An Improved Valve, especially intended for the Use in Surgical and like Irrigators.
Year: 1894

page_text: Date of Application, 31st Mar., 1894-Accepted, 25th May, 1894
COMPLETE SPECIFICATION.
An Improved Valve, especially intended for the Use in Surgical
and like Irrigators.
I, JOSEF RAAB, of Ludwigshafen-on-the-Rhine, Kingdom of Bavaria, German
Empire, Physician 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 an automatic valve, that is intended especially to
be used with irrigators, and which may be operated by the same hand that holds the
hose of the apparatus, as will be more fully described hereinafter.
Referring to Figs. 1 and 2, of the accompanying drawing, a and a' are the two
parts constituting the casing for the valve proper 6 with its stem b'. Valve bis
situated within the cavity of part a of the casing, whilst the stem 61 runs through
the bore of part a' of the casing, and extends a short distance beyond the free end
of the same.
The hose coming from the vessel of the irrigator is connected with part a, whilst
the other part (a) of the casing is connected by hose c with the delivery-piece d
of the irrigator.
Valve is kept closed by the pressure of the liquid contained within the vessel
and the hose of the irrigator, so that no cock or similar device is necessary.
In order to open the valve and let the water or other liquid escape, the thickened
part c of the short hose c is pressed onto the thickened end of stem b¹ (Fig. 3), so
that, if the pressure is carried still further, valve b is pushed off its seat by said stem
(Fig. 4). The liquid may flow then through the valve-casing as long as required,
or is flowing through the same as long as the stem of the valve is kept in the
position shown in Fig. 4.
If the parts a b c are let loose after use, the valve will instantly be automatically
closed on account of the pressure of the liquid, as above mentioned.
In case, the vessel of the irrigator contains but little liquid, it may happen, that
the pressure of the same does not suffice for effecting the automatic closure. This
may be overcome by arranging a spring e within the valve-casing, as represented in
Figs. 5 & 6, which will be clear without further explanation.
The connecting-hose c between the parts a¹ and d may be made directly in the
shape shown in Fig. 3, so that the thickened part c¹ lies always close to the end of
the stem b', without, however, pressing on the same. The pressure is exerted only
by a finger of the operator.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
-
1. In an automatic valve, especially for use in irrigators, the combination with a
valve adapted to be held on its seat by the pressure of the fluid of a stem fixed to
said valve, and adapted to remove the same from its seat, for the purpose as
described.
2. In an automatic valve, especially for use in irrigators, the combination with a
valve adapted to be held on its seat by the pressure of the fluid, of a stem
extending through a channel of the valve-casing and extending beyond the same,
said stem being adapted to remove the valve from its seat, for the purpose as
described.
3. In an automatic valve, especially for use in irrigators, the combination with a
bipartite valve-casing, of a valve adapted to be held on its seat by the pressure of

page_text: the fluid, said valve having a stem adapted to remove it from its seat, a spring
adapted to close the valve being arranged within the casing, for the purpose as
described.
4. In an automatic valve, especially for use in irrigators, the combination with a
bipartite valve-casing connected at one side with the storage-vessel of the irrigator
or the like, and at the other side with the delivery-part, of a valve adapted to be
held on its seat by the pressure of the fluid, and having a stem adapted to remove
it from its seat, for the purpose as described.
5. In an automatic valve, especially for use in irrigators, the combination with a
bipartite valve-casing connected at one side with the storage-vessel of the irrigator
or the like, and at the other side with the delivery-part, of a valve adapted to be
held on its seat by the pressure of the fluid, said valve having a stem extending
through a channel of the valve-casing and extending beyond the same, said stem
being adapted to remove the valve from its seat, for the purpose as described.
6. In an automatic valve, especially for use in irrigators, the combination with a
bipartite valve-casing connected at one side with the storage-vessel of the irrigator
or the like, and at the other side with the delivery part by means of a hose, of a
valve adapted to be held on its seat by the pressure of the fluid, said valve having
a stem adapted to be moved by the mediation of said hose and to remove in its turn
the valve from its seat, for the purpose as described.
7. In an automatic valve, especially for use in irrigators, the combination with a
bipartite valve-casing, connected at one side with the storage-vessel of the irrigator
or the like, and at the other side with the delivery-part by means of a hose, of a
valve adapted to be held on its seat by the pressure of the fluid, said valve having
a stem extending through a channel of the valve-casing and being adapted to be
moved by the mediation of the hose on its projecting part and to remove in its turn
the valve from its seat, for the purpose as described.
8. In an automatic valve, especially for use in irrigators, the combination with a
bipartite valve-casing, connected at one side with the storage-vessel of the irrigator
or the like, and at the other side with the delivery-part by means of a hose, of a
valve adapted to be held on its seat by the pressure of the fluid, said valve having
a stem extending through a channel of the valve-casing and being adapted to be
moved by the mediation of the hose on its projecting part and to remove in its turn
the valve from its seat, a spring adapted to close the valve being arranged within
the casing, substantially as described.
Dated this 30th day of March 1894.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents for the Applicant.