IMPROVEMENTS IN MACHINERY OR APPARATUS FOR SPINNING AND TWISTING WOOL OR OTHER FIBROUS SUBSTANCES
Year: 1868

page_text: PROVISIONAL SPECIFICATION left by Joseph Ladley at the Office of
the Commissioners of Patents, with his Petition, on the 1st September
1868.
I, JOSEPH LADLEY, of Leeds, in the County of York, Woollen
Manufacturer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MACHINERY OR APPARATUS FOR SPINNING AND TWISTING
WOOL OR OTHER FIBROUS SUBSTANCES," to be as follows:-
This Invention relates to that class of machinery employed for
spinning and twisting fibrous substances technically known as "frames,"
whether on the flyer, cap, or cup principle, and wherein the yarn is
conducted or delivered to the spindles or the bobbins by or from between
pairs of nipping rollers.
The improvements consist,-
Firstly. In a method or means of stopping each bobbin from rotating
separately without stopping the machine for piccing broken ends or
other purposes. I arrange that the spindles of flyer frames or the cups
of cup frames, or the bobbins or loose bosses of cap frames which

page_text: have rotary motion given to them shall be driven by surface friction,
or in cases where the yarn is sufficiently strong to bear the sudden
strain thereon when starting a catch or clutch may be employed in
connection with the wharle, whirl, or driving pulley. I also arrange that
the top roller (when placed in position) by its weight will press upon
and operate a lever and rod in connection with another lever, which
places the wharle, whirl, or driving pulley in contact with a fixed collar
on the spindle, the cup, bobbin, or loose boss required to be driven, and
when the roller is removed from its position such levers are operated by
counteracting weight or spring to remove the said wharlo, whirl, or
driving pulley and catch or clutch (if used) from contact as aforesaid,
and thereby stop the rotation of the said spindle, cup, hobbin, or
loose boss.
Secondly. The improvements consist in a method or means of stripping
or doffing each bobbin separately and without stopping the rotation of
the other bobbins in the same frame. For this purpose in addition to
the means above described I operate the transverse or yarn guides by
means of a shaft and toothed wheels gearing into racks hinged to the
said guides, which are kept in gear by springs or weights, or instead of
teeth in the wheels and racks surface friction will be sufficient in some
cases for producing the traverse motion of the guides. When any one
of these racks is pressed at the loose end it will come out of gear or
contact with the guide, which will then drop out of the way for the
convenience of stripping of doffing the bobbin. And instead of the
racks being moveable the wheels may be arranged to move out of contact
with the racks if desirable. This shaft has both an oscillatory and a slow
progressive rotary motion imparted to it so as to produce the required
progressive traverse of the yarn in winding it on the bobbins. These
combined motions may be effected by a reciprocatory rack gearing in a
wheel fixed on the said shaft, which rack at each alternate stroke is lifted
out of gear by an inclined catch hinged, so that on the return stroke
causes it to skip over one or two of the teeth of the said wheel according
as arranged for, and thereby produce both oscillatory and progressive
rotary motion of the said shaft,