Warp Threads.
Year: 1886

page_text: Warp Threads.
I, JOHN BURN, of the firm of J. Burn & Coy, Beehive Mills, Bradford in the.
County of York, 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:—
This invention has for its object the arrangement and combination of mechanism
in such a manner, by which I am enabled to polish warp threads of an indefinite
length direct from the warp beam without having occasion to pass the warp
through winding machines and warping mills as is now the common practice, and
thus to minimise the number of knots in the warp.
The invention consists in passing the warp threads from the warp beam through
the apparatus and subjecting them to the action of a series of revolving brushes,
the warp being stretched and supported by rollers mounted near the said brushes,
and wound around another beam at the opposite end of the machine ready for the
warp dresser.
It is necessary as with ordinary polishing machines that the warp should be
sized prior to polishing, and this may be accomplished by sizing the threads before
winding them on to the first warp beam hereinafter described or by winding the
unsized warp on to the beam and passing it through a sizing vat placed between
the said beam and revolving brushes.
In order that niy invention may be better understood, I have appended a sheet
of drawings in which Fig. 1 represents a side elevation of my improved machine,
Fig. 2 a longitudinal section of the same and Fig. 3 a plan; similar letters indicate
similar parts in all the figures.
The warp threads to be polished may be sized previous to placing them on the
beam A which is mounted in suitable journals and the threads conducted through
an ordinary separator B direct to the rollers R or to the vat C containing size similar
to that commonly used for sizing threads by polishing machines of the ordinary
construction. In the drawings the threads I are represented as stretched tight in
the machine passing under the bar or roller D near the bottom of the vat C; then
between the series of rollers R to the warp beam E which is rotated in any
suitable manner for drawing the warp threads through the machine and winding
the same on to the said beam.

page_text: The threads after leaving the vat C or the separator B as the case may be, are
supported by the rollers R and subjected to the action of the revolving brushes F
by which the threads are polished, the brushes being driven at a great speed by the
pullies G secured on the respective shafts, which are mounted in adjustable journals
so that the brushes can be brought more or less into contact with the warp threads
as may be found desirable during the operation of polishing. This adjustable
arrangement is shewn by details Figs. 4 and 5, the bushes or bearings H in which
the brush shafts revolve are fitted into the slot holes in the frame at each side
of the machine, and to the said frames under each bearing H is bolted a bracket M
which carries bevel wheels K mounted on a short shaft and screw L, the latter
engaging with the bearing H, thus by turning the hand wheel W on any of the
short shafts, the bevel wheels K revolve thereby turning the screw L. thus raising
or lowering the bearing H according to the direction in which the shaft is turned.
The bushes or bearings for the top brushes may be mounted in slots and
regulated in the manner as before described, or in fixed journals as shown by the
drawings at J in which case the necessary regulation of pressure on the warp
threads is effected by the raising or lowering of the brackets S carrying the
rollers R, thereby placing the warp threads more or less in contact with the
brushes to suit the requirements of the warp under operation.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
The arrangement and combination of the apparatus whereby warp threads of an
indefinite length can be polished by a series of revolving brushes substantially in
the manner shewn and described.