IMPROVEMENTS IN CARDING ENGINES
Year: 1859

page_text: LETTERS PATENT to Thomas Hall Arrowsmith, of Bolton, in the County
of Lancaster, Cotton Spinner, for the Invention of "IMPROVEMENTS IN
CARDING ENGINES."
Sealed the 27th October 1859, and dated the 2nd May 1859.
PROVISIONAL SPECIFICATION left by the said Thomas Hall Arrowsmith
at the Office of the Commissioners of Patents, with his Petition, on the
2nd May 1859.
I, THOMAS HALL ARROWSMITII, of Bolton, in the County of Lancaster,
Cotton Spinner, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN CARDING ENGINES," to be as follows:-
Instead of employing two adjusting screws at each end of the flat for the
purpose of setting as at present, I use only one at each end, which screw
supports and regulates a bracket or plate formed to suit the working techni-
cally called the "set" of the card, lateral movement of the bracket or plate
being prevented by means of a steady pin or other contrivance.
By these improvements the flat is set without difficulty, and with great
economy of time.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Hall Arrowsmith in the Great Seal Patent Office on
the 2nd November 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
HALL ARROWSMITH, of Bolton, in the County of Lancaster, Cotton Spinner,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of May, in the year of our Lord One
thousand eight hundred and fifty-nine, in the twenty-second year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Thomas Hall Arrowsmith, Her special licence that the said Thomas Hall
Arrowsmith, my executors, administrators, and assigns, or such others as
I, the said Thomas Hall Arrowsmith, 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 "IMPROVEMENTS IN CARDING ENGINES," upon the condition
(amongst others) that I, the said Thomas Hall Arrowsmith, by an instru-
ment in writing under my hand and seal, 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 Hall Arrowsmith, do hereby
declare the nature of my said Invention, and the manner in which the same is
to be performed, to be particularly described and ascertained in and by the
following statement (that is to say) :-
-
My Invention consists in employing one adjusting screw at each end of the
flat for the purpose of setting, which screw supports and adjusts a bracket or
plate formed to suit the working technically called the "set of the card,"
lateral movement of the bracket or plate being prevented by forming it with a
flat surface, and fitting it against the bend of the carding engine, or by means
of a steady pin or other contrivance.
I employ the aforesaid single adjusting screw at the end of the flat instead of

page_text: the two at present in use, and am thereby enabled to set the flat without
difficulty, and with great economy of time.
The manner in which my Invention is to be performed will be clearly.
understood by referring to the figures and letters on the accompanying Sheet of
Drawings, in which Fig. 1 is an end view, shewing part, in section, of my
improvements adapted to old carding engines; Fig. 2 is a vertical section, and
Fig. 3 a plan of one of the brackets; Figs. 4 and 5 are end and front views
of my improvements as applied to new carding engines; and Fig. 6 a plan of
one of the brackets.
In Fig. 1, a represents part of the wooden bend of the old carding engine;
b, the flats; c, my improved brackets; d, the chipping pieces; e, the screws for
setting; and f, the steady pins.
In one arrangement each screw e is turned down at its end as at g, and fitted
into a socket in the bracket so as to support the latter, and enable it to be
raised or lowered according to the required adjustment of the flat by the
raising or lowering of the screw in the bend, the steady pin at the same time
preventing lateral movement of the bracket.
In Figs. 4 and 5, h represents part of the metal bend of the new carding
engine; i, one of the flats; j, one of my improved brackets having chipping
pieces; and one of the screws for setting, which screws work in screwed
holes in the flange m forming part of the bend. The brackets are flat at their
sides, as at n, and fit against the flat part o of the bend, thereby preventing
lateral movement without the use of steady pins. The end of the screw is
turned down, and turns in a socket in the bracket, and is maintained in its
proper place by the pin p, working in a circular groove.
Either in the old or new carding engines I may, when desired, employ a
screw, as shewn at q, Fig. 1, in which the part entering the socket of the
bracket is screwed instead of being plain, the thread having a different pitch to
the screw passing through the bend, by which means the "setting of the card"
can be performed with great ease and nicety.
Having thus fully described the nature and particulars of my said Inven-
tion, and the manner in which the same is to be performed, I desire it to
be distinctly understood that I do not confine myself to the precise_details
herein set forth, as such may be varied or modified without departing from the
principle thereof; but I claim as my Invention, and which to the best of
my knowledge and belief has not been hitherto used within the realin, the
employment of one adjusting screw instead of two for regulating the working

page_text: of the flats of the carding engine technically called the "set of the card;" and
also the employment of brackets for supporting the flats, as such improvements
are herein described and illustrated in the accompanying Sheet of Drawings.
In witness whereof, I, the said Thomas Hall Arrowsmith, have hereunto
set my hand and seal, this First day of November, in the year of our
Lord One thousand eight hundred and fifty-nine.
THOMAS HALL ARROWSMITH. (L.S.)
Signed, sealed, and delivered by the within-
named Thomas Hall Arrowsmith, in the
presence of
GEO. SEP. HUGHES,
17, Cross Street,
Manchester.