An Improved Top Clearer for the Rollers of Preparing and Spinning Frames.
Year: 1893

page_text: Date of Application, 20th Oct., 1893
Complete Specification Left, 27th June, 1894-Accepted, 28th July, 1894
PROVISIONAL SPECIFICATION.
An Improved Top Clearer for the Rollers of Preparing and
Spinning Frames.
We, BENJAMIN ALFRED DOBSON, Engineer, of Bolton, in the County of
Lancaster, and THOMAS VARLEY, Mill Manager, of Slaithwaite, in the County
of York, do hereby declare the nature of this invention to be as follows:-
In our improved top clearer for the rollers of preparing and spinning frames
we employ an ordinary travelling flannel cloth passing round a roller of wood or
other material working on the centre or thereabouts of the back roller and then
round either a stationary guide or roller placed over the front roller; this guide
and the roller are supported at each end by a fraining the first named roller being
pivoted therein, and the front guide being fastened in a slot which allows for an
adjustment for tightening the travelling cloth or for following the adjustment of the
bottom rollers. The travelling cloth which is about the width or rather wider
than the boss of the top roller is prevented from moving longitudinally by
guides.
The framings are connected at the back from one end to the other by a rod
which maintains them in position aided by the front guide which when tightened up
in the slots acts as a stay; in case a revolving roller be used in the front an extra
stay will be requisite. The portion of the framing underneath the back top
roller is shaped out like a fork, which fork is the right size for fitting loosely on the
end spaces of the back top roller. That portion of the framing behind the back
roller is so shaped that when the clearer is lifted up at the front the back part pivoting
on the back top roller comes against the roller slide and maintains the clearer in a
partially upright position by the excess of weight of the back portion of the
apparatus. The back portion of the clearer end frames may be prolonged to take
sliding balance weights which may be used to regulate the pressure on the front
roller. For the purpose of ensuring sufficient friction we may pivot a presser roller
or presser bar by cranked arms to the end framings placed inside the travelling
cloth near the stationary guide or roller thus allowing vertical pressure and freedom
of movement. The piecing of the travelling cloth may be diagonal as usual or
seamless cloth may be used.
Dated this 19th day of October 1893
H. B. BARLOW & GILLETT,
Agents for Applicants.
COMPLETE SPECIFICATION.
An Improved Top Clearer for the Rollers of Preparing and
Spinning Frames.
We, BENJAMIN ALFRED DOBSON, Engineer, of Bolton, in the County of
Lancaster, and THOMAS VARLEY, Mill Manager, of Slaithwaite, in the County
of York, 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 :-
The object of our invention is to provide improved means for clearing and

page_text: removing fluff from the top rollers of the nest of drawing rollers employed in
machines for preparing and spinning fibrous materials.
We attain this object by the use and application of an endless band of flannel or
other suitable material stretched over rollers or guides supported in a frame fitted
to swivel or turn on the top back drawing roller.
And in order that our invention may be fully understood and readily carried into
effect we will describe the accompanying three sheets of drawings reference being
had to the figures and letters marked thereon.
Figure 1 is an end view of a set of drawing rollers with our improved top clearer
shown in section.
Figure 2 is a plan of the same.
Figure 3 is a back view of the same.
The upper series of drawing rollers are designated respectively a, b, c, d, and the
lower a, b, c, d, these rollers being arranged and operating in the usual manner,
well understood by those conversant with preparing and spinning machines.
Our improved top clearer consists of the following combination and arrangement
of parts: A roller e placed immediately over the back drawing roller a is journalled
in a frame composed of two sides ff, secured together by a fixed back stay 9 and a
fixed but adjustable front stay h the latter being secured immediately above the
front drawing roller d by nipping screws i in slots f¹ in the side frames ff so that
it can be set nearer to or farther from the back stay 9 as required. An endless
band of flannel or other suitable material passes over the roller e and front stay h
which acts as a support for said band and carries two bowls which guide the band
on either side. The piecing of the travelling cloth may be diagonal as usual or
seamless cloth may be used. To insure sufficient frictional contact between the
endless band k and the series of upper drawing rollers we employ a swivel presser
bar m pivoted by radial arms n with cranked ends to the side frames ff.
a,
The side frames ff underneath at the back are shaped out like forks as shown in
Fig. 1, to fit loosely over the reduced ends of the back top roller and to allow
the top clearer frame with the roller e and band k to be raised up at the front end,
the back drawing roller a acting as the support and centre of movement.
The side frames ff may or may not be prolonged as indicated by dotted lines in
Figs. 1 and 2 of the drawings to carry sliding balance weights o, which can be
adjusted and then fixed in position by the screws p, to regulate the pressure of the
apparatus upon the front top drawing roller d.
In operation the endless band k is caused to travel round the roller e and guide h
by frictional contact with the series of top drawing rollers a, b, c, d, from which it
carries away accumulations of fluff and fly.
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. A top clearer consisting in its essential features of an endless band caused to
travel by frictional contact with the top drawing rollers, guides for the same and a
frame carrying the band and guides, said frame having a bearing to engage one of
the top drawing rollers to support the frame pivotally thereon, substantially as
described.
2. In combination with the drawing rollers, the roller e adapted to bear on one of
the same to be turned by frictional contact, the guide h, the endless travelling band
and the frame carrying the said roller and guide with the endless band said frame
having forked bearings extending downwardly below the roller e to engage the
top drawing roller and pivotally connect the frame therewith, substantially as
described.
3. In combination with the drawing rollers, the roller e in contact with one of the
same, the frame pivoted at one end, the endless travelling band with the guide
'therefor carried by the frame, the presser bar m within the circuit of the endless

page_text: band and the arms n connecting the same with the frame ff pivotally, substantially
as described.
Dated this 26th day of June 1894.
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicants.