IMPROVEMENTS IN RUBBING MECHANISM FOR CARDING MACHINES
Year: 1882

page_text: LETTERS PATENT to Charles Aubrey Day, of 321, High Holborn, in the
County of Middlesex, Patent Agent, for an Invention of IMPROVEMENTS
IN RUBBING MECHANISM FOR CARDING MACHINES Communicated to him
from abroad by James Barker, of Philadelphia, Pennsylvania, in the United
States of America
PROVISIONAL SPECIFICATION left by the said Charles Aubrey Day at the
Office of the Commissioners of Patents on the 22nd July 1882.
"
13
CHARLES AUBREY DAY, of 321, High Holborn, in the County of Middlesex,
Patent Agent, IMPROVEMENTS IN RUBBING MECHANISM FOR CARDING MACHINES
(A communication to me from abroad by James Barker, of Philadelphia, Penn-
sylvania, in the United States of America)
The object of this Invention is to construct rubbing mechanism for carding
machines, so as to secure the advantages of both apron and roll rubbers, without
the disadvantages of either.
The rubbing mechanism now generally used in carding machines comprises
upper and lower sets of rolls, between which the strands are caused to pass, the
rolls having both a rotating and a slight reciprocating motion so as to roll the
strands into slivers.
The main objection to such rub rolls is the limited rubbing surface which they
present, and this has led to the adoption for some classes of work, of a pair of
endless aprons instead of the two sets of rolls.
The endless apron rubbers, however, while presenting a more extended rubbing
surface than the rolls, are objectionable because they do not permit a draft upon
the strands during the rubbing operation, and further because they have a
tendency to cause the adjoining slivers to rub together in their passage between
the aprons.
In carrying out the present Invention, two pairs of aprons are used, with an
intervening space, the strands passing first between one pair of aprons, then across
the space, and then between the other pair of aprons.

page_text: By this means is secured the extended rubbing surface which is the main
advantage of an apron rubber, and the strands are enabled to be drawn or stretched
in the said intervening space, by driving the second pair of aprons somewhat faster
than the first pair,
As the rollers of each apron are arranged comparatively close together, the
strands are not subjected to a continuous rubbing action for such a time as to cause
them to rub together, thus overcoming the objection above mentioned, to which an
ordinary apron rubber is subject.
The mechanism for supporting and operating the aprons is immaterial, and may
be similar to that usually employed.
I prefer to introduce between each pair of rolls carrying the lower aprons, a roll
which serves to support the apron midway of its length. In lieu of but two pairs
of aprons, three or more pairs may be used if desired.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Charles Aubrey Day in the Great Seal Patent Office on the
30th December 1882...
17
CHARLES AUBREY DAY, of 321, High Holborn, in the County of Middlesex,
Patent Agent. "IMPROVEMENTS IN RUBBING MECHANISM FOR CARDING MACHINES
(A communication to me from abroad by James Barker of Philadelphia, Penn-
sylvania, in the United States of America)
The object of this Invention is to construct rubbing mechanism for carding
machines, so as to secure the advantages of both apron and roll rubbers, without
the disadvantages of either.
The Invention is illustrated on the accompanying drawings, in which Fig. 1, is
a diagram illustrating the improved rubbing mechanism in section; Fig. 2, is a plan
view of the same; and Fig. 3 is a plan view showing suitable supporting and
actuating mechanism.
The rubbing mechanism now generally used in carding machines, comprises
upper and lower sets of rolls, between which the strands are caused to pass, the
rolls having both a rotating and a slight reciprocating motion so as to roll the
strands into slivers.
The main objection to such rub rolls is the limited rubbing surface which they
present, and this has led to the adoption for some classes of work, of a pair of
endless aprons instead of the two sets of rolls.
The endless apron rubbers, however, while presenting a more extended rubbing
surface than the rolls, are objectionable because they do not permit a draft upon
the strands during the rubbing operation, and further because they have a
tendency to cause the adjoining slivers to rub together in their passage between
the aprons.
In carrying out the present invention there are used two pairs of aprons B B¹,
and D D' with an intervening space x, the strands passing first between one pair
of aprons B B¹, then across the space x, and then between the other pair of aprons
D D¹, as shown in Figs 1 and 2.
By this means is secured the extended rubbing surface which is the main
advantage of an apron rubber, and the strands are enabled to be drawn or
stretched in the space x by driving the aprons D D' somewhat faster than the
aprons B B
As the rollers of each apron are arranged comparatively close together the
strands are not subjected to a continuous rubbing action for such a time as to cause
them to rub together, thus overcoming the objection above mentioned, to which an
ordinary apron rubber is subject.
The mechanism for supporting and operating the aprons is immaterial, and may
be similar to that usually employed.
I prefer to introduce between each pair of rolls carrying the lower aprons B¹ D'
a roll y, which serves to support the apron midway of its length. In lieu of
but two pairs of aprons three or more of such pairs may be used if desired.
Having now described the nature and object of the said invention together
with the manner in which the same is to be or may be performed or carried into
practical effect I would remark in conclusion that I am aware that an apron
rubber and rub rolls have been heretofore combined in one machine, and hence
I do not claim such a combination, but what I claim as the Invention

page_text: communicated to me by the said James Barker, and as secured by the hereinbefore
in part recited Letters Patent, is :-
The hereinbefore described rubbing mechanism for carding machines, the same
comprising two pairs of endless aprons B B' and D D¹, one pair being in advance
of the other, as set forth and illustrated on the accompanying drawings.
In Witness whereof, I the said Charles Aubrey Day have hereunto set my
hand and Seal, this thirtieth day of December in the year of our Lord, one
thousand, eight hundred, and eighty two.
CHARLES. AUBREY, DAY. (L.S.)