Improvements in Fasteners for Stretching and for Securing Card Clothing to the Flats of Carding Engines.
Year: 1893

page_text: Date of Application, 1st Mar., 1893
Complete Specification Left, 29th Nov., 1893-Accepted, 30th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Fasteners for Stretching and for Securing Card
Clothing to the Flats of Carding Engines.
We GERBACIO PROTACIO APPLEYARD of Grafton House, Halifax, in the
County of York, Gentleman and LOUIS POHLMANN FOSTER, of Heath Royde,
Halifax, aforesaid, Gentleman do hereby declare the nature of this invention to
be as follows:-
This invention relates to fasteners for stretching and for securing card clothing
to the bars of flat carding engines, said fastener being specially designed for
application to bars having "rivet holes," but applicable to such bars generally.
According to this our said invention we employ a strip of metal, on one edge of
which are prongs at intervals of distance equal to the space between the rivet holes.
A series of square or rectangular holes are punched through the strip leaving
between the prongs and said holes a continuous plain piece, or part of the strip and
a plain piece or part of the strip beyond the squares.
In applying the fastener the prongs are pressed entirely through the foundation
fabric, thus forming a stretching instrument which on being pulled stretches the
foundation fabric until the points of the prongs enter the rivet holes and on being
pressed down secure the upper portion of the fastener with its plain piece or part
then folded down the
nearest the prongs lying on the foundation fabric the strip
outer edge of the bar and the several connecting parts left in punching out the
square or rectangular holes are received in vertical slots, recesses, or saw gates cut
at corresponding distances in the edge of the bar, the remaining plain piece or part
of the strip is turned under the bar completing the application of the fastener, and
as the said slots, recesses or saw gates are cut to a depth equal only to the thickness
of the connecting parts of the square or rectangular holes, the latter are flush and
even with the outer edge of the bar.
In cases of application of our improved clamp to old bars which have had their
edges reduced, the vertical slots, recesses or saw gates will of course not require
to be cut, nor the square or rectangular holes punched out.
In order to provide for inequalities of distances between the holes in the bars a
saw gate or fine slot is cut longitudinally along a central line of the holes so that if
a prong is not directly over a hole it will still be over the slit which it enters.
Such slit (or holes partly bore through the fastener) and the form of clamp
described are applicable to new bars or bars generally.
Where the flats have neither holes nor saw gates the prongs are passed through
the foundation fabric and folded backwards under the foundation in the direction
of the outer edges of the bar, and lie flat thereon thus construction of fastener is
as stated more specially designed for bars not having holes or slits but it may be
applied to bars having holes or slits. The fastener forming as heretofore stated a
stretching instrument.
11
1000

page_text: COMPLETE SPECIFICATION.
Improvements in Fasteners for Stretching and for Securing Card
Clothing to the Flats of Carding Engines.
We, GERBACIO PROTACIO APPLEYARD, of Grafton House, Halifax, in the
County of York, Gentleman, and LOUIS POHLMANN FOSTER, of Heath Royde,
Halifax, aforesaid, Gentleman, 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 fasteners for stretching and for securing
card clothing to the flats or bars of flat carding engines, the said fastener being
specially designed for application to bars or flats having "rivet holes," but also
applicable to such bars or flats generally.
Such being the nature and object of our said invention, the following is a
complete description of same, reference being had to the accompanying drawings,
in which :-
Fig. 1 is a front elevation of the improved fastener bent to the shape or form
assumed when in position on the flat, as shewn by Fig. 5.
Fig. 2 is an end view of Fig. 1.
rivet
Fig. 3 is an end view shewing the prongs passed through the edge or margin of
the foundation fabric, and ready for application to a flat in which there are
holes."
Fig. 4 shews the side of a flat with rivet holes.
Fig. 5 is an end sectional elevation of one side of a flat having rivet holes, the
foundation fabric of the card clothing being secured to such flat by means of the
improved fastener.
Fig. 6 is an end sectional view of a flat having rivet holes, and saw gate or
fine slot.
Fig. 7 is a plan view of Fig. 6.
"
Fig. 8 shews one side of a card fillet with the prongs of the fastener passed
through the foundation fabric.
Fig. 9 is a similar view, but shewing the prongs bent under the foundation fabric
so as to securely grip same.
Fig. 10 is an end sectional elevation of one side of a flat without rivet
holes, and shewing the card clothing secured thereto by means of our improved
fastener.
Fig. 11 is a view of the underside of a piece of card fillet shewing the prongs of
the fastener bent as in Fig. 9.
Fig. 12 is a similar view to Fig: 11, but the prongs are shewn with longer points
or tapered portions.
According to this our invention we employ a strip of metal 1, preferably mild
steel, and on one edge of such strip are punched or formed prongs 2 at
intervals of distance equal to the space between the rivet holes 3. 3 in a bar or
flat 4.
In applying the fastener, the prongs 2 and a very small portion of the edge of
the strip 1 are bent at, or nearly at, right angles (see Fig. 3) and the prongs 2 are
pressed entirely through the foundation fabric 5, thus forming a stretching
instrument which on being pulled, stretches the foundation fabric 5 until the points
of the prongs 2 enter the rivet holes 3. 3, and being pressed down, the upper
portion of the fastener with its plain piece or part between the prongs 2. 2, lies on
the foundation fabric 5; the strip is then folded down under the said bar, thus
completing the application of the fastener.
In order to provide for inequalities of distances between the holes 3. 3 in the
bars 4, a saw gate or fine slot 6 is cut longitudinally along a central line of the
holes 3. 3, so that if a prong 2 is not directly over a hole 3, it will still be over

page_text: the slit 6 which it enters. Such slits and the form of clamp described are applicable
to new bars, or bars generally.
When the prongs 2 are received in slots or saw gates 6, it will be obvious
that the length of the prongs 2 must be slightly less than the depth of the slot or
saw gate.
Where the flats 4 have neither holes 3 nor saw gates 6, the prongs 2 are passed
through the margin of the foundation fabric 5 (see Fig. 8) and folded backwards
under the foundation fabric 5 in the direction of the outer edges of the bar (see
Fig. 9) and lie flat thereon. This construction of fastener is, as stated, more
specially designed for bars not having holes, slots, or slits, but it may be applied to
bars having holes, slots, or slits.
In applying the fastening device, one side of the fillet is secured to the edge of
the flat or bar by means of the fastener and the prongs of the fastener for securing
the other edge of the fillet are passed through the margin of the fillet (and bent or
folded under if to be applied as shewn by Figs. 9, 10, and 11). This fastener forms
a stretching tool or appliance whereby the fillet can be stretched; and when
sufficiently stretched, the fillet is held by a presser. bar or other device, whilst the
remaining portion of the fastener is bent and folded around the edge of the fillet
and bar, and under the latter (see Figs. 8 & 10).
The prongs may be of the shape shewn by Fig. 1, or more pointed, as shewn by
Fig. 12, and in Fig. 1 we shew a small tooth 7 on the edge of the strip between
each prong 2, these teeth being used, if thought desirable, to prevent the foundation
fabric puckering or being drawn out between the prongs.
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 :-
(1.) The improved stretching fastener, consisting of the strip 1 and prongs 2,
when the latter are passed through the margin of the foundation fabric, and into
holes, saw gates, or slots in the face of the flat or bars, and the strip bent or folded
so as to enclose the edge of the foundation fabric and flat or bar, as herein
described, and as illustrated by Fig. 5 of the accompanying drawings.
(2.) The improved stretching fastener consisting of the strip 1 and prongs 2, where
the latter are passed through the margin of the foundation fabric, and bent under
such foundation fabric, and the strip bent or folded so as to enclose the edge of the
foundation fabric, and flat or bar, as herein described and illustrated by Fig. 10 of
the accompanying drawings.
Dated this 28th day of November 1893.
GERBACIO PROTACIO APPLEYARD,
LOUIS POHLMANN FOSTER,
By their Agent, Walter Brierley,
Penny Bank Chambers, Halifax.