IMPROVEMENTS IN DYEING AND STRETCHING SILK AND IN FINISHING PLUSH
Year: 1847

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
LE LIEVRE, of Cleveland Street, Mile End, in the County of Middlesex, Silk
Dyer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Twenty-fourth day
of May, One thousand eight hundred and forty-seven, in the tenth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
mc, the said Henry Le Lievre, my exors, adiñors, and assigns, Her especial
licence, full power, sole privilege and authority, that I, the said Henry Le
Lievre, my exors, admors, and assigns, or such others as I, the said Henry
Le Lievre, my exors, adiñors, 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, exercise, and vend, within
England, Wales, and. the Town of Berwick-upon-Tweed, my Invention of
"IMPROVEMENTS IN DYEING AND STRETCHING SILK AND IN FINISHING PLUSH;" in
which said Letters Patent is contained a proviso that I, the said Henry Le
Lievre, shall cause a particular description of the nature of my said Invention,
and in what manner the same is to be performed, by an instrument in
writing under my hand and seal, to be inrolled in Her 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 Le Lievre, do hereby declare that the nature of my said Invention, and

page_text: the manner in which the same is to be performed, are fully described aud
ascertained in and by the following. statement thereof, that is to say :-
My Invention consists,--
First, of improvements in dyeing silks what is called hat black.
And, secondly, of improvements in the process of stretching silk so dyed.
And in order that my Invention may be fully understood and readily carried
into effect, I will proceed to describe the means pursued by me.
In dyeing silk "hat black" it has heretofore been usual to use nitrate of
iron as a mordant and oak bark, and I have found that by employing alder.bark
a great improvement in the color is obtained. And it will only be necessary
to state that this part of the process of dyeing silk "hat black" is the same as
heretofore, excepting substituting or applying alder bark in place of oak bark.
In the next part of the process fustic has been employed by the dyer, and I
have found that the use of citron bark produces a great improvement, and I
employ like quantities of fustic and citron bark in place of using all fustic.
In other respects the process is conducted as heretofore. And, lastly, the dyer
in dyeing silks "hat black" have used a lather of mottle soap and logwood,
and I have found that by using the finest olive oil soap a very improved result
is obtained; and in carrying out this part of the process the soap lather is to be
used as heretofore, simply substituting or applying olive oil soap for the
common soap formerly employed.
The second part of my Invention consists of conducting the process of
stretching silk so dyed hat black to an atmosphere of steam, in place of doing
it in the ordinary atmosphere as heretofore, and for this purpose I employ a
perforated tube close under where the process of stretching is being performed,
so that the steam passing from a steam boiler or generator rushes out at the
numerous small openings, and thus produces an atmosphere of vapour which
greatly improves the appearance of the silk stretched under such circumstances.
Having thus described the nature of my Invention, and the manner in
which the same is to be performed, I would have it understood that what I
claim is,
First, the mode of dyeing silk "hat black" by employing alder bark, citric
bark, and olive oil soap.
And, 'secondly, I claim the conducting the process of stretching dyed silk to
the atmosphere of vapour or steam, as described.
year of
In witness whereof, I, the said Henry Le Lievre, have hereunto set my
hand and seal seal, this Twenty-fourth day of November, in the
our Lord One thousand eight hundred and forty-seven.
HENRY LE LIEVRE (L.s.)

page_text: In the matter of a Patent granted to Henry Le Lievre, of Cleveland
Street, Mile End, in, the County of Middlesex, Silk Dyer, for his
Invention of "IMPROVEMENTS IN DYEING AND STRETCHING SILK AND
IN FINISHING PLUSH," bearing date at Westminster, the Twenty-
fourth day of May, One thousand eight hundred and forty-seven.
DISCLAIMER proposed to be entered by Henry Le Lievre with the Clerk
of the Patents of England, pursuant to an Act passed in the fifth and
sixth years of the reign of His late Majesty King William the Fourth,
intituled "An Act to amend the Law touching Letters Patent for
Inventions."
Whereas since the sealing of such Patent, I have discovered that that part
of the Invention which was intended to have been specified under the words
"and in finishing plush" is not of such practical utility as to induce me to
insert it in the Specification, for which reasons I am desirous of disclaiming
those words from the title, and I do hereby disclaim such words.
In witness whereof, I, the said Henry Le Lievre, have hereunto set my
hand and seal, this Twenty-fourth day of November, in the year of
our Lord One thousand eight hundred and forty-seven.
To the Clerk of the Patents of England.
This is to certify that Henry Le Lievre, of Cleveland Street, Mile End, in
the County of Middlesex, Silk Dyer, has applied to me for leave to enter with
you the above-written Disclaimer of part of the title of a certain Invention for
which Letters Patent were duly granted to him under the Great Seal, on the
24th day of May, 1847; and having considered of the said application, and no
objection having been made to the same, I have accordingly granted leave to
the said Henry Le Lievre to file his said Disclaimer, pursuant to the Statute

page_text: passed in the 5th & 6th years of the reign of His late Majesty, entitled An
Act to amend the Laws touching Letters Patent for Inventions.
JOHN JERVIS.
AND BE IT REMEMBERED, that on the Twenty-fourth day of November,
in the year of our Lord 1847, the aforesaid Henry Le Lievre came before our
said Lady the Queen in Her 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.
Enrolled the Twenty-fourth day of November, in the year of our Lord
One thousand eight hundred and forty-seven.