CERTAIN IMPROVEMENTS IN MACHINERY FOR CARDING COTTON.
Year: 1875

page_text: LETTERS PATENT to Thomas Frederick Wallwork, of Farnworth, near
the City of Manchester, Cotton Spinner, for the Invention of
OA TAM TY MANDY FOR NARRING CAmmo 22
" CERTAIN IMPROVEMENTS IN MACHINERY FOR CARDING COTTON.'
"
Sealed the 4th January 1876, and dated the 4th September 1875.
PROVISIONAL SPECIFICATION left by the said Thomas Frederick
Wallwork at the Office of the Commissioners of Patents, with his
Petition, on the 4th September 1875.
I, THOMAS FREDERICK WALLWORK, of Farnworth, near the City of
Manchester, Cotton Spinner, do hereby declare the nature of the said
Invention for "CERTAIN IMPROVEMENTS IN MACHINERY por CaBDING COTTON,"
to be as follows:-
My Invention is applicable to the carding engines known as Well-,
man's Patent self-stripping cards, and it consists in applying to each of
the top flats and to the stripper blocks of wood of the height of the
card teeth, the object of which is to prevent the card teeth from being

page_text: injured by striking the card fillet on the top flat into the card fillet on
the stripper, or vice versa, also in removing the waste cotton from the
card fillet on the stripper by means of a vibrating comb.
By means of this Invention the cards are rendered more durable, the
grinding is not required so often, and the cotton waste is entirely 5
removed from the face of the top flat, thereby insuring good carding, as
the face of the top flat is perfectly clean when lowered on to the main
cylinder.
SPECIFICATION in-pursuance of the conditions of the Letters Patent,
filed by the said Thomas Frederick Wallwork in the Great Scal
Patent Office on the 25th February 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
FREDERICK WALLWORK, of Farnworth, near the City of Manchester,
Cotton Spinner, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of September, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
ninth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Thomas Frederick Wallwork, Her
special license that I, the said Thomas Frederick Wallwork, my executors,
administrators, and assigns, or such others as I, the said Thomas
Frederick Wallwork, 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 In-
vention for "CERTAIN IMPROVEMENTS IN MACHINERY FOR CARDING COTTON,"
upon 'the condition (amongst others) that I, the said Thomas Frederick
Wallwork, my executors or adminstrators, 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.

page_text: NOW KNOW YE, that I, the said Thomas Frederick Wallwork, 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):-
My Invention is applicable to the carding engines known as Well-
man's Patent self-stripping cards, and it consists in applying to each of
the top flats and to the stripper blocks of wood or other material of the
height of the card teeth.
My Invention consists also in removing the waste cotton from the card
fillet on the stripper by means of a comb.
And in order that my Invention may be fully understood, and readily
carried into operation, I will proceed to describe the accompanying
Sheet of Drawings, in which Fig. 1 is a front view, and Fig. 2, an end
view of part of a Wellman's Patent self-stripping card.
a is part of one of the radial arms, and is the cross bar for uniting
the upper ends of the radial arms; these pieces form part of the ordinary
Wellman's Patent self-stripping carding engine. Near each end of the
cross bar is bolted a bracket c, to which are bolted the brackets d, in
which the cross shaft e is free to vibrate. To this cross shaft are fixed
the outer arms f, and the intermediate arms g, which support the comb
by which the waste cotton or other fibres are removed from the stripper i.
To each arm fis hinged a catch f¹, which is pressed against the stop f
by the spring fs, and to each bracket d is fixed a spring j, the lower end
of which presses against the lower end of the arm f, and holds the set
screw against a stop piece projecting from the bracket c. To each
end of the stripper i is fixed a block of wood or other material marked ",
and to cach top flat is fixed a block k¹; these blocks are all made
of about the same height as the card teeth, but as the card teeth yield
when being ground, and the blocks do not, it is evident that when at
work the card teeth project slightly beyond the blocks, as shewn in
the Drawing. The object of these blocks is to prevent the card teeth
from being injured by striking the card fillet on the top flat into the
card fillet on the stripper, or vice versa. When the stripper i is passing
under the comb the blocks 'acting on the spring catches f¹ cause
them to assume the position shewn by dots in Fig. 2, and the comb h
then strips the cotton waste from the card fillet on the stripper, but as
soon as the blocks have passed beyond the catches f' the springs f³

page_text: press them back against the projections f. At the return stroke of the
stripper the ends of the blocks' act against the bottom of the catches ƒ¹
and cause the arms f and g with the shaft e to vibrate on its axis in the
direction of the arrow, thereby lifting the comb & above the card fillet on
the stripper i. During the return stroke of the stripper the waste fibres
are removed from the card fillet on the top flat. When the stripper has
passed beyond the catches the springs j press back the arms f until
the set screw f' again bears against the projection on the bracket c,
at which time the parts are restored to their original positions.
By means of this Invention the cards are rendered more durable, the
grinding is not required so often, and the cotton waste is entirely
removed from the face of the top flat, thereby ensuring good carding,
as the face of the top flat is perfectly clean when lowered on to the
main cylinder.
Having thus stated the nature of my Invention, and described the
manner of performing the same, I declare that I claim,—
First. The blocks at the ends of the top flats and the stripper for the
purpose described.
And, Secondly. Removing the waste fibres from the stripper by
means of a stripping comb on a vibrating shaft, as shewn and
described.
T. F. WALLWORK. (L.S.)