An Improvement relating to Flushing Cisterns.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
An Improvement relating to Flushing Cisterns.
I, JOSEPH PRESTWICH, of Elm Bank, 72, Eccles Old Road, Eccles, in the County
of Lancaster, Manager, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to enable a flushing cistern provided with an
after flush to be readily adapted to give any desired amount of after flush,
and the invention consists in so forming the bottom of the flushing cistern and the
after flush tube that the latter is readily removable from and applicable to the
flushing cistern.
For this purpose I prefer to use the following arrangement.
The improved after flush device consists of a tube at the lower end of which is a
shoulder ground conical at its upper surface to fit in a seating at the bottom of the
flushing cistern. The tube is open at both ends and provided at a suitable part
above the said shoulder with a comparatively small hole or holes.
The lower side of the shoulder rests on a washer in a coupling screwed on the
outside of a tubular boss or pap of the flushing cistern and thus the tube, although
removable, is fitted quite water tight in the cistern as the screwing up of the
coupling secures the coned shoulder tightly against the seating.
Other means for securing a removable after flushing tube in the bottom of the
cistern may be adopted if preferred.
Dated this 2nd day of Dambor 1807
GEO. DAVIES & SON,
Agents for the Applicant,
4, St. Ann's Square, Manchester.
An Improvement relating to Flushing Cisterns.
I, JOSEPH PRESTWICH, of Elm Bank, 72, Eccles Old Road, Eccles, in the County
of Lancaster, Manager, 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 object of this invention is to enable a flushing cistern provided with an

page_text: after flush tube to be readily adapted to give any desired amount of after flush,
and the invention consists in so forming the bottom of the flushing cistern and the
after flush tube that the latter is readily reinovable from and applicable to the
flushing cistern, and can be replaced by, or replace, another tube and so vary
or adjust the after flush if desired.
For this purpose I use the following arrangement of which I have annexed a
drawing shown half in section.
The improved after flush device consists of a tube a at the lower end of which
is a shoulder ground conical at its upper surface as shewn to fit in a seating c
at the bottom of the flushing cistern c. The tube a is open at both ends and pro-
vided at a suitable part above the said shoulder with a comparatively small hole
or holes a*, so that after the full flush of water has flowed from the cistern c, and
the water level has descended to the top of the tube a the remainder will flow more
slowly, as usual, for the after flush.
The lower side of the shoulder b rests in a coupling d screwed on the outside of
a tubular boss or pap of the flushing cistern and thus the tube a although
removable, is fitted quite water tight in the cistern c as the screwing up of the
coupling & secures the coned shoulder b tightly against the seating c¹. The lower
end of the tube a is connected to the escape pipe for the flush of water or other
fluid and the said tube a is also connected to any known means of preventing the
escape of such fluid until the flushing is required to take place.
Other means for securing the after flushing tube in a manner easily removable
in the bottom of the cistern may be adopted if preferred.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I wish it to be under-
stood that I am aware of Letters Patent No. 24219 of 1897 granted to Daniel
Hurst and that I do not claim anything described and claimed in the Specifica-
tion of the said Letters Patent but I declare that what I claim is:-
A removable after flushing tube provided with conical shoulder fitting a seating
in the bottom of the flushing cistern, substantially as hereiubefore described.
Dated this 2nd day of September 1898.
GEO. DAVIES & SON,
Agents for the Applicant,
4, St. Ann's Square, Manchester.