AN IMPROVED SYPHON WATER WASTE PREVENTER FOR FLUSHING PURPOSES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
WILLIAM JOHN HOLMES, manager to G. H. Flood & Co Ltd, Sanitary Engineers
of 25 & 27 Holland Street Blackfriars in the County of Surrey. I do hereby declare
the nature of my invention for AN IMPROVED SYPHON WATER WASTE PREVENTER
FOR FLUSHING PURPOSES to be as follows:-
An improvement in manufacturing a Water Waste preventer Syphon connected
to cylinder with displacer fitted inside so that on pulling handle the displacer is
raised and the water is instantly discharged with great velocity and gives a perfect
flush to the pan thereby dispensing with suction valves hinge valves rubbers and
other appliances liable to get out of order.

page_text: COMPLETE SPECIFICATION.
"
I, WILLIAM JOHN HOLMES of 25 and 27 Holland Street Blackfriars in the
County of Surrey Brass Founder do hereby declare the nature of my invention
for "AN IMPROVED SYPHON WATER WASTE PREVENTER FOR FLUSHING PURPOSES
and in what manner the same is to be performed, to bé particularly described and
ascertained in and by the following statement :-
·
L
n
401
As an improved syphon Water Waste preventer for flushing purposes" as applied
to the flushing,of, Water Closets Urinals, and, other sanitary appliances. The
appliance for conveying water from the cistern consists of a cylinder and syphon
cast in one piece with screw and collar attached to leg of syphon by which means
the discharging apparatus is secured to cistern with a screwed backnut, allowing
sufficient length of screw to connect the nut and lining to down pipe to pan of
closet urinal or other sanitary appliance Through the centre of cylinder passes a
spindle or rod fitted with small rubber collar top and bottom thereby making the
action perfectly silent such rod being screwed to a round flat bottomed plate
displacer concave on upper side resting at the bottom of the said cylinder and
secured by means of a knuckle joint attached to end. of spindle rod and lever pull,
on pulling such lever chain or handle the displacer is brought to its position at the
face of bush inside top of cylinder the water in cylinder having been displaced
over the syphon creates a vacuum by which means in conjunction with the
atmospheric pressure the displacer is kept at its top position causing the cistern to
discharge the whole contents of water with great and increasing velocity and gives
a perfect flush to the pan and immediately after discharge the displacer falls by its
own weight to bottom position and the rubber collar on top of spindle rod striking
against face of bush on external part of cylinder renders the action of the displacing
apparatus perfectly silent as previously described and also a perfect Water Waste
preventer as the water must again be displaced to procure another flush The
displacer being somewhat smaller than the internal diameter of cylinder allows
the water to pass freely thro' 'the cylinder and over the syphon and it is not
necessary to hold the handle chain or lever to ensure the proper, flushing of closet
as the syphon is instantly set in motion by pulling the handle chain or lever.
I cast the cistern with sloping sides and rounder corners as a preventative against
frost also lugs at each side for the convenience of fixing," and by carrying the
syphon above top of cistern to ensure it not acting as an overflow or waste pipe
I raise a portion of the lid to clear the syphon bend as shown on accompanying
drawing the working parts of this cistern are considerably less the construction is
simpler and the friction in raising water less than in those cisterns constructed on
the syphon principle in which the water is pressed down therefore my silent syphon
arrangement is not liable to get out of order as I entirely dispense with suction
valves hinge valves and rubber appliances for discharging the content of cistern
I also fit my cistern with an improved horizontal ball valve to which I attach to
the outlet a vertical tube extending downward to within half an inch of bottom
of cistern to prevent the very objectionable sound that is caused when the supply
AVERY
201
•

page_text: is on high pressure as the outlet at end of pipe attached to ball valve is so near
bottom of cistern that it is immediately covered on the water entering cistern
thereby making the supply valve in addition to displacing apparatus previously
described perfectly silent.
Referring to the Drawing accompanying my provisional senecification.
is on high pressure as the outlet at end of pipe attached to ball valve is so near
bottom of cistern that it is immediately covered on the water entering cistern
thereby making the supply valve in addition to displacing apparatus previously
described perfectly silent.
Referring to the Drawing accompanying my provisional sepecification
Letter A shows the cistern.
a
a¹
"
cover.
raised part for bend of syphon.
fastening for cover of cistern.
lugs for fixing.
"
,,
a²
"
"
a¹
"
B
33
"
33
lever.
20 APEIRO
»
"
3
"
"
hole & slit in cover for lever to work thro'.
cylinder.
dished displacer.
fulcrum. point.
bush for spindle to work thro'.
inlet from main water supply.
silencing tube for inlet.
ball,
"
lever to valve.
fulcrum for do.
f
"
"
G
"
syphon.
כל
"
double slotted piece for spindle and lever.
overflow.
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
(1.) In constructing a combined cylinder and syphon with screw attached in one
piece in syphon cisterns for flushing purposes as described and illustrated by letters
on the accompanying drawings.
(2.) In constructing a concave displacer for raising water as shown on accompanying
drawing.
(3.) In constructing on cylinder an external and internal guide bush to facilitate
action of displacer rod as shown on accompanying drawings.
(4.) The arrangement of leverage with knuckle joints connected to displacing
apparatus as shown on accompanying drawings.
(5.) Rubber collars on spindle rod to act as cushions' in contact with bush to
produce the silent action of displacing apparatus as previously described.
Dated this 28th day of April 1885.
W. J. HOLMES.