Year: 1886

page_text: Date of Application, 19th Nov., 1886.
Complete Left, 19th Aug., 1887.
Complete Accepted, 20th Sept., 1887.
We GEORGE ASHWORTH and ELIJAH ASHWORTH of the firm of Ashworth Brothers
of the Moss Brook Works Collyhurst, Manchester, in the County of Lancaster
Engineers, do hereby declare the nature of this Invention to be as follows:-
Our Invention relates to the wire cards which are employed in the carding of
fibrous materials as is well understood and has for its object to obtain cards having
very fine or so called needle points. Previously to our invention the wire from
which the card dents have been formed has in some cases been flattened at intervals
by means of pressing. dies or rollers which have operated in concert with other
ordinary parts of the card setting machine and the length of wire to form each dent
has been obtained by severing the wire at a point which has been about the centre of
the flattened portion. When such length of wire has been bent into the ordinary
staple form the two limbs of the staple have been flattened from the bend or there-
abouts to the point the flat sides of the two limbs being parallel one with the other.
This flattening whilst increasing the clearance has had the effect of increasing the
breadth of the wire in the direction of its working movement so that when ground
ready for use the ends of the dents have resembled the ends of knives rather than the
points of needles. When making the card dents in accordance with our invention we
flatten the wire at intervals as it passes through or to the setting machine but the
flattening dies or rollers are arranged to act at right angles to the direction of action
of the dies or rollers formerly used as aforesaid so that when the length of wire is
severed and bent into the staple form the flattened sides on the two limbs are in line
or in the same plane instead of being parallel one with the other as aforesaid that is
to say taking the case of a fillet set with our improved dents the flat sides would be
parallel with a line across the breadth of the fillet instead of being parallel with the
edges of the fillet. And when the card would be at work the said sides would be at
right angles to the direction of movement. The card so made would be less efficacious
for its intended use than the ordinary card if not subjected to a further process
whereby the edges of the flattened dents are ground or cut away to the required
extent so as to reduce the ends of the dents to as fine a point as can be obtained by

page_text: the process of grinding. For this purpose we prefer to employ revolving emery
discs such for example as we use when carrying into effect a former invention for
which we have obtained Letters Patent bearing date the fourth day of November in
the year 1880 and numbered 4507. We may use the said discs in the manner
indicated in the Specification of the said invention but revolving emery discs may be
employed otherwise than in the manner so indicated so long as they are caused to
penetrate into the spaces between the dents whilst the card is moved in the direction
of its working movement or thereabouts so that the edges of the flattened ends of the
dents shall be ground away to a suitable extent to produce the desired tapering ends
or needle points. Any grinders other than emery discs may be used for the purposes
of our invention so long as the said grinders are capable of grinding abrading or
cutting away the edges of the flattened dents or staple ends so as to obtain the
indicated result. By the use of the terms "flat" and "flattened" we do not exclude
alterations of the sectional form of the wire by pressure which will reduce the sectional
dimensions of the wire in the indicated directions without producing actually flat
surfaces upon the wire.
Dated this 18th day of November 1886
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.

page_text: Improvements in and in the Manufacture of Wire Cards.
We GEORGE ASHWORTH and ELIJAH ASHWORTH of the firm of Ashworth Brothers
of the Moss Brook Works Collyhurst, Manchester, in the County of Lancaster,
Engineers, 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 and accompanying drawings :-
Our Invention relates to the wire cards which are employed in the carding of fibrous
materials as is well understood and has for its object to obtain cards having very fine
or so called needle points. Previously to our invention the wire from which the card
dents have been formed has in some cases been flattened at intervals by means of
pressing dies or rollers which have operated in concert with other ordinary parts
of the card setting machine and the length of wire to form each dent has been
obtained by severing the wire at a point which has been about the centre of the
flattened portion. When each length of wire has been bent into the ordinary staple
form the two limbs of the staple have been flattened from the bend or thereabouts to
the point the flat sides of the two limbs being parallel one with the other. This
flattening whilst increasing the clearance has had the effect of increasing the breadth
of the wire in the direction of its working movement so that when ground ready for
use the ends of the dents have resembled the ends of knives rather than the points of
needles. When making the card dents in accordance with our invention we flatten
the wire at intervals as it passes through or to the setting machine but the flattening
dies or rollers are arranged to act at right angles to the direction of action of the
dies or rollers formerly used as aforesaid so that when the length of wire is severed
and bent into the staple form the flattened sides on the two limbs are in line or in the
same plane instead of being parallel one with the other as aforesaid that is to say
taking the case of a fillet set with our improved dents the flat sides would be parallel
with a line across the breadth of the fillet instead of being parallel with the edges of
the fillet and when the card would be at work the said sides would be at right angles
to the direction of movement.
The form of the staple so flattened will be best understood when reference is made
to the accompanying sheet of drawings in which Fig. 1 is an enlarged view of the
flattened staple. It will be seen that each limb of the staple is flattened from about
the bend at a to the point at 6 the flattened surfaces being in two planes at the back
and front of the staple. A card made with staples of such a form would be less
efficacious for its intended use than the ordinary card if not subjected to a further
process whereby the edges of the flattened dents are ground or cut away to the
required extent in the manner indicated in Fig. 2 so as to reduce the ends of the dents
to as fine a point as can be obtained by the process of grinding. In Fig. 2 the dotted
lines at c indicate the portions of the staple which are cut away in the grinding. In
the grinding operation we prefer to employ revolving emery discs such for example

page_text: as we use when carrying into effect a former invention for which we have obtained
Letters Patent bearing date the fourth day of November in the year 1880 and
numbered 4507. We may use the said discs in the manner indicated in the
specification of the said invention but revolving emery discs may be employed
otherwise than in the manner so indicated so long as they are caused to penetrate
into the spaces between the dents whilst the card is moved in the direction of its
working movement or thereabouts so that the edges of the flattened ends of the dents
shall be ground away to a suitable extent to produce. the desired tapering ends or
needle points. Any grinders other than emery discs may be used for the purposes of
our invention so long as the said grinders are capable of grinding abrading or cutting
away the edges of the flattened dents or staple ends so as to obtain the indicated
result. The full lines in Fig. 2 indicate the form of the staple after it has been so
ground at the sides of the limbs. When a card composed of such staples is sharpened
in the ordinary manner as for example by means of a revolving emery grinding roller
the dents of the card will possess very keen points. By the use of the terms "flat"
and flattened we do not exclude alterations of the sectional form of the wire by
pressure which will reduce the sectional dimensions of the wire in the indicated
directions without producing actually flat surfaces upon the wire.
22
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
(1) The card dent flattened at the back and front and ground at the two sides so as
to have a long tapering point substantially as set forth and indicated.
(2) A wire card composed of staples which have been flattened at the back and
front by pressure and after insertion in the foundation have been ground at the sides
so as to have long tapering points as set forth and indicated.
(3) In the manufacture of wire cards flattening the wire at intervals and bending
the wire so that the flat places appear on the back and front of the staple as indicated
in Fig. 1 and subsequently grinding away the sides of the dents so as to produce the
form indicated in Fig. 2.
1000
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.