CERTAIN IMPROVEMENTS IN THE MODE OR MANNER OF SAWING AND CUTTING WOOD AND TIMBER BY MACHINERY
Year: 1825

page_text: SAYNER & GREENWOOD'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GEORGE
SAYNER, of Hunslett, in the Parish of Leeds, in the County of York, Dyer,
and JOHN GREENWOOD, of Gornersall, in the said Gounty, Machine Maker,
send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by. His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Eleventh day of January, in the fifth year of His
reign, did, for Himself, His heirs and successors, give and grant unto us,
the said George Sayner and John Greenwood, His especial licence that we,
the said George Sayner and John Greenwood, our exors, admors, and assigns,
or such others as we, the said George Sayner and John Greenwood, our
exors, adñiors, or assigns, should at any time agree with, and no others,
from time to time and at all times during the term of years therein
expressed, should and lawfully might make, use, exercise, and vend, within
England, Wales, and the Town of Berwick-upon-Tweed, our Invention of
"CERTAIN IMPROVEMENTS IN THE MODE OR MANNER OF SAWING AND CUTTING
WOOD AND TIMBER BY MACHINERY;" in which said Letters Patent there is
contained a proviso obliging us,the said George Sayner and John Greenwood,
by an instrument in writing under our hands and seals, or under the hand and
seal of one of us, particularly to describe and ascertain the nature of our said

page_text: Invention, and in what manner the same is to be performed, and to cause the
same to be inrolled in His Majesty's High Court of Chancery within six
calendar months next and immediately after the date of the said in part
recited Letters Patent (as in and by the same), reference being thereunto had,
will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
George Sayner, do hereby declare that the nature of our said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in and by the Drawing hereunto annexed, the following
description thereof (that is to say):-
Our claim for the Patent is for the combination of circular saws so arranged
that if one will not reach through a piece of timber another is so introduced
on the opposite side as to meet it half way or cut the remaining part, which
cuts off by so doing a board or plank the whole depth of the timber, and by
adding on the same shafts any number of saws a piece of timber of any
dimensions may be cut into boards of any thickness all at the same time,
the thickness of the boards to be regulated by flanges introduced between the
Baws; also by a further combination or addition of upright shafts we intro-
duce any number of saws to cut horizontally, which will then cut the piece
of timber at the same time into scantling or laths agreeable to the size of
the flanges introduced between the saws. For the purpose of sawing, cutting,
or rasping dye woods we have united circular saws into a solid body or
face on one shaft, which will then cut or rasp the whole piece of wood into
sawdust, or ground or rasped ware, the tooth of these saws to form a half
diamond shape, having a flat front cutting from the point diagonally down
to each side of the saw.
Fig. 1 is a top or bird's-eye view. Fig. 2 the side view or elevation.
Fig. 3, the side view of a circular saw for rasping or. cutting dye woods.
Fig. 4, the front view of ditto.
Description of Sawing Machine.-A's the frame. B, propelling rollers
turned by gearing or strap. C, pressing roller with lever and weights. D's
rollers for timbers or planks to roll on. E, upright rollers for ditto to roll
against. F, shafts for saws. G, circular saws on the shafts which are divided
by flanges the thickness the boards or planks are required to be cut. H, nut
and screw on the shaft end to hold the saws and flanges together. I, drum
speeded from steam engine or other power. K, straps to pulleys L, to turn
and give motion to the saws. M, an upright shaft for horizontal saws to cut
the boards into laths or plank into scantling, turned by motions same as the
other, and can be taken off at pleasure. N, a conductor for the boards to

page_text: slide through when cutting. O, the timber or plank going through the
machine.
In witness- whereof, I, the said George Sayner, have hereunto set. my
hand and seal, this Ninth day of July, in the year of our Lord One
thousand eight hundred and twenty-five..
AND BE IT REMEMBERED, that ou the Ninth day of July, in the year
of our Lord 1825, the aforesaid George Sayner 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 stamped according to the tenor
of the Statute made for that purpose.
Inrolled the Eleventh day of July, in the year of our Lord One thousand
eight hundred and twenty-five.