Improvements relating to Carding Engines.
Year: 1891

page_text: Date of Application, 17th Apr., 1891
Complete Specification Left, 16th Jan., 1842-Accepted, 20th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements relating to Carding Engines.
I SAMUEL GREEN Bank House, Roaches, Mossley near Manchester Cotton
Mill Manager do hereby declare the nature of this invention to be as follows:-
:—
Improvements in the formation of licker-in roller knives of carding engines,
substituting for the usual knives which have flat working faces, knives which
have angular working faces, the angle in the working face of each knife to be regu-
lated by a geometrical construction which has for its object the extraction of
In the
broken seed, leaf ete. without making too much fly or waste of fibre.
drawing the circle L. represents that described by the points of the wire or
teeth of licker-in roller, which points convey the cotton from feed rollers to
cylinders, in the direction shewn by the arrows D. The line bc Fig. 1 represents
the working face of an ordinary licker-in knife, which answers well its purpose
of extracting seed and leaf from cotton in transit from feed rollers to cylinder,
when such working face is tangential to a circle R of about 1" radius, described
from centre F and when such working face is also at an angle T E of about 42°
with an horizontal line H E drawn through centre F.
с
When however with a view to increased cleaning power a number of flat faced
knives are applied; one only. Fig. 1 can be in a position answering both condi-
tions; the additional knives can answer but one of these two conditions; if the
former condition, then too much fly or waste is the result and if the latter,
then cleaning power would be wanting. The purpose of this invention is to
modify the working faces of the additional knives so as to comply with
both conditions, by making a portion of the working face B A of each knife
Figs. 2, 3, 4, 5, 6 to comply with the first condition that is tangential to circle R
and the remainder of the working face A. C. Figs. 2, 3, 4, 5, 6 to comply with
the second condition and so be parallel with working face of first knife Figl
the portion of working face BA is to extract the broken seed, lent ete, and the
portion AC is to support and prevent the falling of too much fibre.
D
J
1401
SAMUEL GREEN.
COMPLETE SPECIFICATION.
Improvements relating to Carding Engines.
I SAMUEL GREEN Bank House, Roaches Mossley near Manchester Cotton
Mill Manager 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 :—
Improvements in the formation of licker-in roller knives of carding engines,
substituting for the usual knives which have flat working faces, knives which
have angular working faces; the angle in the working face of each knife to be
regulated by a geometrical construction which has for its object the extraction
of broken seed, leaf etc., without making too much fly or waste of fibre. In
the drawing, filed with the Provisional Specification, the circle L represents
that described by the points of the wire or teeth of licker-in roller, which points
convey the cotton from feed rollers to cylinders in the direction shewn by the
arrows D. The line be Fig. 1 represents the working face of an ordinary
licker-in knife which answers well its purpose of extracting seed and leaf from
cotton in transit from feed rollers to cylinders, when such working face is
07

page_text: tangential to a circle R of about 1" radius described from centre and when
such working face is also at an angle TE of about 42° with a horizontal
line E drawn through centre F.
When however with a view to increased cleaning power, a number of flat
faced knives are applied one only, Fig. 1 can be in a position answering both
con litions; the additional knives can answer but one of these two conditions;
if the former condition, then too much fly or wa-te is the result, and if the latter,
then cleaning power would be wanting. The purpose of this invention is to modify
the working faces of the additional knives so as to comply with both conditions by
making a portion of the working face BA of each knife. Figs. 2, 3, 4, 5, 6, 10
comply with the first condition, that is tangential to circle R and the remainder of
the working face A (Figs. 2, 3, 4, 5, 6 to comply with the second condition and
so be parallel with working face of first knife Fig. 1.
The portion of working face B A is to extract the broken seed, leaf, etc, and the
portion AC is to support and prevent the falling of too much fibre.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what
I claim is―
The angular formation of working faces of licker-in knives in carding engines
constructed upon the principle herein specified; the result being, that the working
edge of each knife has the same relative position to the licker-in roller, and there-
fore equally adapted for arresting and extracting substances other than fibre from
the cotton as it is brought in contact with the knives by the licker-in roller; this
uniformity of cleaning power in each knife being secured without the disadvantage
of making too much fly, which would exist if the working faces of the knives
were flat.
Dated this 14th day of January 1809)
SAMUEL GREEN.