Year: 1887

page_text: Date of Application, 4th Apr., 1887
Complete Left, 4th Jan., 1888
Complete Accepted, 10th Feb., 1888
I JAMES PARKINGTON of Saint Pauls Street Low Moor Clitheroe in the County of
Lancaster Loom Tackler do hereby declare the nature of this invention to be as
follows:-
This invention relates to the healds used for opening or shedding the warp threads
in looms for weaving, the object of the invention being to take all strain off the
healds and thus to diminish the wear and tear and to increase their durability whereby
a very considerable economy in the cost of maintaining the healds in a state of
efficiency is effected.
The healds are usually made of two bars (vizt. a top and bottom bar) of wood or
other material and these two bars are connected together solely by the healds
themselves which are made usually of cord or twist but sometimes of wire and are
provided at or near the centre with the loops, eyes or mails, through which the warp
threads are drawn. To the top and bottom bar are attached cords, bands or straps
which are connected to the jacks and treadles whereby the healds are raised and
lowered to shed the warp.
It will thus be evident that all the strain of raising and lowering the warps is
born by the healds themselves and this causes much wear and tear and frequent
breaking at the point where the loop or eye is formed or attached which is the weakest
point and the part where the greatest amount of friction takes place.
In order to obviate this defect I connect the top and bottom bars of each heald
together by one or more metal rods or wires which will thus carry all the weight in
lifting and bear all the strain in lowering the warps. The healds will thus remain quite
slack will not be subject to any strain whatever and their durability will therefore bo
very considerably increased.
Wood or strong cords strained tightly may be used instead of metal rods or wires
to take the strain off the healds but I prefer to use the latter and to render the same
adjustable by screwing one end and placing a nut thereon so that its length can
be adjusted so as to give sufficient tension to keep the heald straight without straining
them.
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicant.

page_text: COMIDELE DI CLICATION
An Improvement in Healds for Weaving.
I JAMES PARKINGTON of Saint Paul's Street Low Moor Clitheroe in the County of
Lancaster Loom Tackler 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 the healds used for opening or shedding the warp threads
in looms for weaving, the object of the invention being to take all strain off the healds
and thus to diminish the wear and tear and to increase their durability whereby a very
considerable economy in the cost of maintaining the healds in a state of efficiency
is effected.
The healds are usually made of two bars (vizt. a top and bottom bar) of wood or
other material, and these two bars are connected together solely by the healds
themselves which are made usually of cord or twist, but sometimes of wire and are
provided at or near the centre, with the loops, eyes, or mails, through which the warp
threads are drawn. To the top and bottom bar are attached cords bands or straps
which are connected to the jacks and treadles whereby the healds are raised and
lowered to shed the warp.
It will thus be evident that all the strain of raising and lowering the warps is borne
by the healds themselves and this causes much wear and tear and frequent breaking
at the point where the loop or eye is formed or attached, which is the weakest point
and the part where the greatest amount of friction takes place.
In order to obviate this defect I connect the top and bottom bars of each heald
together by one or more metal rods or wires which will thus carry all the weight
in lifting and bear all the strain in lowering the warps. The healds will thus remain
quite slack, will not be subject to any strain whatever and their durability will
therefore be very considerably increased.
The annexed drawing shows the two ends of a heald with my improvement applied
thereto, a, a is the top bar, a', a¹ the bottom bar, and b, b are the metal rods for
bearing the strain when raising or lowering the warps.
Wood or strong cords strained tightly may be used instead of the metal rods or
wires b, to take the strain off the healds, but I prefer to use the latter and to
render the same adjustable by screwing one end and placing a nut c thereon, as
shown on the drawing, so that its length can be adjusted so as to give sufficient
tension to keep the healds straight without straining them.
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
The improvement in healds for weaving substantially as hereinbefore described.