IMPROVEMENTS IN LOOMS FOR PROVISIONAL SPECIFICATION
Year: 1882

page_text: LETTERS PATENT to Christopher Catlow of Burnley in the County of
Lancaster Overlooker for an Invention of "IMPROVEMENTS IN LOOMS FOR
PROVISIONAL SPECIFICATION left by the said Christopher Catlow at the
Office of the Commissioners of Patents on the 17th August 1882.
CHRISTOPHER CATLOW of Burnley in the County of Lancaster Overlooker
"IMPROVEMENTS IN LOOMS FOR WEAVING
"
This invention relates to improved combination of mechanism employed for
operating the healds-Also for imparting positive motion to the lower heald staves
by separate mechanism and which is applicable to looms generally-To improved
combination of mechanism for holding the cloth roller or cloth beam and to an
improved construction of reed dents.
Apparatus for operating the healds constructed according to this my invention
consist of T head or double crank lever to which a rocking motion is imparted by
crank from the tappet shaft-To the lower arm of the lever is connected a
hooked bar or catch and to the upper arm a L lever the horizontal arm of which
constitutes a hook or catch lever its vertical or upright arm carries a spring for
purpose hereinafter described Between and within the hooked catch levers is a
vertical lever its fulcrum being midway its length and formed by the end of a
curved lever the other or outer end of which carries the cords connected to the
heald staves-The hooked catch levers are caused to engage with and operate the
vertical lever heald lever and healds as required by the patterns of cloth being
woven by means of peg lags cards or other pattern mechanism which will raise the
lower catch lever or lift the upper catch lever clear of its end of the vertical lever―
For example a cylinder and peg lags placed under the bottom catch lever the
cylinder being connected by endless chain or driving band to the cylinder of a
horizontal peg lag arrangement the pegs of which act upon the spring attached to
the upright arm of the ☐ catch lever a blank (or no peg) permits the catch lever
to engage with the vertical lever and change of position of healds follows.

page_text: A convenient arrangement of fulcrum for the vertical levers referred to consists
of an elliptical lug which is received within an elliptical or oblong clip formed
by the end of the curved heald lever affording greatest amount of strength and
admitting of all the levers being kept within the usual gauge.
Mechanism for pulling down and imparting a positive motion to the lower heald
staves consists of a catch attached to and operated by the swing rail crank shaft
or the tappet shaft, the hook or depressor working on a hinge and fulcrum pin
connected to the bottom cross rail of the loom, there being a third or additional
series of heald staves below the ordinary bottom staves when the crank is at its
high centre, the catch or depressor is clear of the additional heald staves but when
the crank is at its bottom centre and the shed is to be opened, the catch or depressor
is then forced down on its pin, or centre by the action of the swing rail crank, or
tappet shaft and the said catch or depressor bears upon the additional heald staves
securing an open shed and the proper delivery of yarn from the beam.
For holding the cloth roller or cloth beam I employ a bracket fixed to the frame
of the loom and secure to the bracket a strap the latter being carried under and
over the bracket so as to create additional friction when weaving long lengths of
cloth the other or loose end of the strap being attached to the ordinary weight.
The reed dents I construct fish backed in shape affording additional strength,
the ends I recess or form a shoulder thereon thereby to prevent the reed dropping
down.

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
17th February 1883.
CHRISTOPHER CATLOW of Burnley in the County of Lancaster, Overlooker
"IMPROVEMENTS IN LOOMS FOR WEAVING"
This invention relates to improved combination of mechanism employed for
operating the healds-Also for imparting positive motion to the lower heald staves
by separate mechanism and which is applicable to looms generally-To improved.
combination of mechanism for holding the cloth roller or cloth beam, and to an
improved construction of reed dents-Apparatus for operating the healds con-
structed according to this my invention consist of T head or double crank lever
to which a rocking motion is imparted by crank from the tappet shaft. To the
lower arm of the lever is connected a hooked bar or catch and to the upper arm
a like bar and hook-Between and within the hooked catch levers is a vertical
lever, its fulcrum being midway its length and formed by the end of a curved lever
the other or outer end of the lever carries the cords connected to the heald staves.
The hooked catch levers are caused to engage with and operate the vertical lever,
heald lever and healds as required by the patterns of cloth being woven, by means
of peg lags, cards or other pattern mechanism which will raise the lower catch
levers or depress the upper catch lever-For example a cylinder and peg lags placed
under the bottom catch lever the cylinder being connected by endless chain or
driving band to the cylinder of a horizontal peg lag arrangement, the pegs of
which act upon the springs attached to the upright arm of the L catch lever a
blank (or no peg) prevents the catch lever engaging with the draw bars of the
vertical lever and consequently no change of position of healds occurs A conve-
nient arrangement of fulcrum for the vertical levers referred to consists of an
elliptical lug which is received within an elliptical or oblong clip, formed by the
end of the curved heald lever affording greatest amount of strength and admitting
of all the levers being kept within the usual guage. Mechanism for pulling down
and imparting a positive motion to the lower heald staves, consist of a catch
attached to and operated by the swing rail-crank shaft-or tappet shaft, the hook
or depressor working on a hinge and fulcrum pin connected to the bottom cross
rail of the loom there being a third or additional series of heald staves below the
ordinary bottom staves. When the crank is at its high centre, the catch or
depressor is clear of the additional heald staves but when the crank is at its
bottom centre and the shed is to be opened, the catch or depressor is then forced
down on its pin or centre by the action of the swing rail, crank or tappet shaft
and the said catch or depressor bears upon the additional heald staves, securing
an open shed and the proper delivery of yarn from the beam.
For holding the cloth roller or cloth beam I employ a bracket fixed to the frame
of the loom and secure to the bracket a strap, the latter being carried under and
over the axles of the taking up roller and cloth beam so as to create additional
friction when weaving long lengths of cloth, the other or loose end of the strap
being attached to a weight-The end reed dents I construct fish backed in shapo
affording additional strength the ends I recess or form a shoulder thereon, thereby
to prevent the reed dropping down.
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 invention may be fully
understood I have hereunto annexed 6 sheets of drawings and have marked same
with figures of reference like figures denoting like parts.

page_text: DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a front elevation of the loom rails, shewing my improvements in
position Fig. 2. is an end elevation of Fig. 1 partly in section-Fig. 3 is a back
elevation of the dobby-Fig: 4 is a sectional elevation of the dobby-Figs 5 and 6
are enlarged views of levers and catch levers-Figs 7 and 8 are side and end
elevations of dobby having card cylinders below the upper draw bars and levers
and driven by spur gear-Fig: 9 is a sectional elevation of Fig 7-Figs 10 and
11 are front and end elevations of apparatus for pulling down the heald staves by
positive motion-Figs 12 and 13 are end and front elevations of modifications of
Figa 10. 11-Figs 14 and 15 are front and end elevations of apparatus for holding
the cloth roller. Figs 16 and 17 are elevation plan and section of reed supporting
dent.
At 1 is a T head or double crank lever to which a rocking motion is imparted
by crank 2, from the tappet shaft 3-To the lower arm of the lever is connected
a hook draw bar or catch 4 and to the upper arm a similar bar 5, the bars 4. 5
receive practically parallel motion through the slotted levers 4. 5. and which
engage with catch levers 6 and 7 which carry springs 8. 8. for purpose herein-
after described-Between and within the hooked catch levers 6. 7. is a vertical
lever 9 its fulcrum 10 being midway its length and formed by the end of a curved
lever 11 the other or outer end of the lever 11 carries the cords 12 connected to
the heald staves 13. The hooked catch levers 6. 7 are caused to engage with and
operate the vertical lever 9 curved heald lever 11 and healds 13 as required by the
patterns of cloth being woven by means of peg lags 14 (cards or other pattern
mechanism) which will raise the lower catch lever 6 or depress the upper catch
lever 7. The action is as follows-A peg 14 on the barrel 14ª will depress the
spring 8 lowering the catch lever 7 that its notch 70 engages with the draw bar 5
and at the same time compresses the spring Sa on the grate cross bar 9a the motion
of the lever (in direction of the arrow) will carry out the catch lever 7 and on the
return movement of lever 1 if there be no peg but a blank (as shewn by drawing)
the spring 8 will lift the catch lever 7 clear of the bar 5 the curved end 7b of the
lever 7 coming in contact with the stop bar 8b and prevents the spring 8 bearing
against the barrel 14a-If however the lever 1 draw bar 5, and catch lever 7-(5
and 7 being in contact)-are returned by the lever 1 when a peg is in position to
act (see Fig 6) then the spring 8 will by contact with the peg 14, be compressed
so as to permit the draw bar 5 to slip under and to the front of the catch 7a into
position to act again as descended-The lower catch lever 6 acts in like manner to
the upper catch lever 7 there being no spring 8ª required because the lever 6 falls
by gravitation on to like drop bar 8b clear of the barrel 14-It will be seen the
catch levers 6.7 are in direct communication with the peg barrel (or lattice) no inter-
vening needles or heavy ended levers being required as heretofore-A convenient
arrangement of fulcrum connection for the vertical levers 9 consists of an elliptical
lug 18 which is received within an elliptical or oblong clip 19 (in which is pin 19a)
the clip 19 is formed on the end of the curved heald lever 11 and affords great amount
of strength and admitting of all the levers being kept within the usual guage.
Mechanism for pulling down and imparting a positive motion to the lower heald staves
consists of a catch 20 attached to and operated by the swing rail 21 (the crank
shaft or the tappet shaft) the hook or depressor 22 working on a hinge and fulcrum
pin 23 Connected to the bottom cross rail 24 of the loom-there being a third or
additional series of heald staves 25 below the ordinary bottom staves. When the
crank is at its high centre the catch or depressor 22 is clear of the additional heald
staves 25 but when the crank is at its bottom centre and the shed is to be opened
the catch or depressor 22 is then forced down on its pin or centre 26 by the action
of the swing rail 21 crank or tappet shaft and the said catch or depressor 22 bears
upon the additional heald staves 25 securing an open shed and the proper delivery
of yarn from the warp beam-A modification of above is shewn at Figs 12

page_text: and 13 fitted to the loom consisting of a tappet on the tappet shaft 20 the treaddile
lever 21 and friction bowl 22 connected by link or rod 23 to a second lever 24
having its fulcrum 25 on the cross rail 26 a series of pulleys or levers 27 carried
on fulcrum or stud attached to the cross binders 28 the cords 29 and spring 30 for
operating the lower heald staves 31 are passed around the pulleys 27 and attached
to the spiral spring 29-The action is as follows The tappet 20 operates the
lever 21 and by the link 23 and lever 24 and bar 28 acts upon the snug 29 on
the bowls 27 thereby pressing the lever 27 and by its cord 29 ensuring all the
staves being drawn down-For holding the cloth roller or cloth beam I employ a
bracket 31 fixed to the frame of the loom and secure to the bracket a strap 32 the
latter being carried under and over the axles 23. 24 of the cloth roller and taking
up roller so as to create additional friction when weaving long lengths of cloth the
other or loose end of the strap being attached to a weight 35-The end reed
dents 36 I construct fish backed in shape affording additional strength and in
the ends 37 I recess or form a shoulder 38 therein so as to prevent the reed
dropping down.
Having thus fully described the nature and particulars of this my said invention
together with the manner in which the same is to be or may be performed or
carried into practical effect I would have it understood that what I claim as my
invention is.
Firstly The construction and combination of parts constituting the improved
mechanism for operating the healds as illustrated by Figs 5. 6 of the drawings and
herein fully described.
Secondly The catch levers 6. 7 having springs 8. 8. 8ª and stop pieces 8b gb
as illustrated by Figs 5 and 6 and herein fully described.
Thirdly The elliptical lug of lever 9 and the elliptical clip 11 in combination
and constituting the improved hinge or joint as herein described and illustrated
by drawings Figs 5 and 6 and by details of same.
Fourthly. The combination of parts constituting the improved apparatus for
holding down the healds (when the shed is open) as illustrated by Figs 10 and 11
or the modification as illustrated by Figs 12. 13.
In Witness whereof I the said Christopher Catlow have hereunto set my
hand and seal this fourteenth day of February in the year of our Lord one
thousand eight hundred and eighty three.
Witness
WALTER BRIERLEY
Patent Agent
Halifax.
CHRISTOPHER CATLOW (L.S.)