IMPROVEMENTS IN BALANCING MILL- STONES TO THE RUNNING AS WELL AS THE STANDING STATE
Year: 1859

page_text: LETTERS PATENT to Henry Clarke, of Wakefield, in the County of York,
Corn Factor, for the Invention of "IMPROVEMENTS IN BALANCING MILL-
STONES TO THE RUNNING AS WELL AS THE STANDING STATE.-A communication
from abroad by Thomas Narburgh, of St. Louis, Missouri, North America.
PROVISIONAL SPECIFICATION left by the said Henry Clarke at the
Office of the Commissioners of Patents, with his Petition, on the
11th May 1859.
I, HENRY CLARKE, of Wakefield, in the County of York, Corn Factor,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
BALANCING MILLSTONES TO THE RUNNING AS WELL AS THE STANDING STATE,"
as communicated to me from abroad by Thomas Narburgh, of St. Louis,
Misouri, North America, to be as follows:-
The Invention has for its object the balancing of the running stone of mill-
stones to the running as well as the standing state, which is accomplished
by having a number of holes or recesses suitably formed in the stone, with
portable boxes, cups, or buckets, placed therein, for holding lead, shot, or
other suitable substance for producing the standing balance, which boxes are

page_text: capable of being raised or lowered in the said holes or recesses by screws or
other regulating means, and thereby the running balance is effected as
required.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Clarke in the Great Seal Patent Office on the
10th November 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
CLARKE, of Wakefield, in the County of York, Corn Factor, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of May, in the year of our
Lord One thousand eight hundred and fifty-nine, in the twenty-second year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Henry Clarke, Her special licence that I, the said Henry Clarke,
my executors, administrators, and assigns, or such others as I, the said
Henry Clarke, 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
BALANCING MILLSTONES TO THE RUNNING AS WELL AS THE STANDING STATE," as
communicated to me by Thomas Narburgh, of St. Louis, Misouri, North
America, upon the condition (amongst others) that I, the said Henry Clarke,
by any 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 Henry Clarke, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement (that is to say): :-
The Invention has for its object the balancing of the running stone of mill-
stones to the running as well as to the standing state, which is accomplished
by having a number of holes or recesses suitably formed in the said stone,
with portable boxes, cups, or buckets placed therein for holding lead, shot, or
other suitable weighting substance for producing the standing balance; which

page_text: boxes, or the weights therein, are capable of being raised or lowered in the
said holes by screws or other regulating means, and thereby the running:
balance is effected as required.
The Invention will be readily understood by reference to the accompanying
Sheet of Drawings.
Fig. 1 is a plan of a millstone, in which four holes or recesses are formed,.
with portable boxes, cups, or buckets placed therein for holding the lead, shot,
or other materials, or weights employed for effecting the standing balance
thereof; and Fig. 2 is a cross section of the same; Fig. 3 is a full-size
elevation of one of the said boxes; and Fig. 4 is a vertical section of the
same, shewing the internal arrangement and construction thereof, with the
weights or substances used for producing the standing balance, and the means
of regulating or raising and lowering the said weights thus used, by which
the running balance is obtained.
A is a cylindrical box or case of tin, with slots or grooves in opposite
sides, a, a; and B is a cast-iron lid or cover fastened to lugs thereon, with
set screws b, b; C is a bucket or cup for holding shot, lead, or other suitable
weighting substance, for producing the standing balance; D is a screw passing
through the centre of the bucket or cup, and screwed through the plates d
and e; the ends of which screw rest in the bottom and lid of the case A.
The top end of the screw is so formed, that a key or screw wrench may be
placed thereon for turning the said screw, by which the bucket or cup is
raised or lowered in the case as required. The cup is prevented from turning
round in the case by projections on the plates d, e, which fit into the slots or
grooves a, a, in the side of the case, so as to slide freely therein. Fig. 5 is a
vertical section of a box or case A, the screw D, and two plates & and e, with
cast-iron rings f placed betwixt, as weights for balancing, instead of shot,
lead, &c.; Fig. 6 is a sectional plan of the same, taken through the line F, G,
shewing the slots or grooves a, a, which prevent the plates turning round.
Any number and thickness of such plates may be used, or a sufficient weight
to effect the standing balance, the top and bottom plates being screwed, and
having lugs or projections to fit into the slots a, a, of the casing, the whole
may be raised or lowered in the said case, as required, by turning the screw to
the right or to the left.
Having thus fully described the nature of this Invention, and the manner
in which the same is to be performed or carried into practical effect, I would
have it distinctly understood that I do not claim the balancing of millstones
to the standing state separately, nor contine myself to the precise details of
arrangement and construction of the parts or apparatus employed, for the

page_text: purpose as herein set forth; but I claim as the Invention (communicated to
me by the aforesaid Thomas Narburgh), and which I believe to be new
within the realm, is, the combined means of balancing the running stone of
millstones to the running as well as to the standing state, by adjustable
weights, as herein described and illustrated in the accompanying Sheet of
Drawings, or any modification thereof.
In witness whereof, I, the said Henry Clarke, have hereunto set my
hand and seal, this Thirty-first day of October, in the year of our
Lord One thousand eight hundred and fifty-nine.
Signed, sealed, and delivered by the
within-named Henry Clarke in the
presence of
W. TASKER, Patent Agent,
Halifax.
HENRY CLARKE. (L.S.)