Improvements in Shedding Motions, Letting Off Motions, Letting Back Motions, and Shuttle Guards of Looms for Weaving.
Year: 1885

page_text: Improvements in Shedding Motions, Letting Off Motions, Letting
Back Motions, and Shuttle Guards of Looms for Weaving.
I CHRISTOPHER CATLOW, of 22 Clifton Street, Burnley, in the County of
Lancaster, Overlooker, do hereby declare the nature of my said invention for
"IMPROVEMENTS IN SHEDDING MOTIONS LETTING OFF MOTIONS LETTING BACK
MOTIONS AND SHUTTLE GUARDS OF LOOMS FOR WEAVING" to be as follows
1
In shedding motions according to this invention, the warp threads, in formation
of the "shed," are operated by means of intermediate levers, connected by cords,
and wires, or loops, by the difference of position of the wires or loops, that is to
say, the loops vary in distances, from the fulcrums of the several levers and secure
(from an uniform lift of the jack levers) the requued variation of the healds, or
greater lift to the back of the shed
For letting off the warp, I employ two L shaped levers, each carried on a stud,
at opposite sides of the loom, to the horizontal or lower arm of the levers 18
attached a screw hooks, and wing nuts, each hook engages with the chains passed
over the necks of the beam-The vertical or upright arms of the L levers, are
connected by a rod, having a coiled spring or springs thereon, one end of the rod
18 screwed and receives a wheel having a milled rim, the boss of the wheel is
tapped and worked upon the rod, the other end of the rod is connected to a hand
lever, having a holding catch, the forked end of which rests against the upper end
of the opposite vertical lever-In connection with the catch wheel referred to, is a
catch, operated by a lever, the latter receives its motion from the "vibrator,” an
arm and vertical rod on which 18 a presser piece, and also a stop piece, and an
adjusting spiral spring so that as the pressure of the warp is varied, upon the
vibrator, the arm of the vibrator, will operate the vertical rod, and its pressure
piece, will in turn act upon the one end of the lever first referred to, which will be
tilted and its end, operates the catch of the milled wheel-An eccentric on the
crank shaft gives positive return motion to the vibrator, and by means of the
adjustment referred to, the degree of motion of the vibrator is regulated, according
to the diameter of the beam
For lifting the levers and weights, for letting back, or other purpose, the
weighting motion simultaneously, I employ a lever extending across the back of

page_text: the loom, one end being cranked or bent, and a handle formed thereon, the
weighting levers have each a projecting stud, near the ends projecting over the
lifting lever, so that when the lifting lever is raised, both the weighting levers are
lifted simultaneously.
The shuttle guards, I construct in the form of hooks or bent fingers, which
I attach to, and at intervals of the length of the hand rail, or the hooks or fingers,
are carried by a rod or bar, supported by and free to move, in brackets, attached
to the hand rail, so that they may be turned up, out of the way, when the shuttle
is being removed.

page_text: Improvements in Shedding Motions, Letting Off Motions, Letting
Back Motions, and Shuttle Guards of Looms for Weaving.
I CHRISTOPHER CATLOW of 22 Clifton Street, Burnley, in the County of
Lancaster, Overlooker, do hereby declare the nature of my invention for
"IMPROVEMENTS IN SHEDDING MOTIONS, LETTING OFF MOTIONS, LETTING OFF
MOTIONS, AND SHUTTLE GUARDS OF LOOMS FOR WEAVING" 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 improvements in shedding motions, whereby the
"shed" is operated by intermediate levers and letting off motions and shuttlo
guards.
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 elevation of the improved shedding motion
Fig 2, is an elevation of the warp letting off motion
Fig 3, is an end elevation of fig 2, in section.
Fig 4, is an elevation of letting off mechanism wherein a weight is employed
instead of spring for reason hereinafter stated
Fig 5, 6, and 7 are end and front views of the improved shuttle guard
In shedding motions according to this invention the warp threads in formation
of the "shed" are operated by means of intermediate levers 1, 2, of which inter-
mediate levers there will be any required number according to the number of
healds and staves connected by cords 3, 4, and wires, or loops 5, 6, and by the
difference of position of the wires, or loops, that is to say the loops vary in
distances, from the fulcrums, 7, 8, of the several levers 1, 2, and secure (from an
uniform lift of the Jack levers 9, 9, 9,) the required variation of the healds, or
greater lift to the back of the shed
For letting off the warp, I employ two L shaped levers 1, 2, each carried on a
stud 3, 3, at opposite sides of the loom, on the horizontal or lower arm 4, 4, of the
levers 1, 2, is attached screw hooks 5, 5 and nut, the hook engages with the
chain 6, 6, passed over the necks 7, 7, of the beam 8 The vertical or upright
arms 1, 2, of the L levers are connected by a rod 9, having a coiled spring or
springs 10, thereon, one end of the rod 9, is screwed and receives a wheel 11,
having a milled rim, the boss of the wheel 11, is tapped and works upon the screw
of the rod 9, the other end of the said rod 9, 18 connected to a hand lever 12,
having a holding catch 13, the forked end of which rests upon the upper end of
the vertical lever 1-In connection with the catch wheel 11, is a catch 14 having
a serrated back and being operated by a level 15 the latter receives its motion from
the "vibrator" 16, an aim 17 and vertical rod 18 on which is a pressure piece 19,
and also a stop pieco 20, and an adjustable spiral spring 21, so that as the pressure
of the warp is varied upon the vibrator 16, the arm 17 of the vibrator will operate
the vertical rod 18, and its pressure piece, 19, will in its turn act upon the one end

page_text: of the lever 20, which will be on its fulcrum 21 and its end 22 and rod 28 operates
the catch 14 of the milled wheel 11-An eccentric 24, on the crank shaft 25, gives
positive return motion to the vibrator 16, and by means of the adjustment referred
to, the degree of motion of the vibrator 18 regulated according to the diameter of
the beam 26 If the ruffle or necks 7, 7 of the beam be unequal or much worn the
best result is obtained by use of a weight 28 instead of the spring 10, (as illustrated
by fig 4,) in which arrangement I make the lever 2, shorter than lever 1, and
mount upon it the bell crank lever 12 in order to secure uniform action of the
levers 1, and 2 which is as follows
The weight 28 by connectins 12-9-1, bears 4 downwards on its fulcrum 3,
thereby applying gup by the hook 5 and chain 6 meanwhile the joint 12% of
lever 2 and bell crank 12, ensures the lever 2, being forced inwards, its arm 4 in
like way putting grip by hook and chain upon the ruffle 7
The shuttle guards 30 I construct in the form of hooks or fingers, which I attach
to and at intervals of the length of the hand rail 31, or the hooks or fingers 30, are
carried by a rod or bar 32 supported by and free to move, in brackets 33, attached
to the hand rail, so that they may be turned up, out of the way, when the shuttle
18 being removed
Having now particularly described and ascertained the nature of iny said
invention, and in what manner the same is to be performed, I declare that what
I claim is
-
1 The intermediate levers, 1, 2, in combination with the Jack levers and healds
and attached thereto and operating in connection therewith in manner and for
purpose described and substantially as illustrated by Fig 1, of the annexed
drawings
2 The mechanism described and illustrated by Fig 2, and 3, of annexed
drawings wherein the movement of the vibrator is utilized to operate (through
the intervening connections) the wheel 11, and regulate the tension as on the
rod 10 and thereby the action of the levers, 1, 2, and weight or grip of the chains
on the neck of the beams is determined
3 The levers 1, 2, connecting rod 9, lever and weight 12, 28, parts 5, 6, 7, all
in combination and substantially as illustrated by the drawing Fig 4, hereunto
annexed
4 The fingers 30, fixed into and combined with the hand rail 31 or attached to
the cross bar 32, mounted in brackets 83 as and for purpose herein described and as
illustrated by drawings annexed.
Dated this 25th day of February 1886