Improvements in Preparing Machinery for Flax, Hemp, Jute and other Fibres.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
PROVISIONAL SPECIFICATION.
Improvements in Preparing Machinery for Flax, Hemp, Jute and
other Fibres.
We JAMES BARBOUR Machinist and JOHN BROWN foreman mechanic both of the
Falls Foundry Belfast Ireland do hereby declare the nature of this invention to be
as follows:-
These improvements relate to a new method of supplying the material to the
action of the drawing rollers in preparing machinery where gill bars are used.
Hitherto the material to be acted on has been supplied to the drawing rollers by
revolving back or retaining rollers which deliver it to the gill bars these bars penetrate
and carry the material to the drawing roller.
This mode of work makes it necessary to drive the gill bars at a quicker speed than
the surface speed of the retaining rollers in order to ensure efficient penetration of
the material by the gill pins. This quicker speed of the gill bars by forcing the pins
through the sliver destroys the parallelism of the fibre and deteriorates the sliver.
It is to avoid this fault that we have designed our improvements which consist in
removing entirely the present retaining or back rollers which regulate the quantity of
material supplied to the gill bars and drawing rollers and substituting immovable
conductors in such a way that the gill bars will draw the material into the frame
without the use of the present rollers.
By this means the material and gill bars will travel at the same speed and the gill
bars will have no tendency to destroy the parallelism of the fibre and we simplify the
machine generally.
JAMES BARBOUR,
JOHN BROWN.
COMPLETE SPECIFICATION.
; Improvements in Preparing Machinery for Flax, Hemp, Jute and
other Fibres.
We JAMES BARBOUR Machinist and JOHN BROWN Foreman Mechanic both of the
Falls Foundry, Belfast Ireland 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 improvements in the method of and means employed for
feeding or supplying the material to the action of the drawing rollers in preparing
machinery where gill bars are used.

page_text: Hitherto the material under operation has been supplied to the drawing rollers by
means of revolving back or retaining rollers, delivering it to the gill bars the pins of
which penetrate and carry the material to the drawing rollers.
This mode of operation necessitated the gill bars being driven at a quicker speed
than the surface speed of the retaining rollers in order to ensure efficient penetration
of the material by the gill pins and this quicker speed of the gill bars by forcing
the pins through the sliver destroys the parallelism of the fibre and deteriorates the
sliver.
The object of the present invention is to obviate the above faults and disadvantages
by use of simple and inexpensive improvements and dispensing altogether with the
retaining or back rollers which regulate the quantity of material supplied to the gill
bars and drawing rollers. The invention consists of stationary guides or conductors
applied to and combined with the gill bars in such a way that the gill bars will draw
the material into the frame without the use of the present retaining or back rollers
and as the material and gill bars will travel at the same speed the gill bars have no
tendency to destroy the parallelism of the fibre.
Such being the nature and object of our said invention, the following is a complete
description of same, reference being had to the accompanying drawings in which :-
Fig. 1 is a sectional side elevation of so much of a drawing frame as is requisite to
illustrate this invention.
Fig. 2 is a plan view of Fig. 1.
Fig. 3 is a plan view of the conductor or guide drawn detached and to an enlarged
scale.
Fig. 4 is an end sectional view of Fig. 3.
According to this invention at 1 is the ordinary drawing roller. 2, 2, are the gill
bars, 3 the sliver under operation and 4 and 5 are adjustable tension rods by
means of which the amount of tension on the sliver 3 can be regulated 5 is a fixed.
conductor bar or guide in which are a series of channels 6 6 each channel 6 serving as
a guide for one sliver 3 and being of width corresponding with the width or volume
of the sliver under operation, the latter is prevented from spreading out. 77 are the
ordinary sliver pulleys.
It will be seen that the revolving back rollers are entirely dispensed with as also
are their cleaning rubbers, thus the machine is more simple and inexpensive in its
construction and requires less power to drive it.
By the use of the improved stationary conductor as described the sliver 3 is fed to
or enters the gill bars 22 at the same speed that the gill bars themselves travel thus
the parallelism of the fibres of the sliver is preserved and maintained.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is :-
(1) The improvements in drawing frames or preparing machinery as herein described
and substantially as illustrated by the annexed drawings.
(2) A fixed conductor or guide bar 5 having a series of channels 6 for the purpose of
guiding the sliver direct to the gill bars 2 applied to and combined with a drawing
frame as and for the purpose herein described and substantially as illustrated by the
annexed drawings.
(3) A fixed conductor or guide bar 5 for guiding the slivers direct to the gill
bars of drawing frames as herein described and substantially as illustrated by the
accompanying drawings.
Dated this and dan 1007