Improvements in Yarn-winding and like Machines.
Year: 1899

page_text: Date of Application, 11th Sept., 1899
Complete Specification Left, 11th June, 1900-Accepted, 4th Aug., 1900
PROVISIONAL SPECIFICATION.
Improvements in Yarn-winding and like Machines.
We, VICTOR WHITEHALL and GEORGE CROFT CREWE, both of the Firm of
Whitehall & Crewe, of Thoroton Street, in the City of Nottingham, Machinists,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in what are known as
like machines, in which each bobbin or spool which is being filled, is rotated by
slip-winding or
frictional contact between the periphery of a constantly revolving drum, and the
surface of the yarn on the bobbin, and it has for its object to provide automatic
stop mechanism for throwing each bobbin out of action when the requisite amount
of yarn is wound upon it, and thus prevent over-winding and the consequent
waste.
According to our invention each bobbin is mounted upon a spindle, the ends
of which are carried in the outer ends of two arms connected to a pivotted framing.
This framing is provided with a weighted arm which normally holds the surface
of the bobbin, or yarn thereon, in contact with the periphery of the driving drum.
The outer end of one arm of the pivotted framing is provided with an extension
which engages with an incline on a flat vertical spring secured to a fixed part
of the framing of the machine. This incline is preferably so arranged as to assist
the weight in holding the bobbin on the drum, and the said weight may thus
be less than that usually required.
As the bobbin fills, the outer ends of the arms on the pivotted framing are
raised, and the extension before-mentioned travels up the incline on the spring
until it reaches the top. When it reaches this point a second incline at the
top of the first but approximately at right angles to it, comes into contact with
the extension and the action of the spring then raises the arms until the bobbin
is clear of the driving drum, and thus out of action.
The spring is preferably adjustable so that it may be raised or lowered in
order to adapt it for bobbins of different diameters, or according to the amount
of yarn required on the bobbin.
Instead of a spring we may use a pivotted arm provided with inclines which
arm may be actuated either by a spring, or weight, as preferred.
Dated this 11th day of September 1899
BOULT, WADE & KILBURN,
Agents for the Applicants.
Improvements in Yarn-winding and like Machines.
We, VICTOR WHITEHALL and GEORGE CROFT CREWE, both of the Firm of
Whitehall & Crewe, of Thoroton Street, in the City of Nottingham, Machinists,
do hereby declare the nature of this invention and in what manner the same is
[Price 8d.]

page_text: to be performed to be particularly described and ascertained in and by the
following statement:―
This invention relates to improvements in what are known as slip-winding or
like yarn winding machines, in which each bobbin or spool which is being filled,
is rotated by frictional contact between the periphery of a constantly revolving
drum, and the surface of the yarn on the bobbin, and it has for its main object,
to provide automatic stop mechanism for throwing each bobbin out of action
when the requisite amount of yarn is wound upon it, and thus prevent overwinding
and the consequent waste.
The invention will be best understood by reference to the accompanying draw-
ings, in which,
Fig. 1 is a vertical cross section, and
-
Fig. 2 a front elevation showing our invention applied to a slip-winding
machine, part only of latter being shown.
Like letters indicate like parts throughout the drawings.
In machines of this description, each bobbin A is mounted loosely upon a pin
or spindle B, which is secured to the outer end C¹ of a frame or lever C, and
the latter is pivotted at C2 to a bracket 1) secured to the framing. The lever is
also formed with a weighted end which normally holds the surface of the
bobbin A, or the yarn thereon, in contact with the periphery of the driving
drum E.
According to our invention the end C¹ of each lever C is formed as shown in
Fig. 1, and bearing on this end is the face F of a flat spring F, which is secured
to a fixed bar G extending along the machine.
The face on the spring F may be arranged as shown to exhert a downward
pressure on the end C of the lever C, and thus press the latter towards the drum E
and assist the weighted end C³ of the lever in holding the bobbin on the driving
drum E.
The said weighted end may then be less than is usually required.
As each bobbin A fills, the outer end C¹ of the corresponding lever is raised
by the accumulation of yarn on the bobbin, and it therefore travels up the face
Fon the spring F. When it reaches the end of this face F", an incline Fat
a suitable angle to the face F is moved by the action of the spring Funder the
end of the lever and raises the latter. The bobbin A is thus raised clear of
the drum E and immediately stops.
The face F1 of the spring may, if preferred, be so arranged that it does not
exert any downward pressure on the end C¹ of the lever C, but merely bears
against the end of the lever, and is thus held in its outer position until the
incline F is reached, and it is released.
The height of each spring F is preferably adjustable so that it may be raised
or lowered in order to adapt it to bobbins of different diameters, or according
to the amount of yarn required on the bobbin. For this purpose the spring F
is slotted at the point F where it is bolted to the bar G.
It is obvious that instead of springs, we may use a pivotted arm in connection
with each lever C provided with a face F and incline F2, and actuate said arms
by springs or weights as preferred.
By employing the arrangement described, we can arrange a second duplicate
set of bobbin levers H on the underside of the driving drums E, and wind the
hobbins thereon simultaneously with those described, as by the use of the auto-
matic stop mechanism, it is not necessary that they should be placed in a position
where the attendant can see them.
The bobbin levers H are pivotted at H to brackets H³ secured to the bar I
and the end of each of these levers engages with springs J, which latter are of
similar construction to and operate the levers H in the same manner as the
springs operate the lever C. The springs J are secured to the bar I herein-
before referred to.

page_text: By arranging one set of bobbin levers above and one below the driving drums E,
double the number of bobbins may be filled without increasing the size of the
machine.
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. In a slip-winding or like machine the combination with a bobbin lever such
as C of a spring such as F or its equivalent provided with a face F¹ to bear on the
end of said lever and an incline F to raise it substantially as described.
2. In a slip-winding or like machine the combination with a driving drum
such as of bobbin carrying levers such as C and H arranged one above and
one below the said drum and stop mechanism such as that provided by the
springs F, or J, substantially as described.
3. The combination and arrangement of parts constituting the complete stop
mechanism for slip-winding or like machines substantially as described and
illustrated in the accompanying drawings.
4. The combination and arrangement of parts
winding machine substantially as described and
drawings.
Dated this 9th day of Tune 1000
constituting the complete slip-
illustrated in the accompanying
VICTOR WHITEHALL.
GEO. C. CREWE.
Boult, Wade & Kilburn,
Agents for the Applicants.