Improvements in Machines for Spinning Hemp and other Fibrous Materials.
Year: 1889

page_text: Date of Application, 9th July, 1889-Accepted, 17th Aug., 1889
COMPLETE SPECIFICATION..
Improvements in Machines for Spinning Hemp and other
Fibrous Materials.
I JOHN FITZ WILLIAM STAIRS of the Dartmouth Rope Works in the City of
Halifax, in the Province of Nova Scotia, Dominion of Canada Manufacturer do
hereby declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement
This invention relates to that class of spinning machines known as the "jenny" in
which the slivers presented to the fliers are drawn through a chain or series of gill-
pins. In such machines as commonly constructed the gill-pin-bars the fliers and the
capstan which draws the yarn from the gill-pin-bars into the fliers are all driven by
belts which derive motion independently of each other from the main shaft of the
machine and if there is any slip in any of the belts there is a tendency to variation of
the relative speeds of the gill-pin-bars the flier and the capstan and consequently a
tendency to produce a want of uniformity in the size of the yarn spun. It has been
for this purpose that an automatic regulator has been applied between the capstan and
the gill-pin-bars.
The object of my improvements is to dispense with what is known as the "auto-
matic regulator" and to obtain a machine of simpler construction in which the
difficulty hereinabove mentioned of producing a uniform yarn is overcome.
accomplish mainly by driving the gill-pin-bars from the flier itself.
This I
I will now proceed to describe my improvements with reference to the drawings
and afterwards point out the novelty in claims.
Figure 1 is a longitudinal vertical sectional view of a jenny embodying my
invention the greater portion of the series of gill-pin-bars being omitted as un-
necessary for the illustration of my improvements. Figure 2 is a plan corresponding
with Figure 1. Figure 3 is an axial sectional view of one of the flier heads and the
capstan and of the bearing for the said head. Figure 4 is a plan illustrating a modi-
fication of the gearing for driving the gill-bars.
Similar letters of reference designaté corresponding parts in all the Figures.
A designates the framing of the machine, B B the fliers, CC the spindles, D D the
bobbins, and EE the capstans all constructed and combined as in well known
jennies now in use.
The flier-journals are supported in boxes a a' on the framing A in the usual
manner. One of the journals of each is furnished with a pulley 6 through which it
receives rotary motion from one of the countershafts F F of the machine the motion
being transmitted by a belt c from a pulley d on the countershaft in a manner well
understood. The journal at the other end of the flier has fast upon it a pulley e
which serves the purpose of driving both the endless series of gill-pin-bars G and the
capstan E as will be hereinafter described. The spindles are represented as driven
in the usual way by belts f from pulleys f¹ on the countershafts F to pulleys f on the
spindles themselves. The countershafts F may be driven in the usual manner by
belts running from the main shaft to their respective pulleys F.
The endless series of gill-pin-bars G may be of any suitable kind and driven and
carried in any suitable manner. In the example represented they are supported in
endless gill-bar-chains g running on chain wheels g' on carrying shafts supported
in bearings g* on the framing A. One of the shafts g² for each series of gill-pin-bars
namely that nearest the flier is shown in the drawings that being the one through
which motion is given to the gill-pin-bars and the only one involved in my invention.
The other of said shafts not shown is driven in the usual way by the gill-bar
chains a

page_text: I will now describe the means through which the gill-pin-bars and the capstan are
driven from the flier by means of the pulley e hereinbefore mentioned on one of the
flier journals.
.
HH designate horizontal shafts one for each flier and its corresponding series of
gill-pin-bars arranged in bearings on the lower part of the framing A parallel with
the axis of the fliers and the direction of the run of the gill-pin-bars. Below these
shafts HH transverse shafts I I are arranged in suitable bearings i on the framing A.
In the example of my invention shown in Figures 1 and 2 the shafts I I are geared
to those H H by means of endless screws on the shafts H H and worm gears i¹ on
the shafts I. The shafts H H are each furnished with a pulley J to receive a
belt from the pulley e before mentioned on its respective flier and the shafts I l are
each furnished with a pulley K from which a belt & runs to a pulley 93 on the carry-
ing shaft g² of its respective series of gill-pin-bars. The belt drives the shaft H
and the endless screw h¹ drives the worm gear and the shaft I and the belt k drives
the carrying shaft of the endless chain of gill-pin-bars. It will thus be seen that the
gill-pin-bars are driven through their respective flier. The same shaft H through
which the flier drives the gill-pin-bars also serves to drive the capstan E of the flier
through a pulley on the shaft H a pulley m on the flier and a belt running from
the pulley to the pulley m.
In the example of my invention shown in Figure a third shaft L is used between
each of the two shafts H and I the said shaft being arranged parallel with 1 in
bearings n in the lower part of the framing A and being geared with the shaft H by
means of the bevel gears n' n² and geared with the shaft I by means of spur gears o ol.
The shaft H receiving motion from the flier through the pulleys e and J and belt
transmits motion to the carrying shaft g2 of the gill-pin-bars through the bevel
gears n¹ n², shaft L, spur gears o o¹, shaft I, pulleys K, belt k and pulley g³.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. The combination with the endless series of gill-pin-bars and the flier of
mechanism interposed between the flier and said series of bars for the purpose of
driving the said bars from the flier substantially as herein described.
2. The combination with the gill bar chains and their carrying shafts and the flier
of mechanism between the flier and one of the said carrying shafts whereby the move-
ment of the gill-pins is derived from the flier substantially as and for the purpose
herein described.
3. The combination with the main shaft the flier the capstan therein the gill bar
chains and one of the carrying shafts 2 for the latter of a shaft H between the flier
and capstan and one of the said carrying shafts a pulley e on the flier a pulley m on
the capstan pulleys J Z on the said shaft H belts j l between the said pulleys e J and
the said pulleys I m respectively and gearing between the said shaft H and the carrying
shaft g³ whereby the gill-pin-bars and the capstan are both driven from the flier all
substantially as herein set forth.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C., Agents for the Applicant.