IMPROVE- MENTS IN MACHINERY FOR SPINNING AND DOUBLING
Year: 1877

page_text: LETTERS PÅTENT to Benjamin Alfred Dobson, of the Firm of Messieurs
Dobson and Barlow, of Bolton, in the County of Lancaster, Machine Maker, and
James Macqueen, of the same Place, Machinist, for the Invention of "IMPROVE-
MENTS IN MACHINERY FOR SPINNING AND DOUBLING."
Sealed the 22nd September 1877, and dated the 24th July 1877.
PROVISIONAL SPECIFICATION left by the said Benjamin Alfred Dobson
and James Macqueen at the Office of the Commissioners of Patents on the
24th July 1877.
BENJAMIN ALFRED DOBSON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker, and JAMES MACQUEEN, of the
same Place, Machinist. " IMPROVEMENTS IN MACHINERY FOR SPINNING AND
DOUBLING."
Our Invention is applicable to throstle spinning and doubling frames and it
consists, first, in an improved mode of constructing the foot steps and bolsters for the
spindles. The lower part of the foot step is bored out to fit the lower part of the
spindle, and the upper part is large enough to clear the spindle and may be carried
to any height. Below the foot step rail is a rail with cups forming reservoirs for
the oil, which is admitted to the bottom of the spindle by a small hole in the foot
step.
The bolster is made as usual, and to the spindle is fixed a cup placed outside the
bolster, the cup reaching to near the under side of the bolster rail; the inside of the
cup is wider at the bottom than at the top. The oil is raised from the cup between
the spindle and the bolster by capillary attraction, and descends outside the bolster
through a hole in the upper surface thereof. A screw may be cut in the bolster to
act in combination with the hole above referred to. The bolster may be prolonged
above the bolster rail.
Our improvements in ring and traveller throstle spinning and doubling frames
consist in an improved combination of machinery for building or forming the cop.
On the upright shaft forming part of the ordinary frame is fixed a cam which actuates

page_text: an elbow lever, on which is a movable bracket supporting the axle of a ratchet
wheel and a worm which gears into a wheel fixed on another axle, at the bottom of
which is a chain pulley around which the lifting chain is wound; the other end of
the lifting chain is attached to a pulley fixed on the lifting shaft or on an intermediate
shaft; this pulley has a projection to reduce the motion of the copping rail when
forming the bottom of the cop. The ratchet wheel is turned round by an incline,
lever, and catch. By varying the position of the bracket on the elbow lever, we
can vary the lift of the copping rail. When the bracket and the parts connected
therewith are removed, and a stud substituted in their stead this apparatus may be
applied to any throstle spinning and doubling frame to form a parallel bobbin.
Also, in removing the fly and dirt from the travellers by means of brushes fixed
on a shaft supported from the lifting rail cross heads. At one end of the shaft is
fixed a handle taking into notches in a quadrant or other equivalent. When the
brushes require cleaning they are turned up to allow the dirt to be removed.
In ring and traveller throstle spinning and doubling frames where the upper
bearing of the spindle is within the bobbin, and where the bobbin is fixed to the
spindle, and the cop is built on a paper or other tube, we apply an apparatus fixed
to or forming part of the bobbin for catching, winding, and breaking the yarn
during the doffing, and also for holding and driving a paper or other tube.
When the apparatus is fixed to the bottom of the bobbin, it consists of a metal
tube with spring clips which hold the paper or other tube when pressed under or
over them, also of hooks to break the yarn when the cops are removed, also of
vertical corrugations or ridges to assist in removing the coils of
yarn from the
tubes.
The spring clips above referred to may be used to hold and drive any ordinary
spool or bobbin for ring and traveller frames, or a paper or other tube on an ordinary
ring and traveller spindle, and they may be used in the ordinary ring and traveller
frames in connection with the doffing apparatus above described.
We strengthen ordinary paper or other tubes by increasing the diameter at the
bottom and forming a square shoulder on which the bottom of the cop is built.
Our improvements consist also in making the rings of ring and traveller frames
in one piece, with a broad flange fitting on the lifting rail, and with holes for the
regulating screws; this broad flange is applicable to single and double rings.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Benjamin Alfred Dobson and James Macqueen in the Great Seal
Patent Office on the 24th January 1878.
BENJAMIN ALFRED DOBSON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker, and JAMES MACQUEEN, of the
same Place, Machinist. "IMPROVEMENTS IN
MACHINERY FOR SPINNING AND
DOUBLING."
Our Invention consists,-
First. In certain improved modes of constructing and lubricating the foot steps
and bolster bearings for the spindles of machines used in spiuning and doubling.
Secondly. In an improved mode of constructing the bobbin or spool on which the
yarn is wound in combination with machinery to facilitate the doffing.
Thirdly. In an improved mode of removing the fly from the travellers of ring and
traveller throstle spinning and doubling frames.
And, fourthly, in an improved construction of the rings of ring and traveller
throstle spinning and doubling frames.
And, in order that our Invention may be fully understood, and will proceed to
describe the accompanying two Sheets of Drawings.
Fig. 1 represents one mode of constructing our improved foot steps and bolster
bearings as applied to the spindle of a ring and traveller throstle spinning and
doubling frame, but we wish to remark here that our improvements may be applied
to other spinning and doubling machines. a is the spindle; b, the ring rail; c, the
bolster rail and d, the foot step rail; these parts are måde as usual. The foot
step e is fixed in the rail d, the lower end of the spindle fits in the foot step, and the
upper part of the foot step is bored out wider than the spindle. Beneath the foot
step is the cup containing oil or other lubricant which is conveyed to the end of the
spindle by a small hole in the foot step. Any convenient number of these cups are
cast to a rail attached to the foot step rail d by regulating screws or otherwise.
The cups can be lowered or removed when necessary. The bolster consists of the
cast-iron bush g and brass bush h, and to the spindle is fixed the cup i which reaches
to near the under side of the bolster rail c. The oil is raised from the cup between
the spindle and the bolster either by capillary attraction or by a spiral groove, and
descends outside the bolster through a hole in the upper surface thereof. The
bolster is prolonged above the bolster rail. The bobbin or spool j is driven by the
doffing braid k in the ordinary manner.
Fig. 2 represents a spindle supported in our improved foot step and bolster bearing
above described, shewing a spool fixed to the spindle to which our improvements
are applied. The spool jis made of sheet metal soldered to the top bearing and
fitting on the bearing 2 fixed to the spindle. Near the bottom of the spool (sec
also Fig. 4) are the spring clips j³ for holding and driving a paper or other tube or
bobbin on which the yarn is wound; the paper or other tube or bobbin may be
constructed in any convenient manner, and the spring clips may be made to act on
the outside of the paper or other tube or bobbin. Below the spring clips are the
hooks for catching and breaking the yarn while doffing. The spring clips and
hooks are shewn applied to a metal spool, but they may be applied to other
bobbins or spools in any convenient manner. The bottom of the spool j may be
corrugated to assist in removing the yarn that accumulates in doffing.
Fig. 3 represents a section of a spindle supported by a tube fixed in the bolster
rail, and passing inside the bobbin or spool, to which our improvements are
applied.
Fig. 5 represents an ordinary mule spindle, supported in our improved lubricating
foot step and bolster bearing.
In Figs. 6 and 7 we have shewn our improved apparatus for removing the fly and
dirt from the travellers. 24 are brushes fixed on a shaft 25, which is supported

page_text: from the ring rail b. At one end of the shaft is fixed a handle 26 by which the
brushes are turned up to allow the dirt to be removed when required. It is obvious
that a double brush may be used to act on two travellers, as shewn in dotted lines
in Fig. 7.
Figs. 8, 9, and 10 represent our improved rings for ring and traveller throstle
frames. This improvement consists in making the rings with a flange fitting on the
lifting rail and with holes for the regulating screws; this flange is applicable to
single rings, as shewn in Fig. 8, and to double rings, as shewn in Fig. 9.
2
On Sheet 2, Fig. 11, is a front elevation of part of an ordinary ring and traveller
spinning and doubling frame, to which our improvements are applied. Fig. 12 is
an end view of the same, and Figs. 13 to 17 are detached views of parts of our
improvements. a are the spindles; b, the ring and traveller rails; c, the bolster
rails; and d, the foot step rails; x, x, are the tin drum shafts; y, y, the lifting shafts,
and the upright shaft, all of which are made as usual. On the upright shaft is
fixed the cam which actuates the elbow lever s, see Fig. 13, on which is a
movable bracket s' supporting the axle st of the ratchet wheels and the worms",
which gears into the wheel t fixed on the axle 1, at the bottom of which is fixed a
chain pulley t around which the lifting chain is wound; the other end of the lifting
chain is attached to the pulley r fixed on the intermediate shaft r; this pulley has
a projection ² to reduce the motion of the copping rail when forming the bottom of
the cop. The lifting shaft y is connected to the intermediate shaft by the chain
y. The ratchet wheel 82 is turned round by an incline u (see Figs. 14 and 15),
lever u³ and catch u². By varying the position of the bracket s¹ on the elbow lever
8, we can vary the lift of the copping rail b.
At the lower end of the upright shaft 1, forming part of the copping motion, is
the cam 2, shewn detached in Fig. 16; this cam acts on the lever 3, which is carried
on a swivel stud 4. On the horizontal shaft 5 is fixed a lever 6 which carries the
weight 7, the strap fork and finger 9. To the frame end is bolted the bracket 10
which carries a break 11 acting on the pulley 12 fixed on the tin roller shaft . On
the shaft a is a loose friction disc 13 (see Figs. 12 and 17), in the boss of which is a
groove for the forked lever 14, which vibrates on the stud 15 fixed to the bracket
16 bolted to the frame end. On the front of the spindle foot step rail d is the elbow
lever 17 mounted on the stud 18, the vertical arm of which has a slot fitting on the
end of the lever 14, and the horizontal arm of which is carried by an elbow lever 19.
On the disc 13 is a grooved pulley 20, and on the bracket 16 are carried two guide
pulleys 21 and 22, around which a band is taken to the pulley 23 on the worm
shaft of the copping motion.
The mode of operation is as follows:-The upright shaft z in revolving gives a
vibrating motion to the lever 8 by the cam 2' acting on the bowl 2; the chain from
the pulley t gives the requisite motion to the copping rail for forming the
chase of the cop; the body of the cop is formed by the incline u, lever u¹, catch u²,
and ratchet wheel 82, as described. When the cops or bobbins are full and ready
to be doffed, the attendant throws back the catch u², and by turning the handle
placed on the square end of the axle 8, runs down the copping rail to bring the
yarns on the doffing braids; when sufficient yarn has been wound on the braids,
the attendant stops the machine. Or the copping rail may be run down, the builder
run back, and the machine stopped by raising the elbow lever 19 to release the
horizontal arm of the elbow lever 17; the vertical arm thereof acting on the lever 14
then brings the friction disc 13 in contact with the end of the tin drum, the band
from the pulley 20 then gives motion to the pulley 23 to turn the shaft of the
ratchet wheel 2 in the reverse direction to that in which it had been driven by the
catch u; thereby bringing the ring rail b low enough to allow the yarn to be wound
on the doffing braids. When enough yarn has been wound on the braids the cam 2
moves the lever 3 horizontally, and then vertically; the end of the lever 3 then acts
on the screw in the lever 6, thereby shifting the driving strap from the fast to the
loose pulley and allowing the break 11 to come in contact with the break pulley 12;

page_text: to arrest the momentum of the parts quickly the lever 3 is moved back horizontally
by the spring V (see Fig. 13) and vertically by the cam 2.
When the bracket s' and the parts connected therewith are removed, and a stud
substituted in their stead, this apparatus may be applied to any throstle spinning
and doubling frame to form a parallel bobbin.
Having thus stated the nature of our Invention, we declare that we claim,―
First. The improved lubricating bolsters and foot steps, as shewn and described,
in reference to Figs. 1, 2, and 5.
Secondly. The spring clips and hooks forming part of or attached to sheet metal
or other spools and bobbins, as shewn and described in reference to Figs. 2, 3,
and 4.
Thirdly. The arrangement of parts, shewn and described, in reference to Figs. 11
to 17, for reversing the copping motion, lowering the ring rail for winding the yarn
on the braids, shifting the driving strap on to the loose pulley and applying the
break.
Fourthly. The application of brushes for removing the fly from the travellers, as
shewn and described in reference to Figs. 6 and 7.
And, lastly. The improved construction of rings for ring and traveller throstle
spinning and doubling frames, as shewn and described in reference to Figs. 8, 9, and 10.
In witness whereof, we, the said Benjamin Alfred Dobson and James Macqueen,
have hereunto set our hands and seals, this Twenty-second day of January,
One thousand eight hundred and seventy-eight.
BEN. ALF. DOBSON. (L.S.)
JAMES MACQUEEN. (L.S.)