Improvements in Machinery for Twisting Yarus or Threads,
Year: 1899

page_text: Date of Application, 9th May, 1899
Complete Specification Left, 29th Jan., 1900-Accepted, 17th Mar.,
1900
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Twisting Yarus or Threads,
We, THOMAS ALEXANDER BOYD, Engineer, Shettleston Iron Works, and J. &
T BOYD, LIMITED, Engineers & Machine Makers, Shettleston Iron Works,
Shettleston, in the County of Lanark, do hereby declare the nature of this inven-
tion to be as follows:-
Our invention consists chiefly in improved means of twisting yarns through
water also of stopping and starting upright delivery rollers in twisting frames in
combination with or apart from mechanism for stopping and starting spindles:
also in the means of covering upright delivery rollers.
The first part of our invention relates to these improvements as applied to
automatic stop motion twisting frames such as are shewn and described with
reference to Fig. 1. in the Specification of Patent applied for by Thomas
Instead of using a
Alexander Boyd, No. 16924, dated August 5th, 1898.
horizontal feed roller with a top roller for delivering the yarn we employ an
upright feed roller; the yarn being passed around the roller is drawn from the
creet and delivered to the twisting spindle. The same stop motion mechanism,
with slight modification, is employed to lift the upright feed roller out of its
driving (which may be by bevels or clutches or otherwise) by the direct action
In carrying
of the upright rod when it has been set free and rises.
we mount on
invention in one arrangement,
out this part of
at its
the top rail a pillar carrying a vertical spindle which has
at its lower end, and
upper end a leather covered feed roller and
within the top rail a bevel pinion. This pinion engages with and is driven by a
bevel pinion on a longitudinal shaft which is carried on bearings inside the
The vertical spindle is mounted
top rail along the whole side of the frame.
our
so that the bevel at the lower end cannot, when working, get too deeply into gear,
but so that it can be lifted sufficiently to withdraw the bevel from its driver and
thus stop the feed roller. The upright rod has fixed to its upper end, just below
the feed roller a kneed wire which on the upright rod rising, engages with and
lifts the top feed roller out of driving. It will thus be easily understood that on a
thread failing the stop motion mechanism stops the spindle and the feed roller
and when required the worker starts them both simultaneously. We desire to
emphasize one principal feature of this part of our invention, riz:-that we
employ an upright rod which on being set free by detector mechanism lifts the
upright roller out of driving by direct contact.
lever
The second part of our invention relates to twisters chiefly for 2 ply yarns so
thread that
balance
with a
arranged
controlled by the twisted
on one of the yarns failing the other yarn unspins and also fails
causing the feed roller which is also upright to stop and thereby preventing
We shall describe an arrangement of this
the further delivery and waste of yarn.
part of our invention for stopping the delivery rollers which may be used alone
or in combination with mechanism for stopping the spindle after the feed roller
is stopped and of starting the feed roller and spindle simultaneously when twisting
is to proceed. In carrying out the same we employ in one modification a bracket
fixed to the top framing rail, and on the bracket a pillar which carries a vertical
5 spindle. On the top end of the spindle is an upright leather covered feed roller

page_text: The
and at the lower end within the top rail a bevel pinion. Within the rail
is carried a horizontal shaft upon which are bevels to drive those on the upright
spindles. Around the lower end of the upright roller is a cam shaped part.
pillar bracket on the top rail has two snugs which carry next to the pillar a
balance lever. This balance lever has an upwardly projecting part which stands
in front of the upright roller and clear of it when the front end of the balance
lever is kept down by the thread. But on the thread failing and the front end
of the balance lever rising, the upwardly projecting part falls into the path of
the cam at the lower end of the upright roller whereupon the roller by its own
revolution and the action of the cam lifts itself out of gear with the driving
bevel on the longitudinal shaft and thus the delivery of the yarn is stopped. In
front of and below the cross wire which carries the balance lever is another
cross wire carrying a tumbler lever and the upper end of an upright rod with a
spindle brake at its lower end as shewn and described with reference to Fig. 3
in the Specification of Patent No. 16924 dated August 5th, 1898. When the
upright roller has stopped, the worker by the tumbler lever brakes the spindle.
When twisting is ready to proceed the worker depresses the balance lever which
operates the tumbler lever at the same time thus starting the upright feed roller
and the spindle simultaneously. The upright roller may be driven by bevels
alone or through a clutch or otherwise.
Another part of our invention refers to the construction of upright feed rollers
such as those above referred to. In one arrangement we employ a cup shaped
metal roller casting solid at its lower end and open at its upper end and slightly
tapered inside. The roller may either be fixed on to its upright spindle or
removable. We carry the spindle to the height of the upper edge of the roller
and we form a screw on the top of the spindle. On the top of the spindle we
screw a metal disc which projects over the edge of the roller and its covering and
has a slight flange projecting downwards to protect the covering. The covering
of the roller may be of leather or other frictional material. We form a longi-
tudinal slit in the periphery of the roller and we carry the covering through
this slit and fix it inside of the roller. The covering may be a strip or an endless
band. The fixing may be accomplished in various ways. We prefer to employ a
band cemented at the ends and forming an endless band. We place this band
round the roller and carry it in doubled or loop form through the slit and we
insert within the loop part a pin tapered in the opposite direction to the taper
of the inside of the top roller. This pin draws the covering tight around the
roller and is easily removable for putting in new covering.
The third part of our invention refers to the combination of upright delivery
rollers with a water trough for wet twisting of yarns. In carrying out the same
we employ in one arrangement a water trough placed above the top main rail
of the twister in a convenient position between the creel and the guide for the
varn above the twisting bobbin. This trough runs along the whole side of the
machine. In the centre of the trough we mount an upright delivery roller formed
like an inverted cup and fixed to the top of a vertical spindle. This spindle
passes through the bottom of the water trough and is driven at its lower end
by bevel wheels as described in the preceding part of this specification. A tube
is fixed in the hole in the water trough through which the spindle passes. This
tube passes upwards inside the cup shaped upright feed roller to a point above
the water line in the trough. On the under side of the trough there is fixed upon
the spindle a collar or a cam by which stop motion mechanism such as is described
in this specification under what we have termed the first part and the second
part of our invention acts upon the upright feed roller.
Dated this 8th day of May 1899.
T. A. BOYD,
J. & T. BOYD, LIMITED,
R. H. BOYD,
Director and Secretary.

page_text: Improvements in Macṇinery for I wis
We, THOMAS ALEXANDER BOYD, Engineer, Shettleston Iron Works, and J. &
T. BOYD, LTD., Engineers and Machine Makers, Shettleston Iron Works,
Shettleston, in the County of Lanark, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:
-
Our invention consists chiefly in improved means of twisting yarns also of
stopping and starting upright delivery rollers in twisting frames in combination
with or apart from mechanism for stopping and starting spindles: also in the
means of covering upright delivery rollers as shewn and described with reference
to the accompanying drawings Figs. 1, 2, and 3.
The first part of our invention relates to these improvements as applied to.
automatic stop motion twisting frames such as are shewn and described with
reference to Fig. 1. in the Specification of Patent applied for by Thomas
Alexander Boyd, No. 16924, dated August 5th, 1898. Instead of using a
horizontal feed roller with a top roller for delivering the yarn we employ an
upright feed roller; the yarn being passed around the roller is drawn from the
creel and delivered to the twisting spindle. The same stop motion mechanism,
with slight modification, is employed to lift the upright feed roller out of its
driving (which may be by bevels or clutches or otherwise) by the direct action
of the upright rod when it has been set free and rises. In carrying out this part
of our invention in one arrangement, we mount Fig. 1, on the top rail 1, a
pillar 2, carrying a vertical spindle 3, which has at its upper end a leather
covered feed roller 4, and at its lower end, and within the top rail a bevel
pinion 5. This pinion 5, engages with and is driven by a bevel pinion 6, on a
longitudinal shaft 7, which is carried on bearings inside the top rail 1, along the
whole side of the frame. The vertical spindle 3, is mounted so that the bevel 5,
at the lower end cannot, when working, get too deeply into gear, but so that
it can be lifted sufficiently to withdraw the bevel 5, from its driver 6, and thus
stop the feed roller 4. The upright rod 8, has fixed to its upper end, just below
the feed roller a kneed wire 9, which on the upright rod rising, engages with
and lifts the top feed roller 4, out of driving. It will thus be easily understood
that on a thread failing the stop motion mechanism stops the spindle 10, and
the feed roller 4, and when required the worker starts them both simultaneously.
We desire to emphasize one principal feature of this part of our invention, viz:
5 that we employ an upright rod which on being set free by detector mechanism lifts
the upright roller out of driving by direct contact.
The second part of our invention relates to twisters chiefly for 2 ply yarns so
arranged with a balance lever controlled by the twisted thread that on one of the
yarns failing the other yarn unspins and also fails causing the feed roller which
is also upright to stop and thereby preventing the further delivery and waste
of yarn. We shall describe an arrangement of this part of our invention for
stopping the delivery rollers which may be used alone or in combination with
mechanism for stopping the spindle after the feed roller is stopped
and of starting the feed roller and spindle simultaneously when twisting
saine we employ Fig. 2, in
5 is to proceed. In carrying out the
a bracket 11 fixed to the top framing rail 1, and
one modification

page_text: on the bracket a pillar 11', which carries a vertical spindle 12. On
the top end of the spindle is an upright leather covered feed roller 13, and at the
lower end within the top rail a bevel pinion 5. Within the rail is carried a
horizontal shaft 7 upon which are bevels to drive those on the upright spindles.
Around the lower end of the upright roller is a cam shaped part 13. The pillar
bracket 11 on the top rail 1, has two snugs 112, which carry next to the pillar
a balance lever 14. This balance lever 14, has an upwardly projecting part 14',
which stands in front of the upright roller 13, and clear of it when the front end
of the balance lever is kept down by the thread. But on the thread failing and
the front end of the balance lever rising, the upwardly projecting part 14',
falls into the path of the cam 131, at the lower end of the upright roller 13,
whereupon the roller 13, by its own revolution and the action of the cam lifts itself
out of gear with the driving bevel 6, on the longitudinal shart 7, and thus the
delivery of the yarn is stopped. In front of and below the cross wire 15, which
carries the balance lever 14, is another cross wire 16, carrying a tumbler lever 17,
and the upper end of an upright rod 18, with a spindle brake 19, at its lower end
as shewn and described with reference to Fig. 3, in the Specification of Patent
No. 16924 dated August 5th 1898. When the upright roller 13, has stopped, the
worker, by the tumbler lever 17, brakes the spindle 20. When twisting is ready
to proceed the worker depresses the balance lever 14, which operates the tumbler
lever 17, at the same time, thus starting the upright feed roller 13, and the
spindle 20 simultaneously.. The upright roller may be driven by bevels alone or
through a clutch or otherwise.
Another part of our invention refers to the construction of upright feed rollers
such as those above referred to. In one arrangement Fig. 3, we employ a cup
shaped metal roller casting 21, solid at its lower end and open at its upper end
and slightly tapered inside. The roller may either be fixed on to its upright
spindle 22, or removeable. The covering of the roller may be of leather or other
frictional material. We form a longitudinal slit 211, in the periphery of the
roller and we carry the covering through this slit and fix it inside of the roller.
The covering may be a strip or an endless band. The fixing may be accomplished
in various ways. We prefer to employ a band cemented at the ends and forming
an endless band. We place this band round the roller and carry it in doubled
or loop form through the slit 211, and we insert within the loop part a pin 23,
tapered in the opposite direction to the taper of the inside of the top roller. This
pin draws the covering tight round the roller and is easily removeable for putting
on new covering.
CLAIMS.
Having now particularly described and ascertained the nature of this said
invention, and in what manner it may be performed we declare that what we
claim is:-
(1) In twisting frames the combination of stop motion mechanism for slackening
the band, braking the spindle and lifting an upright feed roller out of driving
substantially as described with reference to Fig. 1.
(2) In twisting frames the combination of balance lever controlled by the
twisted thread for automatically stopping the feed roller on the failure of the
thread with mechanism by which the worker thereafter brakes and stops the
spindle and starts the feed roller and spindle again simultaneously.
(3) In twisting frames an upright feed roller having a cam or spiral in com-
bination with a balance lever such as referred to in Claim 2 wharshy an the nation

page_text: (5) In twisting frames the improved means of securing upon upright roners a
covering of leather or other frictional material substantially as and for the
purpose described with reference to Fig. 3.
£ January 1900.
T. A. BOYD,
J. & T. BOYD, LIMITED.
R. H. BOYD,
Director.