Improvements in and connected with Carding Engines.
Year: 1891

page_text: Date of Application, 15th Apr., 1891
Complete Specification Left. 31st Oct., 1391-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in and connected with Carding Engines.
We JAMES SCHOFIELD and ROBERT ASHWORTH both of the firm of James
Schofield and Company of Victoria Works River Street Rochdale in the County
of Lancaster Machinists do hereby declare the nature of this invention to be as
follows:-
Our improvements relate to carding engines for carding fibrous materials but
more particularly to such machines as are used for carding hard waste cotton
materials and known as breaker carding engines.
The purpose and object of our improvements being to obviate the breakage
or severance of the web or fleece when passing from the doffer to the draft or
draw rollers. It is well known that according to the construction of machines at
present in use that the web is often broken or severed on the stationary inclined
plate intercepting the doffer and the draft or draw rollers which may be due
and is chiefly due to the fact that particles of grit greasy matter or substances
are deposited on the surface of the plate the web being of a fragile or delicate
character slight interruptions or obstructions to its traverse across the plate such
as may be caused by minute particles of grit or other matter causes the web to
break or sever consequently upon the occurrence of such breakage the material is
then delivered to waste and if such breakage be of frequent occurrence as the case
may be consequently the manufacturer suffers much loss.
We purpose to obviate the defects above stated by the following means.
According to our construction and arrangement we employ an endless lattice
band or carrier mounted on two or more rollers in a convenient manner to one of
the rollers is imparted a motion by means of suitable gear wheels the carrier is
situate conveniently near to the dofling cylinder or doffer and lengthwise thereof in
such a manner that the web or fleece of material as it is stripped from the doffing
cylinder by the stripper may be deposited or delivered over a strip or narrow band
of metal on to the carrier by which carrier the material is transmitted in direction
from the doffer to or towards a set of draft or draw rollers of ordinary construction
which rollers we place in the most convenient position with relation to the carrier
in order to allow of the material to pass therefrom to the said rollers after passing
through the draft rollers the material is then delivered in the form of a sliver to
the coiler in the ordinary manner.
The lattice as used and applied for the purposes of and in connection with our
invention is of such a length as to allow of a space or opening at the delivering
end thereof or between the end of the lattice and the draft rollers such opening
being a result or consequence of the rollers being situate at a distance from or in a
certain position with relation to the lattice but according to our present practice
we find the most convenient position to be that which allows the material to pass off
at the delivery end of the lattice to the rollers in such a manner that the same may
he drawn in direction from the doffer towards the face or front of the lattice in
order to avoid the possibility of contact at such part with the stripper and thus to
obviate what is known as "flocking."
The band or strip of metal before referred to we provide in order to obstruct a
current of air or draught occurring and issuing through a space formed between
the doffer and the edge or side of the lattice during the revolutions of the former
and thus by such obstruction or prevention to enable the material to pass
uninterruptedly on to the lattice.
The motion of the band or carrier may be effected in any convenient manner by
theans of suitable gear wheels but according to our arrangement we preferably

page_text: transmit the said motion and the motion to the draft rollers by means of one and
the same shaft actuated by suitable gearing from the doffing cylinder shaft. The
motion of the carrier is capable of regulation or adjustment more or less accordingly
as it may be required to pass the material to the "draft rollers at a greater or less
speed we preferably adjust the surface speed of the carrier equal to the surface
speed of the back rollers that is the rollers situate nearest the carrier-the draft
or stretch of the material being effected by the front rollers that is the rollers
situate furthest from the carrier-in the usual manner but if necessary or desirable
the speed of the carrier may be regulated or adjusted more or less with relation to
the speed of the back rollers.
It will be manifest according to the method or system herein specified riz. The
material after leaving the doffer being carried to or towards the draft rollers, the
said material not being subject solely to the influence or nip of the said rollers and
the said material not having to traverse across a broad stationary plate or across
a plate of large area and subject to strain or pull but being assisted or aided in its
passage to the draft rollers and relieved from strain or tension that breakage or
severance thereof may be avoided more particularly so in the case of material
having very short or loose fibre or staple and when the material is delivered or
deposited in an even state or condition on the carrier the same may be passed in
such even state or condition to the rollers consequently resulting in the production
of a sliver of an even or uniform thickness throughout its entire length.
1001
JAMES SCHOFIELD.
ROBERT ASHWORTH.
J. H. Butterworth,
Representing the Applicants herein.
JAMES SCHOFIELD.
ROBERT ASHWORTH.
J. H. Butterworth,
Representing the Applicants herein.
COMPLETE SPECIFICATION.
Improvements in and connected with Carding Engines.
We JAMES SCHOFIELD & ROBERT ASHWORTH both of the firm of James
Schofield & Company of Victoria Works River Street Rochdale in the County of
Lancaster Machinists, 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 :-
Our invention relates to carding engines for carding fibrous materials but
particularly to such engines used for carding hard waste cotton materials and known
as breaker carding engines.
The object of our improvements being to dispense with the stationary plate
intercepting the doffing cylinder and the draft rollers as now used, and thus to
obviate the breakage or severance of the web or fleece thereon when passing from
the doffer to the draft rollers.
It is well known that according to the construction of machines at present used the
web is often broken or severed during its passage over the stationary inclined plate
which is chiefly due to foreign or other deposits adhering to the surface of the plate,
such as particles of grit, which are caused to adhere thereto, which plate is more
or less in a greasy state, consequently in the event of such occurrences the material
is caused to be delivered to waste this entailing loss on the manufacturer.
We purpose to obviate such occurrences as above stated by means hereinafter
stated. In order that a clear comprehension of the details of our invention may
be obtained we have hereunto annexed a sheet of drawings illustrating our
invention and its application, in which drawings like letters of reference indicate
similar parts.
Fig. 1. represents an end elevation of our invention.
Fig. 2. represents a plan.

page_text: According to our construction and arrangement we employ an endless lattice
band or carrier a, mounted on two rollers b, b, to the roller b, is imparted a motion
through the agency of the gear wheels c, c, effected by the motion shaft & which
may extend towards the end of the doffing cylinder, and be operated by means
of convenient gearing on the shaft of the doffing cylinder and on the said shaft d.
The roller is conveniently mounted on a stand having a slide surface, and
provided with a screw threaded rod h, which arrangement admits-when the screw
rod is turned or operated, -the roller to be capable of being adjusted more or
less to, or from, the roller consequently the lattice a may be more or less
stretched or tightened, as the roller & is mounted in a fixed bearing or stationary
bracket i.
At a convenient part, near one end of the lattice, we affix to the frame j, the
ordinary draft rollers k, such are fixed in a convenient position so as to withdraw
the material as shown in Fig. 2, from the face of the doffing cylinder in order to
avoid what is known as flocking, the draft rollers are operated by means of
convenient gearing on the shafts d and 1, respectively, one or more of which
rollers, may be suitably provided with gear wheels so as to ensure rotation of the
rollers in the event of obstruction such as lumpy parts in the carded material.
The operation of cur invention is as follows:-
The material is delivered from the doffer f, by the stripper on to the lattice a,
over the strip of metal m, see Fig. 1, which strip of metal is provided at the part
as indicated, in order to avoid the effect of a current of air set up or caused between
the surface of the doffing cylinder and the edge a' of the lattice, which may be due
to the revolutions of the former, also to avoid accumulation of the material between
the doffer and the lattice.
The material is then passed in direction towards the draft rollers, between the
delivery extremity of the lattice and the draft rollers, there being a space or
opening in consequence of the said rollers being situate conveniently at a distance
from and us shewn with relation to the lattice, so as to allow of the material
to pass away from the doffer and the stripper, and off the lattice, in a convenient
manner, avoids what is known as flocking, which space is an important element
in the carrying out of our invention.-between the stripper and the surface of
the lattice situate near the delivery end thereof, consequently, the material being
fed to the draft rollers and not caused to be drawn over the stationary plate by the
influence of the rollers, the material may be allowed to pass to the rollers
uninterruptedly, between which rollers and the doffer, the severance of the web or
fleece occurs, when the stationary plate is employed.
We claim no exclusive privilege to the use of the draft rollers or the travelling
lattice in their individual characters, but what we do consider novel, and do claim
the exclusive privilege of using, is, such draft rollers and the lattice in combination
and applied in the manner as shewn when employed for the purpose of carrying our
invention into effect.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :
(1.) The travelling lattice a, the draft rollers k, and the strip of metal m,
whereby the carded material from the carding engine is passed from off the delivery
end of the travelling lattice to the draft rollers, which rollers are situate with
relation to the lattice, as to draw the material from the face of the doffing cylinder
as indicated in the drawings hereunto annexed, substantially as and for the purposes
herein specified and set forth.
(2.) The strip or bar of metal in as and for the purposes herein set forth.
J. H. BUTTERWORTH,
For the Applicants.