Year: 1886

page_text: I, BENJAMIN GUSTAVE ERNEST PIERROT, of 1, Boulevard Saint-Denis, Paris,
France, Manufacturer, do hereby declare the nature of this Invention to be as
follows:-
My Invention has for its object improvements in the manufacture of metallic
cards, teasels, or combs, and these improvements consist, in the first instance, in
applying upon the back of the metallic cards, teasels, or combs, as ordinarily
constructed, a strip of strong linen, the two sides of which are coated with a layer
of india rubber. In order to carry this operation into practice, I apply a layer of
india rubber upon the back of the card after it has been trimmed and provided
with pins, and I likewise apply a coating of benzine upon one side of the linen
strip which has been covered with india rubber, this linen strip being subsequently
applied upon the card and caused to adhere thereto, so that the two fabrics may
form a single one.
My Improvements further consist in inserting between the above mentioned
linen strip, and the back of the metallic card, teasel, or comb, a band of linen, felt,
or other suitable fabric, of a convenient thickness, say between and 3/m, in
order that the card, after having been wound upon a cylinder, shall present a
convex form at its centre.
My Invention is applicable to all metallic cards, teasels, or combs used in the
preparation of woollen and velvet fabrics for raising the nap or pile of the same,
for brushing purposes, and for other operations in which metallic teeth, although
mounted upon a solid strip, require to possess a great amount of elasticity, and it
is further applicable to all cards used in spinning.

page_text: Improvements in the Manufacture of Metallic Cards, Teasels,
or Combs.
I, BENJAMIN GUSTAVE ERNEST PIERROT, of 1, Boulevard Saint-Denis, Paris,
France, Manufacturer, 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, that is to say :-
My Invention has for its object improvements in the manufacture of metallic
cards, teasels or combs, and these improvements consist, in the first instance, in
applying upon the back of the metallic cards, teasels or combs, as ordinarily
manufactured, a strip or band of strong linen, the two sides of which are coated
with a layer of india rubber. In order to carry this operation into practice, I apply
a layer of india rubber upon the back of the card after it has been trimmed and
provided with teeth, and I likewise apply a coating of benzine upon one side of
the linen strip which has been covered with india rubber. I then apply this
linen strip to the card, and it adheres thereto immediately so that the two fabrics
form but a single one.
My improvements further consist in interposing or inserting between the above
mentioned linen strip and the back of the metallic card, teasel or comb, a band of
linen, felt or other suitable fabric, of a convenient thickness, say between half
a millimetre and three millimetres, in order that the card, after having been
wound upon a cylinder, shall present a convex form at its centre.
The advantages derived from the application of this linen strip coated with
india-rubber upon the back of the cards, teasels or combs, are the following:-
1. It entirely obviates the elongation produced in all the ordinary metallic
teasels, which elongations necessitated the constant restretching of the fillet card.
2. The card clothing will last a considerably longer time than heretofore, while
the work executed is more regular.
The above results were not obtainable with cards as heretofore manufactured ;
as the linen and india rubber fabric upon which the brass or metallic teeth were
mounted required to be as thin as possible in order to possess great elasticity and
were consequently weak, especially on account of the holes formed in this linen
for setting the teeth; hence, these cards became elongated and often broke.
Moreover, when it was required to make the said linen strip adhere upon a
cylinder, the teeth being held at their base in a hard substance, broke after a
few days use.
In the improved cards manufactured according to this invention, the teeth are
held at their base between two linen strips or bands coated with india rubber and
thus retain their elasticity, and the card preserves its strength.
Such cards may then be readily made to adhere upon cast or wrought iron
cylinders or on wooden cylinders by means of a solution of india rubber or of any
other adhesive substance thus enabling them to last longer and to operate with
greater regularity than heretofore while they do not become elongated.
My invention is applicable to all metallic cards, teasels or combs, used in the
preparation of woollen and velvet fabrics for raising the nap or pile of the same,

page_text: for brushing purposes, and for other operations in which metallic teeth, although
mounted upon a soiled strip, require to possess a great amount of elasticity, and it
is further applicable to all cards used in spinning.
The advantage derived from the interposition or insertion between the linen
strip coated with india rubber and the back of the card, of a linen or felt band of
from 5 to 10 millimetres in width, is that the cards thus manufactured perform
their work more thoroughly and with greater power than ordinary cards, while
they are thoroughly impressed in the fabrics so as to efficiently spread the folds
thereof. The work accomplished by these cards is therefore more regular and
more rapid than that of ordinary cards.
Having now described the said invention, and in what manner the same is to
be performed, I declare that I claim :—
1. The application, upon the back of metallic cards, teasels or combs, manufactured
by ordinary processes, of a strip of strong linen the two sides of which are coated
with india rubber, as and for the purposes hereinbefore described.
2. The interposition or insertion between the coated linen strip and the back of
the metallic card, teasel or comb, of a band of linen, felt or other fabric of a
thickness varying from half a millimetre to three millimetres, for the purpose of
forming a convexity in the centre of the card when wound upon a cylinder, as
herein described.