug or
stopper.
I am well aware that air inlet valves adapted to the plugs or stoppers of feeding
bottles are not novel, but not as I believe constructed as in my invention.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
In a feeding bottle the combination with a plug or stopper having a suitable air
inlet or inlets, of a metallic valve such as D mounted on a spring or spring arm
such as F, G, and adapted to open and close such air inlet or inlets substantially as
described.