Improvements in Carving
Year: 1899

page_text: Improvements in Carving I
I, TRAUGOTT GOLDBERG, of Neukirchen, on the Pleisse, Saxony, in the Empire
of Germany, Weaver, do hereby declare the nature of this invention to be as
follows:-
Carding machines as hitherto constructed are provided with a high speed or
stripping roller for lifting the fibres of the carding cylinder when the same
are driven too far into the teeth at the working places. This stripping roller
serves for the purpose of raising the fibres to the top of the teeth of the card so
as to enable the combing roller to act upon these fibres and condense them upon
the sliver. For this purpose the stripping roller is maile in form of a brush
covered by carding teeth which by their great elasticity and peculiar inclination
are enabled to completely enter the teeth of the carding cylinder and to raise
the fibres.
The stripping roller as hitherto constructed consisted mainly of a hollow
cylinder which is provided with separate strips of cards having long elastic teeth
set at a determined angle. The inclination of the teeth together with the high
speed of rotation of the roller effect the raising of the fibres. This however
causes a portion of the fibres to escape from the carding cylinder and to be taken
up by the stripping roller which it is impossible to prevent, for this high speed
of rotation induces a peculiar air current at the peripheral surface of the roller
and this air current attracts the light fibres and thus produced what is known as
entangling current" and causes the fibres to settle down unevenly.
These defects are obviated, according to this invention, by causing the teeth
of the stripping roller not as hitherto to approach the carding cylinder in the.
direction of a circular line but in a tangential line thereto.
Moreover this
arrangement enables a much larger number of teeth to engage in those of the
carding cylinder and therefore a slower rotation of the drum is possible which in
turn prevents the disturbing air current and consequent interference with the
fibres taking place.
.
This is effected by fastening the stripping teeth onto an endless leather belt
or hose or cloth or other suitable material may be used, of the same width as the
carding cylinder. This belt or hose is mounted on two rollers located one above
the other the first of which is larger in diameter and is driven from a pulley on
the shaft of the carding cylinder. The lower roller is rotated by the friction of
the belt or hose and is capable of adjustment in order to keep the said hose or
belt taut. The rotation of these rollers takes place in the direction left to right
and the stripping teeth remain in their normal position during the whole time of
their passage through the teeth of the carding cylinder.
In order to securely guide the stripping hose on the rollers the hose is provided
with narrow belts rivetted to and entering corresponding grooves in these rollers.
For cleaning the carding cylinder the two rollers with the stripping hose are
removed bodily which is possible by having the lower roller mounted in the
depending sides of the upper bearing,

page_text: A sheet iron covering extending the full width of the carding cylinder is
secured around the two depending side pieces so as to enclose the stripping hose
or belt.
Dated this 18th day of Mouch 1800
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Carding Machines,
I, TRAUGOTT GOLDBERG, of Neukirchen, on the Pleisse, Saxony, in the Empire
of Germany, Weaver, 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:-
Carding machines as hitherto constructed are provided with a high speed
roller for lifting the fibres of the carding cylinder when the same are driven too
far into the teeth at the working places. The roller serves for the purpose of
raising the fibres to the top of the teeth of the card so as to enable the doffing
roller to remove these fibres. For this purpose the roller is made in the form of a
brush covered by carding teeth which by their great elasticity and peculiar inclina-
tion are enabled to completely enter the teeth of the carding cylinder and to
raise the fibres.
The roller as hitherto constructed consisted mainly of a hollow cylinder which
was provided with separate strips of cards having long elastic teeth set at a cer-
tain angle. The inclination of the teeth, together with the high speed of rota-
tion of the roller effected the raising of the fibres. This however causes a portion
of the fibres to escape from the carding cylinder and to be taken up by the
roller, which, owing to the high speed of rotation it is impossible to prevent, a
powerful centrifugal air current is induced at the peripheral surface of the roller,
and this air current attracts the light fibres and thus produces what is known as:
entangling current" and causes the fibres to settle down unevenly.
.
These defects are obviated, according to this invention by interrupting the
centrifugal air-current at the place where the teeth of the roller leave those of
the cylinder.
i
To this end the teeth of the roller are arranged not as ordinarily, to leave
those of the cylinder by following a circular line, but so as to form a tangent
to the periphery of the cylinder. Moreover this arrangement enables a much
larger number of teeth to engage in those of the carding cylinder and this allows
the roller to be revolved much slower than heretofore; thereby preventing the
disturbing air-current and consequent interference with the fibres.
Referring to the accompanying drawings:-
Figure represents a sectional view of a roller as ordinarily used.
Figure 2 is a diagrammatic view illustrating the essential parts of my
invention.
Figure 3 is a side elevation of a carding machine.
Figure 4 is a longitudinal section of an apparatus constructed in accordance
with my invention.
The teeth are fastened onto an endless leather belt or hose, or cloth or other
suitable material may be used, of the same width as the carding cylinder d.
This belt or hose is mounted on two rollers 6 and located one above the other:
the first of which is larger in diameter, and is driven from a pulley upon the
shaft of the carding-cylinder d as shown in Figure 3. The lower roller is

page_text: revolved by the friction of the melt or hose and is adapted to be adjusted in its
bearings in order to keep the belt or hose taut. The rotation of these rollers
takes place in the direction indicated by arrows in the drawing. The teeth of
the belt or hose remain in their normal position during the whole time from
entering the teeth of the cylinder till leaving them owing to the tangential
direction of their motion.
In order to securely guide the hose on the rollers, the hose is provided at both
ends with narrow guide-belts gg rivetted to it and entering corresponding
grooves in the rollers b and c.
For cleaning the carding cylinder the two rollers with the hose are removed
bodily which is rendered possible by having the lower roller mounted in the
depending sides of the upper bearing.
A sheet-iron covering extending across the full width of the carding cylinder
connects the two depending side-pieces and also serves to protect the hose or belt.
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:
A fibre raising apparatus for carding machines, characterized by being furnished
with a toothed surface extending the full width of the carding cylinder and
arranged to pass over two rollers in such a manner as to prevent the escape of the
carded fibres by causing the centrifugal air current in connection with an ordinary
roller to strike the carding cylinder in a tangential direction thus avoiding the
centrifugal action of the air current at the point where the teeth disengage from
the carding cylinder substantially as hereinbefore described and illustrated in the
accompanying drawings.
Dated this 5th day of December 1899.
HASELTINE, LAKE & Co..
45, Southampton Buildings, London, W.C., Agents for the Applicant.