Improvements in Slubbing and Roving Frames.
Year: 1893

page_text: Date of Application, 17th June, 1893
Complete Specification Left, 14th Mar., 1894-Accepted, 14th Apr., 1894
PROVISIONAL
SPECIFICATION.
'Improvements in Slubbing and Roving Frames.
We, 'WILLIAM TAYLOR, of 166, Longsight, Mill Manager, and JACOB TAYLOR,
of 84, Trinity Street, Cotton Carder, both of Oldham, in the County of Lancaster,
do hereby declare the nature of this invention to be as follows:-
Our invention relates to improvements in slubbing and roving frames and has for
its object to prevent the strain on the sliver when setting the frame in motion,
especially in cases where the bobbin follows the spindle and flyer in its revolution.
Hitherto, owing to a defect which this invention removes, slubbing and roving
frames in which the bobbin follows the spindle in its revolution, known as right
hand frames, though possessing several advantages, have been largely superseded by
frames in which the bobbin runs in advance of the flyer, and known as left hand
frames. The defect referred to is that the spindles commence their movement in
advance of the bobbins thus causing a stretching of the sliver which injures it. This
defect is brought about in the following manner :
First, when the frame is fully in motion the effect of the pressure of the flyer
presser on the bobbin is that, sufficient power is thus applied to turn the 'bobbins,
leaving the wheels, connected with the driving arrangement for the bobbins, 'no'duty
to perform beyond holding back the bobbins from going too fast.
Second, when the frame is stopping the momentum of the bobbins is sufficient to
keep the wheels connected with their driving arrangement in the same state as
above described, namely, the back parts of the teeth in contact with each other.
"Third, when the frame starts the pressure of 'the' flyer presser, being dependent
on centrifugal force, does not come into operation instantly the frame starts, con-
sequently the teeth of the wheels in the driving arrangement for the bobbins come
in contact at the front or driving side causing the bobbins to be behind the spindle
in starting to the extent of the total back lash in the wheels of the driving
arrangement' for the bobbins.
F
To remedy these 'defects we employ in the train of wheels which drive the spindles
preferably on the driving shaft of the frame, a spring wheel in lieu of an ordinary
wheel, the spring or springs of which are strong enough to propel 'the spindles
when the 'frame is in full motion, 'but which yield at the moment of inertia
of the spindles at starting, thus causing the spindles to dwell equally with' the
bobbins.
This spring wheel we preferably mount loosely on a 'bush suitably fixed to the
said shaft and provide the boss 'thereof with a 'screw or stud projecting into a slot
or opening formed in the eaid' bush which is 'equal in width to the back lash in the
train of wheels for which it is desired to compensate. One end of the said spring
is fixed to the said bush by means of a screw or stud passing through a slot formed
in the boss of the wheel, whilst the other end is attached to near the periphery of
the said wheel.
.
In lieu of employing only one spring two may be similarly used.
A defect similar as hereinbefore described but in a less degree is present in case'
of the left hand frame in which the bobbins start in advance, and is thus, the
invention described, equally applicable thereto, it is however necessary to cause the
spring wheel to drive the bobbins and not the spindles.
· Dated this 16th day of June 1893.
F. BOSSHARDT & CO.,
Agents to Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Slubbing and Roving Frames.
We, WILLIAM TAYLOR, of 166, Longsight, Mill Manager, and JACOB TAYLOR,
of 84, Trinity Street, Cotton Carder, both of Oldham, 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 described and ascertained in and by the following
statement:-
Our invention relates to improvements in slubbing and roving frames and has
for its object to prevent the strain on the sliver when setting the frame in motion,
especially in cases where the bobbin follows the spindle and flyer in its revolution.
Hitherto, owing to a defect which this invention removes, slubbing and roving
frames in which the bobbin follows the spindle in its revolution, known as right
hand frames, though possessing several advantages, have been largely superseded
by frames in which the bobbin runs in advance of the flyer, and known as left hand
frames. The defect referred to is that the spindles commence their movement in
advance of the bobbins thus causing a stretching of the sliver which injures it.
This defect is brought about in the following manner:
First, when the frame is fully in motion the effect of the pressure of the flyer
presser on the bobbin is that sufficient power is thus applied to turn the bobbins,
leaving the wheels, connected with the driving arrangement for the bobbins, no
duty to perform beyond holding back the bobbins from going too fast.
Second, when the frame is stopping the momentum of the bobbins is sufficient
to keep the wheels connected with their driving arrangement in the same state as
above described, namely, the back parts of the teeth in contact with each other.
Third, when the frame starts the pressure of the flyer presser, being dependent
on centrifugal force, does not come into operation instantly the frame starts,
consequently the teeth of the wheels in the driving arrangement for the bobbins
come in contact at the front or driving side, causing the bobbins to be behind the
spindles in starting to the extent of the back lash in the wheels of the driving
arrangement for the bobbins.
To remedy these defects we employ in the train of wheels which drive the
spindles, preferably on the driving shaft of the frame, a spring wheel in lieu of
an ordinary wheel, the spring or springs of which are strong enough to propel the
spindles when the frame is in full motion, but which yield at the moment of inertia
of the spindles at starting, thus causing the spindles to dwell equally with the
bobbins.
And in order that our invention may be more fully understood we have
caused to be appended hereunto one sheet of drawings marked with letters of
reference indicating like parts in the various figures.
Fig. 1 is a side view and Fig. 2 a section of the said spring wheel.
Figs. 3 & 4 are views of the driving end of a right and left hand frame
respectively at a reduced scale, showing how the said spring wheel may be
applied.
a is the spring wheel. & its spring, c the driving shaft, the frame end.
In carrying out our invention we preferably mount the spring wheel a loosely
upon a bush suitably fixed to the shaft c and provide the boss a' thereof with a
screw or stud projecting into a slot or opening e¹ formed in the bush e which is
equal in width to the back lash in the train of wheels g for which it is desired to
compensate. One end of the spring bis fixed to the bush e by means of a screw
or stud passing through a slot as formed in the boss of the wheel a, whilst the
other end is attached to a stud i near the periphery of the spring wheel a. In lieu
of employing only one spring 6 two may be similarly used of the type shown or of
any other suitable type as will be readily understood.

page_text: A defect similar as hereinbefore described but in a less degree is present in case
of the left hand frame in which the bobbins start in advance, and is thus, the
invention described, equally applicable thereto, it is however necessary to cause the
spring wheel a to drive the bobbins and not the spindles, as shown in Fig. 4.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim, is-
"In slubbing and roving frames'
"
1st. The use and employment, in the train of wheels which drives the spindles or
bobbins, of a wheel under the influence of a spring or springs, one end of which
is secured to the said wheel and the other end directly or indirectly to the
respective shaft and is adapted to yield at the moment of inertia of the spindles
and thus cause the spindles to dwell equally with the bobbins, substantially as
set forth.
2nd. In combination with the means specified in the preceding claim, a screw
or stud carried by the spring wheel a, the end of which screw or stud projects
into a slot el in width equal to the back lash in the train of wheels for which it is
desired to compensate, substantially as set forth.
Dated this 13th day of March 1894:
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicants.