UTILISING REFUSE TANNING MATTERS FOR DYEING PURPOSES
Year: 1868

page_text: LETTERS PATENT to Edward Mucklow, of Bury, Manchester, and
Glasgow, Manufacturer and Merchant, for the Invention of
"UTILISING REFUSE TANNING MATTERS FOR DYEING PURPOSES."
Sealed the 4th December 1868, and dated the 25th June 1868.
PROVISIONAL SPECIFICATION left by the said Edward Mucklow at
the Office of the Commissioners of Patents, with his Petition, on
the 25th June 1868.
I, EDWARD MUCKLOW, of Bury, Manchester, and Glasgow, Manu-
facturer and Merchant, do hereby declare the nature of the said Invention
for "UTILISING REFUSE TANNING MATTERS FOR DYRING PURPOSES," to be as
follows:-
This Invention relates to utilising the waste or refuse material
employed by tanners after the same has been used in tanning hides
and skins, such as the spent oak, spruce, hemlock, or other barks,
galls, sumac, valonia, myrabolums, divi divi, gambier, and all similar
materials. These substances in their original state are known to contain
a considerable quantity of colouring matter in addition to the tanin or

page_text: astringent principle required for tanning purposes, and when left to
steep in contact with the hides or skins the coloring principle appears
to undergo an important change or modification by the natural absorption
of gelatin, phosphate of lime, and other animal matter, and I have
discovered that in this state they become more valuable for producing
permanent dyes on cottons, linens, silks, woollens, and other textiles or
fabrics than before being used for tanning purposes, and are suitable to
use for dyeing purposes in most cases where gelatin and tanning
matters are now employed in commerce in artificial combination by
calico printers', and by fustian, cotton, silk, and woollen dyers. These
waste products of the tan pits, being a natural combination of tanin,
coloring matter, gelatin, phosphate of lime, and other chemical
substances, I propose to call by the name of natural "tanine," and the
same will be found especially valuable. to calico printers, Turkey red
dyers, and others, to use in place of quercitron bark, sumac, and gelatin
in combination with madder, dyewoods, and other coloring matters, and
with the well-known mordants or bases; and commercial preparations
of alum, iron, tin, copper, and others are equally useful and valuable
to dyers for producing, slades such as stoves, drabs, olives, browns,
blacks, and as a bottom for dark indigo blue, materially economising
indigo in dyeing dark shades as the natural "tanine" gives more
permanent dyes, fills the mordant, and otherwise improves the present
method of dyeing these shades of color.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Mucklow in the Great Seal Patent
Office on the 24th December 1868.,
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD.
MUCKLOW, of Bury, Manchester, and Glasgow, Manufacturer and
Merchant, send greeting.
2
WHEREAS Her most Excellent Majesty Queen Victoria, by Her 3
Letters Patent, bearing date, the Twenty-fifth day of June, in the
year of
our Lord One thousand eight, hundred and sixty-eight, in the thirty-first
year of Her reign, did; for Herself, Her heirs, and successors, give:
and grant unto me, the said Edward Mucklow, Her special license
that I, the. said Edward Mucklow, my executors, administrators, and, 3

page_text: assigns, or such others as I, the said Edward Mucklow, 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 "UTILIZING REFUSE TANNING
MATTERS FOR DYEING PURPOSES," upon the condition (amongst others)
that I, the said Edward Mucklow, my executors or administrators, by an
instrument in writing under my, 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 Edward Mucklow, 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) :-
:-
This Invention relates to utilizing the waste or refuse material
employed by tanners, such as the spent oak, spruce, hemlock, or other,
barks, galls, sumac, valonia, myrabolams, divi divi, gambier, and all
similar materials after the same have been used in tanning hides and
skins. These substances in their original state are known to contain a
considerable quantity of colouring matter in addition to the tannin
or astringent principle required for tanning purposes, and when left to
steep in contact with the hides or skins the colouring principle appears
to undergo an important change or modification by the natural absorption
of gelatine, phosphate of lime, and other animal matter, and I have
discovered that in this state they become more valuable for producing
permanent dyes on cottons, linens, silks, woollens, and other textiles
or fabrics than before being used for tanning purposes, and are suitable
to use for dyeing purposes in most cases where gelatine and tanning
matters are now employed for dyeing purposes in artificial combination
by calico printers, and by fustian, cotton, silk, and woollen dyers.
These waste products of the tan pits, being a natural combination of
tannin, coloring matter, gelatine, phosphate of lime, and other chemical
substances, I propose to call by the name of "natural tanine," and the
same will be found especially valuable to calico printers, Turkey red

page_text: dyers, and others, to use in place of quercitron bark, sumac, and gelatine,
in combination with madder, dye woods, and other coloring matters,
and with the well-known mordants or bases, namely, the commercial
preparations of alum, iron, tin, copper, and others, and the "natural
tanine" is equally useful and valuable to dyers for producing shades,
such as stones, drabs, olives, browns, blacks, and as a bottom for dark
indigo bluc, materially economising indigo in dyeing dark shades, as
the natural "tanine" gives more permanent dyes, fills the mordant,
and otherwise improves the present method of dyeing these shades
of color.
Having thus stated the nature and particulars of my Invention I
wish it to be understood that I make no claim to any particular mode
of carrying my Invention into operation; but what I do claim is,
utilising the waste or refuse material employed in tanning for dyeing
purposes.
In witness whereof, I, the said Edward Mucklow, have hereto set
my hand and seal, this Twenty-third day of December, One
thousand eight hundred and sixty-eight.
(9) MOTION
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