IMPROVEMENTS IN THROSTLE FRAMES OR SPINNING MACHINERY
Year: 1880

page_text: PROVISIONAL SPECIFICATION left by John Henry Johnson at the Office
of the Commissioners of Patents on the 23rd April 1880. A communication
from abroad by Messieurs Tristram and Lancashire, of Paris, in the Republic
of France.
JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN THROSTLE FRAMES OR SPINNING MACHINERY."
A communication from abroad by Messieurs Tristram and Lancashire, of Paris, in
the Republic of France.
This Invention relates to spinning machinery, and it consists of certain improve-
ments in the construction and arrangement of the spindles employed in tho
continuous spinning machines known as American or Ring throstle frames, by means
of which improvements great advantages are realised over the systems heretofore
adopted. Among other advantages a considerable saving is effected in cost of
manufacturing spindles according to this Invention, as well as in the cost of the
motive power required to drive the same.
The productive power of the spinning machinery is also increased, and the torsion
imparted to the yarn or thread is rendered perfectly uniform.
The Invention consists essentially in substituting fixed spindles for the movable
spindles heretofore employed, the said fixed spindles acting as long supports, which
impart the desired stiffness or rigidity to the cop, at the same time enabling the
weight of the moving parts to be considerably reduced.
1
According to the improved arrangement the support of the cop consists simply of
a light tube or casing which revolves upon a fixed spindle under conditions
which ensure the rotation of the tube or case in combination with perfect
lubrication.
The fixed spindle and the arrangements for effecting the lubrication of the
working parts without bringing them into absolute contact form the principal
features of this Invention.
In carrying out this Invention a steel spindle is firmly fixed to a step har or
support by set screws. The spindle is connected to a step or collar which is secured
to the spindle immediately above the frame, and forms an annular trough at the
lower part of the spindle. A casing is provided which encloses all the parts at the
base of the spindle so as to protect the same from dust and dirt.

page_text: The foregoing description refers to the fixed or stationary parts; the moveable
parts are supported by a small pulloy forming part of a tube or sleeve which is free
to turn upon the spindle and tho internal diameter of which coincides with the
diameter of the spindle at its lower part, but is slightly greater than the diameter
of the spindle at its upper part. The pulley is provided with a pendent flange on
its lower side, which covers or surrounds the annular trough herein before referred
to at the lower part of the spindle. The upper part of the pulley is provided with
a flange forming an annular trough, communicating by means of suitable holes with
the annular space formed round the spindle by the larger diameter of the sleeve
hereinbefore referred to. This trough is covered by a pendent conical flange formed
on the upper part of the sleeve, a taper tube of very light material is soldered or
secured to the upper extremity of the sleeve, and is provided with an internal collar
or contraction which bears against the upper part of the spindle so as to maintain
the tube concentric with the latter and prevent all vibration. The upper extremity
of the tube is closed by a small cap or plug inserted in the end of the tube for the
purpose of excluding all foreign substances.
According to another modification of this arrangement, the internal collar or
contraction is arranged so as to work upon the upper extremity of the spindle,
which thus acts as a pivot.
Spindles constructed and arranged as hereinbefore described when charged with
a full cop of from one and a half to two ounces in weight are much lighter than
common spindles when empty, and work with considerably less friction, at the same
time avoiding vibration.
The arrangements herein before described may be applied to spinning frames of
every description, the fixed spindles being provided with the means for lubricating
as herein before described, or other suitable means, and acting as a support for a
movable tube upon which the cop is formed.