IMPROVEMENTS IN MACHINERY POR CUTTING OR SAWING MARBLE AND OTHER STONES
Year: 1843

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HUTCHISON, of Ivy Bridge Lane, Strand, in the County of Middlesex, Marble
Merchant, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Thirteenth day of July, in the seventh year of Her reign, did,
for Herself, Her heirs and successors, give and grant unto me, the said
William Hutchison, Her especial license, full power, sole privilege and autho-
rity, that I, the said William Hutchison, my exors, admors, and assigns, or such
others as I, the said William Hutchison, my exors, adññors, 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, my Invention of "IMPROVEMENTS IN MACHINERY POR CUTTING OR
SAWING MARBLE AND OTHER STONES;" in which said Letters Patent is contained
a proviso that I, the said William Hutchison, shall cause a particular descrip-
tion of the nature of my said Invention, and in what manner the same is to
be performed, to be inrolled in Her said Majesty's High Court of Chancery

page_text: within six calendar months next and immediately after the date of the sand 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
William Hutchison, do hereby declare that the nature of my said Invention,
and the manner in which the same is performed, are fully described and
ascertained in and by the following statement thereof, reference being had
to the Drawings hereunto annexed, and to the figures and letters marked
thereon, that is to say :-
According to the ordinary manual system of cutting or sawing of marble or
other stones, it is necessary to employ a practical sawyer to work the saw, the
heavy construction of which renders this work very laborious, and it requires
much skill and judgment to drive or work the saw upright and true, the saw
being kept in position by the physical strength of the sawyer, by which systen
the cutting or sawing of marble or other stones is rendered expensive and
generally imperfect. Many attempts have been made, at great cost, to
introduce steam machinery for cutting or sawing of marble or other stones,
which has not, so far as I am informed of the subject, proved so beneficial as
was anticipated, and many practical persons object to avail themselves of steam
cutting or sawing of marble or other stones, as they consider that the reduction
off the price of sawing by the old manual system is not equivalent to tho
labor required for closing the surfaces of the marble for the polisher or
laborer, and the extra capital employed to keep an assorted stock of marble
slabs of all dimensions and thickness. Stone is hardly ever cut or sawed by
steam power, as it is generally used in more solid substances than marble, and
also on account of the probability of the saws coming in contact with flints
through which the saws could not cut, and hard colored marbles are also cut
by the old method of hand sawing, owing to shells and other hard matter
found therein. Good statuary marble, I believe, is never cut by steam power,
as the vibrating movement stuns and renders the surfaces of the slabs coarse.
Now, the object of my Invention is, simply a mode of applying or using a saw
guide, set perpendicularly over the cut or cuts to be made in the block under
the machines, which is moved horizontally by a screw or screws, that is, back-
wards and forwards, or vertically, that is, up and down, as the case may be, to
suit the position and size of the block of marble or other stone wherein the
saw or saws framed is or are worked, and guided thereby backwards and
forwards, which is and are balanced by a weight to that degree suspended by
a pulley or pulleys perpendicularly over the cut or cuts to raise the saw or
saws to allow the sand to fall between the marble and saw or saw plates, by

page_text: which means the cutting or sawing is continual and regular, and the surfaces
of the marble or stone are not stunned or rendered coarse, consequently leaving
little or no labor to the polisher or laborer to "close" the surfaces of the
said marble or stone. By my Invention, as seen and described in Drawings,
any laborer or strong youth, at common wages, can drive or work one or more
saws with perfect ease, and cut or saw a slab or slabs of marble or other stones
with accuracy.
DESCRIPTION OF THE DRAWINGS.
Figure 1, elevation; Figure 2, end view; Figure 3, transverse section;
Figure 4, ground plan. A is the framework. B, roof or covering. C repre-
sents the saw guide, which is capable of being raised and lowered by screws D,
and also adjusted laterally by screws E. The saw guide rests upon and is
guided by the cross rails X, which rails rest upon the moveable pins Z.
F, frame saw of the ordinary construction for hand sawing, which is moved
backwards and forwards and guided by the saw guide C. G, moveable pulley
with suspended weight to relieve the heaviness of the saw or saws and tackle
to allow the sand to run under the saw or saw plates, such pulley being
attached to a ring which slides freely on the bar M above. H and I wooden
moveable rails resting on iron pins Z', these rails having holes to allow
vertical screws D to work through to raise or lower the saw guide C.
J, J, are friction rollers to the saw frame to facilitate its movement between
the saw guide C.
Having thus described the nature of my Invention, and the manner of
performing the same, I would remark that I do not confine myself to the
precise details shewn, provided the peculiar character of my Invention be
retained; but what I claim is, the mode of guiding saws worked by hand, by
means of saw guides and apparatus combined therewith, as herein described;
and also the moving of the guides laterally by screws, and the mode of raising
or lowering the same by screws, as shewn.
I also claim the application of friction rollers, as shewn.
And, lastly, I claim the mode of suspending a pulley that it may move with
the saw guide.
In witness whereof, I, the said William Hutchison, have hereunto set my
hand and seal, this Thirteenth day of January, in the year of our Lord
One thousand eight hundred and forty-four.
WILLIAM (1.S.) HUTCHISON.

page_text: AND BE IT REMEMBERED, that on the Thirteenth day of January, in the
year of our Lord 1844, the aforesaid William Hutchison came before our said
Lady the Queen in Her Chancery, and acknowledged the Specification afore-
said, 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.
Enrolled the Thirteenth day of January, in the year of our Lord One
thousand eight hundred and forty-four.