Improvements in Spinning and Twisting Machinery.
Year: 1890

page_text: Date of Application, 23rd Sept., 1890-Accepted, 25th Oct., 1890
COMPLETE SPECIFICATION.
Improvements in Spinning and Twisting Machinery.
I, EDMUND DAWES, of 3632 Frankford Avenue, in the City of Philadelphia, State
of Pennsylvania, United States of America, Rope Maker, 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:--
My invention consists of certain improvements in that class of machines which are
employed for spinning rope yarns, or for making rope, twine or cord by twisting a
number of strands together, and my invention relates especially to the means for
traversing the guide for laying the rope twine cord or yarn upon the spool or bobbin
on which it is to be wound.
In the accompanying drawing :-
Figure 1 is a longitudinal section of a single spindle of a spinning or twisting
machine, constructed in accordance with my invention;
Figure 2 is a transverse section of the same on the line 1-2;
Figure 3 is a transverse section on the line 3-4;
Figure 4 is a transverse section on an enlarged scale, of the traversing guide of the
machine; and
Figure 5 is a longitudinal section illustrating a modification of the invention.
To opposite bearings in the fixed frame of the machine is adapted a hollow spindle a,
which carries the flyer B of the machine, and is rotated by means of a pulley b, the
latter receiving a belt from a pulley on any available counter-shaft, so as to impart
rotating motion to the flyer frame for the purpose of properly laying or twisting the
strands of which the rope, twine, cord or yarn is to be composed.
The spool D is rotated so as to wind up the rope, twine, cord, or yarn thereon, by
means of a tubular shaft or spindle d passing through the shaft a at one end of the
frame, and having at its inner end a friction clutch d¹ engaging with one head of
the spool, the other end of the shaft having a pulley d², for receiving a belt whereby
the spool is driven at the proper rate of speed to wind up the rope, cord or yarn as it
is formed.
The spool is supported in the flyer by means of a central spindle e, which has at one
end a bearing in a cross bar forming part of the flyer frame, the said spindle passing
through the hollow shaft d, and being held by a clip el, at its outer end but being free
to be withdrawn when the retaining clip is removed, so as to permit the removal of
the filled spool and the insertion of an empty one.
In the opposite bearing of the frame is a hollow shaft f, driven by a belt adapted to
a pulley this shaft having a pulley f, for driving a like shaft f of an adjacent
machine, when the two machines are mounted in the same frame. The shaft has at
its inner end a pinion g, which drives two spur wheels h h on the shafts of a pair of
grooved drawing drums F.
The slivers or strands pass through the hollow shaft f and are twisted together by
reason of the rotation of the flyer, the twisted strands passing around the pair of
drawing drums F and being delivered thereby over a suitable guide roller g¹ to the
traversing guide or carriage G, whereby the twisted strands are properly laid upon
the spool, this traversing carriage being reciprocated so as to lay the rope, cord or
yarn from one end of the spool to the other, and the mechanism for reciprocating the
carriage constituting the main feature of my invention.
The carriage is connected to a belt or band i, which passes around suitable guide
pulleys on the frame of the machine, the ends of this belt or band being connected
to drums I, which are mounted upon one of the heads of the flyer, each of these
drums having a bevel pinion a, which engages with a hevel wheel ¹ forming part of a
disc 1', which can turn freely on a sleeve h¹, surrounding the shaft f.

page_text: The disc I' has a series of pins or teeth, forming a segmental rack m, with which
engages a pinion n at one end of a shaft n', which is adapted to a bearing in the frame of
the flyer B and is provided with a worm wheel p with which engages a worm plon a
shafts likewise adapted to a bearing on the frame of the flyer, and having a bevel
pinion t engaging with a bevel wheel on one of the drawing drums F.
As the shaft n' is rotated, therefore, the pinion n engages with the segmental
rack m,
first on the outside thereof and then on the inside, the pinion passing around
one end of the rack from the inside to the outside, and around the other end of the
rack from the outside to the inside, the shaft n' having sufficient play in its bearing to
permit this movement. A to and fro vibrating movement will therefore be imparted
to the rack and to the disc I¹ and its bevel gear a¹, and the drums I will be rotated
first in one direction, and then in the other, the ends of the band or belt i controlling
the traversing guide being thus alternately wound upon and unwound from the drums,
and the guide being compelled to reciprocate on its bearings from one end of the
spool to the other, it being understood, that the ends of the belt are so attached to the
drums that as one winds up the belt, the other unwinds it.
In order that the guide may be firmly supported upon its bearings and prevented
from being twisted out of place thereon, the rod M, upon which the guide is mounted
has opposite grooves w, as shown in Figure 4, and the guide has antifriction rollers w¹,
running in these grooves, so as to prevent twisting of the guide on the rod, and insure
the proper steadiness of movement without causing excessive friction.
In the modified form of machine shown in Figure 5, the independent drums I, and
the gearing for driving them are dispensed with, four guide pulleys i, two at each
end of the flyer, being, employed, and the ends of the belt or band i, being attached
to a drum N, which forms part of the hub of the disc I*.
I am aware that guide operating mechanism, consisting of a band, a drum, a
segmental rack, and a pinion for operating the latter, has been heretofore employed
in spinning or twisting machines, the mechanism being mounted upon one of the side
bars of the flyer frame so as to be carried round therewith.
In my machine, however, the segmental rack and the winding drum or drums are
mounted so as to be concentric with the axis of rotation of the flyer, or in equilibrium
on the same, hence, they have no tendency to disturb the proper balance of the flyer
whatever may be the rate of speed at which it is driven.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
First. The hereinbefore described mechanism for effecting the reciprocation of the
traversing guide of a spinning or twisting machine, the said mechanism comprising a
band or bands connected to the guide, a wheel or disc mounted concentrically with
the axis of the flyer of the machine, and having a segmental rack, one or more
winding drums mounted in equilibrium in respect to the axis of the flyer and driven
by the said wheel or disc, and a rotated shaft having a pinion which engages alternately
with the inside and outside of the segmental rack, and thereby imparts a forward
and backward movement to the wheel or disc carrying the rack, substantially as
herein before described.
Second. The combination of the rotating flyer and its winding spool, with the
traversing guide and reciprocating mechanism therefor comprising a band, or bands,
connected to the said guide, and connected at the ends to a pair of drums mounted on
opposite sides of the axis of the flyer, a wheel or disc mounted concentrically with
the said axis, and geared to the drums, a segmental rack carried by the said wheel
or disc, and a rotated shaft having a pinion which engages with the said rack and
imparts a to and fro movement thereto, substantially as herein before described.
Third. The combination of the rotating flyer and its winding spool, the rotated
draft drums, the traversing guide, and reciprocating mechanism for the latter comprising
a band or bands connected to the guide, a wheel or disc mounted concentrically with
the axis of the flyer, and having a segmental rack, one or more winding drums

page_text: mounted in equilibrium in respect to the axis of the flyer and driven by the said
wheel or disc a shaft having a pinion engaging with the segmental rack, and means
for driving the said shaft from one of the draft drums of the machine, the said means
comprising a worm wheel on the pinion shaft, a bevel wheel on the draft drum, and a
short counter shaft having a bevel pinion engaging with the bevel wheel of the draft
drum, and a worm engaging with the worm wheel of the pinion shaft, substantially
as hereinbefore described.
DL: 09-1 day of Santamber 1890