An Improved Slide or Sluice Valve.
Year: 1890

page_text: Date of Application, 22nd Apr., 1890
Complete Specification Left, 22nd May, 1890-Accepted, 25th Oct., 1890
PROVISIONAL SPECIFICATION.
An Improved Slide or Sluice Valve.
I, ERNST STORCH of Breslau in the German Empire, Engineer, do hereby declare
the nature of this invention to be as follows:-
The valve of this invention is designed mainly to be used for granular, pulverised
and viscous substances. The object of the invention is to keep the slide whether in
motion or not, permanently in contact with its scating. For this purpose the back of
the slide is in connection through one or more links and a single or double lever,.
with a crank spindle, one end of which, passes through the casing in which the valve.
is fitted. This outer end of the spindle carries a weighted lever operating through the
aforesaid connections so as to cause the slide to be pressed permanently against its
seating.
Instead of a weighted lever the requisite pressure may be obtained by means of a
piston mounted to oscillate on the valve casing or by equivalent means.
Dated this 22nd day of April 1890.
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Slide or Sluice Valve.
I, ERNST STORCH of Breslau in the German Empire 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 relates to a slide or sluice valve which is so arranged that at all
points of its stroke it bears without lifting against the bed on which it slides, the
sliding surfaces being absolutely tight for any material and at any pressure.
It is
designed mainly for use with granular, pulverised and viscous substances or such
substances as in the valves of the known construction enter between the slide and its
bed separating the two surfaces and preventing efficient action of the valve unless the
same is subjected to very great pressure. The object of the invention is to keep the
slide always in contact with its bed.
In the accompanying drawing
Figs. 1, 2, 3 are a longitudinal section, a sectional plan and a cross section of the
valve of this invention.
Fig. 4 is a longitudinal section shewing a slightly different construction.
Figs. 5, 6, 7, shew a construction suitable for valves of small dimensions.
Figs. 8, 9, one suitable for acid material and
Figs. 10, 11, 12, a construction allowing of the valve as a whole being of a
diminished length.
a is the valve casing, the slide, c slide spindle through which the slide is operated.
The lifting of the slide from its bed is prevented in the following way: a weight d
on lever e outside the casing acts upon small levers within the casing so as through
part g and one or more links h to press against the back of the slide. Upon opening
the valve by operating spindle c, part g and weight d will be raised.
In Fig. 1 the valve slide is shewn in the open position and the links / or pressure
rods in the corresponding position in dotted lines.
In Figs. 5, 9, the pressure upon the slide is obtained by means of a piston / moving
in oscillating cylinder k connected to hollow spindle i. Water, air, or other pressure
coming through a conduit into the hollow spindle, say at n passes to and acts upon
Fig. 4 is a longitudinal section shewing a slightly different construction.
Figs. 5, 6, 7, shew a construction suitable for valves of small dimensions.
Figs. 8, 9, one suitable for acid material and
Figs. 10, 11, 12, a construction allowing of the valve as a whole being of a
diminished length.
a is the valve casing, 6 the slide, c slide spindle through which the slide is operated.
The lifting of the slide from its bed is prevented in the following way: a weight d
on lever e outside the casing acts upon small levers within the casing so as through
part g and one or more links h to press against the back of the slide. Upon opening
the valve by operating spindle c, part g and weight d will be raised.
In Fig. 1 the valve slide is shewn in the open position and the links / or pressure
rods in the corresponding position in dotted lines.
In Figs. 8, 9, the pressure upon the slide is obtained by means of a piston / moving
in oscillating cylinder k connected to hollow spindle i. Water, air, or other pressure
coming through a conduit into the hollow spindle, say at n passes to and acts upon

page_text: the inner surface of piston keeping the ball o during the whole of the stroke pressed
against the back of the slide so as to prevent it from lifting. The pressure may be
produced by a small accumulator in connection with a pump. Screw p serves for the
introduction from time to time of lubricant to the piston 7, the cover being removed
for this purpose. When the slide is being drawn back to open the valve the piston
travels back into the cylinder against the pressure acting against it through hollow
spindle i, to take up when the valve is open the position shewn in dotted lines in
Fig. 8. The cylinder with piston and slide may be made of any suitable acid resisting
material such as porcelain, glass, etcetera.
In Figs. 10, 11, 12 weights d act through levers e on small levers within the
casing which instead of carrying oscillating links or pressure rods h bear upon
shoulders s or rails and through these keep the slide pressed down.
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:
-
A slide or sluice valve with slide which at one or more points is pressed against its
slide bed in the whole of its travel by the action of one or more weighted levers or by
one or more pistons under pressure substantially as described and shewn.
Dated this 22nd day of May 1800
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicant.