IMPROVEMENTS MOD LOFTLY VERY
Year: 1856

page_text: LETTERS PATENT to John Wordsworth Robson, of Grundy Street, Poplar
New Town, Middlesex, Engineer, for the Invention of "IMPROVEMENTS
MOD
LOFTLY VERY
!
COMPLETE SPECIFICATION filed by the said John Wordsworth Robson
at the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 21st January 1856, pursuant to the 9th Section of
the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WORDSWORTH ROBSON, of Grundy Street, Poplar New Town, Middlesex,
Engineer, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
MACHINERY APPERTAINING TO WATER-CLOSETS AND PUMPS," and have petitioned
Her Majesty to grant unto me, my executors, administrators, and assigns,
Her Royal Letters Patent for the same, and have made solemn declaration
thereof, that I verily believe myself to be the true and first Inventor thereof:
NOW KNOW YE, that I, the said John Wordsworth Robson, do hereby
declare that the following complete Specification, under my hand and seal,
fully describes and ascertains the nature of my said Invention, and the manner
in which the same is to be performed, viz*:-
The nature of my said improvements consists in, first, two tubes and a
cylinder cast in one piece, as shewn in A, A, A, in elevation No. 1, the same

page_text: being open at the top; the valves and seats B, B, when soldered in their
places, as shewn in elevation No. 1; the plates 2, 2, 2, are then soldered to
inclose the tube and valves. The basin or receiver is then secured by three
bolts C, C, as shewn in elevation No. 1; No. 3, in ground plan, is a union
joint, by which the soil pipe is attached thereto, as shewn in elevation No. 2;
No. 4 is a conical cylinder, with ingress from No. 1 tube, as shewn in ground
plan and egress through No. 2 tube, as shewn in elevation No. 2; No. 5 is a
counterbalance weight for forming a piston, by which the diaphragm No. 6 is
worked; No. 7 is a piston rod attached thereto. When the piston rod is.
raised, the diaphragm is reversed, drawing the soil and water from the basin in
elevation No. 1 through the tube No. 1 in ground plan, and forced through
the egress tube No. 2, as shewn in elevation. No. 2; No. 8 is a bottom plate;
8,.8, is a plate and screw by which the same, is secured thereto.
The second portion of my improvements consists in the manufacture of a
diaphragm, as shewn No. 6,, in elevation No. 1, by which a vacuum is pro-
duced answering all the purposes of a solid piston. This diaphragm is formed
of leather, india-rubber, and gutta percha. The leather is first deprived of all
dressing or oily substance by being placed in a solution of caustic alchali, is
then moulded into its proper form, and when dry, immersed in a solution of
india-rubber or gutta percha, or a substance of each may be placed above and
below or between as many thicknesses of leather as may be required to give
additional strength to the same.
The third portion of my improvements consists in a self-acting service for
water-closets, as shewn in elevation No. 2. No. 1 is a moveable seat to which
the lever No. 2 is attached; No. 3 is a metallic tube worked by lever No. 2;
No. 4 is a flexible tube of india-rubber or gutta percha or any other flexible sub-
stance; No. 5 is a small diaphragm, by which the metallic tube is attached to
the cistern No. 6; No. 7 is a long spindle, to which two valves are attached,
one internal and the other external of the intermediate cistern No. 6; No. 8
is the service pipe for the supply of water thereto from the cistern No. 9, as
shewn in elevation No. 2. When the closet is used, the seat No. 1 moves the
lever No. 2, raising the tube No. 3 to the valve of the spindle No. 7, thereby
cutting off the service leading to No. 4, opening an entrance from the pipe
No. 8 to the cistern No. 6, allowing the lower cistern to be filled from the
cistern above. In leaving the closet the seat returns to its original position
allowing the upper valve to close, cutting off the supply from No. 8, and
allowing the water contained in cistern No. 6 to pass through the metalli
tube No. 3, and the flexible pipe No. 4, so as thoroughly to cleanse the closet
'as shewn in elevation No. 2.

page_text: These are improvements on my water-closet, patented April the Third, One
thousand eight hundred and forty-one, by which a saving of 55 per cent. is
secured to the public, and by which I render the diaphragm or pump depart-
ment perfect, which before was made of a single thickness of leather.
My first claim for improvements in my water-closet is for the conical
cylinder with ingress and egress tubes cast, on the side thereof, thereby doing
away with bed plates, screws, &c., as used in my former Invention.
Secondly, for the manufacture of diaphragms No. 6, as shewn in Drawing,
rendered impervious to air and water, and by which strength may be secured
for any pressure.
Thirdly, I claim the whole of the arrangement of the self-acting service in
all its parts, as shewn in Specification and Drawings.
In witness whereof, I, the said John Wordsworth Robson, have hereunto
hand and seal, this Twenty-first day of January, in the year of
our Lord One thousand eight hundred and fifty-six.
set my
JOHN WORDSWORTH ROBSON. .(L.S.)