IMPROVEMENTS IN CONDENSER DOFFERS OF CARDING
Year: 1875

page_text: LETTERS PATENT to Edward Priest, and Allen Priest, both of
Huddersfield, in the County of York, Yarn Spinners, and James
Law, of Cleckheaton, in the County aforesaid, Card Manufacturer,
for the Invention of "IMPROVEMENTS IN CONDENSER DOFFERS OF CARDING
Scaled the 7th September 1875, and dated the 13th March 1875.
PROVISIONAL SPECIFICATION left by tho said Edward Priest, Allen
Priest, and James Law at the Office of the Commissioners of
Patents, with their Petition, on the 13th March 1875.
We, EDWARD PRIEST, and ALLEN PRIEST, both of Huddersfield, in the
County of York, Yarn Spinners, and JAMES LAW, of Cleckheaton, in the
County aforesaid, Card Manufacturer, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN CONDENSER DOFFERS OF CARDING
ENGINES," to be as follows:-
:-
This Invention relates to the annular rings applied between the several
rings of cards with which the condenser doffer is covered or "clothed,”
and which rings have heretofore been made solid and of lead, leather, or

page_text: gutta percha; rings so made obstruct the "dresser" from thoroughly
cleaning the cards on the condenser doffer.
Rings mado according to this Invention we construct with a deep
recess, groove, or channel, formed around the periphery of the ring, and
we prefer the upper edges of the recess, groove, or channel, should
be somewhat thinner than the other portions of the recess, groove, or
channel, and we prefer to use lead, but tin, sheet iron, or brass may be
used.
The advantage of the use of metal rings so made is that when applied
to the condenser cylinder by the introduction of a fixed tool of the form 1
of the recess, groove, or channel, its upper edges may be slightly
expanded outwards and will bear evenly and truly against the teeth of
the cards on each side of it; the cards of the condenser may be
thoroughly cleaned, because the dresser can get down into and amongst
the card teeth, and the edges of the improved rings above described wear ]
down evenly with the cards.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Priest, Allen Priest, and James Law in the
Great Seal Patent Office on the 13th September 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, EDWARD 2
PRIEST, and ALLEN PRIEST, both of Huddersfield, in the County of
York, Yarn Spinners, and JAMES LAW, of Cleckheaton, in the County
aforesaid, Card Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of March, in the year 2
of our Lord One thousand eight hundred and seventy-five, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Edward Priest, Allen Priest, and James
Law, Her special licence, that we, the said Edward Priest, Allen Priest,
and James Law, our executors, administrators, and assigns, or such
others as we, the said Edward Priest, Allen Priest, and James Law, our
executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during

page_text: 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 CONDENSER DOFFERS OF CARDING ENGINES," upon the
condition (amongst others) that we, the said Edward Priest, Allen Priest,
and James Law, our executors or administrators, by an instrument in
writing under our, 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
samo 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 we, the said Edward Priest, Allen Priest, and
James Law, do hereby declare the nature of our 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 the annular rings applied between the
several rings of cards with which the condenser doffer is covered or
clothed, and which rings have heretofore been made solid and of lead,
leather, or gutta percha; rings so made obstruct the "dresser" from
thoroughly cleaning the cards on the condenser doffer.
Rings made according to this Invention we construct with a deep
recess, groove, or channel, formed around the periphery of the ring, and
we prefer the upper edges of the recess, groove, or channel should be
somewhat thinner than the other portions of the recess, groove, or
channel, and we prefer to use lead, but tin, sheet iron, or brass may be
used.
The advantage of the use of metal rings so made is that when applied
to the condenser cylinder by the introduction of a fixed tool of the form
of the recess, groove, or channel, its upper edges may be slightly
expanded outwards and will bear evenly and truly against the teeth of
the cards on each side of it; the cards of the condenser may be
thoroughly cleaned, because the dresser can get down into and amongst
the card teeth, and the edges of the improved rings above described wear
down evenly with the cards.
Such being the nature and object of this our Invention, we will now
proceed to describe the same in detail, and in order that the description

page_text: the same.
Figs. 1, 1ª, are views of a condenser doffer.
Figs. 2 and 3 are sectional views of the improved rings detached.
Figs. 4 and 5 show the tools used for expanding the edges of the
rings, and for correcting any inequality in the rings when on the
condenser doffer.
A, A, A, are the improved rings; B the condenser doffer; E, E, are
the tools employed for expanding and correcting the edges of the rings, 1
which latter will be secured at their junction on the condenser doffer by
the ordinary means.
Having thus described the nature and particulars of this our said
Invention together with the manner in which the same is to be performed
or carried into practical effect, we would have it understood that what we
claim as our Invention is, the construction and use of rings for purpose
aforesaid as herein described and illustrated by Figs. 1, 1º, 2, and 3 of tho
Drawings.
In witness whereof, I, the said James Law, for and on behalf of
myself and the said Edward Priest, and Allen Priest, have here-
unto set my hand and seal, this Ninth day of September in
the year of our Lord One thousand eight hundred and seventy-
five.
Witness,
SAMUEL H. Cox,
Cleckheaton.
JAMES LAW. (L.S.)