Improvements in Change or Builder Motions for Slubbing, Roving and other Frames for Preparing Cotton, Flax, and other Fibrous Materials for Spinning.
Year: 1897

page_text: Date of Application, Tɔth Mar., 1897
Complete Specification Left, 15th Dec., 1897-Accepted, 29th Jan., 1898
Date of Application, Tɔth Mar., 1897
Complete Specification Left, 15th Dec., 1897-Accepted, 29th Jan.,
1898
PROVISIONAL SPECIFICATION.
Improvements in Change or Builder Motions for Slubbing, Roving
and other Frames for Preparing Cotton, Flax, and other Fibrous
Materials for Spinning.
We, SAMUEL HERBERT BROOKS and FREDERICK GEORGE GOODBEHERE, of the
firm of Brooks and Doxey, of the Union Iron Works, West Gorton, Manchester,
in the County of Lancaster, Machine Makers, and GEORGE SHAW, of Albert Grove,
Longsight, Manchester, aforesaid, Draughtsman, do hereby declare the nature of
this invention to be as follows:-
This invention relates to an improved construction of the mechanism whereby
the change of traverse is effected at the top and bottom of the lift of the bobbin
rail and is designed to provide for the alteration or adjustment of the taper of the
bobbin or in other words of the length of the traverse relative to the preceding one
at each succeeding lift of the rail without the necessity of changing or removing
any of the wheels.
The change of the direction of motion is effected by means of "strike wheels"
comprising two sliding bevels which are alternately thrown into and out of gear
with a rotating bevel in the usual manner by means of a rod connected with the
change or builder motion.
The oscillating lever by which the strike rod and bevel wheels are operated is
pivoted at or near its centre in an approximately upright or vertical position being
connected at the bottom with the strike rod and provided at its top or upper end
with indentations, ratchet teeth or their equivalents forming two stops one at
either side with which pivoted catches or levers alternately engage to hold it first
in one position and then in the reverse.
At either side of this upright oscillating lever are pivoted to a fixed bracket
catches of bell crank or other convenient shape which alternately engage with the
upper end of the upright oscillating lever to hold it in position during each traverse
of the bobbin rail.
At the upper ends of the bell crank catches are pivoted side levers the position of
which may be adjusted by means of movable studs screwed or bolted to a fixed
bracket or by means of setting screws. The upper ends of these side levers are
connected together by or attached to a spring or springs by which they are drawn
inwards and the lever ends held against the adjusting studs. The spring or
springs also serves to hold the bell crank catches against the indentations in the
oscillating lever.
On a pin or pivot placed above the upright oscillating lever or in other con-
venient position is pivoted or suspended a toothed quadrant capable of being
oscillated or reciprocating from side to side thereon by a pinion operated from or
driven by a spur wheel rotating alternately in one direction and then in the other
according to the direction of the traverse of the bobbin rail. On the radial arm or
shank of this quadrant is fitted a sliding piece or nut through which an operating
screw passes and at the sides of the nut are fitted two setscrews or other adjustable

page_text: projections to come into contact as the quadrant swings from side to side with
the side levers pivoted to the catches which hold the upright oscillating lever and
release it. The operating screw is rotated by bevel wheels or otherwise part of a
revolution at each change of the traverse by means of a rack on the strap fork bar
gearing with a suitable pinion.
A second pair of upright side levers are pivoted preferably upon adjustable centres
below that of the first oscillating upright lever. The lower ends of these levers are
connected to a weight or spring, the weight or spring having sufficient weight or
force to move the strike rod when the upright oscillating lever is released. Each
side lever carries a stud near its lower end traversing a slot in a link which is
pivoted to the lower end of the upright oscillating lever. These levers are so
placed that the ends of the quadrant engage with them alternately at the end of
each stroke moving the lower end in the slotted link to permit of the whole force
of the weight or spring acting upon the other one to move the strike rod each time
the upright oscillating lever is released by the swing of the quadrant to one side or
the other.
The length of traverse of the bobbin rail at each lift and consequently the
length of taper of the bobbin is regulated by means of the first mentioned pair of
side levers by bringing the adjusting studs nearer together the length of traverse
is shortened and the taper lengthened and vice versa by moving the studs outwards
or away from each other the length of traverse is lengthened and the taper conse-
quently reduced. Thus the taper of the bobbin is adjusted by simply moving a
stud and either top or bottom taper of bobbin may be adjusted separately or inde-
pendently. Further a convex or concave taper may be given to the bobbin if
desired by shaping the side levers either to a concave or convex to correspond.
The present change motion may be constructed to obtain the same results by
making the diminishing slide with pivoted or adjustable bars either straight or
shaped as desired.
The ratchet wheel and catches regulating the movement of the strap fork bar
are preferably placed to one side of the change motion the catches being alter-
nately moved to release the ratchet wheel by studs placed on the strike rod which
come in contact with them. The ratchet wheel carries a pinion which by means
of a suitable train gears with a rack on the strap fork bar. A second rack on this
bar moves the adjusting screw for the change motion. The speed of travel of the
cone strap is changed without altering the ratchet wheel or catches by changing
the spur wheel on the ratchet wheel stud or other change wheel in the train of
wheels.
A further advantage gained by this invention is that all weight of changing is
taken off the lifting rail.
A hand wheel and suitable gearing is applied to move the strap fork rack back
to the starting point when commencing a fresh set.
The strap fork rack is forced up the cones during the building of a bobbin by
means of a weight in the usual way and in a manner well understood.
Dated this 13th day of March 1807
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Change or Builder Motions for Slubbing, Roving
and other Frames for Preparing Cotton, Flax, and other Fibrous
Materials for Spinning.
We, SAMUEL HERBERT BROOKS and FREDERICK GEORGE GOODBEHERE, of the
firm of Brooks and Doxey, of the Union Iron Works, West Gorton, Manchester,
.
Improvements in Change or Builder Motions for Slubbing, Roving
and other Frames for Preparing Cotton, Flax, and other Fibrous
Materials for Spinning.
We, SAMUEL HERBERT BROOKS and FREDERICK GEORGE GOODBEHERE, of the
firm of Brooks and Doxey, of the Union Iron Works, West Gorton, Manchester,

page_text: in the County of Lancaster, Machine Makers, and GEORGE SHAW, of Albert Grove,
Longsight, Manchester, aforesaid, Draughtsman, 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:-
This invention relates to an improved construction of the mechanism whereby
the change of traverse is effected at the top and bottom of the lift of the bobbin
rail and is designed to provide for the alteration or adjustment of the taper of the
bobbin or in other words of the length of the traverse relative to the preceding one
at each succeeding lift of the rail without the necessity of changing or removing
any of the wheels.
It will be fully described with reference to the accompanying drawings.
Fig. 1. Elevation from back of the frame.
Fig. 2. End elevation.
Fig. 3. Improved diminishing slide applicable to existing change motion.
Fig. 4. Elevation of bobbin showing alterations of taper by dotted lines.
The change of direction of motion in the traverse rail is effected by means of
the ordinary "strike wheels" comprising two sliding bevels which are alternately
thrown into and out of gear with a rotating bevel (not shown in the drawing) in
the usual manner by means of a rod A connected with the change or builder
motion.
We operate the strike rod A-which moves the two bevel wheels to and fro-
by an oscillating lever B pivoted at or near its centre on a pin C in an approxi-
mately upright or vertical position. The lever B is connected or attached to the
strike rod A at its lower end and at its top or upper end is provided with notches
or indentations b forming two stops one at either side with which pivoted catches
or levers D alternately engage to hold it first in one position and then in the
reverse.
The catches or levers D are of bell-crank or convenient shape and are pivoted at
either side of the upright oscillating lever B to a fixed bracket D¹ the lower ends d
engaging alternately with the notches on the top of the lever B as it is moved
from one side to the other, to hold it in position during each traverse of the bobbin
rail and until it is released at the end of the traverse.
To the upper end d¹ of each of the bell crank catches D is pivoted a side or
tapering lever E the position of which may be adjusted by means of a movable
stud e screwed or bolted in a slot in the fixed bracket D¹ (or by means of a setscrew)
which acts as a fulcrum for the lever. The upper ends of the two side levers E
are connected by or attached to a spring or springs F by which they are drawn
inwards while the lever ends are held against the adjusting studs e.
The spring
or springs also serves to hold the ends d of the bell crank catches D against the
notches or indentations 6 in the oscillating lever B.
On a fixed stud or pivot G placed above the upright oscillating lever B or in
other convenient position is pivoted or suspended a toothed quadrant H capable of
being oscillated or reciprocated from side to side thereon by a pinion operated
from or driven by a bevel wheel 9 rotating alternately in one direction and then
in the reverse direction according to the direction of the traverse of the bobbin rail.
On the radial arm or shank of the quadrant H is fitted a sliding bracket or nut K
through which an operating screw L passes and in the sides of the nut K are fitted
two setscrews k or other adjustable projections which come into contact as the
quadrant H swings from side to side with the side or tapering levers E first with
one and then with the other and alternately push back the levers and release the
catches d from engagement with the notch 6 on the oscillating lever B thus
releasing the lever and allowing it to swing back to the opposite side.
The screw L is rotated a part of a revolution at each change of the traverse by
bevel wheels 1 (or other wheels) operated by a rack m on the upper edge of the
strap fork bar M which engages with a pinion m¹ connected with the bevel wheel l'.

page_text: At each movement of the screw L the sliding bracket or nut K is moved down-
wards to shorten the lift or traverse.
Instead of the reciprocating quadrant H a reciprocating rack or bar or equivalent
device may be employed for releasing the catches such rack bar or device being
adjusted at each lift by a screw or other suitable mechanism.
A second pair of upright side levers N are pivoted upon adjustable centres below
that of the oscillating lever B. The lower ends of the levers N are connected to a
weight (or to a spring) which has sufficient weight or force to move the strike rod A
when the oscillating lever B is released by the catches d. Each lever N carries a
stud n near its lower end traversing a slot p in a link P which is pivoted to the
lower end of the upright oscillating lever B. The levers N are so placed that the
ends of the quadrant H engage with them alternately moving the stud n on the
lower end in the slotted link P to permit of the whole force of the weight W (or
spring) acting upon the other one to move the strike rod A each time the upright
oscillating lever B is released by the swing of the quadrant to one side or the other.
The length of traverse of the bobbin rail at each lift and consequently the length
of taper of the bobbin is regulated by means of the tapering levers E. By bring-
ing the adjusting studs e nearer together the length of traverse is shortened and
the taper lengthened and vice versa by moving the studs e outwards or away from
each other the length of traverse is lengthened and the taper consequently reduced.
Thus the taper of the bobbin is adjusted by simply moving a stud and either top
or bottom taper of bobbin may be adjusted separately or independently. Further
a convex or concave taper may be given to the bobbin if desired by shaping the
sides of the levers E to correspond.
The present change motion may be constructed to obtain the same results by
making the diminishing slide with pivoted or adjustable bars T either straight or
shaped as desired see Fig. 3.
The ratchet wheel R and catches S which control the movement of the strap
fork bar M are preferably placed to one side of the change motion the catches S
being alternately moved to release the ratchet wheel by studs or collars s placed on
the strike rod A which come in contact with them. The ratchet wheel R carries
a change pinion r which by means of a suitable train gears with a rack m¹ on the
strap fork bar.
The speed of travel of the cone strap is changed without altering the ratchet
wheel R or catches S by changing the spur wheel r on the ratchet wheel stud or
other change wheel in the train of wheels.
A further advantage gained by this invention is that all weight of changing is
taken off the lifting rail.
A hand wheel U and suitable gearing u is applied to move the strap fork rack M
back to the starting point when commencing a fresh set.
The strap fork rack M is forced up the cones during the building of a bobbin by
means of a weight attached to a chain or rope M' in the usual way and in a manner
well understood.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is: :-
1. A change or builder motion for slubbing roving or other frames constructed
with two independent adjustable "tapering" levers working in conjunction with
reciprocating quadrant rack bar or equivalent device one lever controlling the top
taper of the bobbin and the other lever controlling the bottom taper substantially
as described.
2. In change or builder motions for slubbing roving or other frames the use
of an oscillating quadrant with sliding block operated by a rotating screw for
releasing the catches which hold the oscillating strike lever substantially as
described.
3. Change or builder motions for slubbing roving or other frames constructed

page_text: with an upright oscillating lever provided with indents or notches at its upper
end for operating the strike rod, adjustable catches at either side which engage
with the notches and hold the oscillating lever in position until the catch is
released, adjustable "tapering" levers pivoted to the catches an oscillating
quadrant which is moved backwards and forwards by a rotating pinion, and a
sliding block or nut on the radial arm of the quadrant which is moved along the
arm at each lift by a screw and which releases the catches by which the oscillating
strike lever is held substantially as described.
4. In change or builder motions for slubbing roving or other frames con-
structing the diminishing slide with pivoted or adjustable tapering bars T either
straight or shaped to lengthen or shorten the traverse and the taper of the bobbin
as required substantially as described and shown with reference to Fig. 3.
5. Change or builder motions for slubbing roving or other frames constructed
substantially as described and shown.
Dated this 14th day of December 1897
WM. P. THOMPSON & Co.,
Manchester, Liverpool and London, Patent Agents.