Improvements in Revolving Flat Carding Engines for Carding or Combing Cotton, Wool, and other Fibrous Material.
Year: 1894

page_text: Date of Application, 17th Nov., 1894
Complete Specification Left. 6th Aug.. 1895--Accepted, 9th Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in Revolving Flat Carding Engines for Carding or
Combing Cotton, Wool, and other Fibrous Material.
I, JOHN THORNTON, of Westgate, Cleckheaton, in the County of York,
Machinist, do hereby declare the nature of this invention to be as follows:-
:-
My invention relates to the flats to which are attached the wire card tops used
for carding and combing cotton, wool, or other fibrous substances; and consists in
the first place, of making the said flats of a metal, or combination of metals
superior to the cast iron hitherto used, by which means I am enabled to reduce
the weight while increasing the strength, safety and durability of such flats,
especially by lessening the wear of the flexible bearings; and in the second place,
of making the said flats of a section suitable for use with my improved form of
clip, and in a method or mode of attaching the card or top to the flat, which
possesses many advantages.
f
I make my flats of one or more of the following metallic substances, viz. :-
wrought, rolled, or malleable iron, with or without case-hardened, or steel ends,
rolled steel or steel castings, being thereby enabled to harden the bearings for wear,
and increase the resistance to deflection.
My improved form of clip consists of a strip of iron or steel of section with
the usual serrated teeth formed upon it, but they are in an inverted position as
compared with the ordinary clip; being inserted from the tooth side of the wire
card top, and clenched at the back of the same, upon and in contact with the
face of the flat. Two of these clips being placed in position, the smooth edges are
bent over upon the edges of the flat, and thus securely fasten the top or card to
the flat.
Dated this 17th day of November 1894.
WILLIAM J. MUNDEN,
106 Priory Park Road, Kilburn, N.W.,
Agent for the Applicant.
Improvements in Revolving Flat Carding Engines for Carding or
Combing Cotton, Wool, and other Fibrous Material.
1, JOHN THORNTON of Westgate, Cleckheaton in the County of York, Machinist,
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 :-
My invention relates to the flats to which are attached the wire card tops used
for carding and combing cotton, wool, or other fibrous substances, and consists in the
first place of making the said flats of a metal or combination of metals superior to
the cast iron hitherto used, by which means I am enabled to reduce the weight
while increasing the strength, safety, and durability of such flats, especially by
lessening the wear of the flexible bearings; and in the second place, of making
the said flats of a section suitable for use with my improved form of clip, and in

page_text: I make the flats of one or more of the following metallic substances viz. :-
wrought, rolled, or malleable iron with or without case hardened or steel ends,
rolled steel, or steel castings, being thereby enabled to harden the bearings for
wear, and increase the resistance to deflection.
My improved form of clip consists of a strip of iron or steel of L section with
the usual serrated teeth formed upon it, but they are in an inverted position as
compared with the ordinary clip; being inserted from the tooth side of the wire
card top, and clenched at the back of the same, upon and in contact with the face
of the flat. Two of these clips being placed in position, the smooth edges are bent
over upon the edges of the flat, and thus securely fasten the top or card to
the flat.
In order that my invention may
in which :-
be fully understood I append a sheet of drawings
Fig. 1 is a plan of part of a flat.
Fig. 2 is an elevation of the same.
Fig. 2 is an end view of same.
Fig. 3 is a transverse section of my improved flat.
Fig. 4 is a section, and
Fig. 5 is an elevation of my improved form of clip.
Fig. 6 is a transverse section of a flat shewing a card attached to it by means of
my improved clips.
A is the web of the flat having a flange B formed integrally with it, and being
made of any convenient length, has the ends C shaped in any manner suitable for
attachment to the cylinder, but preferably of the shape shewn in Figs. 1, 2, and 2^.
The flange of the flat may be of a variety of shapes, but preferably the edges b
are dovetailed so as to form a good grip or holdfast for the clips when these are
bent over as shewn in Fig. 6. In general I make my flat of the section shewn in
Figs. 3 and 6, with a shallow groove or recess b' rolled or otherwise formed in the
flange on each side of the web A; by this means obtaining at once the dovetail
shaped edge preferred and securing lightness, without sacrificing strength and
durability.
I make my flats of either wrought, rolled, or malleable iron, rolled steel or steel
castings, and in general I temper or case barden the ends for the purpose of
securing a bearing suitable for hard wear, and possessed of rigidity sufficient to
prevent undue deflection of the flat.
My improved form of clip as shewn in Figs. 4 and 5 consists of a strip of mild
iron or steel having a web d, a flange d' bent over at nearly right angles thereto,
and serrated teeth 2 bent up from the flange so as to be approximately parallel to
the web. The card E being placed in position on the face of the flat as shewn in
Fig. 6, the serrated teeth are passed up through the card, and the upper edge d³ of
the web d of the clip is bent over and closed down until it assumes the position
shewn in Fig. 6; the card E is thus held firmly and securely to the flange B of the
flat. Two of these clips are used as shewn and they extend along the whole length
of each edge of the flat.
It will be seen that the principal difference between the clips as ordinarily used
for the purpose of attaching cards to flats, and my improved clips is that the
serrated teeth in the ordinary shape form part of the web d, and are bent down
upon the back of the flanges of the flat, but in my improved clip the teeth form
part of the flange d', and are bent and forced through the wire card, and press
upon the face of the flat.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what. manner the same is to be performed, I declare that what I
claim is :-
1. A flat as used in engines for carding or combing cotton, wool, and other

page_text: fibrous material, composed of either wrought, rolled, or malleable iron, rolled steel,
or steel castings.
2. A flat as used in engines for carding or combing cotton, wool, or other fibrous
material, composed of either wrought, rolled, or malleable iron, rolled steel, or
steel castings and having the ends which form the bearings either tempered or
case-hardened.
3. Attaching wire cards to flats used in engines for carding and combing cotton,
wool, and other fibrous material, by iron or steel clips which have their serrated
edges bent up and the serrations passing through the wire card so as to press the
card upon the face of the flat in the manner and for the purpose described and
shewn.
4. Clips for attaching wire cards to flats, substantially as described and shewn
with reference to Figs. 4, 5 and 6.
Dated this 6th der of August 1805
WILLIAM J. MUNDEN,
106 Priory Park Road, Kilburn, London, N.W.,
Agent for the Applicant.