IMPROVEMENTS IN WASTE PREVENTING CISTERNS
Year: 1883

page_text: LETTERS PATENT to Benjamin Crocker Cross of Leeds in the County of
York Civil Engineer for an Invention of IMPROVEMENTS IN WASTE
PREVENTING CISTERNS
PROVISIONAL SPECIFICATION left by the said Benjamin Crocker Cross
at the Office of the Commissioners of Patents on the 19th February 1883.
BENJAMIN CROCKER CROSS of Leeds in the County of York Civil Engineer
IMPROVEMENTS IN WASTE PREVENTING CISTERNS.
The object of this Invention is to provide a waste preventing Cistern for Closets
Urinals or any other purpose where a certain quantity is required at each discharge
of the cistern. To effect which object I have a cistern of any suitable size form or
material at the bottom of which there is a small box attached with a moveable
can inside same In the cistern there is an upright pipe which carries a wheel' or
pulley and over this wheel or pulley is a chain or cord at one end of which is a
weighted plug and the other end passes down the upright pipe and is attached to
the can loosely attached to the plug is a catch on which is fastened a float.
These are so arranged that when the cistern holds nearly the required quantity
the float rises and propels the catch on to a lever. The height of the water in the
cistern is regulated by means of a ball valve. The Action is as follows. Should
the lever be pulled at any time until the cistern has nearly the required quantity
in it none of the working part of the valve is effected thereby but should the
lever be pulled after the catch has been propelled forward the valve is then raised
slightly and the water rushes into the can which being suddenly weighted pulls
the plug a little higher when immediately the catch recedes from the lever. When
the water has been nearly all drawn off the can is again lightened and the plug
returned to its seat. Should an
Action be required the lever and catch
and float are dispensed with and the can instead of simply having a hole in the
bottom as in the former case has a small syphon on the inside of same
The action
then is as follows. The supply is always running at any regulated speed and fills.
Price B2)

page_text: the cistern to the top of the overflow or upright pipe the water then runs down the
same and falls into the can gradually filling it, as soon as the can with its contents
gets heavier than the plug it raises same slightly and water immediately begins
to run from the plug hole into the can which further increases the weight of the
can and causes the plug to be raised higher the water then rushes into the can
faster than the syphon can discharge it and being thus fully charged the whole
contents of the can are emptied-the can being again thereby lightened causes the
plug to return to its seat. This action periodically takes place as long as the
supply is kept running
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Benjamin Crocker Cross in the Great Seal Patent Office on the
18th August 1883.
BENJAMIN CROCKER CROSS of Leeds in the West Riding of the County of
York Civil Engineer IMPROVEMENTS IN WASTE PREVENTING CISTERNS
My Invention consists in constructing a Waste Preventing Cistern for closets,
urinals or any other purpose where a certain quantity is required to be drawn off
at each discharge of the Cistern.
Having thus explained the nature of my Invention I will now more fully
describe the construction of same for which purpose I shall have reference to the
accompanying Sheet of Drawings.
I have a Cistern of any suitable size and form and at the bottom of same is a
small box (H) securely attached thereto and with a loose moveable Can (F) inside
same.
In the Cistern and over the centre of the box (H) is fixed an upright pipe (A)
which carries a wheel or pulley (G) and over this wheel or pulley runs a chain or
cord, at one end of which is attached a weighted plug or valve (E) and the other
end passes down the upright pipe (A) and is fastened to the Can (F) loosely attached
to plug (E) is a catch (B) on to which is fastened a float (C). These are so arranged
that when the Cistern holds nearly the required quantity the float rises and projects
the catch forward so that if the lever (D) be pulled it will lift the plug or valve,
but until the Cistern has nearly the requisite quantity in it the float and catch
remains in the position shown in Figure 1. so that if the lever cannot be pulled at
such times the valve cannot be raised-The height of water in Cistern is regulated
by a Ball Valve (I).
The action is as follows:-The Ball Valve fills the Cistern and when nearly the
required quantity is in the Cistern the Catch (B) is projected on to the lever (D).
Should the lever be then pulled it slightly raises the Valve (E) (the lever is so
fixed that it can only lift the Valve a certain regulated height) the water then
rushes through the Valve seat (K) into the Can (F); this Can has a hole in the

page_text: bottom of same but smaller in diameter than the Valve seat, consequently when
the water suddenly rushes into the Can it is thus weighted and becomes heavier
than the Valve (E) and causes the Valve to rise higher than the lever can lift it-
when immediately by reason of the float being lifted out of the water, the catch
falls back to its original position-the water then continues to discharge until the
Cistern is nearly empty when the Can (F) again becomes lighter than the Valve (E)
and immediately the Valve returns to its seat, whether the lever be up or down.
The various parts may be made of any suitable metal, wood or other material.
What I lay claim to in this Invention is.
1 The moveable catch with float attached so arranged that the lever cannot
raise the Valve until the Cistern is nearly filled
2nd The Can attached to the Valve over the wheel or pulley as shewn.
3rd The arrangement and construction of a Waste Preventing Cistern sub-
stantially as and for the purpose set forth and as described in the annexed
drawings.
In witness whereof I the said Benjamin Crocker Cross have hereunto set my
hand and seal this seventeenth day of August in the year of our Lord One
thousand eight hundred and eighty three
DEN
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