IMPROVEMENTS IN MACHINERY FOR SPINNING WOOL OR VARIOUS OTHER FIBROUS MATTERS
Year: 1872

page_text: LETTERS PATENT to Thomas Nutting, of Rhode Island, of the United
States of America, for the Invention of "IMPROVEMENTS IN MACHINERY
FOR SPINNING WOOL OR VARIOUS OTHER FIBROUS MATTERS.”
Sealed the 24th May 1872, and dated the 8th April 1872.

page_text: Figure 12 is a horizontal section taken through the geers and their
pivots and the bearings thereof.
Figure 13 is another side view of the geers and their carrier.
In carrying out my Invention as shown in Figures 1, 2, and 3, of the
Drawings, I make the helical driver or case in which the drawing geers
are placed open at top, and furnish the geer stand or carrier with a small
yarn guide to project from one of the geer standards directly over the
bite of the two geers, the driving whorl of the geer carrier being
arranged below the helical driver. By my construction the whole top
of the helical driver becomes uncovered so as to render the interior of it
and the drawing geers perfectly free of access.
In said Figures 1, 2, and 3, A denotes the helical driver which is a
cylindrical box entirely open at top and provided with a screw thread b
extending around its interior curved surface. This driver is mounted on
the upper end of a tubular shaft or spindle B, arranged and supported in
a bolster or bearing C, there being a whorl D fixed on such shaft just
below the driver. An endless band is to run on this whorl in order to
put the driver in revolution. A tubular shaft E provided with a whor!
F goes up through and takes a bearing in the spindle B, and has fixed to
its upper end the base or head c of the supporter or carrier G of the
drawing rollers or geers H, H, arranged and engaged with each other as
shown. These geers engage with and are revolved by the screw thread
of the helical driver while the geers and carrier are in revolution
therein, or it is made to revolve on them. An endless band is to run
on the whorl of the geer carrier shaft. The sliver to be drawn and
twisted passes through the eye of the guide, thence between the two
geers, and thence down through the bore of the shaft of the geer
carrier.
I
The apparatus above described is intended for use over a ring and
traveller bobbin and spindle of a ring spinning machine, or between
such and the delivery rollers.
In the remaining Figures 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13, the
helical driver is shown at A as open at top and provided. with two
separate helical or screw threads b, 6', extending around its interior
curved surface and arranged with each other in manner as shown, the
pitch of each thread being double what a single thread would have, as
shown in Figures 1 and 3; the shaft or spindle B of the driver is

page_text: arranged like that in Figure 3 in a bolster or bearing C, which for some
distance extends into a cup or oil reservoir I projecting upward from the
whorl F of the shaft or spindle E- of the carrier G of the drawing
geers H, H.
The cup or oil reservoir I receives the oil which may flow out of the
lower end of the bolster, and thereby prevents it from dropping or
running upon the whorl F, and being thrown from such by centrifugal
force, while the whorl may be in revolution. The oil by being preserved
in the reservoir will be utilized by being drawn upward therefrom more
or less, while the spindle may be in revolution in the bolster, the oil
generally flowing into the reservoir while the spindle may be at rest.
In Figures 1 and 3 the geers revolve on stationary pivots and
bearings, but one of the said geers may have its pivots arranged in
movable boxes provided with a spring or springs to press them in a
direction towards the other geer.
In Figures 7 and 8 one of the geers is shewn as arranged on a
stationary arbor d, the other geer having its pivot e supported and
arranged in sockets or recesses formed as shown at g, g¹, in the carrier.
A spring or springs h fixed to the carrier and arranged as shown bear
against the pivot. This spring or springs and recesses allow of the geer
pivoted to such pivot to move away from the other geer, the spring or
springs serving to force the geer toward its fellow.
By having one geer provided with such appliances or movable as
described, it while in engagement with the other geer will be free to
accommodate itself to the variations of diameter of the sliver while the
latter may be passing between the two geers.
With the open top helical carrier as described ready access may be
had at any time to the drawing geers in order to clean them or effect the
removal from them of any fibrous matters that may gather on them so
as to obstruct their operation.
By having two screw threads in the helical driver instead of one
continuous screw thread, each drawing geer during a revolution of the
carrier will revolve as far again as it would with a single helical thread
in the driver. Thus a great advantage in the delivery of the sliver is
effected.

page_text: I claim as my Invention the helical driver open at top and furnished
with a single screw thread, or two of such on its inner surface and
arranged and combined with the set of drawing geers and a thread
guide, and their rotary carrier, all being constructed substantially in
manner and to operate as described and represented.
I also claim the combination of the whorl F, its oil receiver I, the
bolster C, the helical driver A, the spindle B, whorl D, and shaft E, all
being constructed and arranged substantially in manner and to operate
as described.
I also claim the geer carrier as provided with the movable pivot and
spring or springs applied to it, and one of its pair of drawing geers.
I also claim the guide, the geer carrier and geers, their shaft and its
whorl, the helical driver and its whorl and bolster, combined and
arranged substantially as, set forth, and either provided or unprovided
with the oil reservoir applied to the carrier whorl and the bolster as
stated.
'
In witness whereof, I, the said Thomas Nutting, have hereunto
set my hand and scal, this Fifteenth day of March, A.D. 1872.
THOMAS NUTTING. (L.S.)