Fibrous Materials, Applicable to Carding Engines.
Year: 1887

page_text: Date of Application, 1st July, 1887
Specification Accepted, 25th Oct., 1887
Fibrous Materials, Applicable to Carding Engines.
We JAMES EDWARD RENSHAW (of the firm of Samuel Renshaw and Co.) Cotton
Spinner Bury and JAMES SCHOFIELD (of the firm of James Schofield and Co.)
Machinist Rochdale both in the County of Lancaster do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
3 described and ascertained in and by the following statement:-
:
Our invention relates to the metal or steel tapes used between the cylinder and the
doffer of a carding engine for carding cotton, wool silk or other fibrous materials.
It is well known in practice that fluff, seed, or other extraneous matter generally to
be found associated with the material being worked, does gather or collect on the tapes
and forming at such parts superfluous or objectionable masses of material, and are
carried by the doffer, such objectionable portions passing to the slivers, such slivers
thus being of an uneven nature.
The objects of our invention are to obviate the collection or accumulation of super-
fluous or other matter on the tapes, and to dispense with the employment of rings or spaces
on the doffer, as is now the case with the present mode of dividing on the engine by
tapes. For the purpose of accomplishing such objects, we cause a motion to be
imparted to the dividing tapes, so as to avoid the adherence of fluff &c. thereto; the
fluff or loose matter being allowed to fall away from the tapes. Our arrangement
allows the material to be cleanly cut or divided, obviating unevenness of slivers usually
arising from the fact of accumulated portions becoming at intervals associated there
with, and obviates the necessity of employing rings or spaces on the doffer...

page_text: In order that our invention may be better understood we have reference to the
accompanying sheet of drawings to which like letters of reference indicate like parts
throughout the same.
Fig. 1, is an end view of a portion of the cylinder and doffer of a carding engine
shewing our apparatus applied in connection with the doffer.
Fig. 2, is a front view of Fig. 1, shewing a number of the tapes and represented by
dotted lines being sufficient for the purposes of illustrating our invention.
At the upper part of the doffer a being supported by brackets b and c attached to
any convenient part of the framing d of the engine, we provide a roller e free to turn
on its bearings which we term "tape roller," the said roller having a slot or groove f
in the direction of its length, in the groove sliding pieces are inserted sliding pieces
baving screwed studs, to the sliding pieces g are attached the ends of steel or other
tapes h and secured thereto by means of screw threaded nuts i, the tapers and sliding
pieces being adapted with relation the groove f so as to allow the said pieces with the
tapes to be slid to or from either end of the roller e, such arrangement allows the
tapes h to be adjusted to any required distance from each other admitting of a more or
less number of spaces accordingly as it may be desired and as it may be required to
form a greater or less number of slivers on the doffer a; the tapes h then pass over
the surface of the doffer a. thence down between the cylinder j and the doffer a their
extremities terminating with lead or other weights k, such being provided in order to
maintain the tapes in a perpendicular position and to ensure the necessary rigidity
thereof during the process of dividing.
At one extremity of the shaft e¹ of the roller e is provided a lever 1, the said lever
being connected by means of a lever m to a sliding stud n which may be adjusted to
any convenient position in the slot or groove p on the face of the disc r, the said disc
being carried by the shaft s. which shaft is supported by a convenient bracket t. On
the shaft s is provided a toothed wheel u. which gears with a corresponding toothed
wheel u on the shaft s', which shaft is supported by brackets v, ¹; on the shaft s' is a
toothed wheel w which gears with a worm wheel won the doffing cylinder shaft *.
Modus operandi our invention is as follows:-
When the doffing cylinder shaft is caused to rotate a rotary motion is imparted by
the agency of the wheels above described to the diser, an oscillating motion being
imparted by the agency of the link m. to the lever 1, and the roller e being caused to
partly rotate more or less accordingly as the stud n. is situated at a greater or less
distance from the axis of the disco: of the shafts, and accordingly as the lever m.
is connected to the lever l. at a greater or less distance from the axis of the tape
roller e, upon the occurrence of such motion of the roller the tapes h, will have an
upward and downward motion between the cylinder j and the doffer a; by this means
any fluff &c. will be prevented from collecting or accumulating on or about the tapes
as such fluff &c. passes from the fleece the same will fall underneath the engine,
motion being imparted to the tapes h such motion will evidently obviate the adherence
of fluff thereto.
The material being freed from the obstructions of fluff when passing between the
tapes, allows of an effective division of the fleece into slivers and obviates the necessity
of employing rings or spaces on the doffer as is now the case where tapes are employed
in the engine.
We would have it understood that we do not confine ourselves to the exact details
as shewn in the drawings, as it may be necessary to depart therefrom without deviating
from the principle of our said invention, for instance we may employ other means for
imparting motion to the tape roller than the means shewn in the drawings hereunto.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same is to be performed I declare that what I claim is :-
1. In an apparatus for dividing cotton, wool, silk, or other fibrous materials in a
carding engine and for preventing the accumulation or collection of fluff, seed, or
other loose matter during the operation of dividing such material, the use and

page_text: application of steel or other tapes such tapes having a motion for the purposes herein
fully set forth and described in the annexed drawings.
2. The combination of the tape roller e tape or tapes h sliding piece g. and brackets b
and e screw threaded nut i and weight k substantially as and for the purposes herein
fully set forth and described in the annexed drawings.
3. The combination of the levers and m sliding stud n slotted disc r the wheels 1. u
and the shafts s. sas and for the purposes herein fully set forth and described
in the annexed drawings.