Improvement in Singeing Surfaces for Singeing Woven Fabrics, Yarns, and the like.
Year: 1899

page_text: Date of Application, 8th May, 1899-Accepted, 10th June, 1899
0
COMPLETE DIEUIT
n Improvement in Singeing Surfaces for Singeing Woven Fabrics,
Yarns, and the like.
I, JACQUES LEONTIEFF, of No. 4, Franklin Strasse, Mülhausen, Alsace, Germany,
o hereby declare the nature of this invention and in what manner the same is
o be performed, to be particularly described and ascertained in and by the
ollowing statement:―
Singeing machines such as are at present used for singeing the loose fibres off
arns, woven fabrics, and the like, consist when leaving out of consideration gas
ingeing machines, according to one mode of construction of one or more metallic
surfaces which are heated to a red heat by the combustion of fuel such as naphtha,
wood &c., and over which the material to be singed is passed, such heated surfaces
may be of a more or less semi cylindrical form, and be built into the brickwork
above the fire, so that the latter strikes against the underside thereof. Such
plate singeing machines."
machines are generally called "
According to another construction such machines are made as hollow metal
cylinders through which flames or hot gases are made to pass while the cylinder
is maintained in continuous rotation, so that the goods to be singed which are
passed in contact with the outer surface of the cylinder, are always brought in
contact with fresh parts of its surface.
These machines are called "cylinder singeing machines."
In the following description of my invention I will refer to the first kind of
singeing surface as the "plate" machine and the second one as the "cylinder."
The above mentioned advantage obtained with the "cylinder" machine, namely
contact of the goods with freshly heated surfaces, is also obtained in the plate
machine by so arranging the guide rollers over which goods are led, as to auto-
matically change their position relatively to the heated plate.
The heated singeing surfaces, whether of the plate or the cylinder kind, have
heretofore always been made with a smooth surface.
My present invention is based upon the observation that the singeing of the
goods is effected the more readily, the more the air has free access to the part
under treatment; it consists in facilitating such access of the air by forming
the heated surface, whether plate or cylinder, with grooves or projections, so
that between the goods, which only touch the projecting parts, and the red hot
singeing surface channel-like spaces are formed, which allow of access of the air
to the small burning fibres or hairs and thus greatly facilitate the burning
thereof.
These projections or recesses on the red hot surface may be of very varied
arrangement and form. The singeing surface may be provided with projections
or ribs extending transversely of the direction of travel of the goods, or in
helical, zig-zag, or serpentine form &c. The ribs may themselves be of varied
forms, such as angular, rounded and of a greater or less height and breadth.
Instead of making the projections of a rib form, they may be of a stud-like.
lense or round shaped form &c., in fact all possible forms may be used that will
fulfil the main condition, namely to facilitate the access of the air as described.

page_text: Although the projections or recesses are not limited to any particular geome-
trical form as above stated, it is nevertheless advantageous to impart to them as
simple a form as possible for facility of manufacture such, as in casting the plates
or cylinders. Also the necessary elasticity of the heated surface has to be
considered, so that in expanding or contracting under variations of temperature,
the surfaces may not be damaged.
The height of the ribs is preferably made about from 05 cm. to 1 c.m. with
a width of about 2 c.m., and spaces of about the same dimension.
The plates or cylinders can also be formed with corresponding projections or
recesses on their inner surfaces in order that the conduction of the heat may be
facilitated.
By way of example several forms of such plates and cylinders are shewn on
the accompanying drawings.
Fig. 1 of the accompanying drawings shews a cross section of a plate d formed
with ribs of a rectangular section, preferably. c.m. high and 2 cm. broad. Such
a plate can be made of cast iron, copper, or other suitable material. The guide
rollers a and b for the goods e can be so arranged in any known manner that their
position relatively to the heated plate d is automatically changed, so as to bring
the goods in contact with freshly heated parts.
Fig. 2 shews a plan of the plate.
Fig. 3 shews a cross section of a plate d with ribs of a rounded or undulating
form, the inner surface being made with corresponding undulations.
L
Such plates, can, with advantage, be made of corrugated sheet metal. The
guide rollers a and b may be arranged as described with reference to Fig. 1.
Fig. 4 shews a cross section of a cylinder f with rounded ribs, and smooth inner
surface.
The cylinder is made to rotate, the guide rollers a, b and c over which the
goods e pass, being carried in stationary bearings.
t
The cylinders can of course also be made in a similar manner to the plates, (such
as of corrugated sheet metal) and the surface of the plates. can be made similar
to that of the cylinder.
Singeing machines provided with plates or cylinders constructed according to
my above described invention have double the useful effect of machines of present
construction.
Each rib operates almost to the same extent as the entire plate with smooth
surface such as at present employed, in as much as the burning of the fibres or
hair is not effected where the goods touch the plate but where they are about
1 m.m. away therefrom. The improved construction of such machines therefore
affords the great advantages of increased output, and very considerable saving
of fuel.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
In machines for singeing woven fabrics yarns, and the like, the use of heated
singeing plates or cylinders of any form or kind, the operative surfaces of which
are formed with projections or recesses of any arrangement or form, for facilitating
the access of air to the material to be singed, substantially as described.
1 00
1
P
1000