IMPROVEMENTS IN THE MEANS, MACHINERY, OR APPARATUS USED FOR GRINDING DYE-WARES
Year: 1856

page_text: LETTERS PATENT to James Samson Barraclough, of Halifax, in the
County of York, Dye-ware Grinder, for the Invention of "IMPROVEMENTS
IN THE MEANS, MACHINERY, OR APPARATUS USED FOR GRINDING DYE-WARES."
led the 23rd June 1857, and dated the 24th December 1856
PROVISIONAL SPECIFICATION left by the said James Samson Barraclough
at the Office of the Commissioners of Patents, with his Petition, on
the 24th December 1856.
I, JAMES SAMSON BARRACLOUGH, of Halifax, in the County of York, Dye-
ware Grinder, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN THE MEANS, MACHINERY, OR APPARATUS USED FOR GRINDING DYE-WARES,"
to be as follows:-
The nature of my Invention relates to machinery or apparatus used for
grinding dye-wares known as "head stones," and consists in the appli-
cation thereto, and the use in connection therewith, of Archimedean screws,
for removing and conducting the ground and partly ground wares from the
"bed stone" of the grinding apparatus to the sieve, and also for returning
the "grips," or those portions of wares that do not pass through the sieve,
back to the grinding apparatus to be again operated upon, thus constituting
the said grinding apparatus self-acting, whereby I am enabled to dispense
with the service of an attendant for the above purposes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Samson Barraclough in the Great Seal Patent Office
on the 24th June 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
SAMSON BARRACLOUGH, of Halifax, in the County of York, Dye-ware Grinder,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of December, in the year of our
Lord One thousand eight hundred and fifty-six, in the twentieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said James Samson Barraclough, Her special licence that I, the said
James Samson Barraclough, my executors, administrators, and assigns, or such
others as I, the said James Samson Barraclough, 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 King-
dom of Great Britain and Ireland, the Channel Islands, and Isle of Man,
an Invention for "IMPROVEMENTS IN THE MEANS, MACHINERY, OR APPARATUS USED
FOR GRINDING DYE-WARES," upon the condition (amongst others) that I, the
said James Samson Barraclough, by an instrument in writing under my hand
and seal, 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 James Samson Barraclough, do hereby
declare the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement (that is to say):-
My Invention relates to machinery or apparatus used for grinding dye-wares
known as head stones, and consists in the application thereto, and the use in
connection therewith, of Archimedean screws, for removing and conducting the
ground and partly ground wares from the bed stone of the grinding apparatus
to the sieve, and also for returning the grips, or those portions of wares that do
not pass through the sieve, back to the grinding apparatus to be again operated
upon, thus constituting the grinding apparatus self-acting, whereby I am
enabled to dispense with the services of an attendant for the said purposes.
The nature and particulars of my said Invention will be clearly understood
by reference to the accompanying Sheet of Drawings, and the letters of

page_text: reference thereon, the same letters in each Figure referring to the same part
of the apparatus.
Fig. 1 is a side elevation, partly in section; Fig. 2, a front elevation also
partly in section; and Fig. 3, a plan of the said apparatus. Figs. 4 and 5 are
full-size Drawings of the screw. a, a, represent the head stones which rotate
on the spindle b, passed through their centres, and also through a slot in the
upright shaft c, which allows of their moving up and down, according to
the quantity or thickness of the wares laying on the surfaces of the bed stone d,
as they are driven or caused to roll round by the said upright shaft c. e, c¹, are
scrapers, attached to the upright shaft, and are carried round therewith for the
purpose of gathering the wares into the track of the head stones; fis the sieve,
or sifting dickey, which is suspended by the links g, g, and agitated by the
crank spindle h, a wood framework i enclosing the same; all of which is well
understood by dye-ware grinders, and to which I make no special claim. jis
an Archimedean screw, supported in the bearings k, k, at each end of the
trough, and driven or caused to rotate upon its axis by the pulley m (or by
any other suitable means); n is another similar screw, placed in an inclined
position, and also driven or caused to rotate upon its axis by the pulley o. It
will be readily perceived that at every revolution of the head stones in the
direction of the arrow the scraper e will deposit a quantity of wares through
the opening p to the screw j, which by rotating in the trough will carry the
same forward to the sieve. The grips, or those portions of wares that do not
pass through the sieve, will pass out at the spout to the other screw r, which
will in like manner carry or force the grips up its trough to the surface of the
bed stone, depositing the same on the side of the head stone within the track
of the scraper e', which will draw or gather them into the track of the stones
to be again operated upon. Heretofore in the grinding of such wares the sub-
stances after being operated upon for a time had to be removed by an attendant
from the bed stone to the sieve, and also the grips from the sieve back again
to the bed stones, which, owing to the peculiar nature of some of the substances,
rendered this business highly detrimental to human health, in addition to the
cost of labour in doing it. But by my Invention the grinding apparatus is
rendered self-acting, thus dispensing with that disagreeable and unhealthy part
of the attendant's duty, and at the same time diminishing the cost of grinding.
Having thus fully described and ascertained the nature and particulars of my
said Invention, and the manner of carrying the same into practical effect, I
desire it to be distinctly understood that I claim as my Invention, and which
I believe to be new within the realm, the application and use of Archimedean
screws, as herein explained, and illustrated in the accompanying Sheet of

page_text: Drawings, or any modification of arrangement or application thereof, for the
purposes herein set forth.
In witness whereof, I, the said James Samson Barraclough, have here-
unto set my hand and seal, this Twenty-third day of June, in the
year of our Lord One thousand eight hundred and fifty-seven.
JAMES SAMSON BARRACLOUGH. (L.S.)
Signed, sealed, and delivered by the within-
named James Samson Barraclough, in the
JAMES SAMSON BARRACLOUGH. (L.S.)
Signed, sealed, and delivered by the within-
named James Samson Barraclough, in the
presence of
W TASKER, Patent Agent,
Halifax.