IMPROVEMENTS IN LOOMS FOR WEAVING."
Year: 1881

page_text: LETTERS PATENT to Christopher Catlow, of Burnley, in the County of
Lancaster, Overlooker, for an Invention of "IMPROVEMENTS IN LOOMS
FOR WEAVING."
PROVISIONAL SPECIFICATION left by the said Christopher Catlow at the..
Office of the Commissioners of Patents on the 11th March 1881.
CHRISTOPHER CATLOW, of Burnley, in the County of Lancaster, Overlooker.
"IMPROVEMENTS IN LOOMS FOR WEAVING."
This Invention relates to certain improvements for securing on abscence of
weft the stoppage of the loom when the shuttle is in the box nearest the weft
fork; to improved bar temples; to improvements in the break action; to improved
mechanism for operating the healds for plain weaving; to improved letting back
appliances, and for counterbalancing the strain of the heald springs of the dobby.
This Invention also relates to improved appliances for working the peg or barrel;
to improved guide studs and plates in connection with the heald cords and heald
staves; to improved appliances in pile or terry weaving apparatus, and in the use
of gear wheels and tension rollers, so as to reverse the ordinary direction of rotation
of taking up and cloth rollers.
Firstly. In connection with weft hammer is a lever acted upon by a double left
tappet on the tappet shaft, so that when the weft is absent the fork cannot act
until the shuttle is in the "fork box," or box nearest the weft fork; the break
lever and weight are connected by rod with a handle and trigger near the stop
handle, or the handle may be applied directly to the break lever.
Secondly. To temples known as the angle bar temples, which heretofore were
constructed of a straight bar; this I curve or wave for a portion of its distance
near the centre, in order that the weaver may have a clear and obstructed view of
the edge of the cloth.
Thirdly. For working the peg or pattern barrel I employ a pair of pendant
catches attached to the "lifting bar," which gives motion to the catches, so that
one pushes on a notch on one side of the catch wheel, the other pulls on the
opposite side, giving continuous rotary motion to the barrel and pegs.

page_text: Fourthly. In the use of the grooved or recessed guide studs in which the heated
bands are received and worked; this ensure the heald staves being maintained
at proper and regular distances apart, and a guide plate for steading the lower
heald staves.
Fifthly. For pile or terry weaving I apply a back bearer having three bars, the
bottom one being extended, and on its end is a lever; the other end of the latter
rests upon and is operated by a three left tappet attached to a wheel of a stud;
a pinion on the ordinary tappet shaft drives the wheel and three left tappet. The
warps are passed through, under, and over the rods referred to, so that the action of
the three left tappet upon the rods causes the warp to be eased forwards, then
taken up, whilst a terision bar at the front of the loom connected by bell crank
levers and springs takes up, so as to vary the fell of the cloth and to admit of the
loops and pile being formed.
Sixthly. The stud of the break lever I place near the axis of the break wheel,
and mount the break lever and break upon the stud, constructing and arranging
the said break so as to obtain a greatly increased break power, whereby con-
siderable saving in the weights employed and labour of lifting and setting same
is saved the weaver.
Seventhly. For working the healds in plain weaving I employ four levers, the
front one being connected with the opposite back one by means of spiral spring,
the remaining front one being connected by spiral spring to the off or diagonal
back lever; each pair on the same plain or line are connected by means of rocking
fingers or projections, quadrants, hooks, and straps being applied at the other or
outer ends of each lever as ordinary.
Eighthly. For letting back when the weft is broken I employ an escapement
catch working in catch wheel on axle on the ordinary catch wheel; the escapement
lever is worked by the slag sword, the usual finger rod and holding catch being
employed for raising the escapement lever when necessary to let back.
Ninthly. For easing the action of the lever operating the healds of the dobby,
and counteracting the strain of the heald springs,
I employ a spiral spring applied between the fulcrum of the lever and its outer
end, or end connected by rod with the crank..

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Christopher Catlow in the Great Seal Patent Office on the
10th September 1881.
CHRISTOPHER CATLOW, of Burnley, in the County of Lancaster, Overlooker.
"IMPROVEMENTS IN LOOMS FOR WEAVING."
This Invention relates to certain improvements for securing on absence of weft
the stoppage of the loom when the shuttle is in the box nearest the weft fork;
to improved bar temples; to improvements in the break action; to improved
mechanism for operating the healds for plain weaving; to improved letting back
appliances, and for counterbalancing the strain of the heald springs of the dobby;
to improved appliances for working the peg or barrel; to improved guide studs
and plates in connection with the heald cords and heald staves; to improved
appliances in pile or terry weaving apparatus; and in the use of gear wheels and
tension rollers, so as to reverse the ordinary direction of rotation of taking up and
cloth rollers.
Firstly. In connection with weft hammer is a lever acted upon by a double lift
tappet adjustable by slot or holes on the tappet shaft, so that when the weft is
absent the fork and break lever cannot act until the shuttle is in the "fork box,"
that is, the box nearest the weft fork; the break lever and weight are connected
by rod with a handle and trigger near the stop handle, or the handle may be applied
directly to the break lever.
Secondly. Temples known as the angle bar temples, which heretofore were
constructed of a straight bar; this I curve or wave for a portion of its distance or
length near the centre, in order that the weaver may have a clear and unobstructed
view of the edge of the cloth.
Thirdly. For working the peg or pattern barrel I employ a pair of pendant
catches attached to the "lifting bar," operated by crank shaft or other going part,
which impart intermittant rotation to the pattern barrel, so that whilst one catch
is engaged and pulls up the notch of a catch wheel, the other catch is being raised
into position to act upon by depressing the tooth or notch, and so on at each motion
of the lever, imparting continuous intermittant rotary motion.
Fourthly. In the use of the guide studs on or over which the heald bands are
received and worked; these ensures the heald staves being maintained at proper
and regular distances apart, and like studs for steadying the lower heald staves.
Fifthly. For pile or terry weaving I apply a back bearer having three bars, the
bottom one being extended, and on its end is a lever; the other end of the latter
rests upon and is operated by a three lift tappet attached to a stud wheel; a
pinion on the ordinary tappet shaft drives the stud wheel and three lift tappet.
The beam and terry warps are passed through, under, and over the rods, so that the
action of the three lift tappet upon lever and rods causes the warps to be eased.
forwards, then taken up, whilst a tension bar at the front of the loom connected
by bell crank levers and springs "takes up," so as to vary the fell of the cloth,
and to admit of the loops and pile being formed.
.
Sixthly. The break lever is provided with an extended arm and stud for carrying
the break block so as to admit the stud for break lever being nearer the axis of
break wheel, securing greater power, and effecting considerable saving of weights
and labour of lifting and setting same.
i
Seventhly. For working the healds in plain weaving I employ four levers, the
front one being connected with the opposite back one by means of spiral spring,
the remaining front one being connected by means of quadrants, hooks and straps
being applied at the other or outer ends of each lever as ordinary, the arms of levers
being connected by spiral spring.
:

page_text: Eightly. For letting back when the weft is broken I employ an escapement
catch working in catch wheel on axle on the ordinary catch wheel, the escape-
ment lever, which is worked by the slay sword and pin, the usual finger rod and
holding catch being employed for raising the escapement catch when necessary to
let back.
Ninthly. For easing the action of the lever operating the healds of the dobby
and counteracting and counterbalancing the strain of the heald springs I employ a
spiral spring.
Such being the nature and object of this my said Invention I will now proceed
to describe the same in detail, and in order that the same may be fully understood 1
I have hereunto annexed 4 Sheets of Drawings illustrative thereof, and have
marked the same with figures of reference, in which,―
Referring now to Figs. 1 and 2, in connection with weft hammer 1 is a lever
acted upon by a double lift tappet 2, adjustable by slot or holes d (see detail
Drawing, Fig. 13) on the tappet shaft 3, so that when the weft is absent the fork 4 1
and break lever 5 (see detail Drawing, Fig. 14) cannot act until the shuttle is in
the "fork box," that is, the box nearest the weft fork. The break lever 5 and
weight are connected by rod 6 with a handle 7 and trigger 8 near the stop
handle 9, or the handle may be applied directly to the break lever 5, as shewn
at 10.
At Fig. 3 is shewn temples known as the angle bar temples, which heretofore
were constructed of a straight bar; this I curve or wave for a portion of its
distance or length near the centre 11, in order that the weaver may have a clear
and unobstructed view of the edge of the cloth.
Figs. 4 and 5 illustrate apparatus for working the peg or pattern barrel 12; I 2
employ a pair of pendant catches 13, 14, attached to the "lifting bar" 15 operated
from crank shaft or other going part which gives motion to the catches 13, 14, so
that whilst the catch 13 is engaged and pulls up the notch 16, the catch 14.is
being raised into position to act upon by depressing the tooth or notch 17, and so
on at each motion of the lever 15, so imparting continuous intermittant rotary 3
motion.
Figs. 4 and 5 also shew the use of the guide studs 18, 18, on or over which the
heald bands are received and worked; these ensures the heald staves being
maintained at proper and regular distances apart, and like studs 19, 19, for
steadying the lower heald staves. The apparatus for pile or terry weaving is 3
illustrated by Fig. 6; I apply a back bearer 20 having three bars 20, 21, 22, the
bottom one 20 being extended, and on its end is a lever 23; the other end of the
latter rests upon and is operated by a three lift tappet 24 attached to a stud
wheel 25; a pinion 26 on the ordinary tappet shaft drives the stud wheel 25 and
the three lift tappet 24. The beam and terry warps 27, 28, are passed through, 4
under, and over the rods 20, 21, 22, as shewn, so that the action of the three lift
tappet 24 upon lever 23 and the rods 20, 21, 22, causes the warps to be eased
forwards, then taken up, whilst a tension bar 29 at the front of the loom, con-
nected by bell crank levers 30, 31, and springs 32 (one of the latter at each end)
"takes up," so as to vary the fell of the cloth, and to admit of the loops and pile 4
being formed.
Fig. 14 illustrates the break lever 5 provided with an extended arm 33 and
stud 34 for the break block 35, the arm 33 and stud 34 being constructed, as
shewn, so as to admit the fulcrum stud 36 of the break lever 5 being placed near
the axis of the wheel 37, affording greatly increased power and convenience of 5
application of break,
Figs. 7, 9, and 10 are front, end, and plan views of apparatus for working the
healds 38 in plain weaving; I employ four levers 39, 40, 41, 42, the front one 39
being connected with the opposite back one 41 by means of spiral springs 43, the
remaining front one 42 being connected by means of quadrants 44, hooks and 5
straps 45 being applied at the other or outer ends of each lever as ordinary, the
arms of levers 39, 41, being connected by spiral spring 43.

page_text: No text detected.
Witness,
WALTER BRIERLEY,
Patent Agent,
Halifax & Blackburn.
CHRISTOPHER CATLOW.
(LS.)