Year: 1887

page_text: Date of Application, 25th Apr., 1887.
Complete Left, 22nd June, 1887
Complete Accepted, 2nd Sept., 1887.
I WILHELM KAULHAUSEN Manufacturer of leather belts of Aix-la-Chapelle in the
kingdom of Prussia and German Empire do hereby declare the nature of this
invention to be as follows:-
The "leathers" of carding or combing machines for operating upon spinning
materials, such as wool, cotton, hair, and similar materials, have hitherto usually been
made with smoothed or ribbed surfaces. These leathers" have however the
disadvantage that they do not catch the separate staples of the material in the desired
manner nor group them together as required, because their surface is too smooth. An
attempt has therefore been made to make the leathers rough on the working surface.
The desired purpose was however only attained for a short time, inasmuch as by the
continuous rubbing of the leathers against each other, their respective surfaces in a
short time became smooth again.
In order therefor to get over this difficulty in a permanent manner, I use "leathers"
of pinked or perforated leather.
The pinkings or perforations may be square, rectangular, circular or of any suitable
shape, and may be placed in rows or opposite each other according to the character
of the material and the length of the staples.
The effect of this pinking is that the various staples of the wool are caught more
firmly and the desired purpose is thereby attained.
Instead of pinking the "leathers," mere indentations may be made in the described
position and manner, only reaching to a certain depth in the thickness of the leather.
Dated this 25th day of April 1887.
TONGUE & BIRKBECK,
34, Southampton Buildings, London, W:C.
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Leathers for Carding or Combing Machines.
I, WILHELM KAULHAUSEN Manufacturer of leather belts of Aix-la-Chapello in
the Kingdom of Prussia and German Empire 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 "leathers" of combing machines for operating upon spinning materials such
as wool, cotton, and similar materials have hitherto usually been made with smooth
or ribbed surfaces. These "leathers" have however the disadvantage that they do
not catch the separate staples of the material in the desired manner nor group them
together as required because their surface is too smooth. An attempt has therefore
been made to make the leathers rough on the working surface. The desired purpose
was however only attained for a short time inasmuch as by the continuous rubbing of
the leathers against each other their respective surfaces in a short time became smooth
again. In order therefore to get over this difficulty in a permanent manner I use
pinked or perforated leathers mounted on axes or rollers advantageously having a
lateral motion.
And in order that my invention may be the more clearly understood and readily
carried into practice I will proceed to describe the same with reference to the
accompanying drawings, Figure 1 of which shows a leather having my improve-
ments applied and in Figures 2, 3, 4, & 5 the various pinkings or perforations made
in accordance with my invention.
any
The pinkings or perforations may be square, rectangular, circular or of suitable
shape and may be placed in rows or opposite each other as shown in Figures 2, 3,
4, & 5 of the accompanying drawings according to the character of the material and
the lengths of the staples.
The effect of this pinking is that the various staples of the wool are caught more
firmly and the desired purpose is thereby attained.
Instead of pinking the "leathers" mere indentations may be made in the described
position and manner only reaching to a certain depth in the thickness of the
leather.

page_text: My invention is more particularly applicable to the drawing off leathers of
combing machines and I make no claim herein for its application to carding-engines
as I do not find it can be advantageously used in connection therewith.
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. In combing machines the use and application of "leathers" which have
pinkings, perforations or indentations of any suitable form and arrangement sub-
stantially in the manner and for the purpose herein before described and represented
in the accompanying drawings.