Improvements in or Applicable to Spinning and Doubling Frames and other similar Machines.
Year: 1888

page_text: Date of Application, 1st Sept., 1888
Complete Specification Left, 1st June, 1889-Accepted, 20th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in or Applicable to Spinning and Doubling Frames
and other similar Machines.
I THOMAS HENRY FALLOWS of Bullfield Mill, Bolton in the County of Lancaster,
Doubler, do hereby declare the nature of my said 'invention to be as follows:-
This invention relates to improvements in or applicable to doubling frames and
other similar machines, such as, throstles, or other machines employed for spinning
and doubling yarn or thread, and has for its object that of preventing the same
being wound round the delivery rollers in case of breakage between the rollers
and the flyer or its equivalent, thereby reducing the loss from this cause to a
minimum.
This I accomplish by mounting in suitable bearings on the cap bar a lever frame
or frames, the fulcrum of which are situated above or higher than the axis of the
lower delivery rollers. The lever frame or frames is provided with jaw ends in
which are disposed the centres of the upper delivery or press rollers for determining
the correct working position of the same on the lower delivery rollers. The arm
of each lever frame is constructed to allow the yarn or thread to pass over it
in its passage from the rollers to the flyer or its equivalent. To prevent the "drag
on the yarn or thread operating on the top delivery or press roller an adjustable
or other rod is provided underneath the said lever frame or frames, and is mounted
in any convenient manner to the frame or machine.
"
Each lever frame is balanced so that immediately the yarn or thread breaks the
position of the lever frame is altered so as to allow the top roller to run out of
contact with the bottom roller into suitable bearings attached to the cap bar or
otherwise, by which the delivery of the yarn or thread will be stopped instantly.
For the purpose of maintaining the position of the delivery or press rollers on the
lever frames when the machine is stopped the aforesaid rod mounted under the same
is provided with hooks or their equivalents which arrest or hold the same, being
operated by hand or otherwise from any convenient part of the machine.
If desired the hooks or their equivalents can be attached to a separate rod.
Dad the 21st August 1888
EDMUND CHADWICK,
A cent
COMPLETE SPECIFICATION.
Improvements in or Applicable to Spinning and Doubling Frames
and other similar Machines.
I, THOMAS HENRY FALLOWS of Bullfield Mill, Bolton in the County of Lancaster,
Doubler, do hereby declare the nature of my said 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 improvements in or applicable to doubling frames and
other similar machines, such as, throstles, or other machines employed for spinning
and doubling yarn or thread, and has for its object that of preventing the same being
wound round the delivery rollers in case of breakage between the rollers and the
flyer or its equivalent, thereby reducing the loss from this cause to a minimum.
This I accomplish by mounting in suitable bearings on the cap bar a lever frame or
frames, the fulcrum of which are situated above or higher than tho axis of the lower
delivery rollers. The lever frame or frames is provided with jaw ends in which are
disposed the centres of the upper delivery or press rollers for determining the correct

page_text: ".
"
working position of the same on the lower delivory rollers. The arm of each lever
frame is constructed to allow the yarn or thread to pass over it in its passage from the
rollers to the flyer or its equivalent. To prevent the drag on the yarn or thread
operating on the top or press roller an adjustable or other rod is provided underneath
the said lever frame or frames, and is mounted in any convenient manner to the
frame or machine. Each lever frame is balanced so that immediately the yarn or
thread breaks the position of the lever frame is altered so as to allow the top roller to
run out of contact with the bottom roller into suitable bearings attached to the cap
bar or otherwise, by which the delivery of the yarn or thread will be stopped
instantly.
For the purpose of maintaining the position of the delivery or press rollers on
the lever frames when the machine is stopped the aforesaid rod mounted under the
same is provided with hooks or their equivalents which arrest or hold the same, being
operated by hand or otherwise from any convenient part of the machine.
If desired the hooks or their equivalents can be attached to a separate rod.
Fig. 1 is a sectional elevation of my invention through line A' B' in Fig. 3-
Fig. 2 is a front elevation of same, and Fig. 3 a plan with the lower or driven roller A
removed.
A is the lower or driven roller; B the upper or press roller indicated by dotted
lines, and C is the cap-bar with the arms 1 containing the bearings E. The latter
are provided to receive the centres F of the cradles or lever-frames G. The cradles
or lever-frames G have the jaws H in which the centres I of the upper or press
rollers B are held and rotated by the action of the roller A. The yarn or thread O
runs over the cross bar J of the cradle or lever-frame G as it passes from the
rollers A and B, as shown in Fig. 1, to the flyer or its equivalent. The centres of
the rollers B press or bear and rotate against the back side of the jaws H, and by
drag
their action tend to depress the same, which is overcome by the tension or
of the yarn or thread O on the cross bars J of the cradles or lever-frames G. The
amount of this action of the centres I on the jaws H may be varied either by placing
the centres of the rollers B more or less behind the vertical centre line of the
roller A, or by altering the balance of the cradles or lever-frames G, or by both.
together. The tension or "drag" of the yarn or thread on the crossbars Jis
prevented from causing the bottom of the jaws H of the cradles or lever-frames G to
come in contact with the centres I of the rollers B, or, from having any influence on
the cradles or lever-frames G, except to maintain the position of the rollers B whilst
the yarn or thread O is unbroken, by the front edge of the projections K of the
cradles or lever-frames G bearing against the back of the projections of the
arms as in Figs. 1, 3, and 5. When the yarn or thread O breaks the action of
the centres of the rollers B depress the jaws H of the cradles or lever-frames Gas
in Fig. 4, and the rollers B of their own action roll away on the slides L to the
recesses Y of the arms D on the cap-bar (, upon which the peripheries of the rollers B
rest, thus forming a powerful brake which prevents any chance of further yarn or
thread being drawn off. When the peripheries of the rollers B rest on the cap-bar C
the centres are lifted from the bottom of the recesses Y, thus placing the whole
weight of each roller B on the cap-bar C, which instantly stops the delivery of yarn
or thread. The brake can be increased by making the top side of the cap-bar C
concaved to the radius of the rollers B as shown in Fig. 6.
In lieu of the projections K and the projections L'any other well known mechanical
appliance may be employed for preventing the rollers B being lifted or eased from
the rolier A by the action of the tension or "drag" on the yarn or thread O.
The projections L' of the arms D are provided with the semicircular or other
recesses or bearings Z in which the centres I of the press rollers B may be placed
when the latter are not required as in Fig. 6, and which will allow of the yarn or
thread (being drawn over the roller A without pressure.
When operating on fine yarns or threads wherein a light tension or "drag" is
requisite it is necessary the position of the rollers B on the roller A be maintained
when the machine is stopped to prevent the rollers B sliding or. rolling out and

page_text: reaking the yarn or thread. To accomplish this I provide the rod N
<<
attached
he cap-bar by the bearings R or otherwise as desired. The rod N is fitted with
he fingers S, which, when in the position shown in Fig. 1, prevent the cradles or
ever-frames G tilting by their contact with the projections T on the back side of the
aws H. The rod N is operated by the handle U, and is locked in position by the
catch or pawl" "V mounted on the frame of the machine. Other mechanical con-
rivances may be employed for operating and locking the rod N and fingers S.
Immediately the machine is set in motion the fingers S are placed in the position
" pawl" V, when the
shown in Fig. 4 by releasing the handle U from the catch or
cradles or lever-frames G can operate independently of each other in case the yarn
or thread O breaks.
38
When ordinary yarn or thread is being operated upon and the usual or a heavy
drag" is employed the fingers S and their attachments can be dispensed with as
shown in Fig. 5.
I would have it understood that I am aware that cradles or lever-frames have been
employed for supporting the upper or press rollers B when the yarn or thread remained
unbroken, and for allowing the same to roll away in case the yarn or thread broke.
In cradles or lever-frames at present or hitherto employed in twisting and doubling
frames a serious defect has existed, which is occasioned by the centres of the upper
or press rollers resting or riding on bearings on the back side of the cradles or
drag" of the yarn or
lever-frames, and which by the nction of the tension or
thread on the crossbars lift or ease the press rollers from the lower or driven roller,
thereby interfering with the action and purpose for which they were intended. This
defect is very detrimental to the production of even yarn or thread and detracts
from the value of the same very materially, and which my invention is intended to
obviate.
<
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In Twisting or Doubling Frames and other similar machines the use of the
cradles or lever-frames G and cross bars J provided with the jaws H of such a form
and size that the bottom of same will not operate on the centres I of the rollers B, and
the projections K or their equivalents in combination with the projections L' or
their equivalents on the arms D, for the purpose of preventing the press rollers B
drag
being lifted or eased from the roller A or interfered with by the tension or
on the yarn or thread when the latter is unbroken, substantially as described and
as shown on the drawings.
ti
"
2. In combination with the mechanism described in the preceding claim the use of
the fingers S mounted on the rod N, substantially as described and illustrated on
the drawings for the purpose specified, or any inere modification thereof.
3. Concaving the upper side of the cap-bar C to receive the peripheries of the
press rollers B for the purpose specified.
Dated the 28th May 1889.
SETTATO
CHADWICK
EDMUND CHADWICK
Agent.