Improved Methods of Forcing up Liquids, or Flushing out Liquids in Drains or Pipes, and Apparatus connected therewith.
Year: 1896

page_text: Date of Application, 12th Oct, 1896
Complete Specification Left, 6th July, 1897-Accepted, 7th Aug., 1897
Improved Methods of Forcing up Liquids, or Flushing out Liquids
in Drains or Pipes, and Apparatus connected therewith.
SAMUEL HENRY ADAMS Hydraulic Engineer Peaseholm Green York do hereby
declare the nature of this invention to be as follows:-
Whereas in sewering low level districts or in laying a sewer or pipe beneath the
bed of a stream the said sewer or pipe may be laid at such an inclination or even with
the inclination in the reverse direction, as an inverted syphon, with the result that it
is with difficulty kept free from deposit or stoppage. One of my objects now is to
prevent such stoppage. For this purpose at a given elevation above such sewer or
pipe I connect a pipe thereto placed by preference vertically, and I discharge liquid
into this vertical pipe-by preference from a Flushing Tank, or if desired from any
other source-upon the sewer or pipe at a point preferably near to my vertical pipe
above mentioned I place a reflux or back pressure valve which whilst admitting the
passage of liquid in one direction prevents its return from the same-and upon the
discharge of the Flush Tank or other supply taking place, the liquid so delivered
through my vertical connection to the sewer or pipe will exert its pressure upon that
contained in the said sewer or pipe-the contents of which will be thus forced onward
in the direction desired, and to the height intended, it being understood that house or
other connections made upon the sewer or pipe shall be fitted by preference with a
reflux valve to prevent the return of liquid in their direction, it will be clear that by
elevating my Flush Tank or source of supply and vertical pipe connected to sewer or
drain that I may put any desired pressure upon the latter.
In another form I so arrange my Flush Tank or supply that the liquid discharged
therefrom entering a receptacle containing air and liquid and being closed in, shall
put the air therein under pressure and force the liquid contents of the receptacle
therefrom to a height depending upon the pressure due to my water supply. I
provide a reflux valve upon my receptacle which shall admit liquid to but prevents its
escape from the receptacle excepting by way of the exit provided. I may also arrange
that the liquid from my Flush Tank or other source of supply shall in its descent
carry a certain amount of air with it into the receptacle containing liquid to be
forced-this air being effective in expelling an additional amount of liquid from the
receptacle aforesaid.
Dated this 9th day of October 1896.

page_text: Improved Methods of Forcing up Liquids, or Flushing out Liquids
in Drains or Pipes, and Apparatus connected therewith.
SAMUEL HENRY ADAMS Hydraulic Engineer Peaseholm Green York 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:-
Whereas in sewering low level districts or in laying a sewer or pipe beneath the
bed of a stream the said sewer or pipe may be laid at such an inclination or even with
the inclination in the reverse direction-as an inverted syphon-with the result that
it is with difficulty kept free from deposit or stoppage. One of my objects now is to
prevent such stoppage. For this purpose at a given elevation above such sewer or
pipe I connect a pipe thereto placed by preference vertically and I discharge liquid
into this pipe-by preference from a Flush Tank or if desired from any other source-
upon the sewer or pipe at a point preferably near to my pipe above mentioned I place
a reflux or back pressure valve which whilst admitting the passage of liquid in one
direction prevents its return in the same and upon the discharge of the Flush Tank
or other supply taking place the liquid so delivered through my vertical connection to
the sewer or pipe will exert its pressure upon that contained in the said sewer or pipe
the contents of which will be thus forced onward in the direction desired and to the
height intended, it being understood that house or other connections made upon the
sewer or pipe shall be fitted by preference with a reflux valve to prevent return of
liquid in this direction. It will be clear that by elevating my Flush Tank, or source
of supply and vertical pipe connected to sewer or drain that I may put any desired
pressure upon the latter.
In another form I so arrange my Flush Tank or supply that the liquid discharged
therefrom entering a receptacle containing air and liquid and being closed in-shall
put the air therein under pressure and force the liquid contents of the receptacle
therefrom to a height depending upon the pressure due to my water supply. I
provide a reflux valve upon my receptacle which shall admit liquid to, but prevent its
escape from the receptacle excepting by way of the exit provided. I may also arrange
that the liquid from my Flush Tank or other source of supply shall in its descent
carry a certain amount of air with it, into the receptacle containing liquid to be
forced, this air being effective in expelling an additional amount of liquid from the
receptacle aforesaid.
Reference to my drawings will explain my invention. Fig. 1 shews this in one
form where a Flush Tank A or similar contrivance discharges into a pressure pipe B
and thence to a receptacle C into which liquid has entered by way of the reflux valve D.
This receptacle is thus put under a pressure due to the column of liquid in B and the
cushion of air confined in C will be subjected to additional compression depending
upon the falling liquid in B. This additional compression of the air will give a value
in driving out the contents of the drain or sewer connected, which without this
momentary additional increase of air pressure, the liquid alone would be incapable of.
At E the drain pipe is shewn connected, and at F is à vent pipe into which a certain
amount of air is drawn to B and C by the falling liquid from A. Fig. 2 shews my
invention similarly lettered and identical in construction except that in this form I
make no provision for air to be retained as at C in Fig. 1, simply connecting my
pressure pipe from Flush Tank to the reflux valve box at G which couples the
incoming and outgoing sewer or drain. I thus put the drain or sewer H directly
under the pressure of the liquid contents of pressure pipe B.

page_text: 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 use in a Flushing apparatus of a Flush Tank-Reflux valve and pipe
connecting these in combination-for the purpose of putting a drain or sewer
connected therewith under pressure.
2nd. The use of a reflux valve on a sewer or drain in combination with a Flush
Tank or other source of supply, so placed that on a given discharge taking place the
liquid thus discharged shall be compelled to travel in a forward direction with the
object of flushing the sewer or drain.
3rd. The use of the air cushion shewn at Fig. 1 in combination with a reflux valve
and source of supply, for sewer or drain flushing.
4th. The apparatus as shewn and described or apparatus which though differing
slightly is practically the same and for the same purpose.
Dated this 2nd day of April 1897.