IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DRESSING OR WORKING STONE
Year: 1870

page_text: LETTERS PATENT to William Brass, of Old Street, St. Luke's, and
Pinder Hackworth, of Albert Street, Penton Street, Islington, both
in the County of Middlesex, for the Invention of "IMPROVEMENTS IN
"
PROVISIONAL SPECIFICATION left by the said William Brass and
Pinder Hackworth at the Office of the Commissioners of Patents,
with their Petition, on the 17th February 1870.
We, WILLIAM BRASS, of Old Street, St. Luke's, and PINDER
HACKWORTH, of Albert Street, Penton Street, Islington, both in the
County of Middlesex, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DRESSING OR WORKING
STONE," to be as follows:-
:-
The Invention has for its object improvements in machinery or
apparatus for dressing or working stone, and relates to means for producing
the beds or joints or other surfaces of stones. For this purpose we
employ a horizontal bed or table upon which the stone to be worked is

page_text: supported and firmly secured between suitable adjustable fences and.
dogs or screws. A. rotating disc mounted on the end of a horizontal axis
and working with its face in a vertical plane acts upon the stone which
projects over the edge of the bed or table, for that purpose a suitable
quantity of sand and water being applied in any convenient manner
between the surface of the disc and that of the stone to be worked. The
axis carrying the rotating disc has rotary motion given thereto by
preference from a pulley mounted on a countershaft receiving motion
by a strap or band from a steam engine or other suitable power. The
bed or table upon which the stone is supported and held is capable of
being moved to and fro on a stationary bed or frame by means of
suitable gearing acted upon by_a_hand_wheel_placed-in-a-suitable-
position to be acted upon by the attendant. If desired the bed or
table may be caused to traverse to and fro across the surface of the disc,
and in some cases two beds or tables may be used with one disc.
By these means we are enabled to produce the beds or joints or other
surfaces of stones more accurately and in less time than when working
in the modes heretofore adopted.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Brass and Pinder Hackworth in the Great
Seal Patent Office on the 17th August 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
BRASS, of Old Street, St. Luke's, and PINDER HACKWORTH, of Albert
Street, Penton Street, Islington, both in the County of Middlesex, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of February, in the
year of our Lord One thousand eight hundred and seventy, in the
thirty-third year of Her reign, did, for Herself, Her heirs and succes-
sors, give and grant unto us, the said William Brass and Pinder
Hackworth, Her special licence, that we, the said William Brass and
Pinder Hackworth, our executors, administrators, and assigns, or such
others as we, the said William Brass and Pinder Hackworth, our
executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during

page_text: 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 DRESSING OR WORKING STONE,"
upon the condition (amongst others) that we, the said William Brass
and Pinder Hackworth, our executors or administrators, by an
instrument in writing under our, 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 Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Pinder Hackworth, on behalf of
myself and the said William Brass, do hereby declare the nature of our
said Invention, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement
thereof, that is to say:-
The Invention has for its object improvements in machinery or
apparatus for. dressing or working stone, and relates to means for
producing the beds, or joints or otlier surfaces of stones. For this
purpose we employ a horizontal bed. or table upon which the stone to be
worked is supported and firmly secured between suitable adjustable fences
and dogs or screws.. A rotating disc mounted on the end of a horizontal
axis and working with its face in a vertical plane acts upon the stone
which projects over the edge of the bed or table for that purpose, a
suitable quantity of sand and water being applied in any convenient
manner between the surface of the disc and that of the stone to be
worked. The axis carrying the rotating disc has rotary motion given
thereto, by preference from a pulley mounted on a countershaft receiving
motion by a strap or band from a steam engine or other suitable power.
The bed or table upon which the stone is supported and held is capable
of being moved to and fro on a stationary bed or frame by means of
suitable gearing acted upon by a hand wheel placed in a suitable position
to be acted upon by the attendant. If desired the bed or table may be
caused to traverse to and fro across the surface of the disc, and in some
cases two beds or tables may be used with one disc. By these means we
are enabled to produce the beds or joints or other surfaces of stones more
accurately and in less time than when working in the modes heretofore
adopted.

page_text: And in order that our said Invention may be more clearly understood
and readily carried into effect, we will proceed, aided by the accompanying
Drawings, more fully to describe the same.
Figure 1 is a side view, Figure 2 is a plan, and Figure 3 is an end
view of machinery or apparatus for dressing or working stone constructed
according to our Invention.
A is a rotating iron or steel disc, which is mounted on one end of a
horizontal axis b, and has its face working in a vertical plane; motion is
given to this rotating disc from_the_axis_c_by_means-of-the-toothed-
wheels c', 6', whilst the shaft or axis c receives motion by a strap or band
acting upon
the pulley c or by other suitable means. d is the bed or table
upon which the stone under operation is supported and held between the
fences e, f, and such fences are capable of adjustment to facilitate the
production of surfaces at various angles. When working the faces or
joints of stones at other angles than a right angle, the fences e, f, arc
raised above the table or bed d, so that the inverted V guides e¹, ƒ¹, rest
upon the surface of the bed or table d at the desired angle, when the
screws e, f, are turned by the hand wheels e³, f³, to fix the fences e, f,
in the desired position. The screws e, f, are for the purpose of
facilitating adjustment of the fences to the stone under operation. Sand
is supplied to the machine by a trough k, and water by a pipe 7. The
bed or table d is capable of being moved towards and from the disc a'a
short distance by means of a hand wheel & fixed on one end of a shaft or
axis h¹ on which is also fixed a bevilled pinion h taking into and giving
motion to a bevilled wheel ¹ fixed on the screw shaft or axis i which by
taking into a female screw a fixed to the under side of the bed or table d
gives the requisite to-and-fro motion to such bed or table.
If desired the bed or table d may be caused to move to and fro across
the rotating disc a and in some cases two beds or tables may be used
with one rotating disc, but in this latter case means would have to be
provided to hold the stone firmly down upon one of such beds or
tables.
By these means we are enabled to produce the beds or joints or other
surfaces of stones more accurately and conveniently, and in less time than
when working in the modes heretofore adopted.

page_text: Having thus described the nature of our said Invention, and the mode
in which we have carried the same into effect, we would have it understood
that we are aware a rotating disc has before been employed for a similar
purpose, but such disc has been used in a horizontal plane, and when
worked in that position forms no part of our present Invention; but
what we do claim is, the novel combination and arrangement of
machinery or apparatus for dressing or working stone in which a rotating
disc working in a vertical plane is employed in connection with a bed
or table and fences for holding and fixing the stone under operation, in
manner substantially as herein shewn and described.
In witness whereof, I, the said Pinder Hackworth, have hereunto
set my hand and seal, this Sixteenth day of August, in the
year of our Lord One thousand eight hundred and seventy.
PINDER HACKWORTH. (L.S.)
Witness,
Cuas. M. WHITE,
Clerk to Messrs. Harris & Mills,
Patent Agents,
35, Southampton Buildings,
London.