IMPROVEMENTS IN THE MANUFACTURE OF ROLLERS OR CYLINDERS USED BY CALICO PRINTERS, ADDE TOATE A ASTn WHICH IMPSARE ALSO APPLICABLE TO OTHER PURPOSES
Year: 1863

page_text: LETTERS PATENT to Thomas Knowles, of the City of Manchester, in the
County of Lancaster, Engineer, for the Invention of "IMPROVEMENTS IN
THE MANUFACTURE OF ROLLERS OR CYLINDERS USED BY CALICO PRINTERS,
ADDE TOATE A ASTn
か
Sealed the 31st May 1864, and dated the 3rd December 1863.
PROVISIONAL SPECIFICATION left by the said Thomas Knowles at the
Office of the Commissioners of Patents, with his Petition, on the
3rd December 1863.
I, THOMAS KNOWLES, of the City of Manchester, in the County of Lancaster,
Engineer, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN THE MANUFACTURE OF ROLLERS OR CYLINDERS USED BY CALICO PRINTERS,.
WHICH IMPROVEMENTS ARE ALSO APPLICABLE TO OTHER PURPOSES," to be as-
follows:-
For calico printers' purposes I take the old or worn out roller and drive or
force an outer roller or cylinder upon it in any suitable manner, or, if found
desirable, a succession of shells may be put on in the same manner; by this
means I dispense with the necessity of fixing the maundril each time the roller
requires renewing, and I also diminish the weight of metal required in stock
very considerably.
It is evident that embossing and other rollers or cylinders can be made in
the same manner, the outer shells being made any thickness or strength, as
may be found most useful, and for the purpose of more easily forcing the outer
on the inner shell I make them of a telescopic form, though I do not confine

page_text: myself to that principle, and the shells or rollers so made or manufactured can
be turned and polished in the usual manner without any inconvenience to
the trade.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Knowles in the Great Seal Patent Office on the
2nd June 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
KNOWLES, of the City of Manchester, in the County of Lancaster, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of December, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Thomas Knowles, Her special license that I, the said Thomas
Knowles, my executors, administrators, and assigns, or such others as I,
the said Thomas Knowles, 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 "IMPROVE-
MENTS IN THE MANUFACTURE OF ROLLERS OR CYLINDERS USED BY CALICO PRINTERS,
WHICH IMPROVEMENTS ARE ALSO APPLICABLE TO OTHER PURPOSES," upon the con-
dition (amongst others) that I, the said Thomas Knowles, 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 Thomas Knowles, 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 thereof, reference being had to the Figures on the accompanying
Sheet of Drawings, and to the letters marked thereon (that is to say):-
For calico printers' purposes I take the old or worn out roller and drive or
force an outer shell or roller of copper or brass upon it in any suitable manner,
and put a succession of shells on the inner roller in the same manner, which

page_text: outer shells are being continually changed and put on and taken off, according
to the patterns as long as the said roller lasts. By these means I dispense
with the necessity of fixing the maundril each time the roller requires
renewing, and I also diminish at least one-third the weight of metal required
in stock.
It is evident that embossing and other rollers or cylinders can be made in
the same manner, the outer shells being made of any thickness or strength as
may be found most useful; and for the purpose of more easily forcing the
outer shell on the inner shell or roller I make them slightly taper or conical,
although I do not confine myself to that principle, and the rollers can be
turned and polished in the usual manner without any inconvenience to
the trade.
In the accompanying Sheet of Drawings Fig. 1 is a longitudinal section,
and Fig. 2 an end elevation, of an old or worn-out roller, covered with an
outer shell or roller; and Fig. 3 a transverse section of the inner shell only,
there being a number of outer shells for one inner shell, which outer shells
are changed after each pattern is finished. a represents the inner shell or old
or worn-out roller; and 6 the outer shell, which is maintained in its right
position by the nib or key c.
Having now described the nature and particulars of my said Invention, and
the manner in which the same is to be performed, I desire it to be understood
that I claim the covering of the old or worn-out copper or brass rollers used
by calico printers and others with shells or rollers of copper or brass, as
herein described, and illustrated in the accompanying Sheet of Drawings.
In witness whereof, I, the said Thomas Knowles, have hereunto set my
hand and seal, this First day of June, in the year of our Lord One
thousand eight hundred and sixty-four.
Signed, sealed, and delivered by the
within-named Thomas Knowles,
in the presence of
E. J. HUGHES,
Patent Agent,
Manchester.
THOMAS KNOWLES. (L.S.)