CERTAIN IMPROVEMENTS IN LOOMS FOR WEAVING."
Year: 1859

page_text: LETTERS PATENT to Edwin Hardon, of Stockport, in the County of
Chester, Manufacturer, for the Invention of "CERTAIN IMPROVEMENTS IN
LOOMS FOR WEAVING."
PROVISIONAL SPECIFICATION left by the said Edwin Hardon at the.
Office of the Commissioners of Patents, with his Petition, on the.
22nd August 1859.
I, EDWIN HARDON, of Stockport, in the County of Chester, Manufacturer, do
hereby declare the nature of the said Invention for "CERTAIN IMPROVEMENTS.
IN LOOMS FOR WEAVING," to be as follows:-
My improvements consist, firstly, in an improved combination or arrange-.
ment of parts for raising a part of the healds while the others are sinking to
form the shed. In performing my Invention I connect the healds to the
toothed segment levers now commonly used, and I connect these levers to
cords passing over pulleys suspended to roller shafts supported in spring bear-
ings, similar to those for which Letters Patent were granted to me and to
Joseph Henry, on the 2nd day of October 1856.
In the present arrangement the roller shafts are placed at right angles to
the healds, and in some cases these roller shafts may be supported in ordinary
fixed bearings, and the cords or straps for connecting the segment levers and

page_text: healds to the roller shafts may then be made of vulcanized india-rubber
or other elastic material, as described and claimed in the Patent above
referred to.
Another part of my Invention consists is an improved mode of commu-
nicating motion to the shedding apparatus, for which Letters Patent were
granted to me and to Joseph Henry, in June 1856, and it consists in the appli-
cation of a lever with a curved slot, in which works a crank pin fixed to the
crank shaft or other part of the loom. This slot lever gives motion to the
levers by which the hooks connected to the healds are drawn down, or it is
otherwise connected to the shedding motion; the object of the curved slot in
the lever being to produce the requisite dwell in the shed. This part of iny
Invention may be applied to other shedding apparatus.
SPECIFICATION filed in pursuance of the conditions of the Letters Patent,
and of an Order of the Lord Chancellor, by the said Edwin Hardon in
the Great Seal Patent Office on the 28th February 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWIN
HARDON, of Stockport, in the County of Chester, Manufacturer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of August, in the year of our
Lord One thousand eight hundred and fifty-nine, in the twenty-third year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Edwin Hardon, Her special licence that I, the said Edwin
Hardon, my executors, administrators, and assigns, or such others as I,
the said Edwin Hardon, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "CERTAIN
IMPROVEMENTS IN LOOMS FOR WEAVING," upon the condition (amongst others)
that I, the said Edwin Hardon, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office on or before the Twenty-ninth day
of February, One thousand eight hundred and sixty.

page_text: NOW KNOW YE, that I, the said Edwin Hardon, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement (that is to say) :-
The nature of my Invention consists in an improved combination or
arrangement of parts for raising a part of the healds while the others are
sinking to form the shed. In performing my Invention I connect the healds
to the toothed segment levers now commonly used, and I connect these levers
to cords passing over pulleys suspended to roller shafts supported in spring
bearings, similar to those for which Letters Patent were granted to me and
to Joseph Henry, on the Second day of October, One thousand eight hundred
and fifty-six, No. 2805.
In the present arrangement the roller shafts are placed at right angles to
the healds, and in some cases the roller shafts may be supported in ordinary
fixed bearings, and the cords or straps for connecting the segment levers and
healds to the roller shafts may then be made of vulcanized india-rubber or
other elastic material, as described and claimed in the Patent above referred to.
And in order that my Invention may be fully understood and readily carried
into effect, I will proceed to describe the accompanying Sheet of Drawings,
reference being had to the figures and letters marked thereon. Fig. 1 is
an end elevation, and Fig. 2 a. front view of a loom to which my improve-
ments are applied. My. Invention consists in an improved combination or
arrangement of parts for raising a part of the healds while the others are
sinking to form the shed; and it is particularly applicable to looms furnished
with the improved shedding motion described in the Specification of Letters
Patent granted to me in conjunction with Joseph Henry, on the Twenty-
fourth day of June, One thousand eight hundred and fifty-six, No. 1477, but
it may be applied to looms in which the healds are worked by other combi-
nations of parts. a, a, are the healds, connected by cords to the toothed
segment levers b, b, which are similar to those now commonly used in certain
descriptions of looms; to the segment levers b, b, are connected cords passing
over pulleys c, c, and c², c¹, suspended to the roller shafts d, d, supported in the
bearings e, e, which are acted upon by springs f, f, similar to those for which
Letters Patent were granted to me in conjunction with Joseph Henry, on the
Second day of October, One thousand eight hundred and fifty-six, No. 2305.
In the arrangement shewn, the roller shafts d, d, are placed at right angles to
the healds a, as by this means a greater number of healds can be more con-
veniently worked than in the usual mode of placing them. In some cases a
single roller shaft may be placed in a diagonal position or in a line with the

page_text: heads as now customary. The roller shafts d, d, may also be supported in the
ordinary fixed bearings, and the cords or straps for connecting the segment
levers and healds to the roller shafts may then be made of vulcanized india-
rubber or other elastic material, as described and claimed in the Specification
of the Patent No. 2305, above referred to.
The Drawing, Fig. 1, represents the shed open, that is to say, some of the
healds are raised while others are sunk, to divide the warp for the passage of
the shuttle. The requisite healds.are selected according to the patent to be
Iwoven by the pegs on the pattern chain 9, which pegs out on bent wires h, to
which the healds are connected by cords, as shewn best in Fig. 2. The ends
of the bent wires h are hooked upwards, and they are pressed down by the
levers i and j, which are similar to those marked n and n', in Figs. 2, 3, and 6
of the Specification of the Patent No. 1477, above referred to.
In the Provisional Specification filed by me on the Twenty-second August,
One thousand eight hundred and fifty-nine, I stated that my Invention-con-
sisted also in communicating motion to the shedding apparatus by means of a
lever with a curved slot. Since filing the said Provisional Specification, I
have discovered that this curved slot is not new. I therefore make no claim
thereto.
Having thus stated the nature of my Invention, and described the manner
of performing the same, I declare that I claim,-
First, the combination of the parts marked a, b, c, c, d, e, and f, as shewn
and described.
Secondly, the placing the roller shafts of the shedding motion at right angles
to the healds, as shewn and described.
In witness whereof, I, the said Edwin Hardon, have hereunto set
my hand and seal, this Seventeenth day of February, in the year
of our Lord One thousand eight hundred and sixty.
EDWIN HARDON. (L.S.)
EDWIN HARDON. (L.S.)