SPINNING MACHINERY "
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by the said Francis Heslop at the Office
of the Commissioners of Patents on the 13th June 1883.
FRANCIS HESLOP of Leeds in the County of York Mechanic
IN SPINNING MACHINERY
"
"IMPROVEMENTS.
My invention relates to that class of spinning mechanism in which a nipper is
employed to hold the sliver at a point intermediate between pins which bring the
fibre forward and appliances by which the fibre is drawn out of the pins and
twisted
The nipper I employ consists of a guide trough set in an inclined position and a
plate or cover sliding upon the inclined upper edges of the trough.
The trough and its cover are so formed that they enclose between them a channel
The dimensions of this eye
contracting to an eye for the passage of the sliver.
will vary with the position of the cover. A spring is applied which tends to draw
the cover forward down the incline in a direction opposite to that in which the
sliver travels. As the cover moves forward it descends and closes the orifice until
a gentle pressure is exerted upon the sliver. This pressure is maintained by the
spring approximately uniform notwithstanding any variation there may be in the
substance of the aliver. When a stouter portion of the sliver passes the cover or
slider moves on slightly with the sliver travelling up the incline and thereby
opening the mouth more widely. The stouter portion of the sliver is thus permitted
to pass freely; when it has done so the spring causes the return of the cover or
slider. This nipper may also be employed in vertical spinning frames.

page_text: k is a bell crank lever to one end of which the spring i is connected; its other
end is forked and embraces a pin g¹ upon the cover.
The springs h and i are capable of regulation by screws and nuts as shown and
on this regulation will depend the pressure exerted on the fibre.
The grooves in the blocks e and f coming together form an eye through which
the fibre passes and in the eye the fibre is lightly nipped sufficiently to stop the
twist which is put upon the fibre by the spinner from running back so that as
indicated in figure 4 the fibre which is untwisted as it leaves the pins and approaches
the nipper takes the twist immediately it is released from the nip. The size of the
eye automatically adjusts itself to the quantity of fibre passing for directly the eye
commences to oppose an increased resistance to the passage of the fibre the cover
moves with the fibre yielding back along its inclined gourse and separating slightly
the blocks e and f.
As the eye opens the pressure exerted on the fibre somewhat increases and as it
closes the pressure diminishes thereby tending to equalise the yarn. This variation
of pressure may be made more or less as desired by the regulation of the springs,
Having thus described the nature of my said Invention and the manner of
performing the same I would have it understood that I claim as my improvements
in spinning machinery my inclined plane self adjusting nipper arranged and
operating substantially as herein.described,
In witness whereof I the said Francis Heslop have hereunto set my hand and seal
this tenth day of December in the year of our Lord One thousand eight hundred
and eighty three.
FRANCIS HESLOP (L.S.)