Improvements in Valve Cocks.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improvements in Valve Cocks.
I, IVAN CIZEK of Heinrichsgasse 16, Prague, Bohemia, in the Empire of
Austria-Hungary, Engineer, 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 has for its object improvements in valve cocks.
Referring to the accompanying drawings
Figs. 1 and
positions.
are side sectional views showing the handle in two different
A double ended lever d d' has its fulcrum at a' in a projection e of the body of
the cock and with its handle part d acts upon a projection on an opening nozzle b
while the other part d' acts upon an excentric closing flap & forming the valve..
The latter is pivotally mounted on the axis a in the same projection e in which.
the axle a¹ of the lever d d¹ rests.
An important feature of the construction lies in its great simplicity and further
in the fact that the stopping material (i.e. the valve face) is but very little strained
so that a renewal of the same is only very seldom necessary and the cock remains.
for a long time faultlessly tight and in good working order.
If the valve is to be moved from the open position Fig. 1 to the closed position:
Fig. 2 the part d' upon the turning of the lever d d acts in the first place upon
the projection 6' of the valve b the latter with its stopping piece or valve face c
is thus moved against the mouth of the cock.
The surface of 61 lying nearest to the axle a is formed excentrically and upon.
contact of the valve with mouth or valve seating further pressure is exercised upon
the lever d and a firm pressure of the stopper is thereby effected by the excentric
action of d b¹.
Upon the contrary movement of the lever d d the valve (if it should not fall by
its own weight) is moved back or opened by the action of the lever arm d upon
the projection 62 and then upon the further movement of d the valve is fully
opened whereupon passes so far over the vertical that the valve remains of
itself in its open position.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A valve cock in which the pressure of the valve b against the mouth of the
cock and the firm holding of the same thereon is effected by means of a lever such
as d d' mounted in a projection e of the body of the cock the part d'acting upon:
an excentric projection such as 6' on the valve substantially as and for the purposes.
hereinbefore set forth and illustrated.
2. A valve cock consisting of the valve bactuated by the lever d d¹ mounted in
a projection such as e formed integrally with the body of the cock in combination
and acting in conjunction with an excentric projection on the back of the said
valve b which also is mounted in the said projection e substantially in the manner
and for the purposes hereinbefore described and illustrated in the drawings here-
unto annexed.
Dated tha vatn av Of Novemner La92.
a Vath QOY OF Yvember 1892.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,.
Agents for the Applicant.