Improvements in and in the Manufacture of Bobbins and Tubes used in Textile Machinery.
Year: 1891

page_text: Date of Application, 31st Oct., 1891
Complete Specification Left, 23rd July, 1892-Accepted, 3rd Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in and in the Manufacture of Bobbins and Tubes used
in Textile Machinery.
I HERBERT WILLIAM WILSON of Wilson Brothers Limited, of Cornholme,
Todmorden, in the County of Lancaster, Bobbin Manufacturer, do hereby declare
the nature of this invention to be as follows:-
My invention relates to the bobbins and tubes used to carry rovings and yarn as
is well understood and consists of improvements in an invention for which Letters
Patent Number 1772 of the year 1881 were granted to Joshua Henry Wilson and
Lawrence Wilson. In this earlier invention bobbins and tubes were strengthened
by means of rings or hoops made of thin sheet metal stamped pressed or spun into
form. A hoop which has been largely used by my firm since the date of the said
Letters Patent is in the form of a cylindrical shell flanged inward at one end and
having the margin of the flange turned inward so as to extend inside the shell
being concentric with the same. When this hoop is applied the inward projection
enters the bore of the tube or bobbin or a groove cut therein. In practice these
hoops answer their intended purpose very well but it has been considered advisable.
to render their attachment more secure especially in some of their applications
and this is the principal object of my invention. In the cases of plain cylindrical
tubes not having shoulders to aid in securing the hoop it has not been possible to
obtain as firm a hold upon the tube as is desirable. To obviate this defect I turn
inward the edge of the hoop at the opposite end to the one which is flanged as
aforesaid. This turned-in edge forms an additional flange. Without some other
change in the formation of the hoop this additional flange would prevent the hoop
from being forced upon the tube. To get over this difficulty I make the hoop of a
conoidal form instead of a cylindrical form as aforesaid the amount of taper being
sufficient to enable the inner edge of the flange to pass on to the tube. When the
hoop is being applied it is condensed or contracted by spinning or by the pressure
of dies or by suitable means so as to reduce the hoop to the cylindrical form the
additional flange being forced into the wood or material of the tube or into a
grooved cut therein. When so applied the hoops cannot come off in use.
Additional advantages arise from the fact that the cut edge of the metal is turned
inward and that the additional flange increases the strength of the hoop. In the
cases of hoops for shouldered tubes I force the additional flange over the shoulder
and into the material or into a groove and in some or in all cases I propose to make
such flange of a form which will admit of its being turned inward toward the tube
in an inclined or curved direction toward the other end of the hoop so as to form a
rounded or
"beaded" shoulder. I intend to carry out the same principle in the
application of the protecting hoops rings or caps-which may not in all cases be
cylindrical-to other forms of tubes pirns or bobbins making them too large in the
first instance and contracting them in the application so as to force the additional
flange or edge into the material or into a receiving groove.
In the cases of lining ferules I may employ the converse method by making the
ferules too small and by expanding them in the application so as to force a projecting
edge into the material.
Dated this 30th day of October 1901
DUTTON & FULTON,
1, St. James Square, Manchester, Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in and in the Manufacture of Bobbins and Tubes used
in Textile Machinery.
I, HERBERT WILLIAM WILSON of Wilson Brothers Limited, of Cornholme,
Todmorden, in the County of Lancaster, Bobbin Manufacturer, 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 and
accompanying drawings :-
My invention relates to the bobbins and tubes used to carry rovings and yarn as
is well understood and consists of improvements in an invention for which Letters
Patent Number 1772 of the year 1881 were granted to Joshua Henry Wilson and
Lawrence Wilson."
In this earlier invention bobbins and tubes were strengthened by means of rings
or hoops made of thin sheet metal stamped pressed or spun into form. A hoop
which has been largely used by my firm since the date of the said Letters Patent
is in the form of a cylindrical shell flanged inward at one end and having the
margin of the flange turned inward so as to extend inside the shell or into a
groove concentric with the same.
When this hoop is applied the inward projection enters the bore of the tube or
bobbin or the groove cut therein.
In practice these hoops answer their intended purpose very well but it has been
considered advisable to render their attachment more secure especially in some of
their applications and this is the principal object of my invention.
In the case of plain cylindrical tubes not having shoulders to aid in securing the
hoop it has not been possible to obtain as firm a hold upon the tube as is desirable..
To obviate this defect 1 turn inward the edge of the hoop at the opposite end to
the one which is flanged as aforesaid.
When the
This turned-in edge forms an additional flange. Without some other change
in the formation of the hoop this additional flange would prevent the hoop from
being forced upon the tube. To get over this difficulty I make the hoop of a
conoidal form instead of a cylindrical form as aforesaid, the amount of taper being
sufficient to enable the inner edge of the flange to pass on to the tube.
hoop is being applied it is condensed or contracted by spinning or by the pressure
of dies or by suitable means so as to reduce the hoop to the cylindrical form the
additional flange being forced into the wood or material of the tube or into a
In the
groove cut therein. When so applied the hoops cannot come off in use.
cases of hoops for shouldered tubes I force the additional flange over the shoulder
and into the material or into a groove and in some or in all cases I propose to make
such flange of a form which will admit of its being turned inward toward the tube
in an inclined or curved direction toward the other end of the hoop so as to form a
rounded or "beaded "shoulder. I carry out the same principle in the application
of the protecting hoops rings or caps-which may not in all cases be cylindrical-
to the other forms of tubes pirns or bobbins making them too large in the first
instance and contracting them in the application so as to force the additional flange
or edge into the material or into a receiving groove.
In the cases of lining ferules I employ the converse method by making the
ferules too small and by expanding them in the application so as to force a
projecting edge into the material.
In order that the nature and object of my invention may be clearly understood
Liwill describe the same more fully with reference to the accompanying drawings.
In the said drawings,
Fig. 1 represents one of my improved hoops.
1

page_text: Fig. 3 shows the same hoop and tube end when the application is completed by
compressing the hoop.
In Fig. 1a is the part of the hoop which has hitherto been made cylindrical
but which I make conical and a' is the additional turned in edge or flange. The
parts a² and a³ are made as usual.
The amount of taper in the shell a is such as that the tube end will pass through
the circular hole at a' a' as indicated in Fig. 2 in which 6 represents the upper end
of a tube such for example as a slubbing or roving tube. A groove c is turned on
the outside of the tube to receive the edge a¹ when the hoop is contracted as
hereinafter described. Fig. 2 shows the hoop got into position upon the tube but
not fixed. To fix the tube I compress the hoop between dies which are caused to
move radially toward the tubes so as to press the hoop in several directions upon
the tube or I adopt other suitable means which will cause the hoop to contract in
diameter, until it tightly fits the tube as in Fig. 3. It will be seen that in this
construction the edge a¹ becomes forced into the groove at c. When so applied the
hoop is very secure so that it could not be removed without cutting it or the bobbin
in pieces. Another advantage arises from the fact that the sharp or cut edge at a¹
is completely embedded in the wood of the tube and a smooth finish is obtained so
that there is no sharp edge to cut or catch the yarn. The additional flange a¹ also
increases the strength of the hoop.
The example illustrated by Figs. 4 and 5 shows my invention as applied to a
tube which is formed with a head of larger diameter than the main part 6 of the
tube so that a shoulder is formed at 62. Previously to my invention the edge of
the cylindrical hoop has been slightly rubbed down on to this shoulder. I make
the hoop with a turned in edge at a but this edge is more turned in than in the
case of the edge a' and is preferably a little rounded or otherwise the extreme edge
at a is a little turned up as shown in the drawing. When the hoop is contracted
upon the bobbin the shoulder is quite covered and the cut edge is pressed into
the wood so that a neat smooth finish is obtained and the hoop is so firmly secured
as that it cannot be removed. In Figs. 6 and 7 a hoop. for the driving end of the
tube is represented separately and in position. This hoop differs from the one in
Fig. 4 only in that the lining ferule or upturned flange a³ is deeper in the one case
than in the other. When the hoop has been applied and firmly secured as in the
other examples the driving slots at e are formed in the usual manner.
In Fig. 9 is the lower end of a bobbin such as is used in ring spinning and g is
a lining ferule which I insert in the bore of the bobbin. This differs from ferules
which my firm has applied for some years in that it is formed with an outwardly
projecting edge at g₁ and that it is made of a conical form as indicated in Fig. 8.
The diameter across the end g' is made about equal to the inside diameter of the
bobbin end so that the ferule can be pushed up into the bobbin. When in position
the ferule is expanded from the conical to the cylindrical form the edge g¹ being
thereby forced into a groove cut at g' to receive the edge. It will be seen that the
cut edge at g' is buried in the wood and the hoop becomes inseparably attached to
the bobbin.
Figs. 10 and 11 show how. I fix hoops upon ring spinning bobbins in accordance
with my present invention.
Figs. 12 and 13 illustrate the application of my invention to the tipping of pirn
bobbins. The metal hoop is made more conical or tapering than the bobbin end i
and is formed with an inturned edge h' which is forced into a groove at i¹ by
compressing the hoop upon the bobbin tip as in the cases of the hoops for the
tubes. Fig. 14 represents a thin metal protector for the bobbin head k which
appears in Fig. 15. The protector j is made with an inturned and curved edge j¹
and is made a little larger than the bobbin head so that it can be got into position.
The protector is secured upon the bobbin head by compressing and reducing it
until it tightly fits the bobbin head the edge j' as well as the ordinary edge j³ being
forced into grooves turned in the bobbin head so that the cut edges of the protector
are buried and a smooth finish is obtained.

page_text: I do not confine myself to the exact forms of the tubes and bobbins illustrated
by the drawings nor of the hoops or protectors applied thereto so long as the novel
features of my invention as hereinbefore defined are retained.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The wood tube end 6 combined with the metal hoop a a' a' a compressed to
the cylindrical form so as to fit the tube and to force the part a³ into the groove e
as set forth.
2. The wood tube end combined with the metal hoop a a² as a compressed to
fit the tube and to force the edge at into a groove at 62 as set forth.
3. The bobbin end f combined with the lining ferule g g' applied within the
bobbin and expanded to fit the bore of the bobbin and to force the edge g¹ into
the groove f¹ as set forth.
4. The pirn bobbin end i combined with the hoop h h¹ compressed upon the
bobbin tip so as to force the edge into a groove at as set forth.
5. The bobbin head k combined with the hoop jjj applied and secured as set
forth.
1005
Dated tisu uay
in a
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.