Improvements in or relating to Flushing-apparatus for Water- closets and the like.
Year: 1896

page_text: Date of Application, 12th May, 1896-Accepted, 13th June, 1896
COMPLETE SPECIFICATION.
Improvements in or relating to Flushing-apparatus for Water-
closets and the like.
A communication from FRIEDRICH WANGELIN, of Dresden, Saxony, in the
Empire of Germany, Merchant.
I, ALFRED JULIUS BOULT, of 111 Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, 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 :-
The present invention relates to apparatus for flushing water-closets and has for
its object the obtainment of a powerful flush by the sudden discharge of a body
of water in consequence of a cistern being tilted, the admission valve for water
being gradually and smoothly closed after the cistern tilts.
For this purpose a trough-shaped vessel is placed so as to be capable of turning
in a fixed tank or box which vessel turns over when filled to a certain extent, and
normally remains tilted. When the closet is again used, this tilting vessel by
means of a pulling device operated by hand or connected to the seat is brought
from its upturned vertical position into a horizontal position in order to be again
filled, the lever of the water-admission valve being at the same time so turned
that the latter is opened. As soon as water level in the tilting vessel reaches a
certain height it becomes "top-heavy" and turns over.
During the filling of the vessel another vessel attached to one arm of the
admission valve lever is filled with water and becomes thereby heavier than the
balance weight on the other arm of the said lever. But the contents of this second
vessel escape slowly through a small hole and its weight becoming correspondingly
less and less, the balance weight gradually sinks, so that the valve lever turns
slowly and the valve is closed not suddenly, but slowly and without shocks.
The tank, as well as the two vessels are normally empty, so that it cannot be
damaged by frost.
In the accompanying drawings
Fig. 1 is a longitudinal section,
Fig. 2 a plan, and
Fig. 3 a transverse section of a flushing device according to this invention.
The dotted position in Fig. 3 shows the vessel overturned in normal position.
In the tank b provided with a discharge pipe a there is arranged the tilting
vessel d supported on trunnions c. In its horizontal position this vessel rests with
its flange e against a flange e¹ formed on the tank b (Fig. 2). The water admission
valve the casing of which is attached to the side of the tank b is opened and
closed by the two-armed lever g. On the arms of the latter which is pivotted to
the valve-casing there is on one side a trough with a narrow opening (not shown
in the drawing) in the bottom while on the other hand there is attached to it a
balance weight k, from which a hooked arm i projects over the edge of the tilting
vessel d.
By sitting down on a movable seat or by pulling by hand a suitable pulling
device, the vessel d is brought from the position in which it is shown in dotted
lines in Fig. 3 into the horizontal position in which it is shown in full lines and by
striking with its edge against the hook i raises the weight k and turns the lever g
which then opens the admission valve f. When the water flowing in the vessel d

page_text: fills the trough by overflowing into it then the limit of filling of the vessel d is
reached and in consequence of its peculiar shape it becomes heavier on one side
and turns over, its contents flowing into the tank b and out at the discharge pipe a.
At the same time the trough empties itself gradually and the lighter it becomes
the more the balance-weight k sinks and slowly raises the lever g into the closing
position.
Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondent, and in what manner
the same is to be performed, I declare that what I claim is ;-
1. A flushing arrangement for water-closets and the like characterised by a
vessel d arranged in a tank b so as to be capable of turning over the said vessel d
turning over when the water lever in it reaches a certain height in order to
suddenly empty its contents and bringing when again coming into horizontal position
the lever g of an admission valve f into the opening position by raising the balance
weight k after which a trough which becomes filled when the water level is at a
maximum causes a gradual closing of the valve by its gradual emptying
substantially as described.
2. The combination and arrangement of parts constituting a complete flushing
device substantially as and for the purpose described and illustrated in the
accompanying drawings.
Dated this 12th day of May 1896.
BOULT & WADE,
Agents for the Applicant.