IMPROVEMENTS IN APPARATUS FOR FEEDING PAINTS ON THE STONE OR STONES ON WHICH THEY ARE TO BE GROUND
Year: 1867

page_text: LETTERS PATENT to John Paulin and Robert Davison Paulin, of New-
castle-on-Tyne, in the County of Northumberland, Engineers, for the
Invention of "IMPROVEMENTS IN APPARATUS FOR FEEDING PAINTS ON THE
STONE OR STONES ON WHICH THEY ARE TO BE GROUND."
Sealed the 25th February 1868, and dated the 29th August 1867.
PROVISIONAL SPECIFICATION left by the said John Paulin and Robert
Davison Paulin at the Office of the Commissioners of Patents, with their
Petition, on the 29th August 1867.
We, JOHN PAULIN and ROBERT DAVISON PAULIN, of Newcastle-on-Tyne,, in
the County of Northumberland, Engineers, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN APPARATUS FOR FEEDING PAINTS ON
THE STONE OR STONES ON WHICH THEY ARE TO BE GROUND," to be as follows:-
We make a receiver for the paint of any convenient size, form, and
material within which and at the bottom thereof is a knife (by preference.
double curved) revolving on its spindle. At the side of said receiver is an
opening with arrangements for closing the same to a greater or less extent as
may be desired. The knife during revolution pushes some of the paint
through the opening in the side of the receiver into a box of any convenient

page_text: form, size, and material. Another knife moved by a crank or any other
convenient contrivance at the proper time cuts off that portion of the paint
which projects from the receiver into the box, and in travelling back to its
former position carries such portion of paint to a position immediately over or
communicating with the eye of the stone, and provision is made for raising
the knife preparatory to its being moved again towards the receiver and so
that the paint is dropped, which falls or is conveyed into the eye of the
stone.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Paulin and Robert Davison Paulin in the Great Seal
Patent Office on the 29th February 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
PAULIN and ROBERT DAVISON PAULIN, of Newcastle-on-Tyne, in the 'County of
Northumberland, Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of August, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said John Paulin and Robert Davison Paulin, Her. special licence that we,
the said John Paulin and Robert Davison Paulin, our executors, adminis-
trators, and assigns, or such others as we, the said John Paulin and Robert.
Davison Paulin, our executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
APPARATUS FOR FEEDING PAINTS ON THE STONE OR STONES OR ANY OTHER MATERIAL
ON WHICH THEY ARE TO BE GROUND," upon the condition (amongst others) that we,
the said John Paulin and Robert Davison Paulin, our executors or adminis-
trators, by an instrument in writing under our, or their, or one of their hands
and seals; should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause
'the same to be filed in the Great Seal Patent Office within six calendar months
next and' immediately after the date of the said Letters Patent.
***NOW KNOW YE, that we, the 'said John Paulin' and 'Robert Davison
Paulin, do hereby declare the nature of our said Invention, and in what

page_text: manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
We make a receiver for the paint of any convenient size, form, and material,
within which and at the bottom thereof is a knife (by preference double
curved) revolving on its spindle; at the side of said receiver is an opening,
with arrangements for closing the same to a greater or less extent as may be
desired. The knife during its revolutions pushes some of the paint through
the opening in the side of the receiver into a box of any convenient form, size,
and material. Another knife, moved by a crank or other convenient con-
trivance, at the proper time cuts off that portion of the paint which projects
from the receiver into the box, and in travelling back to its former position
carries such portion of paint to a position immediately over or communicating
with the eye of the stone, and provision is made for raising the knife prepara-
tory to its being moved again towards the receiver, so that the paint is dropped,
which falls or is conveyed into the eye of the stone.
DESCRIPTION OF THE DRAWINGS,
and of the details of the Invention thereby illustrated.
a, a, receiver for the paint; b, revolving knife; c, spindle with which knife
revolves; d, opening in the side of receiver; e, hand wheel for working the
sliding plate or door regulating the opening in the side of receiver; f, screw
attached to hand wheel; g, sliding plate or door attached to screw and hand
wheel, and regulated by hand wheel e and screwf; h, box into which the
paint is pushed through opening d; i, knife for cutting off the paint which
projects from the opening d of the receiver a, a, into the box h, and for
carrying it (the paint cut off) over the eye of the stone; j, frame carrying
knife i and the contrivance for raising or lowering it; k, slot in frame j;
7, crank working on spindle c; m, crank pin working in slot k, and thereby
moving the frame j carrying the knife i along the rods as hereafter described;
n, n, the said rods along which the frame j (carrying the knife i and con-
trivance for raising and lowering it) slides; o, rack attached to knife i; p,
toothed segment working in rack o, and thereby raising or lowering the knife i;
4. spindle working in bearings on the frame j, on which the toothed segment p
is free to turn; r, projection attached to the spindle q; s, catch pieces against
which the projections strike, thereby raising ог lowering the knife i; t, screws
for securing the catch pieces s to the box h, and setting them so as to regulate
the amount of rise and fall of the knife i.
Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed, we hereby

page_text: declare that we claim the Invention of "Improvements in Apparatus for
Feeding Paints on the Stone or Stones on which they are to be Ground, as
herein-before set forth and described, it being understood that we do not claim'
the constituent details of construction per se, and apart from the purposes of
the said Invention as above stated.
In witness whereof, we, the said John Paulin and Robert Davison
Paulin, have hereunto set our hands and seals, this 28th day of
February, in the year of our Lord One thousand eight hundred and
sixty-eight.
Witness,
THOMAS OSWALD NESBIT.
JOHN PAULIN.
(L.S.).
ROBERT DAVISON PAULIN. (L.S.)