MECHANICAL IMPROVEMENTS IN THE SANITARY FLUSHING OF WATER- CLOSETS WITH A FIXED OR UNIFORM QUANTITY OF WATER AT EACH FLUSH, DIVISIBLE INTO TWO PARTS, FLUSH AND AFTER FLUSH
Year: 1877

page_text: COMPLETE SPECIFICATION filed by Andrew Sweet at the Office of the
Commissioners of Patents on the 12th December 1877.
ANDREW SWEET, of 102, Hampstead Road, in the County of Middlesex, Iron-
monger. "MECHANICAL IMPROVEMENTS IN THE SANITARY FLUSHING OF WATER-
CLOSETS WITH A FIXED OR UNIFORM QUANTITY OF WATER AT EACH FLUSH, DIVISIBLE
INTO TWO PARTS, FLUSH AND AFTER FLUSH."
This Invention has for its object a more simple mode or means of flushing and
after flushing waterclosets, and for similar purposes, from a single compartment,
cistern, or container, and for preventing waste of water.
The principle or mechanical improvements involved are the application of a
tubular valve and neck-piece to the outlet pipe in connection with a peculiarly
constructed ball valve, so arranged as to give a syphon action both when the outlet
valve is raised or let fall at rest, such syphon action continuing until the whole
contents are discharged.
And in order to the better understanding of this my said Invention and the
manner of performing the same, I will now proceed to describe the several Figures
on the Sheet of Drawings hereunto appended.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a single compartment cistern, on the principle of this Invention, with
the tubular valve forming part of the stand pipe E about two-thirds from the
bottom of cistern open at A, the lever B having been actuated for a flush, and the
water passing through the outlet pipe via the stand pipe E in the direction of the
feathered arrows. On the lever B being released the tubular valve A is closed by
the weighted cap piece C, which on its falling carries with it the neck-piece D; the
water at once rises over the neck-piece and passes to the outlet pipe, as shown by
the plain arrows, thus giving a flush and after flush of full way force. The air
pipe should be fixed at a distance of not less than eight inches from the bottom of
cistern in outlet pipe,

page_text: Figure 2 is intended to show this principle applied to a submerged container; this
container may be made of any shape to hold sufficient water for one flush; the valve
is precisely the same in construction as Figure 1, the essential condition being that
the warning pipe F should be below the top of the neck-piece D.
I also sometimes instead of actuating the valve by a lever as shown in Figure 1, B,
do so with an air tube and valve, as explained in my previous Patent, No. 3554,
Sheet 3, 1873.
Figure 3 represents my improved constant service supply valve which I use in
these cisterns and for other purposes. A is the inlet; Cand B, the outlets; D, the
fulcrum, as shown in Figure 3.
Figure 4 is the shutting-off plug; C is the boring for rubber seat; A is the
fulcrum slot; B are grooves turned out to stay the water being thrown and at the
top of the shutting-off plug; the grooves being of greater capacity than the looseness
of the plug in its fit takes off the pressure and allows the water that has passed to
fall into the outlet B, passing through the passage A, Figure 5.
Having now particularly described the nature of my said Invention and in
what manner the same is to be put in practice, I hereby declare that I claim the
combination or mechanical arrangements for the purposes before mentioned as
herein-before described, it being understood that the details of combination may be
varied as found desirable, provided the arrangements are substantially the same in
effect and have the same intention as here described.
In witness whereof, I, the said Andrew Sweet, have hereunto set my hand and
seal, this Tenth day of December, in the year of our Lord One thousand
eight hundred and seventy-seven.
Witness,
THOMAS BARNES,
50, George St.,
Hampstead Rd,
N.W.
ANDREW SWEET. (L.S.)