IMPROVEMENTS IN SIZING AND WARPING MACHINES
Year: 1880

page_text: LETTERS PATENT to Thomas William Little and William Townend, both of
Leeds, in the County of York, for an Invention of "IMPROVEMENTS IN
SIZING AND WARPING MACHINES."
PROVISIONAL SPECIFICATION left by the said Thomas William Little
and William Townend at the Office of the Commissioners of Patents on the
20th August 1880.
THOMAS WILLIAM LITTLE and WILLIAM TOWNEND, both of Leeds, in the County
of York. "IMPROVEMENTS IN SIZING AND WARPING MACHINES."
This Invention relates more especially to the class of sizing and warping
machines known as the Bywater machine, but may be applied to other machines.
The object of our Invention is,-
Firstly. To obtain greater speed than is otherwise attainable, and also to avoid
all strain or jerking of the threads on starting, and any slackening of the threads
on stopping, whereby better and more even warping is obtained.
To accomplish this object, instead of the driving pulleys being upon the shaft of
the drawing rollers we fix a stud or shaft in any convenient position, on which we
place the driving pulleys, a large fly or balance wheel, a pinion wheel which gears
with another pinion wheel upon the shaft of the drawing roller. By this means
both the starting and stopping of the machine is done gradually, the fly or
balance wheel revolving several times after the strap is upon the loose pulley.
Secondly. To regulate the friction on the warp so that a regular and uniform
length of warp is obtained accordingly, as may be required, and also the obtaining
of even cheeses.
We place a roller between the cheese and the cylinder (in a convenient position),
the roller pressing against the warp; should the friction of the warp vary, it
operates a lever attached to the roller, the said lever being connected to two
catches, hooks (or their equivalent), which work one on each side of a catch wheel,
the catch wheel operating by means of an endless chain a wheel upon the screw
shaft attached to the cheese arm. The screw shaft carries a weight, so that which
ever catch is operated upon the weight is moved one way or the other upon the
screw shaft, and more or less friction is given to the cheese according as the warp
is slack or tight.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas William Little and William Townend in the Great Seal
Patent Office on the 19th February 1881.
THOMAS WILLIAM LITTLE and WILLIAM TOWNEND, of Leeds, in the County of
York. "IMPROVEMENTS IN SIZING AND WARPING MACHINES."
This Invention relates more especially to the class of sizing and warping
machines known as the Bywater machines, but may be applied to other machines.
The object of our Invention is, firstly, to attain greater speed than is otherwise
attainable, and also to avoid all strain or jerking of the threads on starting, or
slackening of the threads on stopping, whereby better and more even warping is
attained; secondly, to regulate the tension of the warp so that a regular and
uniform length of warp is obtained accordingly, as may be required, and also the
obtaining of more even cheeses.
To attain greater speed, and also to avoid straining or jerking of the threads on
starting, or slackening of the threads on stopping, we fix the driving pulleys, a
large lly or balance wheel, and pinion wheel on a stud or shaft placed in any
suitable position, instead of the driving pulleys being upon the shaft of the drawing
roller, as heretofore; a second pinion wheel is placed upon the drawing roller shaft
gearing with pinion on the stud shaft, so that the starting and stopping of the
machine is done gradually, the fly or balance wheel revolving several times after
the strap is placed upon the loose pulley.
To regulate the tension of the warp and to obtain even cheeses we place a
feeling roller against the warp in any suitable position between the cylinder and
the cheese; the feeling roller is held in suitable bearings so as to be adjustable by
means of springs or weight to continually press upon the warp, more or less, as
required; the roller and bearings are connected to a lever or levers, the levers
being connected by connecting rods (or other means) to two pawls or catches (or
their equivalents) which work one on each side of the catch wheel or wheels.
The teeth of the catch wheels are preferably in opposite directions, and the catchies
also formed so as to act one on the upward and the other on the downward
movement of the arm by which they are carried. The arm is loose upon the catch
wheel shaft; continual motion is imparted to it by connecting rod, lever, and
eccentric.
The catches are moved or slid in or out of contact with their wheels, which are
turned in one direction or the other according to the catch engaged, this being
determined according to the friction upon the warp; if the tension is even and
regular neither of the catches will engage. Motion is imparted to a weight on the
screw shaft of the cheese arm by means of chain-wheels and chain (or other suitable
gear from the catch wheel shaft to the screw shaft), and, so according as the catch
wheel is operated in one direction or the other, so the weight upon the screw shaft
is moved nearer to or further from the pivot of the cheese arm and regulates the
fiction self actingly.
Such being the nature and object of this our said Invention, in order that the
same may be fully understood we have hereunto annexed two Sheets of Drawings
illustrative thercof, and have marked the same with figures and letters of
reference.

page_text: Sheet 2. Fig. 3 is a front elevation of our Invention, shewing our apparatus
for regulating the tension of the warp and for obtaining even cheeses.
Fig. 4 is an end view of Fig. 3.
Fig. 5 is a plan view of Fig. 3.
Fig. 6 and 7 are enlarged details of catch and catch wheel arrangements.
Figs. 1 and 2, Sheet 1, A, A, are the driving pulleys; B, the large fly or balance
wheel; C, the pinion wheel which are fixed on an extra stud or shaft D (in any
suitable position) instead of the driving pulleys being upon the shaft of the drawing
roller E, as heretofore) a second pinion wheel F is placed upon the drawing roller
shaft E gearing with the pinion C on the stud shaft D, so that the starting and
stopping of the machine is done gradually, the fly or balance wheel B revolving
several times after the strap is placed upon the loose pulley.
Figs. 3, 4, 5, 6, and 7, Sheet 2, A is the feeling roller carried in arms or bearings B
and held against the warp by means of the lever C and spring or weight D, the
lever C connecting it by connecting rod E to pawls or catches F and F', which
work one on each side of the wheels G and G keyed upon shaft H. The teeth of
the wheels G and G' are in opposite directions. The catches F, F', are formed so as to
operate their wheels G and G¹ (when in position), one on the upward and the other on
the downward movement of the carrier arm J. The arm J is loose upon the shaft H,
and continual motion is imparted to it by connecting rod K, lever L, and eccentric M.
The connecting rod E clips the carrier arm J which slides or moves the catches F
and F in or out of contact with the wheels G and G. The latter are turned one
way or the other according as they engage, this being determined by the amount
of friction upon the warp; if the tension is even and regular neither of the catches
will engage. Motion is imparted to a weight N on the screw shaft P of the
cheese arin R by means of chain wheels S and S¹, strap or chain T (or other similar
gear from the catch wheel shaft H to the screw shaft P), and so according as the
catch wheel is operated in one direction or the other, the weight N upon the screw
shaft P is moved nearer to or further from the pivot R¹ of the cheese arm R and
regulates the friction accordingly.
Having thus fully described the nature and particulars of this our said Invention
we would have it understood that we claim,—
Firstly. The arrangement of apparatus for preventing straining and jerking of
the threads, as shown at Figs. 1 and 2, substantially as set forth, or any such
mechanical equivalent.
Secondly, The general arrangement for self actingly regulating the tension of
the warp, as shewn at Figs. 3, 4, 5, 6, and 7.
Thirdly. The the employment of a feeling roller A in combination with the
connecting rod E acting upon catches, such as F and F', in the manner and for
the purpose substantially as shewn and described.
Fourthly. The combination of the shaft H, catch wheels G and G! actuating the
screw shaft P and weight N, in the manner and for the purpose substantially as
shewn and described.
In witness whereof, we, the said Thomas William Little and William Townend,
have hereunto set our hands and seals, this Eleventh day of January, in
the year of our Lord One thousand eight hundred and eighty one.
Witness,
JOHN E. WALSHI,
Engineer and Patent Agent,
Leeds and Halifax.
THOMAS WILLIAM LITTLE. (L.S.)
WILLIAM TOWNEND.
(L.S.)