IMPROVEMENTS IN APPARATUS USED IN SPINNING AND DOUBLING COTTON AND OTHER FIBROUS SUBSTANCES
Year: 1879

page_text: LETTERS PATENT to Henry Ashworth and Thomas Ashworth, both of Walsden,
in the County of Lancaster, for the Invention of "IMPROVEMENTS IN
APPARATUS USED IN SPINNING AND DOUBLING COTTON AND OTHER FIBROUS
SUBSTANCES."
Sealed the 23rd March 1880, and dated the 9th October 1879.
PROVISIONAL SPECIFICATION left by the said Henry Ashworth and Thomas
Ashworth at the Office of the Commissioners of Patents on the 9th October
1879.
HENRY ASHWORTH and THOMAS ASHWORTH, both of Walsden, in the County of
Lancaster. "IMPROVEMENTS IN APPARATUS USED IN SPINNING AND DOUBLING
COTTON AND OTHER FIBROUS SUBSTANCES."
This Invention relates to certain improvements on the subject matter of Letters
Patent granted to the said Henry Ashworth, bearing date the 11th day of April,
A.D. 1872, No. 1074.
The first part of the Invention is designed to prevent the loose tube or shell from
being drawn off the fixed tube or bolster when doffing the bobbins. Instead of
having the upper end of the fixed tube or bolster of a larger diameter than the
body of the tube, so as to get a bearing at the top for the loose tube or shell, we
slightly reduce it in diameter, so as to form a neck about three eighths of an inch
in width near to the top of the bolster.
We then form a ring of metal (preferably of cast iron), which would fit rather
loosely on this neck, the edges of the said ring being bevilled, and with a fine saw
we cut the ring through diagonally, so as to form a spring ring.
This we then open slightly, and spring over the end of the fixed tube or bolster
onto the neck above mentioned, where it sits loosely.
The loose tube or shell is bored to such a size that in passing over this ring it
compresses it alightly, but the upper part is bored out rather larger, and with an
internal shoulder, so that as the loose tube or shell is pushed onto the bolster it
compresses the ring until the shoulder has passed, when the ring expands slightly,
and prevents the loose tube or shell from being drawn off with the bobbin. When
it is required to take off the loose tube it can be done by using a little force, which
will cause the shoulder to pass over and compress the spring ring.

page_text: The second part of our Invention relates to the lubrication of such bolsters. We
make the flange at the bottom of the bolster rather deeper than before, and with
a projecting rim round the lower edge, and immediately above this rim we drill an
oil hole in the centre of the bolster.
The interior of the bolster, which is lined with brass, is slightly rifled or screwed
on the inside, which, as the spindle revolves, causes the oil (fed into the hole above
named) to rise up between the spindle and the bolster, and so lubricate the same.
The top of the bolster being slightly lower than the top of the shell as the oil over-
flows it runs down outside the bolster, and lubricates the interior of the shell.
When it arrives in the cup at the bottom there is another hole drilled in through
the bolster, and it thus runs back to the interior again.
The third part of our Invention relates to an improvement in the construction of
such bolsters us are employed without the loose tube or shell, and with the upper
part of the bore of the bobbin running on the naked spindle. Instead of leaving
the lower part of the exterior of the bolster rather larger in diameter, so as to form
a bearing for the lower end of the bobbin we reduce it in diameter, so as to form a
neck at the bottom, and onto this neck we pass a split cast iron spring ring, similar
to that above described, but made so as to fit closely and revolve freely on the said
neck. This spring ring forms a bearing for the lower end of the bobbin and
reduces the friction.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Ashworth and Thomas Ashworth in the Great Seal Patent
Office on the 8th April 1880.
HENRY ASHWORTH and THOMAS ASHWORTH, both of Walsden, in the County of
Lancaster. "IMPROVEMENTS IN APPARATUS USED IN SPINNING AND DOUBLING
COTTON AND OTHER FIBROUS SUBSTANCES."
This Invention relates to certain improvements upon the subject matter of
Letters Patent granted to the said Henry Ashworth, bearing date the 11th day of
April, A.D. 1872, No. 1074.
The nature and object of our present Invention will be readily understood on
reference to the accompanying Sheet of Drawings, and the following explanation
thereof.
The first part of our Invention is designed to prevent the loose tube or shell from
being drawn off the fixed tube or bolster when doffing the bobbins. Instead of
having the upper end of the fixed tube or bolsters a, a (see elevation Fig. 1 on the
Drawings), of a larger diameter than the body of the tubo, so as to get a bearing at
the top for the loose tube or shell (as explained in the previous Specification above
referred to), we reduce it in diameter, so as to form a neck b, b, about three eighths
of an inch in width near to the top of the bolster.
We then form a ring of cast iron or other metal c, c (Figs. 2 and 3), which would
fit rather loosely on the neck b, b, the edges of the said ring being bevilled, as
shown, and with a fine saw we cut the ring through diagonally (as at d), so as to
form it into a spring ring.
This spring ring c, c, we then open slightly, and spring it over the end of the
fixed tube or bolster a, a, onto the neck b, b, above mentioned, where it sits loosely
(see detached view Fig. 4).
In order to decrease the friction we sometimes form a circumferential groove on
the face of the ring, as shown in section at Fig. 5.
The loose tube or shell e, e (see sectional view Fig. 6), is bored to such a size that
in passing over this ring c, c, it compresses it slightly, but the upper part is bored
out rather larger, and with an internal shoulder at ff, so that as the loose tube or
shell e, e, is pushed onto the bolster it compresses the ring c, c, until the shoulder f, ƒ,
has passed when the ring c, c, expands slightly, and prevents the loose tube or shell
e, e, from being drawn off with the bobbin.
When it is required to take off the loose tube e, e, it can be done by using a
little force, which will cause the shoulder f, f, to pass over, and compress the spring
ring c, c.
The second part of our Invention relates to the lubrication of such bolsters, and
is illustrated in section at Fig. 7. We make the flange g, g, at the bottoin of the
bolster a, a, rather deeper than before, and with a projecting rim h, h, round the
lower edge, and immediately above this rim we drill an oil hole i, i, into the centre
of the bolster.
The interior of the bolster is lined with brass, which is slightly rifled or screwed
on the inside, and as the spindle revolves causes the oil (fed into the hole i, i, above
mentioned) to rise up between the spindle and the bolster, and so lubricate the
same. The top of the bolster a, a, being slightly lower than the top of the shell e, e,
as the oil overflows it runs down outside the bolster a, a, and lubricates the interior
of the shell e, e. When it arrives in the cup g, g, at the bottom there is another
hole k, k, drilled in through the bolster, and the oil thus runs back to the interior
again.
The third part of our Invention relates to an improvement in the construction of
such bolsters as are employed without the loose tube or shell, and with the upper

page_text: part of the bore of the bobbin running on the naked spindle, and is illustrated in
section at Fig. 8 on the Drawings.
Instead of having the lower part of the exterior of the bolster rather larger in
diameter, so as to form a bearing for the lower end of the bobbin, we reduce
it in diameter so as to form a neck at the bottom, and onto this neck we pass a
split cast iron spring ring 1, 1, similar to the ring c, c, above described, but made
so as to fit closely, and revolve freely on the said neck.
This spring ring thus forms a bearing for the lower end of the bobbin, and
reduces the friction.
'
Having now described the nature and object of our said Invention for "Improve- 1
ments in Apparatus Used in Spinning and Doubling Cotton and other Fibrous
Substances," together with the manner in which the same is to be or may be
performed or carried into practical effect, we would remark in conclusion that we
claim as our Invention,―
First. The construction and use of a cut spring ring either at the top or bottom 1
of the fixed tube or bolster, substantially in the manner and for the purposes
herein before more particularly set forth, and
Secondly. We claim the novel method of lubricating such bolsters, as herein-
before described and illustrated with reference to Fig. 7 of the Drawings annexed.
In witness whereof, I, the said Thomas Ashworth (on behalf of myself and 2
the said Henry Ashworth) have hereunto set my hand and seal this Sixth
day of April, in the year of our Lord One thousand eight hundred and
eighty.