IMPROVEMENTS IN MACHINERY OR APPARATUS FOR PRESSING AND TENTERING WOOLLEN AND OTHER WOVEN OR FELTED FABRICS."
Year: 1880

page_text: LETTERS PATENT to George Henry Nussey and William Bradshaw Leachman,
both of Leeds, in the County of York, for an Invention of "IMPROVEMENTS
IN MACHINERY OR APPARATUS FOR PRESSING AND TENTERING WOOLLEN AND
OTHER WOVEN OR FELTED FABRICS."
PROVISIONAL SPECIFICATION left by the said George Henry Nussey and
William Bradshaw Leachman at the Office of the Commissioners of Patents
on the 20th November 1880.
GEORGE HENRY NUSSEY and WILLIAM BRADSHAW LEACHMAN, both of Leeds,
in the County of York. "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
PRESSING AND TENTERING WOOLLEN AND OTHER WOVEN OR FELTED FABRICS."
Our present Invention refers to improvements upon our Inventions for which
Letters Patent were granted to us bearing date respectively 1st September 1869,
No. 2585, 9th August 1872, No. 2370, and 21st January 1876, No. 242. In these
Specifications we have employed plates of metal and sheets of paper or woven
fabrics, or combinations of paper with woven fabrics, having finely glazed or
polished surfaces.
The material to be pressed is passed through the machine in the manner
described in the Specifications of the Patents referred to.
In combination with the herein before mentioned plates we employ apparatus for
the operation of tentering, which operation has the effect of stretching and drying
the material previous to and simultaneously with its being passed round and
between the pressing plates.
The apparatus consists of a hollow box, which is fixed in the machine and
directly under or over the hereinbefore mentioned pressing plates. This box is
rendered capable of expansion telescopically, for the purpose of giving the required
tension to the material when in the machine. The material is attached at its
lists" to hooks provided on travelling chains or ropes, whereby the lateral tension
is obtained and the material is carried forward for the operation of pressing. The
material by preference is delivered from hot rollers to the tentering apparatus, for
the purpose of accelerating the stretching and drying operation.
T

page_text: Instead of the hereinbefore mentioned arrangement in some cases we construct
the tentering apparatus separate from the pressing machine, as hereafter described.
We mount a shaft in suitable bearings between framework; at each end of this
shaft is fitted a star wheel, the projections or arms (which may be of any required
number) on each correspond with each other. We apply tenter hooks round the
surface or periphery of each arm.
Pieces may be stretched and tentered the full length and width on this
apparatus. The material is placed on the stars and pressed onto the tenter hooks
by a travelling pressing roller actuated from suitable motive power. The
material may be stretched laterally by adjusting the star wheel on the central
shaft.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Henry Nussey and William Bradshaw Leachman in the Great
Seal Patent Office on the 20th May 1881.
GEORGE HENRY NUSSEY and WILLIAM BRADSHAW LEACHMAN, both of Leeds,
in the County of York. "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
PRESSING AND TENTERING WOOLLEN AND OTHER WOVEN OR FELTED FABRICS."
Our present Invention refers to improvements upon our Inventions for which
Letters Patent were granted to us bearing date respectively 1st September 1869,
No. 2585, 9th August 1872, No. 2370, and 21st January 1876, No. 242. In these
Specifications we have employed plates of metal and sheets of paper or woven
fabrics, or combinations of paper with woven fabrics having finely glazed or
polished surfaces.
The material to be pressed is passed through the machine in the manner described
in the Specifications of the Patents referred to.
In combination with the herein before mentioned plates we employ apparatus
for the operation of tentering, which operation has the effect of stretching and
drying the material previous to and simultaneously with its being passed round
and between the pressing plates.
The apparatus consists of a hollow box, which is fixed in the machine and
directly under or over the hereinbefore mentioned pressing plates. This box is
rendered capable of expansion telescopically, for the purpose of giving the required
tension to the material when in the machine. The material is attached at its
lists" to hooks provided on travelling chains or ropes, whereby the lateral tension
is obtained and the material is carried forward for the operation of pressing. The
material by preference is delivered from hot rollers or a stationary box to the
tentering apparatus, for the purpose of accelerating the stretching and drying
operation.

page_text: петеон.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a front elevation, Fig. 2 a side elevation, Fig. 3 a part sectional plan,
Fig. 4 a transverse section through A, B, Fig. 3, Figs. 5 and 6, 7, 8, and 9 are details
of tentering arrangement; Figs. 10, 11, and 12 are respectively a side elevation,
end elevation, and plan of stop motion.
a and b are the upper and lower press plates; c are the sheets, press plates, or
papers placed between the upper and lower plates a and b.
In combination with the herein before mentioned plates a and b, and sheets, press
plates, or papers c, or woven fabrics, or combinations of woven fabrics and paper,
having finely glazed or polished surfaces, we employ apparatus for the operation of
tentering, such operation having the effect of stretching and drying the material
previous to and simultaneously with its being passed round the sheets, press plates,
or papers c, and pressed between the plates a and b. The apparatus consists of
one or more flat hollow box or boxes, or plate or plates d, which is or are fixed in
the machine directly under or over the hereinbefore mentioned sheets, press plates,
or papers. The hollow plate or box d may be rendered capable of expansion
telescopically, but we find in experimenting by bringing the parts together in an
angular form, as shewn at e, expansion or contraction may take place by moving
the loose piece f in the direction shown by arrow, or the reverse. At the outer
edges y and h are provided the pitch chains i, enlarged views of which are shewn
at Figs. 5, 6, 7, 8, and 9; these chains i are provided with pins j, or tenter hooks
or clips, to which the material is attached at the "lists." After being attached
thereto the material is stretched by expanding the plate d in the manner herein-
before described, and afterwards carried forward in the direction shewn by arrowsk
and dotted lines passing round the sheets, press plates, or papers c, as shewn.
Motion is given to the rollers 1, which carry forward the tentering chains i
through horizontal shaft m, bevel wheels n, vertical shaft o, bevel wheels p, and spur
wheels from driving pulley r. It is necessary to stop the motion of the material
being operated upon after a required quantity has been drawn into the machine
prior to the pressing operation being performed, and for this purpose we provide
an arrangement for stopping that motion; and in order to effect this end we
employ a friction clutch 8, through which motion is transmitted to the drawing on
arrangement, this being thrown out of gear with the driving pulley 7, when
required, by means of the forked lever t, and for the purpose of greater certainty in
stopping the movement we employ two arrangements, firstly, by the upward
movement of the lower plate b. To this is attached the bracket u, carrying a
runner v; this runner as the plate b rises comes in contact with an adjustable
projecting piece w on a lever x, carried on the same shaft y as the forked lever t; by
so doing imparts the required movement thereto for withdrawing the friction
clutch s from the pulley r, and thus stop the motion of the material. Further, we
provide a screwed part 1 on the shaft m, into which works a portion of a nut 2
attached to an arm 3. On this arm 3 is provided an adjustable projecting piece 4,
and it is carried forward by the nut 2 working in the screwed part 1 during the
rotary motion of the shaft m until the projecting piece 4 comes in contact with the
projecting piece 5 on lever x, which gives the required motion to the forked lever t
for withdrawing the clutch 8. After this operation an arm 6 attached to the
bracket u on the bottom plate braises the nut 2 out of gear with the screw 1
during the upward movement of the bottom plate b, when it is immediately
withdrawn back to its original position by the assistance of the weight 7 for the
next operation.
8
The material to be operated upon before passing to the tentering process may be

page_text: conducted thereto over hot rollers or through a heated chamber. The expanding
plates are also heated by steam or other suitable means when preferred.
Having now described the nature of our said Invention, and described with the
aid of Drawings how the same may be carried into practice, we would have it
understood that we do not limit ourselves to the precise details or configuration of
the parts we have described and shewn, as the same may be varied or modified
without departing from the nature of our said Invention, but what we claim and
desire to be secured to us by Letters Patent is,-
First. The means or apparatus employed whereby woollen or other woven or
felted fabrics are tentered simultaneously with the pressing operation, substantially
as herein set forth.
Second. The combination of the various parts forming the machine, substantially
as and for purposes herein set forth.
In witness whereof, we, the said George Henry Nussey and William Bradshaw
Leachman, have hereunto set our hands and seals, this Nineteenth day of
May, in the year of our Lord One thousand eight hundred and eighty one.
Witness to the signatures of the said
George Henry Nussey and William
Bradshaw Leachman,
J. W. HARDING,
Engineer and Patent Agent,
2, East Parade,
Leeds.
U. D. NUDDEI.
(L.S.)
W. B. LEACHMAN. (L.S.)