Improvements in Scutching Machines and Derby Lap Machines, and such other Machines as are used in the Treatment of Cotton and other Fibrous Substances for the Formation of a Lap.
Year: 1891

page_text: Date of Application, 17th Nov., 1891
Complete Specification Left. 19th Mar., 1892-Accepted, 30th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Scutching Machines and Derby Lap Machines, and
such other Machines as are used in the Treatment of Cotton and
other Fibrous Substances for the Formation of a Lap.
We CHARLES FREDERIC AINSWORTH of Lower Brazley Horwich in the
County of Lancaster Cotton Spinner and JOHN HAYDOCK of No. 315 Manchester
Road Bolton in the same County Mill Manager do hereby declare the nature of
this invention to be as follows:-
This invention relates to scutching machines and Derby lap machines and such
other machines as are used in the treatment of cotton and other fibrous substances
for the formation of a lap and has for particular objects the prevention of what is
known as "ballooning in the lap and also a means whereby the said lap is made
more firm and the layers thereof more easily and effectually separated when being
worked in succeeding machines.
"
"
In carrying out our invention our apparatus is an addition to and not an alteration
of any existing parts of a scutching machine Derby lap machine or other machine
to which it is applied. It is well known that a lap in a scutching or Derby lap
machine "balloons or increases in size on the outside fold of the lap on that side
nearest the callendar rollers by the act of the fold becoming loose in formation and
larger in circumference. When this takes place the lap is rendered soft and uneven
and occasionally the ballooning becomes of such an aggravated form that it doubles
over and causes an enlarged block of cotton at that spot. Again as is well known
the outer and inner surfaces of the sliver in an ordinary lap machine when winding
In such case when
on the lap are somewhat rough and the cotton fibres "stare."
the lap comes to be unwound in the carding machines or combing machines the
folds of the lap adhere together, sometimes break in unwinding and produce con-
To obviate these defects we
siderable waste, irregularity of work and counts.
provide two curved plates with smooth surfaces so placed that one smooth curved
plate shall exert a moderate pressure which is caused by its own or assisted weight
upon the outer surface of the lap on the side nearest the callendar rollers during
the course of its formation. This prevents the ballooning or enlarged circumference
of the lap and at the same time lays and arranges the surface of the lap so that the
"staring" fibres do not so readily adhere to the fibres of the adjacent surface and
thus prevents derangement or licking. The second smooth curved plate exerts a
moderate pressure which is caused by its own weight or by the intervention of or
assisted by springs or extra weight upon the inner surface of the lap as it comes to
be wound upon the lap and is fixed at a point between the lap and the consolidating
rollers as near to the lap itself as will admit of a full sized lap being made. The
second curved plate similarly acts upon the upper surface of the cotton or other
material between the callendar rollers and has the effect of laying pressing down
and arranging the surface of the incoming cotton or other material so that the
"staring "fibres do not so readily adhere to the fibres of the next adjacent
surface.
11: 19h day of November 1801
ROBERT WINDER,
Agent for Charles Frederic Ainsworth and John Haydock.

page_text: COMPLETE SPECIFICATION.
Improvements in Scutching Machines and Derby Lap Machines, and
such other Machines as are used in the Treatment of Cotton and
other Fibrous Substances for the Formation of a Lap.
We CHARLES FREDERIC AINSWORTH of Lower Brazley Horwich in the
County of Lancaster Cotton Spinner and JOHN HAYDOCK of 315 Manchester
Road Boltou in the same County Mill Manager, 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:-
"
This invention relates to scutching machines and Derby lap machines and such
other machines as are used in the treatment of cotton and other fibrous substances
for the formation of a lap and has for particular objects the prevention of what is
known as ballooning in the lap and also a means whereby the said lap is made
more firm and the layers thereof more easily and effectually separated when being
worked in succeeding machines. In carrying out our invention our apparatus is an
addition to and not an alteration of any existing parts of a scutching machine,
Derby lap machine or other machine to which it is applied. It is well known that
at times a lap in a scutching or Derby lap machine "balloons or increases in size
on the outside fold of the lap on that side nearest the consolidating calendar rollers
at the point where the ballooning first commences to be formed and extending
some 8 or 9 inches upwards therefrom by the act of the fold becoming loose in
formation and larger in circumference when this takes place the lap is rendered soft
and uneven and occasionally the ballooning becomes of such an aggravated form
that it doubles over and causes an enlarged block of cotton at that spot. Again as
is well known the outer and inner surfaces of the sliver in an ordinary lap machine
when winding on the lap are somewhat rough and the cotton fibres "stare." In
such case when the lap comes to be unwound in the carding machines or combing
machines the folds of the lap adhere together sometimes break in unwinding and
produce considerable waste irregularity of work and counts. To obviate these
defects we provide a curved plate with smooth surface so placed as to exert a
moderate pressure which is caused by its own or assisted weight upon the outer
surface of the lap during its formation and on the side nearest the consolidating
calendar rollers the contact of the curved plate with the lap commencing at a point
on the surface of the lap close to and above where the sliver of cotton first joins
the lap after leaving the consolidating rollers the contact of the curved plate then
extending upwards on the surface of the lap 8 to 12 inches as the lap increases in
diameter during the course of its formation. This prevents the ballooning or
enlarged circumference of the lap and at the same time lays and arranges the
surface of the lap so that the "staring" fibres do not so readily adhere to the fibres
of the adjacent surface and thus prevents derangement or licking, and in order that
our said invention may be more fully understood we will now proceed to describe
the same with reference to the accompanying sheet of drawings in which
Fig. 1. is a front elevation showing the improved apparatus in position.
Fig. 2. is a transverse section view showing the apparatus touching the lap at
its commencement of formation. a. and b. are fluted rollers driving the lap roller g.
c. d. e. and are consolidating calender rollers g. is the lap roller on which the lap
is formed. This latter rises in position according as the lap becomes larger h. is
the lap when fully formed this is shewn dotted is the curved plate which presses
on the lap j.j. are arms which support the curved plate, k. is the supporting rod on
which the curved plate i. and arms j. j rest and move 1. is an adjustable weight for
adding pressure by the curved plate i. on the lap h.
The sliver of cotton m. coming from the machine passes between the rollers e.
and then between c. and d. and forward over the fluted driving roller b. and
round the lap roller g. by reason of the sliver of cotton being wound thereon