Improvements in Bobbin or Tube Protector Hoops and Ferrules, and in the Manufacture and Application of the same.
Year: 1893

page_text: Date of Application, 12th Apr., 1893
Complete Specification Left, 12th Jan., 1894-Accepted, 17th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in Bobbin or Tube Protector Hoops and Ferrules, and
in the Manufacture and Application of the same.
I HERBERT WILLIAM WILSON of Wilson Brothers Limited, of Cornholme,
Todmorden, in the County of Lancaster, Bobbin Manufacturers, do hereby
declare the nature of this invention to be as follows :-
My invention relates to the protection and strengthening of the bobbins or tubes
used in textile machinery and more particularly to those used in preparation and
spinning frames.
In a former invention for which Letters Patent Number 1772 of the year 1881
have been granted to my Firm hoops and ferrules were made from sheet metal
stamped into form and a later invention for which Letters Patent Number 18790
of the year 1891 have been granted to me had for its object to improve the
formation and application of such hoops and ferrules.
It is to such hoops and protector appliances that my invention is applicable. In
the carrying into effect of the said former invention the metal hoops and ferrules
have in each case been made with a flange or turned up or turned in edge which
has been forced into a groove in the tube in the application of the hoop.
In some cases the hoops have become loose and have turned round so as to
infringe upon or block up the driving slot spaces in the foot of the tube.
To remedy this defect I form the said flange or edge with teeth, or otherwise I
might make it of a saw-like form so that when the hoop or ferrule is applied the
teeth are forced into the substance of the tube and the hold of the appliance upon
the tube is greatly increased. In the preparation of the tube it is not necessary
to cut a groove to receive the said flange or edge or it is not necessary to cut a
groove so deep as was required for the old forms of hoops or ferrules a very slight
grooving of the tube end being sufficient. The improved hoops might be made in
any suitable manner. For example in making hoops for exterior application a
dished blank is first formed.
The central portion of the bottom of this blank is then cut out by means of a
punch which leaves a serrated margin to the hole and this margin is then turned up
to form the aforesaid flange or edge.
In the cases of ferrules for lining tubes for spinning frames the blank from which
made is cut with a serrated edge.
the ferrule
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f Amil 1000
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.
COMPLETE SPECIFICATION.
Improvements in Bobbin or Tube Protector Hoops and Ferrules, and
in the Manufacture and Application of the same.
I HERBERT WILLIAM WILSON of Wilson Brothers Limited of Cornholme,
Todmorden, in the County of Lancaster, Bobbin Manufacturers, 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 protection and strengthening of the bobbins or tubes

page_text: used in textile machinery and more particularly to those used in preparation and
spinning frames.
In a former invention for which Letters Patent Number 1772 of the year 1881
have been granted to my Firm hoops and ferrules were made from sheet metal
stamped into form and a later invention for which Letters Patent Number 18790
of the year 1891 have been granted to me had for its object to improve the
formation and application of such hoops and ferrules.
It is to such hoops and protector appliances that my invention is applicable. In
the carrying into effect of the said former invention the metal hoops and ferrules
have in each case been made with a flange or turned up or turned in edge which
has been forced into a groove in the tube in the application of the hoop.
In some cases as for example by shrinkage of the wood or from other causes
the hoops have become loose and have turned round so as to infringe upon or block
up the driving slot spaces in the foot of the tube.
To remedy this defect I form the said flange or edge with teeth, or otherwise
I might make it of a saw-like form so that when the hoop or ferrule is applied the
teeth are forced into the substance of the tube and the hold of the appliance upon
the tube is greatly increased.
In the preparation of the tube it is not necessary to cut a groove to receive the
said flange or edge or it is not necessary to cut a groove so deep as was required
for the old forms of hoops or ferrules a very slight grooving of the tube end being
sufficient.
The accompanying sheet of drawings will enable the reader to understand more
clearly the specific nature of my invention.
For example referring to Fig. 1 which is a separate sectional view of a hoop a
made in accordance with the old plan, it will be seen that the inward and upward
turned lip or flange a³, is quite smooth on its upper edge. Such a hoop when
applied to a slubbing roving or intermediate bobbin as shown for example in Fig. 2,
required to have a groove cut in the bobbin foot to permit of the entering and
pressing home of the flange a² into the bobbin foot. Furthermore as the only
means of adhesion between the hoop and the bobbin consisted of the frictional
contact of smooth surfaces the hoop was very liable to become loose and turn so as
to block up or infringe upon the driving slots b.
To prevent this is the object of my present invention, and to this end I form the
said flange a² with teeth or projections a¹ as clearly shown in Fig. 3. In applying
such a hoop to a bobbin, as shown for example in Fig. 4, it is not necessary to cut
or turn a groove to give entrance to the serrated edge of the flange.
The teeth a' act as a series of brad-awls and pierce their way into the wood,
allowing the rest of the flange to follow. Thus I save labour in the preparation
of the bobbin. The chief advantage of my invention is however that the teeth a'
when embedded in the bobbin serve as a series of locking points or stops, which
hold the hoop more securely in position and prevent it from becoming loose or
turning on the bobbin.
The end view Fig. 5 has a portion of the bobbin foot in section and the isolated
points marked a¹, a', a', a' represent the teeth of the hoop embedded in the wood. Each
tooth a represents a point of resistance to turning, so that the hoop is as it were
securely nailed in position. In some cases it is customary to apply the hoop a as a
liner applied to the interior of the bobbin foot as shown in Fig. 6. The lip or
edge a of such a hoop may be similarly toothed as in the preceding forms and
with similar results.
In the case of bobbins having their upper ends protected by hoops, this hoop also
may have a serrated or irregular sunk edge. For example Fig. 7 is a section of a
hoop a for application to the upper end of a bobbin and Fig. 8 shows the hoop
applied. The teeth a' are sunk into the substance of the bobbin, and thereby
prevent displacement or turning of the hoop as in the foregoing instances.
The number, shape and disposition of the teeth or projections on the sunk edge

page_text: of the hoop are not material so long as what is substantially a serrated or irregular
sunk edge is employed.
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.
In the manufacture of protector hoops for application to the bobbins of slubbing,
roving and intermediate frames, forming the retaining flange, lip or edge of such
hoops, with teeth, projections or irregularities so that when the said lip or flange
is sunk into the substance of the bobbin, in the act of applying the hoop, the hoop
is securely held in position and prevented from becoming displaced or turning on
or in the bobbin substantially as described and shown.
1L 11th day of Connery 1894
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.