CERTAIN MACHINERY FOR THE PURPOSE OF SAWING WOOD, SPLITTING OR PARING SKINS, AND VARIOUS OTHER USEFUL PURPOSES
Year: 1808

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
NEWBERRY, of Saint John Street, in the County of Middlesex, Gentleman,
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 Thirtieth day of
January, in the forty-eighth year of His reign, give and grant unto me, the
said William Newberry, my exors, admors, and assigns, His especial licence,
full power, sole priviledge and authority, that I, the said William Newberry,
my exors, adiiors, and assigns, during the term of years therein mentioned,
should and lawfully might make, use, exercise, and vend, within England,
Wales, and the Town of Berwick-upon-Tweed, and also in all His Majesty's
Colonies and Plantations abroad, my Invention of "CERTAIN MACHINERY FOR THE
PURPOSE OF SAWING WOOD, SPLITTING OR PARING SKINS, AND VARIOUS OTHER USEFUL
PURPOSES;" in which said Letters Patent tliere is contained a proviso obliging
me, the said William Newberry, 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 after the dato
of the said recited Letters Patent, as in and by the same, relation being
thereunto had, may more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Newberry, do hereby declare that my said Invention is described

page_text: and ascertained in and by the Drawings hereunto annexed, and the following
description thereof, that is to say :-
First, my Invention consists of a method of working an endless revolving
saw blade over two dumb wheels or rollers, to be used for any of the purposes
to which a common saw may be applied. To this sort of saw a variety of
machinery may be attached for guiding the pieces to be cut, for the manner
of doing which the annexed Drawing will give an explanation.
Fig. 1.-A is a cast-iron frame to carry the wheels; B, B, are the wheels
having each an iron plate screwed behind it to prevent the saw from running
off backward; C, C, is the blade of the saw; D is a bench or platform on
which the piece to be cut is laid; E, E, are two semicircles of iron fixed
thereto, whose centres are parallel to that part of the saw blade which is even
with the top of the bench; one of these is marked with the divisions of a
circle, by which means, on turning them in the sliders, the bench may be
placed at any angle to the blade of the saw, and thero fixed by means of the
screw F; G is a guide to keep the saw from running out of its line; close
under the bench is another guide like it; H, H, are two wedges to forec down
the lower wheel so as to give the saw the necessary tension; I is the piece to
be cut, which may be brought forward to the saw either by hand or by passing
it between rollers in the well-known way now practised for drawing iron, &c.,
therefore, on causing the wheels to revolve by any moving power, the saw
continually passes through the piece till it is cut.
Fig. 2 are the guides for cutting parallel pieces from any kind of planks
or boards. A is a part of the bench, and B of the saw; C is a slider having
in the end of it any number of small rollers parallel to the saw. This slide
moves in and out at pleasure, and is fixed by a thumb screw. D is a roller
fixed to an universal joint, and pressed in by the springs E, E; therefore,
upon C being fixed at any distance from the saw, the roller D pressing the
piece close against C, a parallel piece is taken off throughout; however the
plank may be warped or twisted, if the bench is elevated so as to cause
the rollers in C to form an angle with the saw, a feather-edged picce is taken
off. If any shape not much out of a line is wanted, it may be cut by laying
a pattern by the side of the piece, see Fig. 3. A is the piece to be cut; then
by laying on the pattern B and fixing the rollers in C, Fig. 2, the saw will pass
the dotted line, corresponding nearly with the outside of B.
Fig. 4 is a guide for cutting circles of all sizes. A is a part of the bench,
and B of the saw; C is a socket sliding on a rod, which is marked so that
the center of the intended circle is immediately determined from it: D is a
rod and pair of claws turning on a centre to guide the piece to be cut, then,

page_text: by fixing the socket C at the proper distance from the saw, the piece is passed
up to the saw in the required circle.
Secondly, for splitting or paring of skins, the two wheels are laid level
instead of being over each other, and an endless knife is worked upon them,
to which is affixed two whetstones, one above and the other below it, so as to
sharpen the knife as it goes; it is used with the rollers, &c. of a common skin
splitter. The plate of steel for the saw or knife may have its two ends
rivetted and brazed together, or they may be shut before it is brought to its
thinness, and drawn down afterwards. Although I have described the saw or
knife in the way I have made it, yet it may be put in a variety of other forms,
either by working it over one roller with the assistance of slides, or over more
than two rollers; or it may be kept on the rollers by pegs or stubs on
them with corresponding holes in the saw; the framing may likewise be made
in a variety of shapes of wood or metal, but the one here described answers
every purpose.
In witness whereof, I, the said William Newberry, have hereunto set
my hand and seal, the Twenty-ninth day of February, in the year of
our Lord One thousand eight hundred and eight.
WILLIAM NEWBERRY. (L.S.)
AND BE IT REMEMBERED, that on the Twenty-ninth day of February,
in the year of our Lord 1808, the aforesaid William Newberry 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 tenor of the Statute made for that purpose.