IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1869

page_text: LETTERS PATENT to William Henry Hayhurst, of Blackburn, in the
County of Lancaster, Weaver, for the Invention of "IMPROVEMENTS
IN LOOMS FOR WEAVING."
Sealed the 6th August 1869, and dated the 12th February 1869.
PROVISIONAL SPECIFICATION left by the said William Henry Hayhurst
at the Office of the Commissioners of Patents, with his Petition,
on the 12th February 1869.
WILLIAM HENRY HAYHURST, of Blackburn, in the County of
Lancaster, Weaver, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN LOOMS FOR WEAVING," to be as follows:-
This Invention relates to means of and apparatus for stopping the
loom when from any cause one or more threads of warp are broken,
which I effect by means of two brackets fixed to the breast beam of the
loom, one being near the weft fork and hammer, the other on the other
side of the loom. The brackets are connected by means of a rod along
which two or more "warp forks" are caused to pass "to and fro" attross
the piece by means of a cord attached to the warp forks passing over

page_text: pullies on the brackets above mentioned, and weights attached to the
cord.
Motion is imparted to the apparatus as follows:-On the tappet shaft
is a small wheel gearing with a carrier; the latter imparts motion to a
third wheel, to the arm or rim of which is fixed a stud and bowl, on
which bowl rests a lever, one end working on a stud fixed to a cross rail,
the other end being attached to the cord and which works the warp
forks. On each revolution of the wheel the lever and weight on one
side of the loom are raised and the warp forks cross to the other side of
the piece; on the bowl having passed its greatest lift the lever resting
thereon will descend and the warp forks recross the piece. A catch
having a projecting finger resting on the cord is by the tension thereof
held clear of the "hammer" so long as the warp remains perfect, but
when the warp is broken the warp forks catching the loop or end are
interrupted in their passage, and the weight cord becomes slack, the
finger resting thereon and the catch (to which the finger is attached)
falls, and coming in contact with the hammer stops the loom in the same
way as the "weft fork." The warp forks above described work in front
of the temple roller and occupy very little space, and do not in any way
interfere with the beat-up or action of the reed.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Henry Hayhurst in the Great Seal Patent
Office on the 11th August 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HENRY HAYHURST, of Blackburn, in the County of Lancaster, Weaver,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of February, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Henry Hayhurst, Her special
licence that I, the said William Henry Hayhurst, my executors, admi-
nistrators, and assigns, or such others as I, the said William Henry
Hayhurst, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter

page_text: during the term therein expressed, should and lawfully might makė,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN LOOMS FOR WEAVING," upon the 'condition (amongst
others) that I, the said William Henry Hayhurst, 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 William Henry Hayhurst, do hereby
declare the nature of my said 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 means of and apparatus for stopping the
loom when from any cause one or more threads of warp are broken,
which I effect by means of two brackets fixed to the brest beam of the
loom, one being near the weft fork and hammer, the other on the other
side of the loom. The brackets are connected by means of a rod along
which two or more "warp forks" are caused to pass "to and fro" across
the piece by means of a cord attached to the warp forks passing over
pullies on the brackets above mentioned, and weight attached to the
cord.
Motion is imparted to the apparatus as follows:-On the tappet shaft
is a small wheel gearing with a carrier; the latter imparts motion to a
third wheel, to the arm or rim of which is fixed a stud and bowl, on
which bowl rests a lever, one end working on a stud fixed to a cross rail,
the other end being attached to the cord and which works the warp
forks. On each revolution of the wheel the lever and weight on one
side of the loom are raised and the warp forks cross to the other side of
the piece; on the bowl having passed its greatest lift the lever resting
thereon will descend and the warp forks recross the piece. A catch
having a projecting finger resting on the cord is by the tension thereof
held clear of the "hammer" so long as the warp remains perfect, but
when the warp is broken the warp forks catching the loop or end are
interrupted in their passage and the weight cord becomes slack, the
finger resting thereon and the catch (to which the finger is attached)

page_text: falls, and coming in contact with the "hammer" stops, the loom in the
same way as the "weft fork." The warp forks above described work in
front of the temple roller and occupy very little space, and do not in any
way interfere with the beat-up or action of the reed.
Such being the nature and object of this my said Invention I will
now proceed to prescribe the same fully; and in order that the same may.
be distinctly understood, I have hereunto annexed a Sheet of Drawings.
illustrative thereof, and have marked the same with Figures and letters:
of reference, the same letter referring to the same part in the various.
Figures.
Figure 1 is a sectional elevation of such parts of a loom as are.
necessary to shew the application of my improvements; Figure 2 is a
plan view; and Figures, 3, and 4 are detail views on an enlarged scale..
A shews brest beam of the loom to which the brackets B, B, are
secured by bolts; C is a rod connecting the brackets and along which
the "warp forks" or creepers Ẹ work or traverse on the surface of the
cloth in front of the temple roller E. The traverse of the creepers is
effected by means of the pinion wheel F on the tappet shaft and
carrier Factuating the plate wheel F to an arm, or to the rim, of which.
is fixed a stud and bowl G; on this bowl rests, the lever H, one end
being connected to the cross rail,, the other end being attached to the
cord Ķ. The cord passes over the pullies L, L, and through holes, or is
otherwise secured to, the warp forks. or creepers E, and over pullies I, I,
at the other side of the loom and a weight attached at the end thereof.
On each revolution of the wheel F the lever and cord are raised, and
the warp, forks. cross or traverse to the other side of the piece;
when the bowl has passed, its highest lift the lever resting thereon
descending and the warp. forks recross the piece.. At M is shewn a, pin
resting on the cord and supporting the catch N clear of the section
hammer P; should a, warp, thread break the loose end a part thereof.
forms a loop, or, tangled mass, in which the hooks of one of the warp.
forks catch and the weight cord becomes. slack, the finger or pin M
resting thereon and, the catch N fall, coming, in contact with the section.
hammer; the latter pushes back the lever S, to which it is. attached, and
throws out the spring handles T, and thus. transfers. the strap from the
fast to the loose pully and stops the loom..
Having thus fully described and ascertained the nature and particulars:
of this my said Invention, together with the manner in which the same

page_text: is to be performed or carried into practical effect, I would have it
distinctly understood that I do not claim the warp forks or creepers
separately; but what I do claim is, the construction and arrangement of
the levers H and S and cord K with the catch N, as and for the purpose
herein described and illustrated, or any mere modification thereof acting
in substantially the same or in a similar manner.
In witness whereof; I, the said William Henry Hayhurst, have
hereunto set my hand and seal, this Seventh day of August, in
the year of our Lord One thousand eight hundred and sixty-
nine.
WILLIAM HENRY HAYHURST. (L.S.)
Witness
JAMES BRIGGS,
Cotton Spinner,
Blackburn..