IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1884

page_text: I CHARLES THOMPSON of Halifax in the County of York, Mill Furnisher do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN LOOMS
FOR WEAVING" to be as follows:-
This Invention consists of improved combined apparatus for letting off the
warp from the warp beam and taking up the cloth upon the cloth roller as
woven.
According to this my Invention I employ a pinion on the tappet shaft gearing
with and driving a change plate wheel on a stud fixed in the end frame of the
loom on the face of the plate wheel is a tappet having two or more throws the
tappet acts on the lower arm of an adjustable bell crank lever to the upper arm
of which is attached a catch, working a stud catch wheel and on the same stud is
a pinion gearing with the train of ordinary taking up wheels. To the upper arm
of the bell crank referred to, is attached a second catch operating a wheel mounted
on the shaft of one of a pair of rollers (by preference fluted) these rollers are
geared-The yarn froin the beam is passed to and under one of the two rollers
thence over the second roller and under a guide bar thence outside the yarn beam
to and over the back bearer. The letting off and the taking up are thus coupled
and operated from one bell crank lever so that they are correctly timed and move
in unison.
Dated this First day of January 1884
WALTER BRIERLEY,
Agent for the Applicant.

page_text: IN LOO
FOR TY
апа
particularly described and ascertained in and by the following statement aided by
the annexed Drawings:
This Invention consists of improved combined apparatus for letting off the
warp from the warp beam and taking up the cloth upon the cloth roller as
woven.
Reference is to be had to the accompanying Drawings forming a part of this
Specification in which:
Figure 1 is an end elevation of loom with my improvements applied.
Figure 2 back elevation of same.
Figure 3 sectional elevation.
Figure 4 plan.
According to this my Invention I employ a pinion 1 on the tappet shaft 2
gearing with and driving the intermediate wheel 3 on a stud 4 fixed in the end
frame of the loom the intermediate wheel 3 operates change wheel 5 on the stud 6
on the other end of which is the tappet 7 the latter acts on the lower arm of an
adjustable bell crank 8 to the upper part 9 is attached a catch 10 working catch
wheels 11. 12-On the same stud as the catch wheel 11 is the bevel wheel 13
which operates bevel wheel 14 (see Fig. 4) and wheels 15. 16 and worm 18 worm
wheel 19 which is on the boss 20 of the wheel 21, the latter drives 22 on axis of
the roller 23, at other end of which is pinion 24 gearing with like wheels 25. 26,
on rollers 27 28-At 29 is the warp beam the warp 30 passing round the three
rollers 27 23 and 28 as indicated by arrows (see Fig. 3)-The three rollers 27. 28. 23
are placed as shewn below the beam 29 the warp 30 in passing from the roller 28
to the back bearer 28" bears upon the main body of warp on the beam, and the
length of warp, from roller 28 to the shed at 28 admits of the formation of
the shed mainly through the elasticity of this length of warp between parts 28
and 28b, and so a geared and positive letting off motion is available-The taking
up apparatus comprises a catch wheel 12 mounted on boss 29ª of change wheel 31
gearing with wheel 32 carried on stud 33 in radial slot 34, on the stud 33 of
wheel 32 is pinion 35 gearing with wheel 36 on breast roller 37-The catch
wheels 11 and 12 when operated for taking up the cloth, as woven are held by the
catches 38 and 39.
The change wheel 5 determines the number of picks, according to the number
of teeth in the said wheel whilst the change wheel 31 when having double
number of teeth, will take up for each tooth half a pick, for example a wheel 31
of 50 teeth and a wheel 5 of 50 teeth will take up each tooth a pick, but a
wheel 31 having 100 teeth and wheel 5 having 50 teeth would take up for each
tooth half a pick.
It will be understood that the apparatus herein described is not necessarily to
be used in its entirety because the mechanism for taking up the cloth as woven
may be used apart from the warp letting off mechanism, any of the known letting
off appliances being substituted for that shewn in the Drawings.
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 apparatus for letting off the warp from the beam, and the apparatus for
taking up the cloth in combination, and as herein described and illustrated by
Drawings,

page_text: The apparatus for taking up the cloth as herein described and illustrated by
Drawings.
The combination of the rollers 27. 23. 28 warp beam 29 and back bearer 28ª
when arranged and employed as herein described and illustrated by Drawings.
Dated this 10th day of September 1884.