Improvements in Mechanism for Regulating the Tension on the Warp during the Process of Weaving
Year: 1894

page_text: Date of Application, 6th Oct., 1894
Complete Specification Left, 3rd Dec, 1994 -Accepted, 5th Jan. 1895
PROVISIONAL SPECIFICATION
Improvements in Mechanism for Regulating the Tension on the
Warp during the Process of Weaving.
We, CHARLES BERISFORD, DAVID BIRCHENALL, and HARRY BERISFORD,
trading as Berisford and Birchenall, of Victoria Mills, Congleton, in the County
of Chester, Manufacturers, and WILLIAM GORTON and CHARLES WOOD, both
of Heaton Park, Prestwich, in the County of Lancaster, Mill Managers, do
hereby declare the nature of this invention to be as follows.—
This invention consists in the application of certain mechanism for regulating the
tension on the warp threads during the process of weaving, in looms employed for
weaving textile fabrics
The object of this invention is to dispense with hand manipulation for regulating
the speed of the beam and the tension on the waip.
We effect this object by attaching a bell crank lever to a loom fiame by means
of a rod 1, said levei being formed with a grooved clip as to fit on the edge of the
end a of the warp beam, and with a curved or straight arm c attached thereto-and
projecting thereftom, said nim being connected to the warp pulley to which the
weight is usually attached, by means of a cord e passing through the hole c' in the
end of the aim c.
The upper edge of the aforesaid arm c is serrated, and an adjusting weight 9 13
suspended therefrom, by which greater or less tension may be placed on the warp
according to the texture of the fabric that is being woven
The herein before described lever can be adapted to all kinds of looms employed
in weaving either light or heavy goods.
Dated to 5th dan of Nathan 1001
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicants.
Improvements in Mechanism for Regulating the Tension on the
Warp during the Process of Weaving.
We, CHARLES BERISFORD, DAVID BIRCHENALL, and IIARRY BERISFORD,
trading as Berisford and Birchenall, of Victoria Mills, Congleton, in the County
of Chester, Manufacturers, and WILLIAM GORTON and CHARLES WOOD, both
of Heaton Park, Prestwich, in the County of Lancaster, Mill Managers, do
hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
This invention consists in the application chiefly to small ware looms of certain
mechanism for regulating the tension on the warp threads during the process of
weaving in looms such as are employed for weaving textile fabrics. The object
of this invention is to dispense with hand manipulation for regulating the speed of
the beam and the tension on the warp.

page_text: We effect this object by means of a lever that is formed with a groove or
chp which acts on the periphery of the end of each of the warp beams in the
manner hereinafter described, and as illustrated in the accompanying diawing in
which
Fig. 1 represents part of a loom with our invention applied:
Figs. 2, 3, and 4, which are drawn to an enlarged scale show the same invention
applied with different forms of levers,
In the several views shown on drawing similar letters refer to similar parts
In this invention we construct a lever such as is represented by Fig 2, Fig. 3,
and Fig. 4 on the accompanying drawing, or a lever of other preferred form in
which is a groove as that is intended to fit on the edge a' of the end of the warp
beam a.
The aforesaid levers are fulcruined at d by means of rods that are fitted
longitudinally between the ends of the loom and in proximity to the waip beams,
one of said levers being placed in a transverse position opposite or over the edge of
one of the ends of each warp beam as in the manner shown in Fig. 1.
The free end of each leser is attached by a cord e to the warp weight pulley,
that is connected by means of the warp with the waip beam, upon which sail lever
18 intended to act, the aforesaid cord e passing through the hole e' in the end of the
arm b' of the lever b.
The upper edge of the arm 6 is notched or serrated, and an adjusting weight as g
is suspended therefiom.
The groove b¹ of the lever will by these means be caused to bear more or less
on the edge a' of the warp beam a, and the tension on the warp will thereby be
regulated and adjusted, greater or less tension being placed on the warp according
to the texture of the fabic that is being woven by placing the weight g neater to
or farther from the rod /
In Fig. 1 the warp 9 is shown passing from the several beams a over the rod /
placed opposite each tier, and is carried around under the rods and from thence
upwards over the separate pulleys and A' to the warp weight pulleys j to which
the levers are attached, following the ordinary course as indicated by arrows,
until the finished fabric is deposited at 2.
The herein described lever can be adapted to all kinds of loomis employed in
weaving either light or heavy goods.
Having now particularly described and ascertained the nature of this our said
invention and in what manner the same is to be performed we declare that what
we claun is
1st. In looms such as are employed for weaving textile fabrics, the application
of a leve either of the foun shown on the drawings or other preferred form, in
which 18 a groove or clip as b' for acting on the periphery on edge of the end of the
warp beam in the manner and for the purpose substantially as herein before
described.
2nd. In looms such as are employed for weaving textile fabrics, the application
of a lever either of the form shown on the drawings or other preferred form, in
combination with á fulcrum as 1, an adjustable weight as g and the connection with
the ordinary warp weight pulley in the manner and for the purpose substantially as
herein befoie described.
Dated this 30th day of November 1901
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicants.