IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1863

page_text: LETTERS PATENT to Joseph Schofield and John Kirk, of Rashcliffe
Iron Works, Huddersfield, in the County of York, Millwrights and
Machine Makers, and William Spivey, of the same Place, Mechanic,
So the Inmonti
T
"
Sealed the 31st March 1864, and dated the 3rd October 1863.
PROVISIONAL SPECIFICATION left by the said Joseph Schofield, John
Kirk, and William Spivey at the Office of the Commissioners of Patents,
with their Petition, on the 3rd October 1863.
We, JOSEPH SCHOFIELD and JOHN KIRK, of Rashcliffe Iron Works,
Huddersfield, in the County of York, Millwrights and Machine Makers,
and WILLIAM SPIVEY, of the same Place, Mechanic, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN LOOMS FOR WEAVING," to
be as follows:-
This Invention relates, firstly, to the picking motion, and the improvement
consists in the application of a clutch or catch box to the shaft, which actuates
the picking levers or which places them in or out of contact with the picking

page_text: tappets with suitable rods and levers for operating the same, and a tumbler
for holding the said clutch in either position as required, whereby the attendant
can instantly stop the action of the picking motion without stopping the
other moving parts of the loom.
Secondly, the Invention relates to the jacquard engine, or indicating appa-
ratus, and the improvement consists in having the cylinder which actuates or
indicates the action of the change shuttle boxes running loose on the shaft of
the pattern cylinder, or so arranged that each may be "lagged "back indepen-
dently of the other when required.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Schofield, John Kirk, and William Spivey in the
Great Seal Patent Office on the 2nd April 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH
SCHOFIELD and JOHN KIRK, of Rashcliffe Iron Works, Huddersfield, in the
County of York, Millwrights and Machine Makers, and WILLIAM SPIVEY,
of the same Place, Mechanic, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of October, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said Joseph Schofield, John Kirk, and William Spivey, Her special
licence that we, the said Joseph Schofield, John Kirk, and William Spivey,
our executors, administrators, and assigns, or such others as we, the said
Joseph Schofield, John Kirk, and William Spivey, our executors, administra-
tors, 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 "IMPROVEMENTS IN LOOMS FOR WEAVING," upon the
condition (amongst others) that we, the said Joseph Schofield, John Kirk,
and William Spivey, our executors or administrators, by an instrument in
writing under our, or their, or one of our or their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and

page_text: 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 we, the said Joseph Schofield, John Kirk, and
William Spivey, do hereby declare the nature of our said Invention, and
in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement, and the accompanying
Drawings (that is to say):-
:-
This Invention relates, firstly, to the picking motion, and the improvement
consists in the application of a clutch or catch box to the shaft which actuates
the picking levers, or which places them in or out of contact with the picking
tappets with suitable rods and levers for operating the same, and a tumbler
or other similar means for holding the said clutch in either position as required,
whereby the attendant can instantly stop the action of the picking motion
without stopping the other moving parts of the loom.
Secondly, the Invention relates to the jacquard engine or indicating appa-
ratus, and the improvement consists in having the cylinder constructed in two
parts forming two separate cylinders one running loose on the shaft of the
other, or so arranged that each may be "lagged back" or turned in the reverse
direction independently of the other when required.
In order that this Invention. may be clearly understood we have given
reference to two Sheets of Drawings illustrating parts of an ordinary woollen
loom, as constructed according. to. the Specification of a Patent.granted to
Thomas, Edwin, and Joseph Thornton, dated 10th September, A.D. 1860,
No. 2184, with our improvements applied thereto..
Fig. 1 is a back elevation;. Fig. 2, an end elevation, and Fig. 3 a.sectional
plan of a portion thereof.
A is a diagonal shaft which by means of a train of gear wheels receives
motion from the crank shaft B, and which by star-wheel motion drives the
cylinder C of the jacquard engine forward or backward according as the loom
is caused to run forward or.backward by means of the reversing gear D; and
E is a slide rod, which is actuated through the medium of the shaft F, with
the rod and lever.in connection by. the jacquard engine for placing the picking
levers in contact with the. picking. tappets when. required, all of which parts
are fully explained and illustrated in the Specification of Patent herein-before
referred to.
The first part of our. improvements is the clutch box G applied to the shaft.

page_text: F for connecting and disconnecting the lever El, which fits loosely on the
shaft, one part of the clutch being fixed on the shaft, and the other part on the
lever. The clutch is held in gear by means of a spiral spring I, and is forced
out of gear by a forked lever J, which is carried on a stud fixed to the loom
framing and actuated by a tumbler or short lever K, fixed on one end of a
shaft L, having a lever M at the other end, to which is attached a rod N
carried along the front of the loom to be operated by the attendant when it is
required to stop the picking action. It will be seen that the picking levers O
are held out of contact with the picking tappets P by springs Q, attached to
the levers R, and placed in contact by the rod E being caused to slide or
move endwise in one or the other direction, and hereby acting upon one or
other of the levers R. Also that the lever H is operated continuously when
the loom is in action, whether in forward or backward direction, and which
would therefore operate the picking levers if the lever H was fast on the
shaft F as heretofore; but by means of the clutch box G, which may be thrown
out of gear by the attendant, such action upon the picking levers may be
suspended although the loom may continue in action, and the tumbler or
lever K, having passed the incline J¹ on the lever J, will rest on the flat or
notch J, and thereby hold the clutch lever H out of gear with the shaft F
until reversed by the attendant.
The second part of our Invention will be readily understood by reference to
Figs. 4 and 5, which are a side view and section of the jacquard cylinder as
constructed by us in two parts. The part C¹ carries the cards or lags for
indicating the working of the healds, and the part C2 carries the lags for
indicating the action of the picking apparatus; C3 is the star wheel by which
the part C is turned or receives intermittent motion from the diagonal shaft
A, the part C¹ being turned by hookers or catches S, and may be reversed in
action and lagged back by the handles T and U in the usual manner, thereby
enabling the attendant to set or adjust the picking, and the pattern lags
relatively to each other with facility.
Having thus described the nature of our said Invention, and the manner in
which the same is performed or carried into practical effect, we would have it
understood that we do not restrict ourselves to the precise details of con-
struction or arrangement of the parts herein set forth, but what we claim as
of our Invention is,-
Firstly, the application of a clutch or catch box or a similar means for
connecting the picking motion or picking apparatus with and disconnecting it

page_text: from the jacquard or indicating apparatus, thereby to stop or suspend the
picking without stopping the other moving parts of the loom.
Secondly, the constructing of the jacquard cylinder in two parts, and the
use thereof, in manner and for purposes substantially as herein explained.
In witness whereof, I, the said William Spivey, for and on behalf of
myself and the said Joseph Schofield and John Kirk, have here-
unto set my hand and seal, this Thirty-first day of March, One
thousand eight hundred and sixty-four.
Signed, sealed, and delivered by the
within-named William Spivey in
the presence of
Wx. TASKER,
Patent Agent,
Halifax.
WILLIAM SPIVEY. (L.S.)