IMPROVEMENTS IN AND IN THE PRODUCTION OF THE TUBES USED AS BOBBINS IN TEXTILE MACHINERY
Year: 1884

page_text: I SAMUEL WILSON of the Shannon Works Athlone in the County of Roscommon,
Ireland, Timber Merchant do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN AND IN THE PRODUCTION OF THE TUBES USED AS BOBBINS
IN TEXTILE MACHINERY," to be as follows:-
My Invention relates to the wood tubes used in Roving Slubbing and other
machines employed in the preparation of textile materials and principally to the
means employed to strengthen the driving ends of the tubes and to lessen the
liability of the same to split. Previously to my Invention hoops made of malleable
iron and also of sheet metal as for example of tinned iron have been secured by
spinning or turning down the edges over the shoulders of collars or heads turned
upon the tube. The formation of this collar or head upon the tube necessitates the
use of a larger blank to form the tube than would otherwise be required and as a
consequence there is a waste of material. According to my Invention I form a
collar or shoulder upon the hoop and I make the tube of one diameter throughout
or only alightly larger at the driving end. The hoop may be secured to the tubo
by milling down an edge projecting beyond the said collar into a groove formed on
the tube or in the cases of tubes formed with an enlarged portion the hoop may be
secured by milling the projecting edge over the shoulder formed by the enlargement,
the outer edge of the hoop being in some cases turned or milled down over the
bottom end of the tube. The hoop may be formed with a screw thread and be
screwed upon the tube. In a modification I form the wood collar separately and
secure it on the end of the tube which is turned down to receive the collar. The
metal hoop extends only to or slightly beyond the tops of the driving slots and is
secured by milling down the edge into a groove or nick or by pressing or folding
portions into the driving slots. This form of hoop is also applicable to ordinary
tubes. In the cutting up of the material for the tubes pieces occur too short to form
tubes. To utilise these short lengths I unite together two short pieces to form a
tube. I connect the two lengths by socketing one length into the other making
them a tight fit, so that one has to be forced into the other, glue being applied as a
matter of course. I prefer to strengthen the joint by the application of a thin
metal hoop applied before the parts are put together or by an exterior strengthening
band of twine wire or suitable material Tubes so formed are less liable to split
from end to end than ordinary tubes.
1

page_text: COMPLETE SPECIFICATION.
1
I SAMUEL WILSON of the Shannon Works Athlone in the County of Roscommon,
Ireland, Timber Merchant, do hereby declare the nature of the said invention for
"IMPROVEMENTS IN AND IN THE PRODUCTION OF THE TUBES USED AS BQBBINS IN
TEXTILE MACHINERY" 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 wood tubes used in Roving Slubbing and other
machines employed in the preparation of textile materials and principally to the
ineans employed to strengthen the ends of the tubes to make them more durable.
and to lessen the liability of the same to split.
Previously to my invention hoops made of malleable iron and also of sheet metal
as for example of tinned iron or steel and brass have been stamped, pressed or spun
into form with flanges on and applied by being pressed into the end of the wood
tube or bobbin or into the bore and the other edge has been milled or pressed over
the shoulder of the head of the bobbin or tube.
My Invention meets certain objections that have been raised to previous attempts
.namely that when only a thin portion of the wood has been left between the flange
of the protector and the part on which the bobbin revolved such thin portion of
wood has broken off in the working thereby destroying the steadiness of the bobbin
on the spindle and consequently rendering the bobbin useless. In my invention
the full thickness of the wood end of the bobbin is left intact whereby the foregoing
objection is obviated. In other cases wherein the flange of the protector extends
entirely over the end of the bobbin and enters the bore covering the wood the
latter by coming into contact with the bobbin wheel produces dirty black oil or
grease which ultimately damages the yarn. Bobbins being made of wood are
absorbents of oil and grease and have been frequently used in preference to those
having malleable iron or other metal protectors on account of the dirty black oil
or grease which has accumulated on the protector and has come into contact with
the yarn when the full bobbins have been doffed into skips or bins and has thereby
seriously damaged the yarn. On the contrary in my invention the wood composing the
whole surface of the bore and end of the tube comes in contact with the bobbin wheel
and so absorbs the oil or grease. An additional advantage possessed by my invention
is that a large saving in material is effected. In some cases instead of leaving the
blank large enough to form the head out of the wood I make the tube of one
diameter throughout or only slightly larger at the end and form the head by the
use of a metallic hoop or protector having a bead or shoulder which increases the
diameter to the required size, or I form a wood head separately and secure it on the
end of the tube which is turned down, to receive it the head being secured by
means of glue or cement and of a metal hoop or in lieu of the latter by winding
twine or wire in a groove formed for the purpose. By this means a saving is
effected of at least one third of the wood of which the bobbin is formed.
The nature of my invention will be better understood when described with
reference to the accompanying drawings, Fig: 1 represents in section the end of a
tube fitted with my improved malleable iron hoop a represents a wood tube on
which is fixed the metal hoop 6 this hoop is formed with a bead or collar 6¹ which
takes the place of the collar or head usually formed upon the tube in the process of
turning. The hoop has a serrated edge at c above the bead or collar and after it
has been forced on the hoop is further secured to the tube by milling or pressing
down this edge into a nick in the tube as shown at c. The lower end of the hoop
is turned inward so as to protect the end of the tube and also to prevent the hoop
from being forced on too far. Fig: 2. represents a section of the end of a tube fitted
with the same hoop as Fig: 1 but without the serrated edge. Both hoops may be
fixed on the tube with or without turning down the tube or with or without an

page_text: increase in the diameter of the end of the tube or they may be secured by being
screwed on to the tubes. Fig: 3. represents a section of the end of a tube having a
hoop made from tinned iron or steel or from brass or other thin metal forced on
and over the tube end and covering the head of the tube and further secured by the
edges being milled or pressed down over the ends of the head. Fig: 4. represents a
section of the end of a tube fitted with a hoop made of the same material as the
last example but covering only part of the head of the tube extending down to the
driving alots as shown at d and secured by milling or pressing down the top edge
into a groove in the barrel as shown at e. Fig: 5. represents a section of the end of
a tube having a wood head put on and fastened by means of glue or cement and
further secured by the application of a hoop similar to the one in Fig: 4. excepting
that in addition to being secured to the barrel as shown at e the hoop in Fig: 5. is
also milled down or pressed into a groove formed in the head at g. Fig: 6
represents a section of the top end of a tube fitted with a malleable iron hoop
which forms the bead on the tube and is similarly secured as in Fig: 1. Fig: 7.
represents a section of the top end of a tube having a similar hoop as in Fig: 6.
excepting that the hoop instead of being round on the bead is square and is bevelled
similarly to the bead which is turned in the wood of an ordinary tube. Fig: 8
represents a section of the end of a tube fitted with a hoop made from iron or steel
tinned or from brass or other thin metal and provided with a ring of wood h which
is first inserted into the hoop the wood and metal thus put together being fixed on
to the end of the tube and fastened by means of glue or cement and further
secured by milling or pressing down the outside edge at i over the end of the tube
and the inside edge at k into a groove in the barrel as clearly indicated. Fig: 9.
illustrates the method whereby I utilise the short pieces of material. In this
example the tube is made by securing together two pieces a and a¹. One end of
one piece is turned down to fit a socket which is turned or bored in the end of the
other piece the parts being made a tight fit so that the one part has to be forced
into the other glue being applied to the joint as a matter of course. To strengthen
the joint a thin metal boop is tightly forced on to the end of the part a before the
two parts are united. In lieu of this hoop the socketed end of the part a may be
prevented from splitting by wrapping and cementing twine around it or by other
suitable means.. A tube so formed is less liable to split from end to end than an
ordinary tube made from one piece of material.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is:-
1. The metal hoop 6 in Figs 1. 2. 6. and 7 formed with a collar or bead and
secured upon a tube formed without a collar substantially as and for the purpose
set forth and indicated.
2. The metal hoop formed and secured substantially as and for the purpose set
forth and indicated with reference to Figs: 3 and 4 of the drawings.
3. The collar turned from a separate piece of material and fixed upon the tube
end and protected by means of a metal hoop substantially as set forth and indicated
with reference to Figs: 5 and 8 of the drawings.
4. The method of forming tubes from short lengths of material substantially as
set forth and indicated.