IMPROVEMENTS IN CRISPING OR DOUBLING TEXTILE AND OTHER FABRICS, AND IN THE MACHINERY OR APPA- RATUS EMPLOYED THEREPOR
Year: 1874

page_text: LETTERS PATENT to George Fyfe Elder, of Lochce, in the County
of Forfar, North Britain, Managing Engineer of the Camperdown
Linen Works, for the Invention of "IMPROVEMENTS IN CRISPING OR
DOUBLING TEXTILE AND OTHER FABRICS, AND IN THE MACHINERY OR APPA-
RATUS EMPLOYED THEREPOR."
Sealed the 10th July 1874, and dated the 23rd February 1874..
PROVISIONAL SPECIFICATION left by the said George Fyfe Elder
at the Office of the Commissioners of Patents, with his Petition,
: on the 23rd February 1874.
I, GEORGE FYFE ELDER, of Lochee, in the County of Forfar, North
Britain, Managing Engineer of the Camperdown Linen Works, do
hereby declare the nature of the said Invention of "IMPROVEMENTS IN
CRISPING OR DOUBLING TEXTILE AND OTHER FABRICS, AND IN THE MACHINERY OB
APPARATUS EMPLOYED THEREFOR," to be as follows, that is to say :-
This Invention, which relates to the crisping or doubling of textile
and other fabrics, felt, or paper consists of a novel arrangement or con-

page_text: struction of mechanism by which the crisping or doubling operation is
effected more expeditiously and better than by the means hitherto
employed.
The mechanism consists of a framing, at one end of which are rails
for maintaining the fabric at the required degree of tension. One of
these tension rails is provided with guides, whose distance apart is from
time to time adjusted to the width of fabric to be crisped or doubled,
their purpose being to keep the fabric at the centre of the machine. The
fabric on having passed the tension rails is led over a curviform saddle
of wood or metal of a wide rounded form at one end, but gradually
becoming narrower along the centre or top, and flat on the sides, so that
the fabric in passing over it is gradually crisped or doubled; on passing
from which it is drawn over and between inclined or angular bars, and
thence between rollers, the action of which pulls the fabric through the
machine. On leaving the rollers the fabric is in the finished, crisped, or
doubled state.
At the narrower end of the curviform saddle a roller is placed, over
which an endless woollen or other belt passes, the object of which is
to enable the attendant by operating a hand wheel to move the belt, and
along with it the fabric, as may from time to time be required for
adjusting it to the desired position on the saddlo and the inclined
angular bars in the event of its becoming shifted.
The machine is provided with fast and loose nulleys for driving it.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Fyfe Elder in the Great Seal Patent Office 25
on the 20th August 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
FYFE ELDER, of Lochce, in the County of Forfar, North Britain,
Managing Engineer of the Camperdown Linen Works, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her 30
Letters Patent, bearing date the Twenty-third day of February, in the

page_text: of wood or metal of a wide rounded form at one end, but gradually;
becoming narrower along the centre or top, and 'flat on the sides, so that
the fabric on passing over it is gradually crisped or doubled, on passing
from which it is drawn over and between inclined or angular bars, and
thence between rollers, the action of which pulls the fabric through the 5
machine. On leaving the rollers tho fabric is in the finished, crisped, or
doubled state.
At the narrower end of the curviform saddle a roller is placed, over,
which an endless woolen or other belt passes, tho object of which is
to enable the attendant by operating a hand wheel to move the belt, and 10
along with it the fabric, as may from time to time be required for
adjusting it to the desired position on the saddle and the inclined,
angular bars in the event of its becoming shifted.
And in order that my said Invention may be properly understood I
now proceed more particularly to set forth the system, mode, or manner 18
in or under which the same is or may be used or practically carried into.
effect, reference being had to the annexed Sheet of Drawings, and to the
letters and figures marked thereon, that is to say:-
Figure 1 on the annexed Sheet of Drawings is a sido clevation of a
crisping or doubling machine, to which the improvements constituting 20
my Invention are shown applied; Figure 2 is a plan thereof; and
Figure 3 is an elevation of the end marked B, Figure 1.
The rollers A, A', are carried in bearings between the upright
frames B, B. The roller A is driven from the fast pulley of the fast
and loose pullies C on the end of the axis thereof, and a spur wheel D, 2
fixed upon the axis thereof gears into a spur wheel E fixed upon the
shaft carrying the roller A', which is thus actuated. The frames B, B',
arc tied together by stays For rails, and upon the upper part of the
frame B a bracket G is formed or secured, and which carries upon a
stud H the hand wheel I and pulley J. An endless band x is passed 8
round the pulley J and also round another pulley K, situate beneath and
fixed on a shaft L, extending between and supported in bearings on the
frames B, B'. At the other end of the shaft L is a pulley M, over
which and also over a roller N, situate at the upper part of the saddle O,
is passed an endless band P. The saddle O is supported at one end 3
2.

page_text: upon the frame B', and at the other end by upright frames Q, Q', which
frames also carry the stenting bars R, S, and guide bar T. The guide
bar T consists of a roller having grooves or canals formed in its upper
and under sides, and extending throughout its whole length. Flanged
collars or guides U are placed loosely around the bar T, and tongues or
projections formed thereon fit into and slide in the grooves formed for
their reception in the said bar. A rope carried on the grooved pullies V
passes through the said tongues or projections, and is secured thereto on
one side, as shown more particularly at y, Figure 4, which is a section
upon an enlarged scale of one end of the guide bar T and of one of the
guides U. By securing the rope to the tongue or projection upon the
upper side of one guide U and upon the under side of the other similar
guide; and allowing it to pass freely through the tongues on the other
sides, these guides U are slid along the guide bar T cither towards or
from the centre thereof by actuating the hand wheel W, Figure 5, and
through it the grooved pullies V'and ropes to which tho guides U are
attached; and as the guides U are attached to the rope upon opposite
sides of the guide bar T, they will, upon the hand wheel W being
operated, advance or retire towards or from one another, but always
equidistant from the centre of the guide bar T.
'
Upon the frame B brackets X are bolted, which support a shaft
carrying the belt guide lever. Y, to which the belt fork Z is secured:
The lever Y may be operated from the platform d, or the driving. belt
may be shifted by means of the lever e at the other end of the machine,
which communicates with the shaft carrying the lever Y through the
connecting rod and lever 9. Upon the axis of the roller A¹ is fixed a
pulley K, which by means of a belt drives another pulley 1, fixed upon a
shaft m. At each end of the shaft m are discs n, and on these eccentric
studs are fixed, which through connecting rods o, o, give reciprocatory
motion to the plaiting or folding box i, suspended from the shaft L,
by which the fabric is plaited or folded after passing through the
rollers A, A'.
:
r
Figure 6 is an end elevation of the saddle O at the point marked a,
Figure 1; Figure 7 is a cross section at the line b; while Figure 8 is
; an elevation at the opposite end from Figure 6 at the point marked c,

page_text: The mode of operating my Invention is as follows:-The fabric to be
crisped or doubled (indicated on the Drawings by the dotted lines)
entering the machine in the direction of the arrows at the end marked A,
Figure 1, is first passed round the stenting bar S, thence it passes over
the guide bar T and between the guides U, which are adjusted by the 5
hand wheel W, as herein-before described, to the width of fabric under
treatment. It then passes over another stenting bar R, whence it is
conducted to the saddle O. The herein-before described configuration
of the saddle O causes the fabric to become crisped or doubled, and in
this state it is drawn over and between the inclined bars 7, which direct 1
it to the rollers A, A', after which in passing through the plaiting or
folding box i, actuated as herein-before described, it is plaited or folded
and deposited beneath in a crisped or doubled state, as shewn in dotted
lines at Z, Figure 1.
.
Figures 9 and 10 are respectively side and end elevations of a modi- 1
fication of the curviform saddle O. Under this modification the saddle O
consists of a flat triangular table, the apex of which is at the point
marked A, Figure 9, and the base at the point marked B, Figure 9. By
the combined inclined position and triangular shape of the table O tho
cloth (indicated by the dotted lines), while being drawn over it in the 20
direction of the arrows, is crisped or doubled, as herein-before described
with reference; to the preceding Figures.
a
C
Having now described and particularly ascertained the nature of my
said Invention, and the system, mode, or manner in or under which the
samo is or may be used or practically carried into effect, I would 2
observe in conclusion that what I consider to be novel and original and
therefore claim as the Invention secured to me by the herein-before
in part recited Letters Patent is,―
"' First. Tho general arrangement and construction of crisping or
doubling machine, illustrated on the appended Drawings, wherein a 30
curviform or triangular saddle is employed in conjunction with a roller
and endless travelling band to effect the crisping and doubling operation,
substantially as herein-before described.
Second. The inclined guide bars h, whereby the fabric on leaving the
saddle in a crisped or doubled state is directed between the delivery and 35

page_text: pressing rollers A, A', substantially as herein-before described and shewn
on the annexed Sheet of Drawings.
In witness whereof, I, the said George Fyfe Elder, have hereunto
set my hand and seal, this Eighteenth day of August, Onc
thousand eight hundred and seventy-four.
GEORGE FYFE ELDER. (L.S.)