Improvements in Drag, or Pacing, or Tension Regulating Apparatus for the Warp Beams of Looms.
Year: 1889

page_text: Date of Application, 1st July, 1889
Complete Specific .tion Left, 14th Mar., 1890-Accepted, 10th May. 1890
PROVISIONAJ SPECIFICATION.
Improvements in Drag, or Pacing, or Tension Regulating Apparatus
for the Warp Beams of Looms.
I, ROBERT SCOTT, of Craigmount Tayport, in the County of Fife, North Britain,
Manufacturer, do hereby declare the nature of this Invention to be as follows, that
is to say:
My said Invention has for its object to improve and simplify the construction of
apparatus for applying and adjusting the drag or pacing of the warp beams of looms
for the purpose of regulating the tension of the warps; and my improved apparatus
can be used with the pulleys or drag heads commonly fixed on warp beams or with
any suitable part fixed or formed on a warp beam and it may be applied to one or
both ends of a beam.
In carrying out my Invention according to one modification the warp beam has
fixed on it the usual drag head or pulley and end disk or flange piece. A ring formed
with ratchet teeth on part of its outer surface is placed so as to encircle the pulley and
is arranged to apply friction to that pulley by means of three pads bearing on the
pulley, and made adjustable so as to bear with more or less pressure accordingly as
more or less tension is required.
When the loom is working the ring is held stationary by a pawl jointed to the
framing this pawl being lifted out of gear when it is wished to slacken or take back
the warps. Instead of the ratchet teeth the ring may be made with worm wheel or
spur teeth to gear with a worm or pinion; or the pawl may be arranged in any
convenient way.
Dated this Twenty-eighth day of June 1889.
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Drag, or Pacing, or Tension Regulating Apparatus
for the Warp Beams of Looms.
I, ROBERT SCOTT, of Craigmount, Tayport, in the County of Fife, North Britain,
Manufacturer, 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, that is to say :-
11
My said Invention has for its object to improve and simplify the construction of
apparatus for applying and adjusting the drag or pacing of the warp beams of looms
for the purpose of regulating the tension of the warps; and my improved apparatus
can be used with the pulleys or drag heads commonly fixed on warp beams, or with
any suitable part fixed or formed on a warp beam; and it may be applied to one or
both ends of a beam.
My improved apparatus is shown on an accompanying sheet of explanatory
drawings, figure, 1, being an elevation showing part of the gable or side frame of a
loom with the end of the warp beam having the tension apparatus on it. Figure, 2,
is a sectional view as at right angles to figure, 1; and figures, 3, and 4, are a plan
and elevation of a ring forming the principal part of the apparatus. In these
drawings the same reference letters are used to mark the same or like parts wherever
they are repeated.
The warp beam, A, is shown as having fixed on it an ordinary drag head or
pulley, B; and the usual end disk or flange piece, C, is also shown on the beam. A

page_text: ring, D, such as is shown separately in figures, 3, and 4, and which is formed with
ratchet teeth, E, on part of its outer surface, is placed so as to encircle the pulley, B;
and is arranged to apply friction to that pulley by means of three pads, G, shaped
to bear on the circumferential surface of the pulley. Each pad, G, has a suitable
friction cloth fixed on its inner bearing face, and it has connected to it by a swivel
joint a screw pin, H, which works in a screwed hole in the ring, D, and has an outer
squared end for a key for turning it so as to make the ring concentric with the pulley, B,
and so as to make the pads bear with more or less pressure on that pulley accordingly
as more or less tension is required. Each screw pin, H, passes through a U-shaped
piece, J, passed over the edge of the ring, D, and a pinching screw, K, screwed
through the bend of the piece and against the edge of the ring, D, makes the U-piece
bind on the screw pin, H, and prevents it from shifting after being adjusted. A jam
nut applied to the inside of the ring, D, would serve the same purpose.
If the end or flange disk, C, were made with a boss of suitable shape, the ring, D,
might be arranged to act upon it instead of on a separate pulley, B.
When the loom is working the ring, D, is held stationary by a pawl, L, jointed to
the framing, this pawl being lifted out of gear when it is wished to slacken or take
back the warps.
Instead of the ratchet teeth, E, the ring, D, may be made with
wormwheel or spur teeth to gear with a worm or pinion; or the pawl, L, may be
arranged in any convenient way.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
The improved tension regulating apparatus to be applied to one or each end of the
warp beam of a loom and consisting of a ring formed externally with teeth for being
held stationary and provided with adjustable frictional pads to bear on a pulley or
other suitable part fixed or formed on the beam substantially as and for the purposes
hereinbefore described.
Dated this Thirteenth day of March 1890.
EDMUND HUNT,
Applicant's Agent.