Improvements relating to Carding Engine Flats.
Year: 1898

page_text: Date of Application, 19th May, 1898
Improvements relating to Carding Engine Flats.
We, ERNEST HANNAN GILLETT, of Ridgewood, near Chorley, in the County of
Lancaster, Cotton Spinner; JAMES FOGG, of 8, Crosse Hall Street, Chorley, afore-
said, Foreman, and FREDERICK WHITLEY THOMSON, of Brunswick Mills, Halifax,
in the County of York, Card Maker, do hereby declare the nature of this invention
to be as follows:-
1
This invention relates to improvements in the manufacture of card clothing for
covering the flats or bars of carding engines, the object being to increase the utility
of the flats by so covering and clothing them that each flat takes up an increased
quantity of fibre projecting from the cylinder and removes a greater percentage of
impurities or imperfections from the fibre, such impurities or imperfections being
retained and carried forward by the flats until removed by the stripper comb.
In the covering or clothing of card flats as hitherto all the flat has been covered
by wire teeth or dents of uniform length and that portion of the clothing nearest
the toe of the flat was only imperfectly utilized.
In flats covered and clothed according to this invention the ends of the flat are
not bevelled and the clothing is subdivided longitudinally into two or more classes
of card wire, each class performing its own and different operation from the other
wire clothed part and so increased utility of the whole is obtained.
According to this invention the flats or bars of the engine are covered or clothed
with a card fillet or strip, the teeth or dents forming the toe of the flat being of
different count and bend to the teeth or dents constituting the heel of the flat, and
if so desired from the other teeth in the body of the flat, and the teeth or dents of
the toe of the flat are slightly shorter than the teeth or dents of the heel so that
the surface formed by the points of the teeth or dents themselves is bevelled or
inclined and it is unnecessary to put any bevel on the ends of the flat as heretofore
and the flat or bar itself lies at right angles to the radius of the cylinder. The
short fibres or impurities are caught or taken up by the coarser and shorter dents
or teeth and are kept out of contact with the cylinder, whilst the longer fibres reach
to and are taken by the cylinder and carried forward to the doffer.
The different counts of dents or teeth may be set close together or with an inter-
vening space or blank between each as desired or thought necessary. Pins or teeth
are preferably fixed or placed along each edge of each flat, such pins or teeth pre-
venting impurities which may be lying between the teeth or dents of adjacent flats
from falling onto the cylinder.
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax,
Agents for the Applicant.

page_text: Improvements relating to Carding Engine Flats
We, ERNEST HANNAN GILLETT, of Crosse Hall Works, Chorley, late of Ridge-
wood, near Chorley, in the County of Lancaster, Cotton Spinner, JAMES FOGG,
of 8, Crosse Hall Street, Chorley, aforesaid, Foreman, and FREDERICK WHITLEY
THOMSON, of Brunswick Mills, Halifax, in the County of York, Card Maker, do
hereby declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
This invention relates to improvements in the manufacture of card clothing for
covering the flats or bars of carding engines, the object being to increase the utility
of the flats by so covering and clothing them that each flat takes up an increased
quantity of fibre projecting from the cylinder and removes a greater percentage of
impurities or imperfections from the fibre, such impurities or imperfections being
retained and carried forward by the flats until .removed by the stripper comb.
In the covering or clothing of card flats as hitherto all the flat has been covered
by wire teeth or dents of uniform length and that portion of the clothing nearest
the toe of the flat was only imperfectly utilized.
In flats covered and clothed according to this invention the ends of the flat are
not bevelled and the clothing is subdivided longitudinally into two or more classes
of card wire, each class performing its own and different operation from the other
wire clothed part and so increased utility of the whole is obtained.
Such being the nature and object of our said invention, the following is a com-
plete description of same, reference being had to the annexed drawing which
represents a flat clothed in accordance with this invention.
According to this invention the flats or bars 1 of the engine are covered or clothed
with a card fillet or strip 2, the teeth or dents forming the toe portion 3 of the
flat being of different count, or pitch, different thickness of wire, and different
bend to the teeth or dents constituting the heel portion 4 of the flat, and also if so
desired from the other teeth in the body of the flat, and the teeth or dents of the
toe portion 3 of the flat are slightly shorter than the teeth or dents of the heel
portion 4 so that the surface formed by the points of the teeth or dents themselves
is bevelled or inclined and it is unnecessary to put any bevel on the ends of the flat as
heretofore and the flat or bar itself lies at right angles to the radius of the cylinder.
The short fibres or impurities are caught or taken up by the coarser and shorter
dents or teeth and are kept out of contact with the cylinder, whilst the longer
fibres reach to and are taken by the cylinder and carried forward to the doffer.
The different groups of dents or teeth may be set close together, but preferably
with an intervening space or blank 5 between each, and in this space or blank 5
the coarser impurities such as cotton seeds and the like collect, and the heel and
combing portion 4 of the flat, that is, the portion clothed with the finer wire or
teeth operates chiefly in a combing capacity.
We have found in practice that if the teeth in the toe portion 3 of the flat are
what are known as 60 count and of 26 wire, and the teeth in the heel portion 4
are 120 count and of 32, wire satisfactory results accrue. The teeth in the heel
portion 4 are preferably bent at about an angle of 75° and the teeth in the toe
portion at an angle of 50°, but it will be obvious that different counts and thick-
nesses of wires may be employed and that the teeth may be bent at different angles
to that above specified and according to the fibres under operation.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
The use in combination with a flat carding engine of a flat the ends of which
are not bevelled said flat being clothed with a fillet the teeth or dents of which are
bevelled and one portion of different count or pitch, different thickness of wire,
and different bend to the teeth or dents of the remaining portions as and for the
purpose herein described.
ry 1899.
ERNEST HANNAN GILLETT.
JAMES FOGG.
FREDERICK WHITLEY THOMSON.
By their Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax,
d this 13th day of February 1899.
ERNEST HANNAN GILLETT.
JAMES FOGG.
FREDERICK WHITLEY THOMSON.
By their Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax,