Improvements in and relating to Automatic Stop Motions for Spinning Machines and the like.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Automatic Stop Motions for
Spinning Machines and the like.
I, JAMES FRASER, of 3, Balmore Street, Dundee, Forfarshire, late Mill
Manager, do hereby declare the nature of my invention to be as follows:-
This invention has reference to improvements in and relating to automatic
stop motions for spinning and similar machines.
According to my improvements I fulcrum a rod to turn or swivel near its
centre on one of the retaining or feed rolls of the machine, and on each of the
ends of this rod radial arms project, one above and one below, the retaining
rolls, these arms being formed with eyes or slots through which the rove or
thread passes on its way to the drawing rolls and flyer of machine, one of these
swivelling rods and arms being fitted in connection with each rove bobbin.'
The rove or thread passes through slots in a horizontal rove guide rod above
the retaining rolls before passing through the eyes in swivelling rod.
Brackets or arms project down vertically from the horizontal guide rod, and
helical or like springs connect their lower end with the lower end of the swivel-
ling rod.
When the rove or thread is in normal working order, the swivelling rod
assumes a vertical position with its arms horizontal the rove stop is fixed behind
The lower arm
the drawing rolls and has vertical arms balanced on their axes.
rests on the thread between the drawing roll and flyer and the upper arm which
is mounted with a hackle gill, comes into action by the breaking of a thread
and the rove is arrested at the "nip" of the drawing rolls and becomes slack
in consequence of its continuing to be delivered by the retaining rolls, but the
tension of the thread on the radial arms of swivelling rod being now relieved
the reaction of the springs will pull up the lower end of swivelling rod, and
this will press forward its top end, and further delivery of the thread or rove
will consequently be stopped. This result may also be obtained by the top
radial rod being weighted so as to push the rove out from between the retaining
rolls when the rove becomes slack.
In re-starting again to bring the rove back to its position between the retain-
ing rolls, the operator pushes back the rove stop, and pulls the rove into line,
and the swivelling rod will by the tension on the rove be brought into vertical
position.
Dated the 8th day of March 1899.

page_text: Improvements in and relating to Automatic Stop Motions for
Spinning Machines and the like.
I, JAMES FRASER, of 3, Balmore Street, Dundee, Forfarshire, late Mill
Manager, do hereby declare the nature of my invention and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement in writing reference being made to the accompanying
drawings.
This invention has reference to improvements in and relating to automatic
stop motions for spinning and similar machines, and more particularly applicable
to the spinning of the stronger classes of yarns.
And in order that my said invention and the manner of carrying same into
practice may be properly understood, I have hereunto appended a drawing repre-
senting an elevation of my stop motion as applied to a spinning machine.
Referring to said drawings:
According to my improvements I fulcrum a rod A to turn or swivel near its
centre A on a kneed bracket A2 near one of the retaining or feed rolls B of the
machine, and on each of the ends of this rod kneed arms a project, one above and
one below the retaining rolls B. these arms being formed with eyes or slots
through which the rove or thread Z passes on its way to the drawing rolls C CL
and flyer D of machine, one of these swivelling rods and arms being fitted in
connection with each rove bobbin. The rove or thread Z passes through slots E¹
in a horizontal rove guide rod E above the retaining rolls B before passing
through the eyes in the arms a of the swivelling rod A.
The brackets or arms A2 which project down vertically from the horizontal
guide rod E would have a helical or like spring a connecting their lower end
with the lower end of the swivelling rod A, as shown on the right hand bracket or
alternatively a weight a may be mounted on the top arm a as shown on the left
hand bracket A²
:
When the rove or thread Z is in normal working order, the swivelling rod A
assumes a vertical position with its arms horizontal. The rove stop is fixed
behind the drawing rolls C C and has vertical arms F balanced on their axes. F¹.
The lower arm F rests on the thread Z between the drawing rolls C and flyer D
and the upper arm F3 which is mounted with a hackle gill, comes into action
by the breaking of a thread and the rove is arrested at the "nip" of the drawing
rolls C and becomes slack in consequence of its continuing to be delivered by the
retaining rolls B; but the tension of the thread Z on the radial arms of swivel-
ling rod A being now relieved, the reaction of the springs a will pull up the lower
end of swivelling, rod A and this will press forward its top end, and further
delivery of the thread or rove Z will consequently be stopped. This result may
also be obtained by the top radial arm being weighted at a³ so as to push the
rove out from between the retaining rolls B when the rove becomes slack.
In re-starting again to bring the rove back to its position between the retain-
ing rolls B the operator pushes back the rove stop F and pulls the rove Z into
line, and the swivelling rod A will by the tension on the rove be brought into
vertical position.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is―
First. An automatic stop motion for spinning machines and the like, con-
structed and operated in the manner herein set forth.

page_text: Second. In spinning machines and the like an automatic stop motion compris-
ing a swivelling device through which the rove passes in combination with a rove
stop, substantially as herein set forth.
Third. In automatic stop motions for spinning machines and the like the
arrangement of swivelling device through which the rove passes, substantially as
herein set forth.
Doted the 8th January 1000
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.