IMPROVEMENTS IN MACHINES FOR SPINNING AND DOUBLING
Year: 1877

page_text: LETTERS PATENT to John Elce, of the City of Manchester, Machine Maker,
for the Invention of "IMPROVEMENTS IN MACHINES FOR SPINNING AND
DOUBLING."
Sealed the 24th April 1877, and dated the 22nd February 1877.
PROVISIONAL SPECIFICATION left by the said John Elce at the Office of
the Commissioners of Patents on the 22nd February 1877.
JOHN ELCE, of the City of Manchester, Machine Maker. "IMPROVEMENTS IN
MACHINES FOR SPINNING AND DOUBLING."
My Invention is applicable to those ring and traveller throstle spinning and
doubling frames in which the spindle is supported by a tube fixed in the bolster
rail, and passing inside the bobbin or spool.
The object of my Invention is to facilitate the doffing of the full bobbins.
In performing my Invention I place a loose bush upon the tube fixed to the
bolster rail, and this bush is provided with snugs or wings on which the notches
in the lower end of the bobbin or spool act to carry the bush round with the bobbin
or spool, or the bush may be connected in any other way to the bobbin or spool.
When the bobbins or spools have been filled the ring rail is lowered to bring the
ends of yarn or thread opposite the bush above described; a few coils of yarn or
thread are then wound on the bush, after which the full bobbins or spools are
doffed, and empty ones put in their places; the ring rail is then lifted to bring the
yarns or threads on to the bobbins or spools, on to which they are wound, as usual;
by this means the yarn or thread is never disconnected from the travellers or the
rollers while doffing.
Another part of my Invention consists in supporting the bobbin or spool on a
bush which fits on a stationary spindle, and on which is a wharve driven by a band
from the usual tin drum. When the bobbins are full the rail with the rings and
travellers is lowered to cause the yarns to be wound on the bush of the wharve, and
when the doffing is completed, and fresh bobbins or spools are put on the spindles,
the ring rail is again raised, as above described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Elce in the Great Seal Patent Office on the 22nd August
1877.
JOHN ELCE, of the City of Manchester, Machine Maker.
MACHINES FOR SPINNING AND DOUBLING."
"IMPROVEMENTS IN
My Invention is applicable to those ring and traveller throstle spinning and
doubling frames in which the spindle is supported by a tube fixed in the bolster
rail, and passing inside the bobbin or spool, and it consists in certain improved
arrangements of machinery for facilitating the doffing of the full bobbins:
Another part of my Invention consists in the application of the machinery above
referred to for doffing, to machines in which the bobbin or spool is supported on a
bush which fits on a stationary spindle, and on which is a wharve driven by a band
from the usual tin drum.
And in order that my Invention may be fully understood and readily carried
into operation, I will proceed to describe the two accompanying Sheets of
Drawings, reference being had to the figures and letters marked thereon.
On Sheet 1, Fig. 1 is an elevation of part of an ordinary ring and traveller
throstle spinning or doubling frame to which my improvements are applied; and
Fig. 2 is a detached view of part of the same.
Fig. 3 is a modification of my Invention.
On Sheet 2, Fig. 4 is a plan of Fig. 1.
Fig. 5 is a modification of my Invention; and Fig. 6 is a stationary spindle to
which my improvements are applied.
In Figs. 1 and 2, a are the thread boards hinged as usual to a rail fixed to the
roller beam b; c is the ring rail; d, the bolster rail; e the footstep rail for the
spindle f, which revolves in the tube d', fixed to the bolster rail d, and in the foot-
step e' in the rail e; and g the spool on which the yarn is wound; all these parts
are made in any approved manner. Upon the tube is placed the loose bush or
doffing braid h, which is provided with snugs or wings, on which the notches in the
lower end of the spool g act to carry the bush round with the spool; or the bush h
may be connected in any other way with the bobbins or spools and spindles so that
they run together; or the bobbin or spool g may be connected to the spindle fas
shewn in Fig. 3. In this arrangement the braid h is provided with a tube and bush
fixed to the spindle, and the bobbin or spool fits upon the said tube and bush, the
whole revolving together, as in Fig 2. When the bobbins or spools have been
filled the ring. rail c is lowered to bring the ends of yarn or thread opposite the
doffing braids or bushes by the following mechanisin -The hand wheel i is
mounted on a short shaft in the elbow lever j, and on this short shaft is fixed the
pulley to which one end of the lifting chain 2 or other contrivance is fixed, the
other end being connected to the ordinary lifting pulley of the copping motion;
the poker bar c¹ is connected by a regulating screw to the horizontal arm of the
elbow lever j. In the rim of the hand wheel i is a notch for the weighted catch k,
which vibrates on the same fulcrum as the elbow lever j; and this lever is provided
with a projection 1, which lifts the lever 1, mounted on the fulcrum ; the outer
end of the lever 7 comes against a pin projecting from the lever m, which is fixed on
the shaft m, to which is also fixed the lever m², connected by the link m³ to the
lever of the friction plate m³, this friction plate fits in the friction box n in the
driving pulley n¹. As soon as the attendant has released the catch / the elbow
lever falls forward, and the hand wheel i is turned partly round in the direction
of the arrow to unwind the lifting chain off the pulley i¹, the ring rail c is thus
lowered into the position shewn in Fig. 2, and a few coils of yarn are wound on
the braids or loose bushes h. The falling forward of the lever j causes the
projection to lift one end of the lever 1, and lowers the other end to release the
lever m, which is then instantly acted upon by the spring or weight m³ to shift
the driving strap from the fast pulley n¹ to the loose pulley n², and to apply

page_text: the friction plate m¹ to the friction box or cone n to check the momentum of the
parts, and to regulate the number of turns to be wound on the loose bush or braid h.
The full bobbins or spools are now ready to be doffed, and in doffing the yarn is
broken against the wings of the braid h, which is prevented from being lifted by
the thread or bobbin by a pin fixed in the tube d, the empty spools or bobbins are
now put in their places, and the ring rail c is then lifted to bring the yarns or
threads on to the bobbins or spools, on to which they are wound as usual; by this
means the yarn or thread is never disconnected from the travellers or the rollers
while doffing.
On Sheet 2 Fig. 4 represents a modification of my Invention; in this arrange-
ment the parts marked m, n, n¹, and n² are similar to those above referred to.
The spur pinion n³ fixed to the loose pulley n² gears into a carrier which drives the
wheel o¹ on the shaft o, to which is fixed the pinion o², gearing into the wheel mo
cast or fixed to the friction cone mt; to the wheel me is fixed the box m³, which is
made in two parts to fit on the sliding clutch box p; this clutch box is actuated by
the lever p², and it takes into clutches on the pinion p¹ which transmits motion to
the drawing rollers in the ordinary manner. When the spools or bobbins are
full the drawing rollers are stopped by moving the clutch box p to disconnect it
from the pinion p¹; this same motion traverses the driving strap from the fast to
the loose pulley, which stops the frame in the ordinary way, and then presses thre
friction cone m' into the friction box n; the pinion n³ now becomes the driver, and
transmits motion to the fast pulley n¹, but in the contrary direction to that in
which it usually revolves when spinning; this reverse motion uncoils a few coils of
yarn off the spools or bobbins during the descent of the ring rail, and winds them
on the loose bushes or braids h the reverse way, so that after doffing as before
the ring rail is lifted, and the strap shifted to the fast pulley, thereby turning
the spindles or spools in the right direction for spinning, and for unwinding the
thread from the braids or bushes, which thread is then wound on to the bobbins or
spools.
Fig. 6 represents a stationary spindle to which my improved doffing machinery is
applied; in this case s is the spindle which is fixed in the footstep rail e, the bush 8¹
fits on the spindle s, and the bobbin or spool g fits on the bush 8¹. The lower end
of the bobbin or spool is provided with notches, which enter between the snugs or
wings on the upper end of the boss of the wharve t, which is driven by a band
from the usual tin drum; by this means the bobbin or spool is carried round with
the wharve. The upper end of the boss of the wharvet answers the same purpose
as the loose bush or braid h in Figs. 1 and 2. When the bobbins are full the rail c
with the rings and travellers is lowered to cause the yarns to be wound on the
bush of the wharve t, and when the doffing is completed, and fresh bobbins or
spools are put on the spindles, the ring rail is again raised as above described.
Having thus stated the nature of my Invention and described the manner of
performing the same, I declare that I claim,-
First. The loose bush or braid h or its equivalent, which is carried round with
the bobbin, or spool, or spindle, as shewn and described.
Secondly. The improved machinery described, or any equivalent machinery for
checking, stopping, and reversing the direction of motion of the spindles and
bobbins.
In witness whereof, I, the said John Elce, have hereto set my hand and seal,
this Twentieth day of August, One thousand eight hundred and seventy-
JOHN ELCE. (L.S.)