CERTAIN IMPROVEMENTS IN THE MODE OF GIVING MOTION TO HAM- MERS, STAMPERS, KNIVES, SHEERS, AND OTHER THINGS WITHOUT THE APPLICATION OF WHEEL PINIONS, OR ANY RELATIVE MOTION, BY MEANS OF VARIOUS POWERS NOW IN COMMON USE
Year: 1806

page_text: TO ALL TO WHOM WHOM THESE PRESENTS SHALL COME, I,
WILLIAM DEVERELL, of Charles Street, Blackfriars Road, in the Parish of
Christchurch and County of Surrey, Engineer, send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Sixth day of June, in
the forty-sixth year of His reign, give and grant unto me, the said William
Deverell, my exors, adiñors, and assigns, His especial licence, that I, the
said William Deverell, my exors, adñññors, and assigns, should and lawfully
might, during the term of years therein mentioned, make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, my
Invention of "CERTAIN IMPROVEMENTS IN THE MODE OF GIVING MOTION TO HAM-
MERS, STAMPERS, KNIVES, SHEERS, AND OTHER THINGS WITHOUT THE APPLICATION OF
WHEEL PINIONS, OR ANY RELATIVE MOTION, BY MEANS OF VARIOUS POWERS NOW IN
COMMON USE;" in which said Letters Patent there is contained a proviso obliging
me, the said William Deverell, by an instrument in writing under my hand
and seal, to cause a particular description of the nature of my said Invention,
and in what manner the same is to be performed, to be inrolled in His
Majesty's High Court of Chancery, within one calendar month next after the
date of the said recited Letters Patent, as in and by the same, relation being
thereunto had, may more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
William Deverell, do hereby make known and describe my said modes or
methods of giving motion to the aforesaid things, and how the same is to be
performed, as follows, that is to say :-
First, I raise steam in a boiler or steam vessel as in the common way.
I have a steam cylinder with a piston and rod in it. At the end of the rod
that comes out of the steam-cylinder is a hammer, cither made fast to the
rod by welding or in any other proper way. The steam from the boiler or
steam vessel as aforesaid is let.in underneath. the piston by. means of opening
a cock or valve cr cocks-or-valves.; the air at the top of the piston will
be then compressed by the superior pressure of the steam underneath the
piston. After the piston has been raised to a given height there will be an
opening made from the under side of the piston to a vacuum formed as in the
common way, or otherwise the steam may be let out into the common air;
the compressed air on-the-top-of-the-piston will then drive down the hammer
with a valocity equal to what it may be compressed. There may be a vessel-
partly full of water, the top of which is made to communicate with the cylinder
at the upper side of the piston; there should be valves or cocks, or some other
proper contrivance to adjust the water, so as the air may be compressed as
the velocity of the hammer may require. The hammer may be worked by
steam or some other spring that will answer the intended purpose, or by
steam alone. The weight of the hammer- may be made equal to the pressure
of the steam, so-as-to-work without springs. The weight of, the hammer may
be regulated as necessity requires, by taking one hammer off and putting-on
another of a different size. The hammer may have. a stilt to it, and the
piston may be made fast-to-the-hammer_or the stilt, as occasion may require,
or otherwise there may be a lever or levers; either of. these may be attached
to the piston rod, so as to give motion to the hammer or hammers, as more
may bo worked than one-in-this way. There may be hammers worked from
both ends of the cylinder, as the piston rod or rods may come out -at-cach-
end of the cylinder, and the air. may be compressed in the cylinder or any
other convenient vessel or vessels. The hammer or hammers may have.
motion given to them by the piston rod, without being connected one with
the other, by striking on the back part of the hammer, stilt, or otherwise, by
lifting underneath the stilt at the hammer end of the same; but this may be
done in various other ways not necessary here to be described. The stampers
may be worked in the same manner as the hammers. The mode or method
I make use of to work presses is as follows:-I have a lever or compound.
levers, with one end-of the-lever-or-levers working on a fulcrum or joint, with

page_text: the piston rod attached to one end of the said lever or levers, and as the
steam is let on the piston from the steam boiler it will lift or compress the
lever or levers as may be required. The lever or levers may be fixed so as
to work perpendicularly, horizontally, or in any other required direction. The
shape, size, or form of the press may be varied agreeable to existing circum-
stances. The knives may be made fast to the piston rod, or any convenient
thing connected with the piston rod, or otherwise the piston rod may be
made fast to the lever or levers of the knife or knives, or other levers may
be used, if found necessary, so as to work the knives; but those knives may
be fixed in various other ways so as to chip fustick, logwood, and other woods,
and may
also be fixed to any proper thing which will work to and again by
the piston rod being attached to some part thereof. The shears may be
worked by the piston rod being attached to the end of the shears' lever, or
there may be a second lever, or more, if required, so that the piston rod may
be attached to some convenient part thereof in order to give motion to the
shears. I also apply the above mode for the working or giving motion to
bellows. In that case the piston rod may be attached or made fast to the
back part of the bellows, or separate levers may be made use of, which may
be made fast to any convenient part of the bellows.
In the above I have given a plain and clear description of the nature of my
Invention, and what I conceive will be fully sufficient to enable any intelligent
workman to carry the same into complete effect.
In witness whereof, I, the said William Deverell, have hereunto set my
hand and seal, the Fifth day of July, in the year of our Lord One
thousand eight hundred and six.
WM DEVERELL.
(L.S.)
AND BE IT REMEMBERED that on the Fifth day of July, in the year
of our Lord 1806, the aforesaid William Deverell came before our said Lord
the King in His Chancery, and acknowledged the Specification aforesaid, and
all and every thing therein contained and specified, in form above written.
And also the Specification aforesaid was stampt according to the form of the
Statute made for that purpose.
Inrolled the Fifth day of July, in the year of our Lord One thousand