Improvements in or relating to Methods of Securing Card-clothing to Iron Flats of Revolving-cards.
Year: 1895

page_text: Date of Application, 18th Dec., 1895
Complete Specification Left, 24th July, 1896-Accepted, 29th Aug., 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to Methods of Securing Card-clothing
to Iron Flats of Revolving-cards.
I, CARL ROTHE, Engineer, of Lagerhausstrasse No. 25, Aachen, in the Empire
of Germany, do hereby declare the nature of this invention to be as follows:-
:-
The methods hitherto employed for securing card-clothing to iron-flats of
revolving cards are insufficient or defective, partly in regard to the imperfect
means of fastening employed, and partly in regard to the waste of time the
inconvenience and expenses by sending such flats from the spinneries to the card
manufactories or other distant work places for their mounting with new card-
clothing. For mounting the clothing on the iron flats and for fastening the same
by metallic clamps, or other similar means, various machines of more or less
considerable size have been indispensable, too expensive for being generally
provided in spinning-mills.
The improvements forming the present invention permit the proper mounting of
the card-clothing on the flats, without the necessity of providing or transporting
such heavy large machines, and without loss of time and nevertheless with
complete security to be undertaken even in the spinning-mills.
The essence of the improvement is the insertion of a slightly-arched thin
metallic sheet between the card-clothing and the flat, so that the card-clothing
itself may first be fixed on the slightly arched metal-sheet by turning the edges of
the latter up over those of the card-cloth and pressing them down in the softer
material forming the basis of the card-clothing, so that a special application of
clamps on the two shorter sides or ends of the card-clothing, may be superfluous.
To this end the metal sheet is previously turned over at the edges. By a suitable
flattening out of the metallic sheet the card-clothing is stretched out, so that, using
the same depth of arching, all the flats are stretched in exactly the same degree,
an important advantage of this improvement.
For the purpose, then, of fixing the so prepared card-clothing upon the flats, all
along the metal-sheet, on both long sides, and at suitable short intervals, a number
of tongues are stamped out; for which could be substituted a corresponding
number of special pins or metal strips secured to the sheet.
In this form the card-clothing is delivered to the spinning-mills, on purpose to
be attached there by the tongues to the correspondingly pierced or notched flat,
said tongues being rivetted on the reverse of the flat, which is accomplished
without any great difficulty. By this improvement, quite different from the other
methods of securing, the stretching of the card-clothing is brought about by the
simple act of pressing down and attaching the metallic sheet to the flat.
The pressing down of the arched metallic sheet can be performed simultaneously
with the fastening, so that the attaching would be more complete and satisfactory.
By using the method of fastening by means of rivetting the tongues on the
reverse side, the flat must be pierced correspondingly. In order to get over this,
while otherwise retaining the process described, the securing of the metallic sheet
to the iron flat can be effected by soldering, instead of by the rivetting over of the
stamped tongues.
So it is evident that the improved process above-described distinguishes itself
by great simplicity and security in the method of fastening the card-clothing, and
great economy in dispensing with the transport of heavy large machines or flats

page_text: from one place to another, as well as by the great diminution in the time that the
carding machines are necessarily idle.
Dated this 18th day of December 1895
BOULT & WADE,
Agents for the Applicant.
Improvements in or relating to Methods of Securing Card-olothing
to Iron Flats of Revolving-cards.
I, CARL ROTHE, Engineer, of Lagerhausstrasse No. 25, Aachen, in the Empire
of Germany, 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:-
The methods hitherto employed for securing card-clothing to iron-flats of
revolving cards are insufficient or defective, partly in regard to the imperfect
means of fastening employed, and partly in regard to the waste of time the
inconvenience and expenses by sending such flats from the spinneries to the card
manufactories or other work places for their mounting with new card-clothing.
For mounting the clothing on the iron flats and for fastening the same by metallic
clamps, or other similar means, various machines of more or less considerable size
have been indispensable but are too expensive to be generally provided in
spinning-mills.
The improvements forming the present invention permit the proper mounting of
the card-clothing on the flats, without the necessity of providing or transporting
such heavy large machines, and without loss of time but nevertheless with
complete security and to be undertaken even in the spinning-mills themselves.
In the accompanying drawings
Figure 1 shows the section of the slightly arched thin metallic sheet, prepared
for taking up the card-clothing, with tongues stamped out.
Figure 2 shows the section of the metallic sheet after the fixing of the card-
clothing on the same.
Figure 3 shows the section of the mounted flat.
Figure 4 shows lengthwise a section of the metallic sheet, hereinafter
referred to.
Figure 5 is the plan of the mounted flat with the card-clothing on the metallic
sheet.
Figure 6 shows the reverse of the metallic sheet.
The essence of the improvement is the insertion of a slightly-arched thiu
metallic sheet a between the card-clothing 6 and the flat c, so that the card-
clothing itself may first be fixed on the slightly arched metal-sheet a Figures 1
and 2, by turning the edges of the latter up over those of the card-cloth, and
pressing them down in the softer material forming the basis d of the card-clothing,
so that a special application of clamps on the two shorter sides or ends of the
card-clothing b may be superfluous. To this end the metal sheet is previously
turned over at the edges as shown in Figure 1. By a suitable flattening out of
the metallic sheet a the card clothing is stretched out, so that, using the same
depth of arching, all the flats are stretched in exactly the same degree, an
important advantage of this improvement.
For the purpose of fixing the so prepared card-clothing upon the flats, all along
the metal-sheet, on both long sides, and at suitable short intervals, a number of
tongues are stamped out; for which could be substituted a corresponding number
of special pins or metal strips secured to the sheet a.
In this form the card-clothing is delivered to the spinning-mills, to be attached

page_text: there by the tongues to the correspondingly pierced or notched flat c, said
tongues being rivetted on the under side of the flat, as indicated by dotted lines.
at 1 Figure 4, which is accomplished without any great difficulty. By this
improvement, quite different, from the other methods of securing, the stretching of
the card-clothing is brought about by the simple act of pressing down and
attaching the metallic sheet a to the flat c.
Figure 5 shows the card-clothing already secured to the sheet-metal a as a
base; and
Figure 6 shows the said thin metallic sheet from the under side from which will
be seen the way in which the tongues are stamped out and bent at right angles..
But without making the manipulation of the fastening of the metallic sheet too
difficult, a partial, or even entire, stretching of the card-clothing and therefore the
pressing down of the arched metallic sheet can be performed simultaneously with
the fastening, so that the attachment would be more complete and satisfactory.
By using the method of fastening by means of rivetting the tongues on the
under side the flat must be pierced correspondingly. To avoid this, while other-
wise retaining the process described, the securing of the metallic sheet to the iron
flat can be effected by soldering, instead of by rivetting over of the stamped
tongues which latter is as shown at p in Figure 3. This method of fastening has
also the great advantage, that it is easily applicable to every system or kind of
flats.
It is evident that the improved process above-described is distinguished by
great simplicity and security in the method of fastening the card-clothing, and
great economy in dispensing with the transport of heavy large machines or flats
from one place to another, as well as by the great diminution of the time that the
carding machines are necessarily idle.
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 :-
A process for fixing card-clothing to flats wherein the clothing is first secured
upon a metallic sheet by turning the edges of the same over the edges of the said
card-clothing then regularly stretched by the flattening out of this arched or
curved metallic sheet and fixed on the flat by means of rivetting or pinning the
tongues or by soldering the two long sides of the flats.
Dated this 24th day of July 1896.
BOULT & WADE,
Agents for the Applicant.