Year: 1887

page_text: We DANIEL THOMAS BOSTEL of 24 Charing Cross in the county of Middlesex,
Sanitary Engineer and WILLIAM BOSTEL of the same address, Sanitary Engineer do
hereby declare the nature of this invention to be as follows:-
Our invention has for its object improvements in syphon-flushing cisterns and is
designed to as far as possible obviate the objectionable noise made in discharging the
cistern.
We place an extra bend on the syphon leg and fit over its orifice a perforated pipe,
cage or wire guard in which is contained, while being free to rise and fall, a hollow
rubber, cork or other ball or float which is confined by a stop at the end of the
pipe or cage when it rises on account of the incoming flush.
The ball dropping on the open end of the syphon prevents the noise aforesaid.
ր
1000
POPPLEWELL, COLTON & Co.,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Syphon-flushing Cisterns.
We DANIEL THOMAS BOSTEL and WILLIAM BOSTEL both of 24 Charing Cross in
the county of Middlesex Sanitary Engineers 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 :-
Our invention has for its object improvements in syphon flushing cisterns and is
designed to, as far as possible obviate the objectionable noise, in discharging the
cistern. We place an extra bend on the syphon leg, and fit on it a perforated, pipe,
cage, or wire guard in which is contained a hollow rubber, cork, or other ball float,
which is confined by a stop at the end of the pipe, cage, or wire guard when it rises
due to the incoming flush to the syphon. The ball dropping on the open end of the
syphon prevents the aforesaid noise.
In the accompanying drawing we shew a vertical section of a cistern constructed
according to my invention, A is the cistern and B the ball cock C the ball lever and
Dthe ball, E is the pull up lever jointed by the links F. G. H to the syphon
valve is the discharge pipe secured by the union and nut as usual.
According to our invention we place an extra bend K on the syphon leg Lon
which I fit a seating M preferably of rubber or other resilient material to avoid or
reduce concussion. I fit over this seating a cage or wire guard N. As shewn,
we have represented this as a cage made of four wires. I place a hollow rubber ball or
float in this pipe cage or wire guard N and at the top of the pipe cage or wire
guard we place a stop P so as to confine the ball or float at the end of pipe cage or
guard when it rises. We also place a small hole or holes in the bend below the
seating to admit water after the flush is over so that the ball is quickly lifted off
its seat with the incoming flush.
The action is as follows the ball cock admits water to the cistern as usual on opening
the syphon valve the cistern is discharged in the ordinary manner, the ball O rises in
the pipe cage or guard N as the incoming water enters the cistern. The stop P
prevents the ball coming out of the pipe cage or guard. As the flush begins
to cease the ball drops on its seating M which (if Elastic as before
described prevents sudden concussion) and as the ball thus seats itself on the
open end of the syphon prevents the aforesaid noise. The incoming water entering
through the hole or holes Q now gently raises the ball or float O just off its scat so that
it can at once rise when the syphon valve is raised to start the syphon. Instead of
placing the bend K & the pipe, cage or guard, on the frame of the syphon they could
be arranged at right angles to it, so a shorter cistern than the one shewn might be a
used.

page_text: Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is
1st. In syphon flushing cisterns, providing an extra bend such as K (and furnishing
it with a suitable seating) to the inlet leg in combination with a perforated pipe cage
or guard adapted to confine a light ball or float free to rise and fall in the same so that
the said ball or float can drop on the inlet of the syphon as the flush ceases and so
prevent or check objectionable noise substantially as described.
2nd. The combination of syphon, starting valve, extra bend K perforated as at Q,
and carrying an elastic or suitable seating such as M, perforated pipe cage or guard N,
light ball or float O, and a stop to confine the said ball or float substantially as, and
for the purposes described and, illustrated in the accompanying drawings.
T: 01
1000
POPPLEWELL, COLTON & Co.,
Agents for the Applicants.