An Improved Valveless Syphon for Draining Cisterns, Tanks, and the like.
Year: 1892

page_text: Date of Application, 5th Dec., 1892
Complete Specification Left, 4th Sept., 1893-Accepted, 25th Nov., 1893
PROVISIONAL SPECIFICATION.
An Improved Valveless Syphon for Draining Cisterns, Tanks, and
the like.
FRED RAWSON 7 Beaconsfield Terrace, Kirkstall, Leeds Plumber THOMAS
SARFORTH RHODES 59 Albert Terrace, Kirkstall, Leeds Mechanical Draughtsman
do hereby declare the nature of this invention to be as follows:-
This invention as for its object, the construction of valveless syphons for
draining cisterns, tanks & the like and consists of a syphon, to the short leg of
which is attached a cylinder, or the leg itself may form the cylinder, the top of the
said cylinder is closed with the exception of a small hole for the piston or disc rod
to pass through, the bottom end of the cylinder is open & is provided with a series
of holes round the lower rim for the water or other liquid to pass into the cylinder,
The short leg of the syphon is attached to the cylinder, by means of a bend or
elbow, which bend or elbow joins the cylinder near the top. & is fitted to a side
opening. A piston or disc together with its rod works in the cylinder, the said
piston or disc, may be worked direct by its rod or by lever connections.
The action of the apparatus is as follows, suppose the syphon leg to be immersed
in a tank or cistern of water, the piston or disc contained in the cylinder being at
the bottom of the said cylinder, water will drain through the holes in the cylinder
to the level of the water in the tank or cistern, the piston or disc is drawn up by
means of its rod, when the water contained in the cylinder, above the piston or
disc, is flushed up the syphon, thereby starting the syphon, the piston or disc in its
upward course, passes the opening in the side of the cylinder, which opening being
connected with the syphon by the bend or elbow, thus leaves a free course for the
syphon to continue its action, until the water contained in the cistern, is lowered to
the level of the holes in the bottom of the cylinder, when air being admitted the
action of the syphon stops, & the piston or disc, together with its connections falls
to the bottom of the cylinder ready for another operation.
Dated this 2nd day of December 1892.
FRED RAWSON.
THOMAS SARFORTH RHODES.
COMPLETE SPECIFICATION.
An Improved Valveless Syphon for Draining Cisterns, Tanks, and
the like.
We FRED RAWSON 7 Beaconsfield Terrace Kirkstall Leeds Plumber and
THOMAS SARFORTH RHODES 59 Albert Terrace, Kirkstall Leeds Mechanical
Draughtsman 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 as for its object the construction of valveless syphons, for draining
cisterns tanks & the like and consists of a syphon, to the short leg of which is
attached a cylinder, or the leg itself may form the cylinder, the top of the said
cylinder is closed with the exception of a small hole for the piston or disc rod, to
pass through, the bottom end of the cylinder, is open & is provided with a series of
holes, round the lower rim, for the water or other liquid to pass into the cylinder,
the short leg of the syphon is attached to the cylinder, by means of a bend or
elbow, which bend or elbow joins the cylinder near the top, & is fitted to a side
opening, a piston or disc together with its rod, works in the cylinder, the said
piston, or disc, may be worked direct, by its rod, or by lever connections.

page_text: The action of the apparatus is as follows, suppose the syphon leg, to be immersed
in a tank or cistern, of water, the piston or disc, contained in the cylinder, being at
the bottom of the said cylinder, water will drain through the holes in the cylinder,
to the level of the water in the tank or cistern, the piston or disc is drawn up by
means of its rod, when the water contained in the cylinder, above the piston or
disc, is flushed up the syphon, therby starting the syphon. The piston or disc
in its upward course passes the opening in the side of the cylinder, which opening
being connected with the syphon by the bend or elbow, thus leaves a free course
for the syphon to continue its action, until the water contained in the cistern or
tank is lowered to the level of the holes in the bottom of the cylinder, when air
being admitted the action of the syphon stops, & the piston or disc together with
its connections falls to the bottom of the cylinder, ready of another operation.
The drawing shows different arrangements, of syphon to cisterns.
Fig. 1 & 2 shows, it fixed to the bottom of cistern,
Fig. 3 shows an arrangement, with the syphon, passing over the side of the
cistern,
Fig. 4 as an arrangement for cast iron cisterns.
Fig. 5 is a section of the syphon cylinder.
A is the cylinder. B the piston or disc, which is provided with a well C, &
piston rod D. The cylinder is fitted with a top E, having a projecting boss F, which
boss enters the well C, of the piston B, & as the said well C, is full of water, when
the piston B arrives at the top of the cylinder the water contained in the well C,
traps the joint. The cylinder is provided with the side opening G, to which is
attached the syphon pipe, for the discharge.
The cylinder A, is provided with holes A' to let the water into the inside of the
cylinder when the flange of cylinder, stands on the bottom of the cistern.
Or when the cylinder flange is clear of the bottom, as in Figs. 1, 2 & 4, the water
passes the slack of the piston or disc B.
Fig. 6 is another modification, for syphoning, casks & the like, & consists of the
cylinder A, dise or piston B, & discharge leg C, the liquid passes, the slack of the
piston B, & upon drawing up the piston rod, the contents of the cylinder A, are
discharged, down the discharge pipe C, thus starting the syphon action; the
apparatus stops, syphoning, by pushing down the piston rod.
Having now particularly described & ascertained, the nature of our invention,
& in what manner the same is to be performed, we declare that what we
claim is
(1.) In a syphon with cylinder like Fig. 5, the cylinder A, piston B, well C, in
piston B, the cover E provided with its projecting boss F, side opening G in the
cylinder A, which first forms the charging pipe, & when the piston as passed, the
same in its upward course the delivery pipe of the syphon, all substantially as
described & set forth.
(2.) The arrangement, of syphon like Fig. 6, consisting of cylinder A, piston B,
& discharge pipe C, all arranged substantially as described & set forth.
Dated this 2nd day of September 1893.
FRED RAWSON,
7, Beaconsfield Terrace, Kirkstall, Plumber.
THOMAS SARFORTH RHODES,
59, Albert Terrace, Kirkstall, Mechanical Draughtsman.