IMPROVEMENTS APPLICABLE TO MACHINERY OR APPARATUS FOR CARDING COTTON AND OTHER FIBROUS MATERIALS
Year: 1879

page_text: LETTERS PATENT to Roger Tatham, of Rochdale, in the County of Lancaster,
Mechanical Engineer, for the Invention of "IMPROVEMENTS APPLICABLE TO
MACHINERY OR APPARATUS FOR CARDING COTTON AND OTHER FIBROUS
MATERIALS."
PROVISIONAL SPECIFICATION left by the said Roger Tatham at the Office
of the Commissioners of Patents on the 28th May 1879.
ROGER TATHAM, of Rochdale, in the County of Lancaster, Mechanical Engineer.
"IMPROVEMENTS APPLICABLE TO MACHINERY OR APPARATUS FOR CARDING COTTON
AND OTHER FIBROUS MATERIALS,"
My Invention refers, firstly, to apparatus for cleaning the rollers and clearers of
carding engines, for which purpose I remove them from the engine and place them
in a frame in contact with a revolving roller armed with projecting wire teeth or
equivalent thereto, which by revolving in contact with the cards effects the desired
cleaning. The rollers or clearers are placed in bearings on a sliding part, which
may be moved to and fro by a screw or similar apparatus so as to adjust them
more or less in contact with the cleaning rollers, and I propose to mount the whole
apparatus on wheels so as to constitute a portable machine complete in itself, and I
also propose to cause the wire roller to act on two rollers or clearers, one on each
side thereof.
Secondly. My Invention refers to condensing carding engines and consists in a
method of dividing the cards on the doffer in order to form the required rings.
For this purpose I use wedge or knife shaped strips of metal, the flat edges of
which correspond to the width of the intended spaces. The thin ends of these
strips being thrust into the sheet card, the flat edges constitute equivalents for the
usual spaces.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Roger Tatham in. the Great Seal Patent Office on the 28th
November 1879.
ROGER TATHAM, of Rochdale, in the County of Lancaster, Mechanical Engineer.
"IMPROVEMENTS APPLICABLE TO MACHINERY OR APPARATUS FOR CARDING COTTON
AND OTHER FIBROUS MATERIALS."
My Invention refers chiefly to condensing carding engines, and consists in a
method of dividing the cards on the doffer in order to form the required rings. For
this purpose I use wedge or knife shaped strips of metal, the flat edges of which
correspond to the width of the intended spaces. The thin sides of these strips
being thrust into the sheet card, the flat edges constitute equivalents for the usual
spaces. Figure 1 represents in side view the construction of strip I simply; Fig. 2
is a plan view thereof; and Fig. 3, a cross section shewing the form of the strip
between the parts A, B; Fig. 4 represents a partial section of a condensing carding
engine, that is, the doffer and a portion of the cylinder; and Fig. 5 is a partial section
of those two parts taken in a horizontal direction; these two last mentioned Figs.
having my improvement applied thereto, and in the situations the parts assumed
when they are in working order. The doffer is shewn at a and the cylinder at b,
the former as is well known is usually covered with rings of wire cards leaving
spaces between them so as to remove the material from the cylinder in the form
of ribbons; but according to my Invention the doffer is covered with sheet card, and
the spaces are formed by the introduction of strips as at Figs. 1, 2, 3, and a manner
in which they may be adapted is shewn at Figs. 4 and 5; at c is a rod extending
across the machine and secured at each end to the frame work. Upon this rod are
placed brackets & capable of being fixed in any position by set screws, as at e. A
strip A, C, is placed against the doffer and the wedge shaped part A, B, or a
portion thereof is thrust into the wire card so that the outward surfaco of the said
strip is a little below the face of the wires. The other end of the strip is then
placed between flanges on the bracket & and held there by a set screw f, and this
adaptation of strips is effected along the width of the doffer, according to the spaces
required; Fig. 5 shows several strips so adapted, such strips by pushing the wires
apart forming the required spaces.
I have above specially alluded to condenser carding engines, but my Invention
may be adapted to others in which spaces are required in the cards, in all cases the
wires running against the fixed strips.
Having thus described and ascertained the nature of my said Invention and the
manner in which the same is to be performed, I desire it to be understood that I
claim as secured to me under the above in part recited Letters Patent, and for the
purpose above set forth, the use of the fixed strips situate in the wire of the sheet
card, substantially as described.
In witness whereof, I, the said Roger Tatham, have hereunto set my hand
and seal, this Twenty fifth day of November, One thousand eight hundred
and seventy nine.