IMPROVEMENTS IN MECHANISM FOR REGULATING THE TENSION OF THE WARP IN WEAVING LOOMS
Year: 1869

page_text: LETTERS PATENT to Munson Sigler, of Paterson, in the County of
Passaic, in the State of New Jersey, and the United States of
America, for the Invention of "IMPROVEMENTS IN MECHANISM FOR
REGULATING THE TENSION OF THE WARP IN WEAVING LOOMS."
Sealed the 7th September 1869, and dated the 22nd March 1869.
PROVISIONAL SPECIFICATION left by the said Munson Sigler at the
Office of the Commissioners of Patents, with his Petition, on the
22nd March 1869.
I, MUNSON SIGLER, of Paterson, in the County of Passaic, in the State
of New Jersey, and the United States of America, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN MECHANISM FOR REGU-
LATING THE TENSION OF THE WARP IN WEAVING Looms," to be as follows:-
The object of my Invention is to maintain automatically a uniform
tension upon the warp of the weaving fabric as it rises and falls in the
fabrication of the cloth. This object I accomplish by the use of a series
of rollers fitted in a swinging frame applied to the loom, so as to receive
and hang in the warp with such a degree of weight as may be best
adapted to the fabric to be woven, the said swinging frame being

page_text: provided with an adjustment, by which the weight upon the warp may
be increased or diminished at the pleasure of the attendant. The
upward and downward motion of the warp is obtained by a pair of cams
through the agency of levers upon which the said cams act, the said
levers being attached to the warp by means of rigging cords. The
swinging frame above referred to consists of two stands or brackets
whose upper ends are united by means of a connecting rod reaching
across the rear parts of the loom from one bracket to the other. These
brackets are provided with suitable bearings to carry the journals on
the ends of the rollers, of which there are three, and each of the said
brackets is made with a slotted foot projecting inward, the slot in the
feet of the said brackets being made to receive the studs upon which
the said swinging frame is supported, about which it swings or vibrates,
and on which it is adjusted horizontally to regulate the weight or tensile
strain upon the warp. The vibrating brackets or studs are fitted with
three rollers. The work however might be done with two though not
so well, without a different construction of stands or brackets. The
journals of the top or third roller do not have their bearings in the
brackets. It simply lies on and between the two lower rollers and is
kept in position by means of a pair of hook journals which reach down
and hook on to one of the rods uniting the brackets, and which are fitted
with nuts at their tops, there being under them springs made of any
suitable material and in any suitable form by which means this top
roller can be adjusted to the bottom rollers as closely as may be desired
to keep the warp in its place, while at the same time it can yield to
any little inequality in the thickness of the warp, thus leaving the tension
always the same, or as nearly so as can be desired in practice.
It has already been stated that the brackets vibrate upon the studs
whereon they are supported, and the further they fall back the greater
will be the tension upon the warp, and if there were nothing to regulate
or limit their vibration the whole swinging frame would fall forward
or backward with its entire weight in the warp, thus impairing or
destroying its utility. It is necessary therefore to have some means
for regulating this vibration of the regulator, that is of fixing the points
between which it shall vibrate; this I accomplish by means of a
notched bracket which fits in and is bolted on corresponding notches
in the top of the main frame post and which is made to project over
the inside of the said post, and embrace the stands or brackets in a

page_text: slot or recess in which the said stands vibrate, the hole through which
the screw passes to secure the said brackets to the frame being made
oblong so that the said bracket can be moved back or forth to increase
or diminish the tension as the case may require..
SPECIFICATION in pursuance of the conditions. of the Letters Patent,.
filed by the said Munson Sigler in the Great Seal Patent Office on
the 22nd September 1869..
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MUNSON
SIGLER, of Paterson, in the County of Passaic, in the State of New Jersey,.
and the United States of America, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-second day of March, in
the year of our Lord One thousand eight hundred and sixty-nine,
in the thirty-second year of Her reign, did, for Herself, Her heirs
and successors, give and grant unto me, the said Munson Sigler, Her
special licence that I, the said Munson Sigler, my executors, adminis-
trators, and assigns, or such others as I, the said Munson Sigler, my
executors, administrators, 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
MECHANISM FOR REGULATING THE TENSION OF THE WARP IN WEAVING LOOMS,'
upon the condition (amongst others) that I, the said Munson Sigler,
my executors. or administrators, by an instrument in writing under
my, or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and 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 I, the said Munson Sigler, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying Drawing,
forming a part of this Specification:-

page_text: The object of my Invention is to maintain automatically a uniform
tension upon the warp of the weaving fabric as it rises. and falls in
the fabrication of the cloth. This object I accomplish by the use of
a series of rollers fitted in a swinging frame applied to the loom, so as to
receive and hang in the warp with such a degree of weight as may be
best adapted to the fabric to be woven, the said swinging frame being,
provided with an adjustment by which the weight upon the warp,
may be increased or diminished at the pleasure of the attendant.
Figure 1 is a side view of a loom to which my said Invention is
applied. Figure 2 is a back view of the same. Like letters indicate the
same parts in both of the Figures.
A represents the frame of the loom, and E represents a pair of cams.
by which the upward and downward motion of the warp is obtained
through the agency of levers upon which the said cams act, the said
levers being attached to the warp by means of rigging cords. The
swinging frame above referred to is represented in the Drawing. It
consists of two stands or brackets which are marked B, and the upper
ends whereof are united by means of a connecting rod reaching across
the rear part of the loom from one bracket to the other. These brackets
are provided with suitable bearings to carry the journals on the ends
of the rollers, of which there are three, arranged substantially as shown,
and each of the said brackets is made with a slotted foot projecting
inward, the slot in the feet of the said brackets being made to receive
the studs upon which the said swinging frame is supported, about
which it swings or vibrates, and on which it is adjusted horizontally
to regulate the weight or tensile strain upon the warp. The vibrating
brackets or studs B are shewn fitted with three rollers, the work however
might be done with two though not so well without a different con-
struction of stands or brackets. The journals of the top or third roller
do not have their bearings in the brackets; it simply lies on and between
the two lower rollers, and is kept in position by means of a pair of hook
journals C which reach down and hook upon one of the rods uniting
the brackets and which are fitted with nuts at their tops, there being
under them springs made of any suitable material and in any suitable
form by which means this top roller can be adjusted to the bottom rollers
as closely as may be desired to keep the warp in its place, while at

page_text: the same time it can yield to any little inequality in the thickness of
the warp, thus leaving the tension always the same or as nearly so as
can be desired in practice.
It has already been stated that the brackets B vibrate upon the
studs wheron they are supported, and it will be seen that the further
they fall back the greater will be the tension upon the warp, and that
if there were nothing to regulate or limit their vibration the whole
swinging frame would fall forward or backward with its entire weight
in the warp, thus impairing or destroying its utility. It is necessary,
therefore, to have some means for regulating this vibration of the
regulator, that is, of fixing the points between which it shall vibrate;
this I accomplish by means of a notched bracket D which fits in and
is bolted on corresponding notches in the top of the frame post A, and
which is made to project over the inside of the said post and embrace
the stands or brackets B in a slot or recess in which the said stands
vibrate, the hole through which the screw passes to secure the said
brackets D to the frame being made oblong, so that the said brackets
can be moved back or forth to increase or diminish the tension, as the
case may require.
Having thus fully described my said Invention, and shown how the
same may be conveniently and advantageously carried into practice,
I claim the application of a tension regulator to the loom which will
by the whole or a part of its own weight maintain a uniform tension
upon the warp of the weaving fabric, substantially as described.
MUNSON SICT D
MUNSON SIGLER
(i.C.)