Improvements in or relating to Loom Picking and Shuttle Box Motions.
Year: 1891

page_text: Date of Application, 24th Oct., 1891
Complete Specification Left, 23rd July, 1892-Accepted, 22nd Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in or relating to Loom Picking and Shuttle Box
Motions.
I GEORGE HERBERT HODGSON of Thornton Road, Bradford in the County of
York, Machine Maker, do hereby declare the nature of this invention to be as
follows:-
:-
This invention relates to improved apparatus for controlling the picking motion
and for throwing out or disconnecting such picking motion allowing the attendant
on the loom to put the said motion out of gear when requisite, or desired, and for
locking or steadying rotary shuttle boxes.
According to this my said invention on the tappet shaft outside the framing of
the loom are two double throw tappets one serving to lift and lower the pattern
lags, the other operating a rocking lever having an eye or slot through it. Through
the slot are passed the upper ends of two spear headed rods the lower ends of which
are connected to studs on the opposite sides of a disc fixed on end of a short shaft
on which is a bevel segment wheel the latter gears with a smaller bevel wheel
carried on a stud and to the rim or outer diameter of the latter wheel is connected
a draw rod which operates a second draw rod and latter in turn works an upright
arm. The ends of two other draw rods connected with the clutch box of the
picking tappet are operated by the said upright arm so that (as the pattern requires)
one or other of the two spear rods are lifted by the barb of the rod projecting over
the end of the slot in the rocking lever the latter carries upwards the rod and
effects the throwing out of the tappet when latter not required to act. The opposite
draw rods for the two picking tappets are by leather or other pliable straps con-
nected with or to pulleys on a cross shaft and the latter is continued to the front of
the loom and by a finger on the end can readily be operated by the foot of the
weaver when latter desires to throw out either picking tappet.
For locking or steadying the rotary shuttle boxes in position for the pick I
employ two fingers hinged on studs in a cross bar in which the hooked pulling rods
employed for turning the shuttle boxes work the lower ends of the said fingers
extend between the said bar and are curved towards each other, a tappet piece on
each pulling rod acts on each of the curved ends as follows.
When a pulling rod descends the tappet piece passes between the curved ends of
the fingers and allows both fingers to be brought together at their upper ends by the
action of a spiral spring when the ends of the fingers are brought under two of the
pulling studs and so the boxes are held or locked steadily in their true position but
on the ascent of the pulling rod its tappet piece acts on the curved end of the finger
and forces the upper ends of the fingers open and clear of the studs so that in event
of the connecting spring failing to act the fingers cannot remain closed under the
pulling studs when the box is required to make another movement or part
revolution.
Deted this 221 dew of October 1891

page_text: 1
COMPLETE SPECIFICATION.
Improvements in or relating to Loom Picking and Shuttle Box
Motions.
I GEORGE HERBERT HODGSON of Thornton Road, Bradford in the County of
York, Machine Maker, 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 relates to improved apparatus for controlling the picking motion
and for throwing out or disconnecting such picking motion allowing the attendant
on the loom to put the said motion out of gear when requisite or desired and to
improved apparatus for steadying the shuttle boxes.
According to this my said invention on the tappet shaft outside the framing of
the loom are two double throw tappets one serving to lift and lower the pattern
lags in the ordinary manner the other operating a rocking lever having an eye or
slot through it. Through the slot are passed the upper ends of two spear headed
rods, the lower ends of which are connected to studs on the opposite sides of a disc
or arm fixed on the end of a short shaft on which is a bevel segment wheel the
latter gears with a smaller bevel wheel carried on a stud and to a pin on the rim or
outer diameter of the wheel is connected a draw rod which in turn works an upright
arm. The ends of two other draw rods attached to one end of the arm are
connected by lever to the clutch box of the picking shaft.
The tappets operate the said rocking lever so that one or other of the two spear
rods are lifted by the barb of the rod projecting over the end of the slot in the
rocking lever and the latter carries upwards the rod and effects the throwing out of
the clutch of the picking shaft when latter is not required to act.
The opposite
draw rods for the two clutch levers are by leather or other pliable straps connected
with or to a pulley on a cross shaft and the latter is continued to the front of the
loom and by a finger on the end can readily be operated by the foot of the weaver
when he desires to throw out or disconnect the picking motion.
For locking or steadying the shuttle boxes in position for the pick, I employ 'two
fingers hinged on studs in a cross bar in which the hooked pulling rods work. The
lower ends of the said fingers extend below the said bar and are curved towards
each other a tappet piece on each pulling rod acts on each of the curved ends of the
fingers and moves their upper ends clear of the pulling studs on the end of the
shuttle boxes. When the tappets do not operate on the fingers a spiral spring
moves their upper ends under the pulling studs and the latter and boxes are held
stationary thereby.
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
in which
Fig. 1. is a side elevation (looking in the back of the looms) of my improved
apparatus for controlling the picking motion.
Figs. 2 and . are details of Fig. I drawn to enlarged scale in order to illustrate
it more clearly.
Fig. 3. is a plan view of part of Fig. 1 drawn detached, in order more clearly
to illustrate same.
Fig. 4. is an end elevation of Fig. 2. looking from the front of the loom.
Fig. 6. is an end elevation of my improved appliances for purpose aforesaid.
Fig. 7. is a detail of Fig. 6 drawn to an enlarged scale in order to illustrate my
invention more clearly.
According to this my said invention on the tappet shaft 1 outside the framing 2
of the loom are two double throw tappets 3. 3. one serving to lift and lower the
pattern lags in the ordinary manner the other operating a rocking lever 4. having
an eye or slot 5 through it.
Through the slot 5. are passed the upper ends of two spear headed rods 6. 6. the

page_text: lower ends of which are connected to studs 8 on the opposite sides of a disc or
arm 7 fixed on the end of a short shaft on which is a bevel segment wheel 10 the
latter gears with a smaller bevel wheel 11 carried on a stud 12 and to a pin 13 on
the rim or outer diameter of the wheel 12 is connected a draw rod 14 which in
turn works an upright arm 15. The ends of two other draw rods 16-17 attached
to one end of the arm 15 are connected by lever 18-19 to the clutch box 20-20 of
the picking shaft 21.
The tappets 3-3 operate the said rocking lever so that (as indicated by the
pattern barrel 40) the two spear rods 6 are moved by the fork 41 operated by
the rod 42 and lever 43 from the pattern barrel 40 and one or other is caught and
lifted by the barb of the rod projecting over the end 22 of the slot 5 in the rocking
lever 4 the slot 5 being made so long that only one of the rods 6 can be caught by
the lever 4 and the latter carries upwards the rod and effects the throwing out of
the clutch 20 of the picking shaft 21 when latter is not required to act. The
opposite draw rods 16-17 for the two clutch levers 18 18 are by leather or other
pliable straps 23 23 connected with or to a pulley 24 on a cross shaft 25 and the
latter is continued to the front of a loom and by a finger 26 on the end can readily
be operated by the foot of the weaver when he desires to throw out or disconnect
the picking motion.
For locking or steadying the shuttle boxes in position for the pick I employ two
fingers 27-27 hinged on studs 28-28 in a cross bar 29 in which the hooked
pulling rods 30-30 work. The lower ends of the said fingers 27. 27 extend
below the said bar 29. and are curved towards each other, a tappet piece 31. 31.
on each pulling rod 30, acts on each of the curved ends of the fingers and moves
their upper ends clear of the pulley studs on the end of the shuttle boxes. When
the tappets do not operate on the fingers a spiral spring moves their upper ends
under the pulling studs and the latter and shuttle boxes are held stationary thereby
as follows:-When the pulling rod 30 descends, the tappet piece 31 passes away
from or below the curved end of the finger 27 and allows the upper end of the
finger 27 to be brought near to the upper end of the other finger 27. by the action
of a sprial spring 32 when the upper end of one of the fingers 27 is brought under
one of the pulling studs 33 on the end of the shuttle boxes and so the box is held or
locked steadily in its true position for the pick to be made. On the ascent of the
pulling rod 30 its tappet piece 31 acts on the curved end of one of the fingers 27
and forces the upper end of the finger 27 away from the upper end of the other
finger 27 and clear of the studs 33 so that the fingers 27. 27 cannot remain closed
under the pulling studs 33 when the box is required to make another movement or
part revolution.
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 rocking lever 4, spear headed rods 6. 6, bevel wheels 10. 11, draw
rod 14., draw rods 16. 17, and levers 18. 18. all in combination operated and
operating as and for the purpose herein described and substantially as illustrated by
drawings annexed.
2. The rocking lever 4, spear headed rods 6. 6, bevel wheels 10. 11, draw rod 14,
draw rods 16. 17 and levers 18. 18, straps or their equivalents 21. 21. pulley 22 and
treadle or finger 24 all in combination operated and operating as and for the
purpose herein described and substantially as illustrated by drawings annexed.
3. The fingers 27. 27. pulling rods 29. 29. and tappet pieces 30. 30 all in com-
bination operated and operating as and for the purpose herein described and
substantially as illustrated by drawings annexed.
WALTER BRIERLEY,
Bank Chambers, Waterhouse Street, Halifax, Agent for the Applicant.