Improvements in and relating to Condenser Carding Engines.
Year: 1896

page_text: Date of Application, 13th Feb., 1896-Accepted, 4th Apr., 1896
COMPLETE SPECIFICATION.
Improvements in and relating to Condenser Carding Engines.
We, BENEDICT VON HARENNE and EDMUND SCHWILDEN trading together
as B. von Harenne and Schwilden of 9 Gottfriedstrasse, Aix-la-Chapelle in the
German Empire Leather Manufacturers 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:-
Our invention relates to improvements in the rubbing leathers of condenser
carding engines, which usually consists of two opposing bands or surfaces, faced
with leather or leathers and travelling in different directions to each other and
which together operate to form the wool into yarns or threads. The said leather
or leathers have hitherto been roughened upon their faces by forming therein rows
of sunken or intaglio recesses to create greater frictional contact with the more or
less greasy wool, but it has been found in practice that such recesses or grooves
harbour dust and dirt (always present to a greater or lesser degree in all such
machines) the accumulation of which necessitates frequent brushing or otherwise
cleaning of the leathers to the detriment of the life of these, and the loss of time
and labour in consequence.
Our invention has for its object to overcome the said accumulation of dirt and
dust which we attain by so forming the leathers upon the said surfaces or by
cementing or otherwise fixing to each of the said bands a series of suitably disposed
upstanding or vertical projections or studs, made of leather or other resilient
material, by means of which the travel of the wool across and between these
operates to keep each surface free from dirt and dust.
Referring to the accompanying drawings, Fig. 1 is a plan view of one or either
of said surfaces according to our invention, Fig. 2 being a section of the same.
For the purposes of our invention we attach by cement or any suitable means
to the faces of the usual two travelling bands or surfaces b. any number of suitably
disposed raised or upstanding studs or projections such as a, made of leather or
other resilient material, and of any desired shape or configuration, but we prefer
to make these cylindrical in plan as shewn by Fig. 1, each with a convex or cameo
crown as shewn by Fig. 2, or in lieu of affixing such studs or projections to the said
bands, the bands themselves may be of leather or other resilient material, the
faces of each of which may be so formed as to provide equivalents for the studs or
projections a.
By so placing or forming the said upstanding portions a upon the surfaces 6 in
the manner shewn by Fig. I we obtain continuous rows transversally, longitudinally
and diagonally with b, therefore if the two surfaces beach have upstanding
portions a suitably disposed relatively to each other, and travel across each other
at the usual or other suitable angle, the twisting motion would be imparted to the
wool in the usual way, and the passage of the wool between the two surfaces, or in
other words the travel of the surfaces over and under the wool, would serve to keep
the spaces between the portions a perfectly clean.
Having now particularly described and ascertained the nature of our said inven-
ion and in what manner the same is to be performed we declare that what we
claim is:-
In the rubbing leathers of condenser carding engines, the employment of suitably

page_text: disposed upstanding resilient studs or projections such as a fixed upon or formed
integrally with both travelling surfaces b substantially as described and shewo.
Dated this 13th day of February 1896.
GEO. THOS. HYDE,
1 Broad Street Buildings, Liverpool Street, E.C.,
Agent for the Applicants.