CERTAIN IMPROVEMENTS IN MAKING OR MANUFACTURING LACE
Year: 1836

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
DONINGTON, of Nottingham, Lace Manufacturer, send greeting.
WHEREAS His present most Excellent Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Twenty-second day of June, in the sixth year of His
reign, did, for Himself, His heirs and successors, give and grant unto me, the
said Henry Dunington, His especial licence, full power, sole privilege and
authority, that I, the said Henry Dunington, my exors, admors, and assigns,
or such others as I, the said Henry Dunington, my exors, adñors, 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, exercisc, and vend, within England, Wales, and the Town of
Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS IN MAKING
OR MANUFACTURING LACE;" in which said Letters Patent there is contained a
proviso that I, the said Henry Dunington, should 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 His said Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said 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
Henry Dunington, do hereby declare the nature of my said Invention, and
the manner in which the same is to be performed, are fully described and

page_text: 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:-
66
My Invention relates to that description of lace machinery known as the
warp frame," and my present improvement consists in so constructing and
arranging the various cams on the back shaft as to produce four courses of
movements to the parts by one revolution of the said back shaft, whereby
great steadiness will be obtained in working this description of machinery,
notwithstanding the increase of speed obtained by such arrangements of
cams.
The warp frame being well known and understood by persons engaged in
the use of these machines, no description of the various parts or their manner
of working will be necessary; and as my present Invention consists of improve-
ments in the third particular of Invention, described and claimed under a
Patent granted by His present most Excellent Majesty to me and William
Copestakes, bearing date at Westminster, the Thirteenth day of May, in the
fifth year of His reign, reference being had to the Specification of that
Patent, with the aid of the Drawings hereunto annexed, will readily enable a
workman acquainted with this description of machinery to apply my present
Invention to warp machinery.
The third particular of my said former Patent consisted "in so arranging
the cams and parts on the back shaft, as to produce three courses by cach
revolution of the said back shaft." The present Invention is, therefore, con-
fined to the application of an additional or fourth movement to the various
cams on the back shaft and hence, supposing the back shaft to revolve at like
speeds, there will be gained one-fourth more work by my present Invention
than was obtained by my former Patent; and it should be stated, that I find
it important to keep the speed of the back shaft comparatively slow, by which
much vibration of the various parts is prevented, and hence safety of working
is obtained, notwithstanding the great speed of the working parts produced
by the application of additional movements or actuating surfaces to the cams
on the back shaft.
On examining the Drawing annexed to this my Specification, it will be
found that the cams in the present Invention are coloured with the same
colours as were used for the like cams in my former Specification, and the
name of each cam being written on it, and as the centre of each cam is cut
to fit the back shaft shewn in my former Specification, all that will be
required in addition to the information contained, my said former Specifica-
tion for changing my former three movement cams, and applying my present

page_text: improvements to warp frames, will be to make allowance for the larger
diameter of the cams; and in respect to the lace wheels and parts to work
the same, it will also be necessary to make allowance for the additional
or fourth movement applied in the present instance to each of the various
cams.
According the the construction of the cams shewn in the Drawing, they
are cut or formed for lap and press alternately, but for making some descrip-
tions of fabrics the lapping and pressing are not in that order, as is well under-
stood. In such cases the lapping and pressing cams are to be altered, thus
every other surface of the lapping can be removed, the result would be a
fabric with two laps to four pressings, and produce what is called new net for
tattings, &c., as is well understood.
Having thus described the nature of my Invention, and the manner of
carrying the same into effect, I would have it understood that I do confine
my claims of Invention to the application of means for obtaining an addi-
tional or fourth movement to the working parts from each revolution of the
back shaft of warp machines or frames, that is to say, working four courses
by each revolution of the back shaft, as above described.
In witness whereof, I, the said Henry Dunnington, have hereunto set
my hand and seal, this Twenty-second day of December, in the year
of our Lord One thousand eight hundred and thirty-six
HENKY (L.S.)
UNINGTON
AND BE IT REMEMBERED, that on the Twenty-second day of Decem-
ber, in the year of our Lord 1836, the aforesaid Henry Dunington came
before our said Lord the King in His Chancery, and acknowledged the
Specification aforesaid, 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.
Inrolled the Twenty-second day of December, in the year of our Lord-