IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS FOR SPINNING AND DOUBLING COTTON AND OTHER FIBROUS MATERIALS
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by James Mounsey at the Office of the
Commissioners of Patents on the 14th January 1881.
JAMES MOUNSEY, of Bolton, in the County of Lancaster, Spindle and Flyer
Maker. "IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS FOR SPINNING
AND DOUBLING COTTON AND OTHER FIBROUS MATERIALS."
My Invention relates to that class of machinery known as throstle spinning and
doubling frames, wherein the twisting of yarn is performed by flyers attached to
the top of the spindles, and consists in an improved mode of constructing the
bolsters in which the spindles revolve, whereby the greatest possible speed can be
obtained without vibration. The outside of these bolsters are provided with rings,
washers, and collars, for supporting the bobbins and regulating the drag according
to the counts of yarn being spun or doubled.
In order to accomplish this object, I fix in a vertical position in the travelling
rail of the machine my improved bolster or bearer, which is made from a com-
bination of cast iron, steel, and brass, or nickel silver, by which combination, as
herein after described, I obtain the greatest possible strength and durability which
is required for supporting and keeping the spindle perfectly steady when driven at
a great speed.
The body of the bolster is made from steel tubing, which is cut in lengths of the
entire length of the bolster, which varies according to the lift required for the
bobbins. I then turn upon one end of the steel tube a number of circumferential
grooves, upon which end is cast a socket and circular flange, the metal filling the
aforesaid circumferential grooves, thereby making the steel tube and the cast iron
socket inseparable only by the action of breaking them asunder. The bottom
end of the socket is turned and screwed, after which it is fixed into the lifting rail,
being fastened underneath by nuts or other equivalents. The inside of the steel
tube or body of the bolster is slightly larger than the diameter of the spindle for
driving the flyer, and to minimize the friction on the spindle the steel tube which
is placed over it is bushed at the top and bottom with brass or nickel silver,
which bushes are bored out to the exact diameter of the spindle blade which works
in them, thus serving as the bearings for supporting the spindle above the lifting
and footstep rails.
The spindles sit and revolve in footsteps fixed in the bottom or footstep rail as
usual, and is placed under the travelling or lifting rail which carries the bolster

page_text: for supporting the top end of the spindle, besides giving the up and down motion
to the bobbins, which revolve round the outside of the aforesaid bolster.
On the lower end of the spindle I fix a wharve or pulley for driving the same by
bands or other equivalents from the ordinary tin cylinders; the top end of the
spindle is screwed, upon which is placed an ordinary flyer, or my improved flyer
which has the legs crooked or curved of an irregular or waved shape, such as is
described in my former Patent, No. 5185, December 11th, in the year 1880.
For the purpose of effecting the drag upon the bobbins, which revolve round the
outside of the moving bolster for the spindle, and which is fixed in the travelling
rail as before described, I reduce or turn down the outside diameter of the top
end of the steel tube for about 3/ths of an inch, over which I place a loose ring or
washer, which is held in position by a projecting flange at the top end of the bush
forming the top bearing for the spindle. The socket which is cast on the steel tube
is provided with a circular flange, above which is a circular collar about 3/4ths of an
inch in diameter, upon which the bobbin sits and revolves; the edge of this circular
collar can be made either flat or convexed at the top, in order to offer the least
possible resistance to the bobbin, giving the least amount of drag, such as is required
when spinning fine counts. For giving the bobbins lateral stability at the bottom,
I place over the steel tube a loose metallic bush or braid the same diameter as the
top ring or washer over which the bobbin sits and revolves; this I place in position
before the top revolving ring or washer for the bobbin to revolve with and the
top bush for the spindle are placed in position, the top ring or washer acting as a
stop to prevent its being drawn off with the bobbins when the action of doffing is
being performed.
To increase the drag, I place or fix cast iron washers upon the aforesaid circular
collar which is above the circular flange on the socket of the bolster, varying in
diameter according to the amount of drag required, and to further effect the drag
I sometimes use the ordinary washer cloths, which I place between the cast iron
washers and the bottom of the bobbin. These washers are numbered in con-
secutive order from 1 to 10, the largest being the diameter of the bottom of the
bobbin.
Some of the advantages obtained by my improvements are,-
Greater steadiness in the motion of the spindle, by being supported at the top end
of the moving bolster.
Increase of speed, resulting in a corresponding increase in the production of
yarn.
Less power required to turn the spindle, owing to its lightness, the spindle,
wharve, and flyer being only about 6 ounces, which is considerably less and lighter
than those in ordinary use.