Improvements in Machines for Preparing Flax, Hemp, Jute, Wool, and other Fibres.
Year: 1890

page_text: Date of Application, 31st May, 1890
Complete Specification Left, 25th Feb., 1891-Accepted. 28th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Machines for Preparing Flax, Hemp, Jute, Wool,
and other Fibres.
We, ARTHUR TREDGOLD LAWSON, Engineer, FREDERICK WILLIAM LAWSON,
Engineer, and SOMERVILLE DEAR, Manager, all of the Hope Foundry, Leeds,
in the County of York, do hereby declare the nature of this invention to be as
follows:-
The improvements relate to machines for preparing flax, hemp, jute, wool and
other fibres where chains are used to carry the fallers or gill bars and consists of
having the links in which the gill bars are held made with U like openings at the
top into which the necks of the gill bars are received. This enables us to take out
any bar at the top of the chain, being the most suitable place as the top of the
links are open.
To keep the bars in their places in the openings in the links we
put guides around the chain covering the necks of the bars. In these guides at the
top there can be loose pieces which can be, taken off when the bars have to be
removed. In other respects the links are as before made, thus retaining the
strength of the chain and having the advantage of the gill bars being all linked
together.
Sometimes we make the links with loose caps screwed on the top, these caps can
be removed and any bar can be taken out.
The bars are controlled by dogs at their ends working upon stationary cam guides
as heretofore.
Deted this 31st day of May 1890
A. T. LAWSON.
F. W. LAWSON.
SOMERVILLE DEAR.
Improvements in Machines for Preparing Flax, Hemp, Jute, Wool,
and other Fibres.
We, ARTHUR TREDGOLD LAWSON, Engineer, FREDERICK WILLIAM LAWSON,
Engineer, and SOMERVILLE DEAR, Manager, all of the Hope Foundry, Leeds, in
the County of York, 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 :—
The improvements relate to machines for preparing flax, hemp, jute, wool and
other fibres where chains are used to carry fallers or gill bars and consists of having
the links in which the gill bars are held made with Ŭ like openings at the top into
which the necks of the gill bars are received. - This enables us to take out any bar
at the top of the chain, being the most suitable place, as the top of the links are
open. To keep the bars in their places in the openings in the links we put guides
around the chain covering the necks of the bars. In these guides at the top there
In
can be loose pieces which can be taken off when the bars have to be removed.
other respects the links are as before made, thus retaining the strength of the chain
and having the advantage of the gill bars being all linked together.

page_text: be removed and any bar can be taken out.
The bars are controlled by dogs at their ends working upon stationary cam guides
as heretofore.
In order that our said invention may be fully understood and readily carried into
effect we will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure I is an elevation of one of the endless chains and guides.
Figure I represents the moveable piece guide cover, corresponding with
Figure I.
Figure III is an inside sectional view of the guide, showing the joint formed
between the upper and lower parts of the guide.
Figure IV is a back elevation of a part of one of the gill bars with chain and
dog.
Figure V is a plan showing part of four gill bars, with the open chain links and
dogs.
Figure VI is an end view of the parts represented in Figure V.
Figure VII shows part of a chain with links, having a separate cap for cach
link.
Figure VIII end view of one of the links.
Figure IX is a plan of links showing the cap dovetailed and screwed into each
separate link as in Figures VII and VIII.
Figure X is a perspective view of the cap.
Figure XI is a longitudinal section to illustrate the general arrangement of the
drawing frame.
A A designate the chain links and a the U or open part of the link for carrying
the gill bars, C C the chain wheels or carriers. D D the chain link pius which
gear into the carriers on each side of the chain, E E the chain carrier shafts,
& the guide round the chain keeping or guiding the gill bars within the U or open
part of link.
The guide cover F is shown in Figure II.
L are the gill bars, and M. the gills. N are the dogs on the end of the
gill bars, the alternate bars have their guides at opposite ends, the cams are not
shown.
In Figures VII, VIII and IX A* A* are the separate caps with which the links
may be provided; cach cap is held down by a screw at one corner. When these
caps are used the guides G may be dispensed with.
In Figure XI OO are rollers by which the fibre in the form of slivers enters on
the right side of the machine, passing under and over the rollers as indicated. The
slivers are thus presented to the teeth carried by the endless chains. The teeth
travel at a higher speed than the surfaces of the rollers O, the fibre having been
straightened and dressed by the teeth passing amongst it; reaches the rollers P P
and QQ. Those rollers travel at a higher surface speed than the teeth and by
their action the fibre is further straightened and dressed; the slivers also are drawn
out or elongated.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1. A chain gill with U form or open recesses in the links in which the necks of
the gill bars are held and with stationary guides retaining the gill bars in place
substantially as described.
2. A chain gill with U form or open recesses in the links in which the necks of

page_text: the gill bars are held and with covers fixed upon the links retaining the gill bars in
place substantially as described.
3. Chain gills substantially as herein described.
A. T. LAWSON.
F. W. LAWSON.
S. DEAR.