IMPROVEMENTS IN MACHINERY OR APPARATUS FOR SAWING STONE AND MARBLE AND GRANITE, OR SIMILAR MATERIALS
Year: 1874

page_text: LETTERS PATENT to Richard Cox, of Weymouth, in the County of
Dorset, Engineer, for the Invention of "IMPROVEMENTS IN MACHINERY
OR APPARATUS FOR SAWING STONE AND MARBLE AND GRANITE, OR SIMILAR
MATERIALS."
Sealed the 23rd October 1874, and dated the 13th May 1874.
PROVISIONAL SPECIFICATION left by the said Richard Cox at the
Office of the Commissioners of Patents, with his Petition, on the
13th May 1874.
I, RICHARD Cox, of Weymouth, in the County of Dorset, Engineer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR SAWING STONE AND MARBLE AND GRANITE, OR
SIMILAR MATERIALS," to be as follows :-
This Invention relates to certain improvements in or applicable to
machinery or apparatus for sawing stone and marble and granite or
similar materials, and the said improvements consist,―
°
First. Of an improved method of driving or actuating the ordinary
saw frame

page_text: Second. Of an improved method of supporting the said saw frame.
And, Third. Of an improved method of regulating the lowering of the
said saw frame to its work.
My improved method of driving or actuating the saw frame consists
in fixing to the rear of each back post of the usual timber framing and
to the usual foundation plate a bracket or bearing, and in applying to
these brackets a two-crank shaft, and in connecting each of these cranks
to one end of a connecting rod, and in connecting the other ends thereof
each to the exterior of one of the longitudinal sides of the saw frame
at a point midway between its extremities, and in placing on each or
either end of the said crank shaft a fly wheel or pulley, and in com-
municating motion thereto by a strap actuated by an engine or any
suitable ordinary prime mover, the result of which will be that the saw
frame will receive a to-and-fro or longitudinal reciprocating motion.
"
My improved method of supporting the saw frame consists in carrying
or resting the same upon friction rollers or rubbing blocks working on.
horizontal bars kept in place by suitable "rubbers or guide plates,
and suspended by chains from barrels on the usual top shaft in the usual
way.
And lastly, my improved method of regulating the lowering of the
saw frame to its work consists in applying a brake consisting of a
weighted lever to one of the longitudinal timbers of the usual framing
in such a manner that one end of the said lever shall be caused by the
said weight to bear against a brake wheel which I place upon the above-
mentioned top shaft.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard Cox in the Great Seal Patent Office on
the 4th November 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
Cox, of Weymouth, in the County of Dorset, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of May, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-.

page_text: seventh year of Her reign, did, for Herself, Her heirs and successors
give and grant unto me, the said Richard Cox, Her special licence that
I, the said Richard Cox, my executors, administrators, and assigns, or
such others as I, the said Richard Cox, my 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 MACHINERY OR APPARATUS
FOR SAWING STONE AND MARBLE AND GRANITE, OR SIMILAR MATERIALS," upon the
condition (amongst others) that I, the said Richard Cox, my executors.
or administrators, by an instrument in writing under my, 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 Scal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said Richard Cox, do hereby declarc
the nature of the said Invention, and in what manner the same is to be
O performed, to be particularly described and ascertained in and by the
following statement in writing, and on reference being had to the accom-
panying Sheet of Drawings, that is to say :-
-
This Invention relates to certain improvements in or applicable to
machinery or apparatus for sawing stone, marble, granite, or similar
5 materials, and the said improvements consist,-
(1). Of an improved method of driving or actuating the ordinary-
saw frame.
(2). Of an improved method of supporting the said saw frame.
And (3). Of an improved method of regulating the lowering of the
said saw frame to its work.
Such being the nature and objects of my said Invention I will now
proceed to describe more in detail the manner in which the same is to be
or may be performed or carried into practical effect, and in order that
the description thereof may be completely understood, I have annexed
5 hereunto one Sheet of illustrative Drawings, and have marked the same

page_text: with Figures of reference corresponding with those in the following
explanation thereof, that is to say:-
On the accompanying Sheet of Drawings, Figure 1 represents a side
elevation; Figure 2, an end elevation; Figure 3, a sectional plan view;
and Figure 4, a perspective view of the stone sawing machinery as
adapted to my present improvements.
In order to carry the first object of my Invention into effect I fix to
the rear of the back posts 1 of the usual timber framing 2 and to the
usual foundation plate 3 two brackets or bearings 4 carrying a two-crank
shaft 5, the cranks 6 of which are connected to the outer ends of two
connecting rods 7, which at their other ends are connected to the exterior
parts of the longitudinal sides of the usual saw frame 8 at points midway
between its extremities. On one end of the shaft 5 I place a weighted
fly wheel 25, and on the other end I place a pulley 26, to which I
communicate motion from an engine or any suitable ordinary prime
mover.
To attain the second object of my Invention I carry or rest the saw
frame 8 upon or I affix to its sides four or more friction slicaves 9, which
run or work on horizontal guide bars 10 risen at either end to give the
saws their proper feed, and which are kept in place by suitable guide
plates 11 (affixed to the inner sides of the front and rear vertical posts
of the framing 2), and are suspended by chains 12 from the usual barrels
13 of the usual top shaft 14.
And to effect the third object of my Invention I affix to one of the
longitudinal timbers of the usual framing 2 a pivot or fulcrum 15 for a
lever 16, one end of which carries an adjustable weight 17 (or is acted
upon by a spring or equivalent appliance, and causes its other end to
bear against and act as a brake upon a brake wheel 18, which I key
upon the shaft 14.
To allow of the frame 8 being lifted the brake power is removed from
the wheel 18 by actuating a handle 19 made fast to a cross shaft 20,
which at its other end is provided with a lifting crank 21, which lifts the
weighted end of the lever 16.
The lowering or depressing of the frame 8 is effected as usual from
the toothed wheel 22 and piniou 23, which are actuated by the hand
wheel 24,

page_text: The wagon to bear the stone is made of iron and runs on a light
tramway 27 fixed to or resting upon the bottom of the framing 2 so as
to concentrate the whole weight upon the machine.
These machines, as above adapted, may be made to any size, either as
fixtures or portable, and mounted upon small travelling wheels.
Having now particularly described and ascertained the nature and
objects of my said Invention, together with the manner in which the
same is to be or may be performed or carried into practical effect, I
would remark in conclusion that I claim as my Invention the above
described improvements and their application to machinery or apparatus
of the class specified, substantially as in the manner and for the purposes
above set forth and as illustrated on the accompanying Sheet of Draw-
ings, and especially I claim,-
Firstly. The combination of the bearings 4, crank shaft 5, cranks 6,
connecting rods 7, fly wheel 25, and pulley 26, and their application,
substantially as and for the purpose specified.
Secondly. The combination of the saw frame 8, runners 9, guide bars
10, guide plates 11, and chains 12, and their application, substantially
as and for the purpose specified.
And, Thirdly. The combination of the fulcrum 15, weighted lever 16,
brake wheel 18, handle 19, cross shaft 20, lifting crank 21, and their
application, substantially as and for the purpose specified.
In witness whereof, I, the said Richard Cox, have hereunto sct
my hand and scal, this Twenty-third day of October, in the
year of our Lord One thousand cight hundred and seventy-
four.