IMPROVEMENTS IN LOOM WARP BEAM WEIGHTING AND LETTING OFF MOTIONS
Year: 1885

page_text: "
I JAMES HUDSON of Woodbine Cottage, Padiham Road, Burnley, in the County
of Lancaster, Gentleman, do hereby declare the nature of my said invention for
IMPROVEMENTS IN LOOM WARP BEAM WEIGHTING AND LETTING OFF MOTIONS
to be as follows:-
"
This invention consists of improved apparatus designed for weighting the warp
beams of looms for weaving and letting off the warp therefrom the weighting
apparatus self actingly adapting and adjusting the weight to the decreasing or
changing diameters of the said beam.
Apparatus for purpose aforesaid according to this my said invention comprises
a rod to which the ordinary weights are hung and having a central presser roller
bearing on the yarn on the beam the said rod extends the length or width of the
warp beam, and is cranked or turned at its ends forming three sides of a rectangle;
the extremities of the cranked ends are carried by studs and on each stud is a
pulley, the latter rests upon the horizontal arm of a cranked lever there being one
of such levers at each end of the beam. The fulcrums of the cranked levers are
underneath the necks or ruffles of the beam and the said levers are suspended by
rope or chain attached thereto and which is thence continued to and around the
necks or ruffles of the beam. To the axis of each pulley is attached a chain or
rope which passes over a guide pulley and has a weight attached to its end-It
will thus be seen the two horizontal arms of the cranked levers form a tram way
for the two pulleys carrying the cranked rod and ordinary weights and that as the
warp presser roller, and the cranked rod, follow up the decreasing diameter of the
beam, the pulleys will move upon the horizontal arms, of the cranked levers, so
approaching nearer to their fulcrums, and varying the grip or friction of the rope
or chain upon the neck of the beam so giving uniformity of tension on the warp
from the beginning to the end.

page_text: COMPLETE SPECIFICATION.
Improvements in Loom Warp Beam Weighting and Letting
Off Motions.
"
I JAMES HUDSON, of Woodbine Cottage, Padiham Road, Burnley, in the County
of Lancaster, Gentleman, do hereby declare the nature of my said invention for
"IMPROVEMENTS IN LOOM WARP BEAM WEIGHTING AND LETTING OFF MOTIONS
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 of improved apparatus designed for weighting the warp
beams of looms for weaving and letting off the warp therefrom, the weighting
apparatus self actingly adapting and adjusting the weight to the decreasing or
changing diameters of the said beam.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings,
forming a part of this specification, in which—
Fig. 1 is an end elevation of part of a loom having my improvements applied
thereto.
Fig. 2 is a plan view of the same-Like parts being employed at each end of
the loom.
At 1 is the weight rod or bar extending across the back of the loom and having
fixed weights 2, 2, thereon, the rod 1 is carried by the vertical arms 3, 3, the rod
and arms form three sides of a rectangle-In the upper end or extremity of cach
arm 3 is a stud 4 on which is a pulley or runner 5 the latter acts upon the
horizontal levers 6, 7, there being one of such levers above the other, below the
neck or ruffle 8 of the beam 9, the 'said levers 6 and 7 being connected by
the link 10 and chain 11 passed to and around the neck or ruffle 8 of the beam 9,
the other end of the chain being attached to a fixed part of the end frame 12-At
13 is a weight carried by chain passed over the runner 5 the weight is for purpose
of ensuring the runners 5 moving along the levers 6 and keeping the presser 14
to the yarn on the beam as the latter decreases in diameter-It will be seen that
the arms of the levers 6 form a tramway for the pulleys 5, carrying the rods 1, 3,
and weights 2 and as the warp presser roller 14 moves inwards by reason of the
decreasing diameter of the warp beam the pulleys 5 approach their fulcrums 15
and so proportionately decreasing the leverage upon the outer arms 17 of the
levers 6 and strain upon the liuk 10, lever 7, and consequently the grip of the
chain 11 upon the ruffle of the beam is varied.
It will be evident that by varying the position of the link 10 on the levers 6
and 7 and by changing the position of the attachment 20, the degree of grip or
weighting of the beam may be varied as desired without any alteration in the
lever weights, or of the position of such weights upon their carrying bar or rod.

page_text: 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
1. The levers 6, 7, connected, operated, and operating through the weights 2,
presser 14, vertical arms 3, runners 5, and weight 13 all in combination and as
herein fully described and as illustrated.
2. The levers 6 and 7, connections 10, 20, and 11, in combination and as and for
the purpose herein fully described.