IMPROVEMENTS IN APPARATUS FOR SPINNING AND DOUBLING YARNS OR THREADS
Year: 1876

page_text: "
LETTERS PATENT to William Benson, of Manchester, in the County of Lancaster,
for the Invention of IMPROVEMENTS IN APPARATUS FOR SPINNING AND
DOUBLING YARNS OR THREADS."
•
Sealed the 28th October 1876, and dated the 2nd May 1876.
PROVISIONAL SPECIFICATION left by the said William Benson at the Office
of the Commissioners of Patents on the 2nd May 1876.
WILLIAM BENSON, of Manchester, in the County of Lancaster.
" IMPROVEMENTS
IN APPARATUS FOR SPINNING AND DOUBLING YARNS OR THREADS"
My Invention is applicable to the throstles employed in the spinning of yarn and
to the doubling frames or machines employed in the doubling of yarns. In such
apparatus as constructed previously to my Invention the upper end of the spindle
has in some cases revolved in a cast-iron bolster formed with a collar upon which
the drag washer has revolved, and the bobbin has been mounted on a cast-iron
shell which has revolved on the said bolster. I form the cylindrical portion of the
said bolster of wrought iron or steel, and preferably of iron or steel tubing bushed
for a short length from each end with brass or with a suitable alloy, and I form a
Sinall shoulder on the said bolster and form a screw thread on the lower end of the
bolster. When the said bushes are much worn they may be removed or driven out
and new bushes inserted in their places. A washer or dish forms the bed for the
drag washer. When the bolster is to be secured to the rail the screwed end of
the bolster is passed through a central hole in the said dish and through a hole in
the rail, and is secured in position by means of a nut, the said washer or dish being
held between the aforesaid shoulder and the rail.
When I employ a shell to receive the bobbin I make the said shell from thin
brass tubing; I make a perforation in the aforesaid bolster above the said shoulder
in order that lubricant may pass through to the outer surface of the bolster. When
I do not employ the said shell I bush the bobbin with brass or with a suitable
metal or alloy.
In one arrangement I insert a bush in each end of the barrel of the bobbin, cach
bush extending some distance into the barrel, a chamber being left between the two
bushes; or I insert, or screw into, or fix in the barrel or flanches of the bobbin a
thin tube or bush extending throughout the length of the barrel, or constituting the
barrel.

page_text: By reason of the said improvement I believe that the accuracy of fit and the
durability of the parts are increased, and I am also enabled to reduce the diameter
of the barrel of the bobbin.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Benson in the Great Seal Patent Office on the 2nd November
1876.
WILLIAM BENSON, of Manchester, in the County of Lancaster. " IMPROVEMENTS
IN APPARATUS FOR SPINNING AND DOUBLING YARNS AND THREADS."
My Invention relates to the throstles employed in the spinning of yarn, and to
tho doubling frames or machines employed in the doubling of yarns. In such
apparatus as constructed previously to my Invention the upper end of the spindle
has in some cases revolved in a cast-iron bolster formed with a collar upon which
the drag washer has revolved, and the bobbin has been mounted on a cast-iron shell
which has revolved in the said bolster. I form the cylindrical portion of the said
bolster of wrought iron or steel, and proferably of iron or steel tubing bushed for a
short length from each end with brass or with a suitable alloy, and I bush the
bobbin with brass or with a suitable metal or alloy and cause it to revolvo directly
on the said bolster.
And in order that my said Invention may be fully understood I have appended
hereunto a Sheet of Drawings made about the full size and marked with letters of
reference, to which Drawings I will now refer.
Figs. 1 and 2 represent my improved bolster, Fig. 1 being drawn in vertical
section; and Figs. 3 and 4 represent sections of the improved bobbins. The said
bolster is made of wrought iron or steel tubing, turned outside and bored or not
bored, as may be considered to be necessary. When a good quality of tubing is
used the tube which is to be made into a bolster may be rimered out or bored to
some extent with a suitable tool cither throughout its length or for a distance from
each end. The bolsters may be hardened or case hardened if preferred. Bushes of
brass or other suitable metal or alloy cut from tubes of the selected metal or other-
wise formed are driven or forced into cach end of the tube. The sections of these
bushes are indicated by the thick black lines a, a. The bushes when fixed in
position are bored or rimered to suit the spindle which is to revolve in the bolster.
The outside of the bolster is turned so that the bobbin can revolve upon it, and is
formed at one end with a scrow thread for attachment to the rail. A shoulder b is
left upon the bolster, and in the example short bearing surfaces are formed at c, c,
the intermediate parts being turned down so as to clear the bush in the bobbin.
In some cases the part upon which the bobbin revolves may be turned to an
uniform diameter. A groove, berein-after referred to, is formed above the shoulder b,
but this groove may be dispensed with if not considered to be necessary. A bolo
seen above the said shoulder in Fig. 2 and drilled through the shell of the bolster is
intended to permit lubricant to pass through from the interior to lubricato the
outside of the bolster.
In Fig. 3 a bobbin fitted to work upon the said bolster is represented in section.
This bobbin is of an ordinary description with the exception that it is bored to
receive an inner bush d, represented in section by thick black lines. This bush I
usually make of cast iron as thin as is considered to be expedient, but the said bush
may be made of other metal, or of thin brass tubing, or of tubing of other metal.
The said bush is driven or forced into the bobbin, and is bored or rimerod out
either before or after fixing in position. In the example the bush does not quite
extend throughout the length of the bobbin, but it may so extend if preferred.
Fig. 4 illustrates a modification in this arrangement. In this example short
bushes e, e, are screwed into the ends of the bobbin. When so bushed I prefer to
bore or turn up the bushes after they have been fixed in position. This arrange-

page_text: ment is suitable for use with a bolster which has been turned of an uniform
diameter at the part upon which the bobbin is to revolve. The bushes may be
driven in and not screwed if screwing is not considered to be necessary.
Fig. 5 represents the bolster and bobbin represented by Figs. 1, 2, and 3, and an
ordinary spindle and flyer in working positions. The lower end of the bolster is
passed through a metal washer fand then through a hole in the rail g, and is
secured by means of a nut h, tho shoulder 6 bearing upon the said washer; a drag
washer i is held in position by the herein-before mentioned groove which is formed
above the said shoulder. The bobbin is mounted upon the bolster and revolves
thereupon.
When a bobbin fitted in the manner indicated in Fig. 4 is used the bolster would
be made a little longer in proportion than is represented in the Drawings.
When the bushes in the bolster are much worn they may be removed or driven
out and new bushes inserted in their places.
Having now fully set forth and indicated the nature of the said improvements,
and the manner in which I carry the same into practical effect, I would have it to
be understood in conclusion that I claim,-
First. The wrought iron or steel bushed bolster substantially as and for the
purposes herein-before set forth and indicated.
Secondly. The bolster made of wrought-iron or steel tubing and bushed with
brass or with bushes of a suitable alloy, for the purposes herein-before set forth.
And, Instly. Bushing the bobbins with metal and fitting them to revolve on the
said bolstors, substantially as set forth and indicated herein-before and in and by
the accompanying Drawings.
In witness whereof, I, the said William Benson, have hereunto set my hand and
seal, this First day of November, in the year of our Lord One thousand
eight hundred and seventy-six.
Signed and sealed by the said
William Benson in the presence of
HUGH GRANT,
Olerk to Edward K. Dutton,
Agent to the Patentee,
3, Princess Street,
Manchester.
WILLIAM BENSON. (LA.)