AN IMPROVED MACHINE FOR CLEANING COTTON
Year: 1884

page_text: PROVISIONAL SPECIFICATION,
1, ALEXANDER MELVILLE CLARK, of the firm of A: M. and Win. Clark, of
53, Chancery Lane, in 'the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of the said Invention for AN IMPROVED
MACHINE FOR CLEANING COTTON a communication to me from abroad by Georges
Alphonse Risler of Cernay Haute Alsace, Spinner to be as follows:-
This Invention relates to improvements in the construction of machines for
preparing cotton for spinning known as "Express cards."
Reference is to be had to the accompanying drawings forming part of this
Specification wherein I have illustrated an example of the machine with the
improvements applied. As will be seen from the drawing, I employ in com-
bination with the two cylinders A B, a third cylinder or drum C.
In the express card as now constructed, it is found that the upper surface of the
Aleece M passing out of the machine is more perfectly cleaned than the under
surface which still contains leaf, straw and filaments of unopened cotton. This
imperfection is due to the fact that the teeth of cylinder A being incapable of
reaching the filaments forming the underportion of the fleece of cotton supplied
from the feed bead E, presses them against the cylinder B which in its turn by the
aid of the suction produced by the fan N projects them between the metal drums D.
The cotton consequently passes out of the machine imperfectly opened and cleaned.
The object of the present Invention is to obvinte this objection by the employment
of an additional cylinder C, which is caused to act upon the filaments as they leave
the cylinder B, by which means the opening and cleaning of the whole of the
filaments is ensured and for this reason I have given this improved machine the
name of "double action express card."
In view of the employment of the additional cylinder C, the area of the grid g¹g¹
is correspondingly enlarged at g' to allow of a larger quantity of motes, leaf, straw
&c passing through.
The air, also, in this improved machine is admitted at the front, as indicated by
the arrows i and throughout the entire breadth of the machine whereby a fleece.
uniform throughout its whole breadth is produced, whereas in the ordinary "express
card," owing to the air inlet being in the rear and the fan being placed in the
centre, the air was unequally distributed,

page_text: COMPLETE. OF ECIFICATION,
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of the said Invention for "AN IMPROVED
MACHINE FOR CLEANING COTTON" (a communication to me from abroad by Georges
Alphonse Risler of Cernay, Haute Alsace, Spinner) and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:—
This Invention relates to improvements in the construction of machines for
preparing cotton for spinning for which former Letters Patent were granted.
to me dated 1875 no. 3229 and designated the "Express-card."
Reference is to be had to the accompanying drawings forming part of this
specification wherein I have illustrated an example of the machine with the
improvements applied. As will be seen from the drawing, I employ in com-
bination with the two cylindors A B, as described in the said former patent a
third cylinder or drum Ɑ.
In the "express-card" as now constructed, it is found that the upper surface of
the lap M passing out of the machine is more perfectly cleaned than the under
surface which still contains leaf,, straw and filaments of unopened cotton. This
imperfection is due to the fact that the teeth of cylinder A. being incapable of
reaching the filaments forming the underportion of the lap of cotton supplied from
the feed head E, presses them against the cylinder B which in its turn by the aid
of the suction produced by the fan N projects them between the metal drums D.
The cotton consequently passes out of the machine imperfectly opened and cleaned.'
The object of the present invention is to obviate this objection by the employ-
ment of an additional cylinder C upon which the filaments are again passed after
they leave the cylinder B, whereby a thorough opening and cleaning of the whole
of the filaments is ensured, and for this reason I have given this improved machine
the name of "double action express-card."
In view of the employment of the additiona leylinder C the area of the grid g, g¹
is correspondingly enlarged at g" to allow of a larger quantity of motes, leaf, straw
&c passing through.
The air, also, in this improved machine is admitted at the front, as indicated by
the arrows i and throughout the entire breadth of the machine, whereby a lap of
uniform thickness throughout its whole breadth is produced, whereas in the
ordinary "express-card," owing to the air inlet being in the rear and the fan being
placed in the centre, the air was unequally distributed.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
•
1st In a machine for preparing or cleaning cotton designated an "express-card,"
the combination with the two cylinders A B between which the lap of cotton passes,
of a third cylinder C as described for the purpose specified.

page_text: 2nd The modified construction of grid consequent on such combination, as
described.
3rd In a machine for preparing or cleaning cotton designated an "express-card,"
the arrangement for admitting the air in front of and across the entire breadth of
the machine, as shown and described.