IMPROVEMENTS IN FABRICS FOR COVERING HEATED SURFACES
Year: 1885

page_text: I, HENRY W
JOHNS of 87 Maiden Lane in the City of New York, State
of New York, one of the United States of America, Manufacturer, do hereby
leclare the nature of my invention for "IMPROVEMENTS IN FABRICS FOR COVERING
HEATED SURFACES and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:―
"3
I, HENRY W- _ JOHNS of 87 Maiden Lane in the City of New York, State
of New York, one of the United States of America, Manufacturer, do hereby
declare the nature of my invention for "IMPROVEMENTS IN FABRICS FOR COVERING
HEATED SURFACES and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:―
33
Figure 1 is a sectional view of the fabric at right angles to the loose rolls.
Figure 2 is a perspective view of the fabric.
Figure 3 is a view of a sheet used in making the fabric.
Figure 4 is a perspective view of a fabric woven from the rolls and corrugated
sheet.
Figure 5 is a section of a modification.
Figure 6 is a section of the same shewing a joint.
Figure 7 is a modification showing the corrugations only partially filled.
Figure 8 is a section of a modification.
Figure 9 is a face view of another modification.
Figure 10 is a like view of another modification.
Figure 11 is a cross section of a modification of Figure 10.
Figures 12 and 13 show the manner of adding strengthening strips or threads to
the sheet.
This invention relates to a new and useful fabric for covering heated surfaces or
surfaces to be protected from radiation or great heat; and consists of a combination
of a paper sheathing or sheet with a covering of loose and compressible rolls or
ropes of fibrous material, and the various combinations hereinafter specified and
claimed.
In carrying out this my invention a piece of heavy paper or sheathing is
corrugated as shown at A in Figure 1 and within the corrugations on either side
are placed the rolls ropes or bats B B and C C. These rolls or bats may be retained
in their position by glue cement sewing or tying or may be placed in position as
the paper or sheathing is applied to the surface to be covered.
The rolls or bats may be used on either one or both sides of the paper or
sheathing, but a more serviceable fabric is made when all the corrugations on each
side of the sheet are filled.

page_text: The fabric may be made as shown in Figure 2 where the corrugated sheet A is
combined with the continuous rope or batting B which continues from one edge of
the sheet to the other filling a corrugation first on one side and then the adjacent
corrugation on the other side of the sheet.
The paper sheathing or sheet may be made with an edge having notches on it or
scalloped edges as shewn in Figure 3 where the notches are shown by D; this paper
sheathing or sheet is so corrugated that the notches will form the sides of the
corrugations and not the top or bottom thereof whereby the core or batting will
pass from one corrugation to the next through one of the notches D and be thereby
held in its place in the corrugations or the sheet may be plain or indented instead
of corrugated but provided with scalloped or notched edges and the cord or batting
fitting into the notches or scallops at the edges of the sheet. The bats or batting
may be fastened by glue or in any suitable manner..
Figure 4 is a perspective view of a fabric made of several pieces of the corrugated
paper sheathing or sheet A A combined with the cord or batting B so as to form
a woven like fabric the strips of paper or sheathing acting as a warp.
The piece A is over B and under B¹, over B2 and under B³, and A¹ is under B
and over B₁ under B2 and over B³ and A2 is in the same relation as A and so
alternating throughout and making a firm and strong fabric more pliable than when
a continuous sheet of paper or sheathing is used.
The several pieces and parts may be attached to one another by glueing cement
or in any appropriate manner if desired.
To the faces or either of the faces may be fastened a sheet of asbestos or other
paper or cloth or metal sheet or other suitable sheet as shown in Figure 5 where
the corrugated sheet is shewn by A the rolls or ropes by B and the sheets attached
by E and F. The sheets E and F may be extended beyond the edge of the fabric
to which they are applied so as to form flaps e and f and if desired attached to
E and F respectively by glue or cement thereby binding the whole into a compact
fabric, or these flaps may be left free and fastened to the edge of another like fabric
so as to make a continuous sheet as at Figure 6.
Two or more of any or either of these fabrics may be placed together face to face
so as to increase the thickness and glued cemented sewed or otherwise fastened to
one another into a firm fabric.
The corrugated paper sheathing or sheet may have the corrugations only partially
filled at short intervals by pieces or tufts as shewn in Figure 7 where A is the paper
or sheathing and G G represents the tufts or short pieces or masses of fibrous
material, or pieces of cement or any suitable material which divide the space in the
corrugations into sections.
Instead of a corrugated sheet I may use a plain sheet and to the surface of the
plain sheet may be attached the tufts or blocks, at intervals, so as to raise the
surface of the sheet from contact with whatever it may be laid upon.
The fabric may be made by fastening to either or both sides of a plain sheet of
paper sheathing or other sheet, the loose roll rope or bat so that they completely
cover the surface or surfaces thereof as shown in Figure 8 wherein A represents the
paper or sheathing and B the roll or ropes; the paper may be flat and even or
indented or corrugated.
The rolls or ropes are glued or otherwise fastened to the surface of the paper or
sheathing or may be sewed thereto by sewing through the whole.
When a plain paper is used for this purpose the rolls or ropes may be placed so as
to run in a different direction on the two opposite sides of the paper if desired.
The rolls or ropes may be placed on the paper sheathing or sheet in a serpentine
or other form so as to form spaces or chambers between them as shown in Figure 9,
the rolls may be attached to the sheet at short intervals from one another and the
space between them divided into sections by cross pieces as shown in Figure 10
dividing the surface of the sheet into square or oblong divisions.
There may be
'one or more layers of the rolls or ropes placed over the first so as to close or divide

page_text: the air-chambers left between the rolls or ropes first attached to the sheet of
sheathing as shown in Figure 11, or to form a material of greater thickness.
The roll rope or batting used in making the above described fabric may be
composed of asbestos broken into a fibrous condition and formed by rolling or
twisting into the desired form, or it may be asbestos mixed with mineral wool,
hair, wool or other fibrous substance, or any fibrous material alone or mixed with
other fibrous material.
The paper sheathing or sheet may be asbestos paper or sheathing or paper or
sheathing of other material, or sheet metal, or cloth or felt.
When the fabric is to be exposed to great heat it is preferred to have the paper
and roll or rope each of pure asbestos.
Whatever material is used in making the fabric may be coated or saturated with
a fireproof composition or a binding or stiffening material or both, during manu-
facture, when manufactured or when applied, to form a stiff sheet which will hold
it in place or when if dried in a cylindrical form may be sprung on pipes.
The loose rolls may be saturated with a hardening substance before manufacture
into a fabric if desired. I have found a silicate of soda give good results, but many
other materials may be used for the purpose.
For the loose and compressible roll or rope may be substituted a hard cord roll
or rope or strip, but a loose roll or rope is preferred.
Instead of the fibrous roll or rope, a roll or rope made of strips of asbestos paper
or board may be used which should be twisted into a rope like form.
The loose cord or rope may have within it a core or strengthening piece of wire
or strong cord to keep it from stretching or breaking.
The sheets may have fastened to them other sheets or cords or wires to give an
increased strength, and the corrugated sheets may have cords wires or strips
passing through the corrugations so as to hold them in place as shown in Figure 12,
or wires cords strips or other sheets may be attached as shewn in Figure 13, a and
b, wherein A represents the sheet and m the cord strip or sheet attached.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. As a new article of manufacture a fabric composed of a sheet having attached
to the surface thereof rolls or ropes of fibrous material substantially as specified.
2. The combination in a fabric of a corrugated sheet and rolls or ropes contained
in the corrugations substantially as specified.
3. The combination in a fabric of a sheet having notched edges and rolls or ropes
covering the surface and fitting into the notches substantially as specified.
4. The combination in a fabric of a corrugated sheet having notched edges and
rolls or ropes fitting into the corrugations and notches substantially as specified.
5. The combination of a sheet with rolls or ropes attached to one or both surfaces
the sheet extending at the sides beyond the covering substantially as specified.
6. The combination in a fabric of a sheet with wads or tufts attached to the
surface thereof as specified.
7. The combination in a fabric of a corrugated sheet with blocks or wads at
intervals in the corrugations as specified and set forth.
8. The fabric consisting of rolls or ropes woven with strips of paper sheathing
or other sheet substantially as specified.
Dated thin 6th 1
1000
CARPMAEL & Co.,
Agents for the Applicant.