CERTAIN IMPROVEMENTS IN MACHINERY FOR THE RAISING OR DRESSING OF CLOTH
Year: 1824

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
HIRST and JOHN WOOD, both of Leeds, in the County of York, Manufacturers,
send greeting.
WHEREAS His most Excellent Majesty King George the Fourth, by
His Letters Patent under the Great Seal of Great Britain, bearing dato at
Westminster, the Seventh day of July, in the fifth year of His reign, did,
for Himself, His heirs and successors, give and grant unto us, the said
William Hirst and John Wood, His especial licence that we, the said William
Hirst and John Wood, our exors, adiňors, and assigns, or such others as we,
the said William Hirst and John Wood, our exors, admors, or assigns, should
at any time agree with, and no others, from time to time and at all times
during the term of years therein expressed, should and lawfully might make,
use, exercise, and vend, within England, Wales, and the Town of Berwick-
upon-Tweed, our Invention of "CERTAIN IMPROVEMENTS IN MACHINERY FOR THE
RAISING OR DRESSING OF CLOTH;" in which said Letters Patent there is con-
tained a proviso obliging us, the said William Hirst and John Wood, by an
instrument in writing under our hands and seals, particularly to describe and
ascertain the nature of our said Invention, and in what manner the same
is to be performed, and to cause the same to be inrolled in His said Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said recited Letters Patent, as in and by the same,
reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, we, the said
William Hirst and John Wood, do hereby declare the nature of our said

page_text: Invention to consist in the application of a second cylinder or barrel to a
gigging machine, and in certain gear connected therewith, and herein-after
more particularly described, whereby this said second cylinder or barrel is
caused to revolve with a motion either similar to or the reverse of that given
to the other cylinder or barrel at pleasure, both cylinders or barrels being at !
work at the same side of the cloth at the same time; and also in the applica-
tion of an apparatus for drawing the cloth more tightly against, and to cover a
greater surface of the said cylinders or barrels at pleasure, without interfering
with the general motion of the gigging machine. And in further compliance
with the said proviso, we, the said William Hirst and John Wood, do hereby
describe the manner in which we perform our said Invention by the following
description thereof, reference being had to the Drawings annexed, and the
figures and letters marked thereon (that is to say):-
DESCRIPTION OF THE DRAWING MARKED No. 1.
Fig. 1 is a front view of a gigging machine. A, B, C, are ordinary drawing
rollers. D is the ordinary teasel barrel or cylinder, and E the said second
teaser barrel or cylinder which constitutes one of our said improvements, and
which is placed immediately over the ordinary barrel D. The wheels F, G,
H, J, are merely for communicating motion from the motion shaft to the
drawing rollers. K, L, M, are three small rollers, constituting another of
our said improvements; they are for the purpose of drawing the cloth tight
against the teasel barrels D, E, and are moved towards or pushed from the
said barrels by means of the shaft N, on which are endless screws and other
apparatus, herein-after more particularly described at Fig. 8.
The apparatus immediately under the letter O constitutes another of our said
improvements, and is that by which we give a similar or reverse motion to the
two cylinders D and E at pleasure, as herein-before mentioned, and which we
now more particularly describe as follows (that is to say):
a is the ordinary motion shaft communicating with the axis of the cylinder D;
and 6 is the ordinary sliding catch, moved by the handle C, for stopping or work-
ing the machinery at pleasure by throwing it in and out of gear. e, e, is another
sliding catch on a shaft d, projecting from and in one piece with the axis of the
upper cylinder E. This sliding catch is moved by the handle f, and takes
alternately as it is moved either into 9 or h. The wheels r, s, t, are three
cogged wheels, of the same size, working into each other, the middle wheel s
being introduced soley for the purpose of making the wheel r revolve the same
way as the wheel t. The wheels P and R are of the same size. R is fixed on
the motion shaft a, and P revolves loosely with g, which is a part of it, on the

page_text: shaft d. Now by this arrangement it will appear that if motion be given by
the shaft a to the three wheels r, s, t, and the catch a be moved into h, the
cylinders E and D will both move the same way; for, as P and 9 move loosely
round the shaft d, when once they are disengaged from the catch e they will
not affect the shaft d, though they will continue to be moved round by the
wheel R; but on the contrary, if the catch e be disengaged from hand moved
into g, the wheel P and g becomes fixed on the shaft d, and then the wheel R
will turn the wheel P, and consequently the cylinder E, in a contrary direction
to the cylinder D, while the wheels r, s, t, being disengaged from the catch 6,
will continue to revolve, but without affecting the shaft d. It should be
observed, in this Figure, that the bearings for the axes W, W, W, W, are
omitted, for the purpose of exhibiting the rest of the Figure more clearly.
و
Fig. 2 is a view of one end of a gigging machine, showing how the three
small wheels r, s, t, and the two larger wheels P. and R, work into one
another.
Fig. 8 is a view of the other end of a gigging machine, some of the ordinary
wheelwork being removed in order to shew more distinctly the shaft N and its
appurtenances, which constitutes another of our said improvements, and which..
we hereby more particularly describe as follows (that is to say)':-
In this Figure, as also in. Figure 2; the blue line represents the line of the
cloth. N is an upright shaft, with three endless screws upon it at 9, 9, 9;
these endless screws work into the pinion wheels T, T, T, and these pinions.
in turn work into the racks V, V, V, which racks are supported in the
rests X, X, X, X, X, X; the shaft N is turned by the handle Y, and the two
bevelled wheels Z, Z; and by this arrangement it will be seen on looking at
the Figure that the turning of the handle Y turns the shaft N, which commu-.
nicates motion, by means of the endless screws and pinion wheels, to the three
racks V, V, V; and thus, according as the handle Y is turned one way or the
other, so are the rollers K, L, M, drawn towards or pushed from the cylin-
ders E, D, for it will be seen that the axes of these rollers turned on bearings
formed in the ends of the racks V, V, V. It is necessary to observe that the
pinion wheels are on the ends of shafts which run all across the machine, and
have similar pinion wheels on the opposite end to that shewn in. this Figure,
and similar racks and rests. These last-mentioned rests are shown at X, X, X,

page_text: In the Drawing No. 2, now under description, is a front elevation of a gigging
machine. A, B, C, D, and E, are mitre wheels. A is fixed to the axis of the
upper barrel L, and B and C are fixed to the upright shaft N, which serves for
their axes; these three wheels A, B, and C, never vary their relative positions
or motions. D and E turn loosely on their axes, which axes are parts of the
shaft or axis S of the lower barrel M at F, and G is a friction hoop, both fixed
to the said last-mentioned shaft or axis; and H and J are sliding catches moved
by the handle K, which fix the mitre wheel D to the friction F, or the mitro
wheel E to the friction hoop G, at pleasure, according to the direction given to
the handle. Now by this arrangement of gear it will be seen that in the
position of the catches H and J, represented in this Figure, the mitre wheel D
is fixed to the friction hoop F, which leaves the mitre wheel E loose on the
shaft or axis S, and if motion be given to this shaft S, the mitre wheel D being
How fixed to it by means of the catch H and friction hoop F will turn the
wheels C, B, and A, and thus give the same motion to the upper barrel L
that is given to the lower barrel M, for they will both turn one way, and
the mitre wheel E will be carried round loosely on the shaft S; but if the
catch H be withdrawn from the friction hoop F, which will necessarily throw
the catch J into the friction hoop G, then the mitre wheel D will be left
to turn loosely on the shaft S; and the mitre wheel E, being thus made a
fixture on the shaft S, of course turns with it, and in its turn gives motion
to the mitre wheels C, B, A, which will then cause the upper barrel L to
turn the contrary way to the lower barrel M.
Now as we have of necessity described and drawn some parts of a gigging
machine which form no part of our said Invention, but merely for the purpose
of more clearly explaining and showing those parts which constitute our said
improvements, and which improvements alone are of our Invention, we do
therefore hereby declare that our said improvements do consist only in those
parts marked with or distinguished by the following letters (that is to say) ;-
E, K, L, M, N, P, R, 9, e, f, d, h, r, s, t, Q, T, V, X, Y, Z; and such an
application of a second cylinder or teasel barrel working on the same side
of the cloth and at the same time with the ordinary barrel as aforesaid,
and such application of apparatus as aforesaid, whereby the said second
cylinder or teasel barrel may be made to revolve in the same direction as
or an opposite direction to the ordinary barrel at pleasure, and also such
an apparatus as aforesaid for drawing the cloth towards the said cylinders
at pleasure, being, to the best of our knowledge and belief, entirely new,
and never before used in these kingdoms, we do hereby declare this to be
our Specification of the same, and that we do verily believe this our
said Specification doth comply in all respects, fully and without reserve or

page_text: disguise, with the proviso in our said herein-before in part recited Letters
Patent contained; wherefore we do hereby claim to maintain exclusive
right and privilege to our said Invention.
In witness whereof, we, the said William Hirst and John Wood, have
hereunto set our hands and seals, this Thirtieth day of December, in
the year of our Lord One thousand eight hundred and twenty-four.