Improvements in Syphon Cisterns for Flushing Closets, Urinals, and for other purposes.
Year: 1894

page_text: Date of Application, 25th Jan., 1894
Complete Specification Left, 22nd May, 1894-Accepted, 23rd June, 1894
PROVISIONAL SPECIFICATION.
Improvements in Syphon Cisterns for Flushing Closets, Urinals,
and for other purposes.
WALTER SHARP Sanitary Engineer 44 Dundas Street (City) Glasgow, do
hereby declare the nature of this invention to be as follows:-
a
My invention consists of a suction arrangement in combination with a lift valve
attached to the syphon in cisterns a description of which is as follows viz. I fix
a valve seat to bottom of cistern, working in which is a stand pipe having
double bridge and disc carried a few inches above top part of said stand pipe.
To this disc I attach a flexible washer which acts as a sucker. Over this stand
pipe and sucker I place a hood or cover having a concave top and air regulating
screw. When this cover is in position the concave top presses on the washer
before mentioned. The hood and stand pipe thus forming the syphon apparatus.
The mode of working which is by means of the ordinary lever attached to the
cistern on the one part and to the crown of syphon hood on the other.
the lever is depressed it raises the syphon hood having the stand pipe hanging
to it inside by means of the suction washer, thus opening the valve at the bottom
of stand pipe and instantly starting the syphon. The air regulating screw on
the crown of syphon hood is for regulating the lifting and holding power of the
suction washer. Immediately that syphonage takes place the small amount of air
which the regulating screw allows to pass causes the suction washer to loose its
hold of the crown of hood letting the stand pipe and valve drop back into their
place.
When
My invention consists of a combination of suction arrangement attached to the
crown of hood and stand pipe all as described in the foregoing.
nh: 04th daw of Ton 1804
COMPLETE SPECIFICATION.
Improvements in Syphon Cisterns for Flushing Closets, Urinals,
and for other purposes.
1, WALTER SHARP, of 44 Dundas Street, Glasgow, Sanitary 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 Improvements in Syphon Cisterns for Flushing Closets,
Urinals and for other purposes, and consists of a suction arrangement in com-
bination with a lift valve attached to the syphon in a manner as follows and as
illustrated in sectional elevation in the accompanying drawings.
In carrying out my said invention I fix to the bottom of the cistern A, by any
suitable means, a valve seat B, within which works a valve C and stand pipe D,
baving a guide bracket or ring D', said standpipe is provided at its top end with a
bridge piece d and disc d'. The said disc is provided with an indiarubber or
other flexible washer E which acts as a suction. Over this standpipe D and
suction washer E I place a hood or cover piece F having a concave top fand an
air regulating screw or groove f¹, which in combination with the standpipe D forms
the syphon apparatus. When the hood or cover F is in its normal position the

page_text: inner surface of its concave topf presses down upon the flexible washer E of the
standpipe D, in such a manner, that on the outer end g of the ordinary operating
lever G being depressed the hood F is raised owing to its upper end being attached
to the inner end of the lever G, and at the same time the valve C and standpipe D
are raised up owing to the action of the concave top of the hood F and suction
washer E; the said raising up or opening of the valve C instantly starts the
syphon and the small amount of air which the regulating screw or groove f' allows
to pass behind or above the suction washer E, causes it to loose its hold of the
crown of the hood F and so allow the valve C and stand pipe D to fall back or
down into their normal position as shown.
The air regulating screw or groove f¹ regulates or determines the lifting and
holding power of the hood F and suction washer E.
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 :-
1st. The general arrangement, construction and combination of the various parts
constituting the improved syphon cistern for flushing closets, urinals and for other
purposes, substantially as hereinbefore described and shown in the accompanying
drawings.
2nd. In syphon cisterns for flushing closets, urinals and the like, the suction
arrangement for starting the syphon, substantially as hereinbefore described and
shown in the accompanying drawings.
Dated this 21st day of May 1894.
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.