IMPROVEMENTS IN THE MANUFACTURE OF HEALDS FOR WEAVING AND IN HEALD SHAFTS
Year: 1872

page_text: LETTERS PATENT to Henry Bernoulli Barlow, the younger, of Man-
chester, in the County of Lancaster, Engineer, for the Invention of
** IMPROVEMENTS IN THE MANUFACTURE OF HEALDS FOR WEAVING AND IN
HEALD SHAFTS."-Partly a communication from abroad by Darius
Chase Brown, Lowell, Massachusetts, in the United States of
America.
PROVISIONAL SPECIFICATION left by the said Henry Bernoulli Barlow
at the Office of the Commissioners of Patents, with his Petition,
on the 14th March 1872.
I, HENRY BERNOULLI BARLOW, the younger, of Manchester, in the
3 County of Lancaster, Engineer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF HEALDS FOR
WEAVING AND IN HEALD SHAFTS," partly a communication to me from

page_text: abroad by Darius Chase Brown, of Lowell, Massachusetts, in the United
States of America, and partly my own Invention, to be as follows:-
This Invention consists in making wire healds of wire plated or tinned
with any non-corrosive metal which prevents such healds from oxidation
or rust; it is particularly adapted to the healds patented by Darius
Chase Brown, September 9th, 1867, No. 2551, but it is equally advan-
tageous when applied to all healds made of metal. The wire is made
more smooth by being tinned.
My improvements in heald shafts consist in making them entirely of
metal, and in order to make them light and strong I form the top and
bottom staves hollow of a single piece of metal, or of two or more pieces
rivetted or otherwise secured together. The top and bottom staves
are connected together at the ends by metal rods, to which the rods for
supporting the healds are screwed or rivetted. These rods are stayed to
the top and bottom staves by adjustable hooks, the ends of which pass
through longitudinal slots in the staves.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Bernoulli Barlow in the Great Seal Patent
Office on the 13th September 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
BERNOULLI BARLOW, the younger, of Manchester, in the County of
Lancaster, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of March, in the year of our
Lord One thousand eight hundred and seventy-two, in the thirty-fifth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Henry Bernoulli Barlow, the younger, Her
special licence that I, the said Henry Bernoulli Barlow, the younger,
my executors, administrators, and assigns, or such others as I, the said
Henry Bernoulli Barlow, the younger, 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

page_text: Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "IMPROVEMENTS IN THE MANUFACTURE OF HEALDS
FOR WEAVING AND IN HEALD SHAFTS," partly a communication to me from
abroad by Darius Chase Brown, of Lowell, Massachusetts, in the United
States of America, and partly my own Invention, upon the condition
(amongst others) that I, the said Henry Bernoulli Barlow, the younger,
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 within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said Henry Bernoulli Barlow, the younger,
do hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement (that is to say) :-
This Invention consists in making wire healds of wire plated or tinned
with any non-corrosive metal which prevents such healds from oxidation
or rust; it is particularly adapted to the healds patented by Darius
Chase Brown, on the Ninth day of September One thousand eight
hundred and sixty-seven, Number 2551, but it is equally advantageous
when applied to all healds made of metal. The wire is made more
smooth by being tinned.
The improvements in heald shafts consist in making them entirely of
metal, and in order to make them light and strong I form the top and
bottom staves hollow of a single piece of metal or of two or more
picces rivetted or otherwise secured together. The top and bottom
staves are connected together at the ends by metal rods or bands, to
which the rods for supporting the healds are screwed or rivetted. These
rods are stayed to the top and bottom staves by adjustable hooks, the
ends of which pass through longitudinal slots in the staves or otherwise.
And in order that this Invention may be fully understood and readily
carried into operation, I will proceed to describe the manner of per-
forming the same.
The first part of this Invention, which relates to the manufacture of
healds for weaving, consists in making wire healds of wire on which a

page_text: coating of tin or other non-corrosive metal has been deposited by any
of the well-known processes; this coating of tin or other metal may be
applied to the wire before or after the wire has been manufactured into
wire healds. The advantages of thus coating the wire is to prevent
oxidation or rust, to render the surface more smooth, and to improve
the appearance of the healds.
The improvements in heald shafts forming the second part of the
Invention consist in making them entirely of metal in order to reduce
the depth and increase the durability, and the mode of construction is
shewn on the accompanying Drawing, in which Fig. 1 is one of the
improved metal heald shafts; Fig. 2 represents the heald shaft drawn
full size; Fig. 3 is an end view of the heald shaft; Fig. 4 is a section
through the heald shaft at the line A, B, on Fig. 5, which is a plan of
part of the heald shaft.
The top and bottom staves of the heald shaft consist each of two
pieces of sheet iron or other metal marked a and b, these pieces of metal
are bent to the required form in a mould or by other suitable me-
chanism, and they are secured together by rivets or otherwise to the
pieces a of the top and bottom staves are rivetted the steel or other
metal bands c, c, a washer being inserted between the ends of the pieces a
and the bands c, c, as shewn in Fig. 3, to keep the bands at the proper
distance from the centre of the shaft. To the bands c are screwed or
otherwise fastened the rods d, d, on which the wire healds e are strung.
The rods & are stayed to the top and bottom staves by the hooks f,
which are adjustable lengthwise of the staves by being passed through
longitudinal slots formed in the staves, as shewn in Fig. 5. The cords g
for connecting the shafts to the jacks pass through holes in the flanges
of the staves, as shewn in Figs. 1 and 2.
The top and bottom staves of the heald shaft may each be made of a
single picce of bent sheet metal, as shewn in Figs. 6 and 7, or the shape
of the metal staves may be otherwise modified, and I wish to observe
that the metal shafts above described may be applied to wire healds of
every description and to healds made of heald yarn.
Having thus stated the nature of the Invention, and the mode of
performing the same, I declare that I claim,—

page_text: First. Manufacturing wire healds of wire plated or coated with tin
or other metal for the purposes described.
And, Secondly. Making heald shafts of metal, as shewn and described.
In witness whereof, I, the said Henry Bernoulli Barlow, the
younger, have hereto set my hand and seal, this Twelfth day of
September One thousand eight hundred and seventy-two.
H. B. BARLOW, JR. (L.S.)