Improvements in Looms for Weaving Looped or "Terry' Fabrics.
Year: 1896

page_text: Date of Application, 23rd May, 1896
Complete Specification Left, 19th Feb., 1897-Accepted, 27th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in Looms for Weaving Looped or "Terry'
Fabrics.
" Towel
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley,
in the County of York, Machine Maker, and SIMEON JACKSON, of the same
address, Manager, do hereby declare the nature of this invention to be as
follows:-
It relates to looms for weaving looped towel or "Terry" fabrics, and consists in
the employment of a specially arranged dobby mechanism for automatically
regulating the other motions or mechanisms of the loom, in addition to the healds,
with the object of very considerably reducing the number of pattern lags which
have hitherto been necessary to produce this class of goods.
To effect our object, we make use of the dobby mechanism described in
Specification of Letters Patent No. 25237-1894; wherein two separate pattern
cylinders are employed, each operating or controlling double acting indicating
levers or feelers; the said cylinders being put into and out of operation by means
of a supplementary cylinder. The supplementary cylinder in this invention is
further employed for regulating or controlling the action of separate portions of
the dobby mechanism, and also to regulate the shuttle box motion.
In order to make clear the functions of the supplementary cylinder it is necessary
to explain the construction of the fabric. A looped towel fabric consists of two or
more distinct weaves or sections. These are, the plain portion, the chain stitch,
the looped portion, and the gall or fringe. In order to produce the above effects
various motions of the loom have to be put into and out of action. Thus, for the
plain portion the threads are woven very tightly, or crammed, and the setting up
motion is partly suspended; for the chain stitch the shuttle boxes are operated to
produce the different designs. The looped portion is produced by putting into
operation the "Terry" motion, and the fringe or gall is produced by an eccentric
on low shaft coupled with connecting rod and lever to take up motion controlled
direct from dobby. All these motions have been previously operated or controlled
from the dobby, but the peculiar feature of our invention is the method employed
for the controlling of the different levers of the dobby, and thereby effecting a
great reduction in the length of the pattern lags to produce the class of goods
before named.
The dobby levers are thus employed for various purposes; some being employed
to control the healds, some for regulating the setting up motion, and others for
putting into operation the "Terry" motion. In order to effect the control of these
various levers and the shuttle box mechanism, the supplementary cylinder
is provided with additional rows of pegs, each operating on separate levers.
Seven rows of pegs are provided for the following purposes:-Two for changing
the operations of the two cylinders, as described on the before named specification
one for forming the fringe or gall, one for the setting up motion, one for the
stoppage or starting of the "Terry" motion, and two rows for the shuttle box
mechanism.
For the chain stitch the healds are controlled by the operations of the front
cylinder, the peg surface of which is arranged to operate the dobby levers for this
purpose, while the peg surface of the back cylinder is arranged to operate s the

page_text: dobby levers for the other purposes named in addition to the healds. The levers
acted upon by the peg surface of the supplementary cylinder are coupled to
suitable rods and levers, which operate upon the indicating levers or feelers of the
dobby, putting same into or cut of control of the peg surface of the cylinder as
the case may be, whereby the operations of the dobby are regulated, as may be
necessary for the before named purpose.
The method of pro lucing the loop or "Terry" from the dobby is somewhat
similar to that described by us in Specification of Letters Patent No. 9313 of
1895; that is so far as the employment of a horizontal lever is concernel, which
is raised by a cam and held up or allowed to drop, accor ling to the operation of
the dobby. This lever, however, instead of being coupled to the back rail as
therein described, is coupled by an arrangement of levers and rods to the loose
reed, whereby same is pushed back each time the horizontal lever is allowed to
drop, thus producing the loop or "Terry."
Dated this 18th day of May 1896
J. SIDNEY CRITCHLEY,
9 Charles Street, Bradford, Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Looms for Weaving Looped or "Terry" Towel
Fabrics.
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley,
in the County of York, Machine Maker, and SIMEON JACKSON, of the same
address, Manager, 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 :-
It relates to looms for weaving looped or towel fabrics, and consists in the
employment of a specially arranged dobby mechanism for automatically regulating
the other motions or mechanisms of the loom, in addition to the healds, with the
object of very considerably reducing the number of pattern lags, which have
hitherto been necessary to produce this class of goods. It also relates to mechanism
arranged to control the movement of the loose reed, for the formation of the terry
in this class of loom.
A looped towel consists of two or more distinct weaves or sections. These are
the plain portion, the chain stitch, the looped portion, and the gall or fringe. In
order to produce the above effects, various motions of the loom have to be put
into and out of action. Thus, for the plain portion, the threads are woven very
tightly, or crammed, and the setting up motion is partly suspended; for the chain
stitch, the shuttle boxes are operated to produce the different designs; the looped
portion is produced by putting into operation the terry motion; and the fringe or
gall is produced by an eccentric on the lowshaft coupled with connecting rod and
lever to take-up motion, controlled direct from dobby.
All these motions have been previously operated or controlled from the dobby,
but the peculiar feature of our invention is the method employed for the controlling
of the different levers of the dobby, and thereby effecting a great reduction in the
length of the pattern lags to produce the class of goods before named.
The method of producing the loop or terry from the dobby is somewhat similar
to that described by us in Specification of Letters Patent No. 9843 of 1895, that
is, so far as the employment of a horizontal lever is concerned, which is raised by
a cam, and held up or allowed to drop, according to the operation of the dobby.
This lever, however, instead of being coupled to the back rail, as therein described,

page_text: is coupled by an arrangement of levers and rods directly to aunger, moved
loosely on the stop rod; on this finger are formed two lips arranged to receive two
regulation screws. These screws are brought into contact with one of the two or
more fingers, which are rigidly mounted on the stop rod, and hold the reed in
position.
When the dobby indicates, the loose finger is in its normal position, that is, it
passes, whilst the slayboard is approaching its front centre, on the under-side of an
anti-friction roller, which is secured to the breast rail of the loom, and thus it
holds the reed firmly in position. When, however, the dobby does not indicate,
the said loose finger is slightly raised, so that it passes on the upper side of the
said roller, and thus the loose finger is raised sufficiently to release the reed.
In order to explain fully our invention, we append hereto three sheets of
drawings marked with letters and figures of reference, and in all the figures of such
drawings, like letters and figures denote like parts.
Fig. 1 represents an elevation of the dobby, arranged according to our
invention.
Fig. 2 is a front view of the loom and
Fig. 3 an end view of same.
Figs. 4 & 5 are details hereinafter referred to.
The
In carrying into effect our invention, we make use of the dobby mechanism
described in our Specification of Letters Patent No. 25237 of 1894. This dobby
has two separate pattern cylinders A & A 1, each operating or controlling double
acting indicating levers or feelers A 2, the said cylinders being put into and out of
operation by means of two levers A 3 & A 4, and mechanism in connection
therewith, which are operated upon by a supplementary cylinder A 5.
supplementary cylinder A 5, in this, our present invention, is extended, so that it also
regulates or controls the automatic motions in connection with this class of loom.
Preferably, we adapt the said supplementary cylinder A 5 for 7 indicating
levers as follows:-2 levers (see Fig. 4) A3 & A 4 for putting into or out of
operation the two cylinders A & A 1; 1 lever B for regulating the terry or loop
motion; 1 lever C for regulating the cram or take-up motion; 1 lever D for the
gall or fringe motion, and 2 levers E & E1 for the box motion."
Our method of connecting the dobby mechanism is as follows,-The indicating
lever D (Fig. 4) is connected, by rod D 1, to a lever D 2, secured to the rod D 3,
and to the latter is also secured a finger D4. The finger D4 is brought into
contact, by means of the vertical sliding piece D 5, with two indicating levers of
the series A 2, and these indicate for a movement of a lever of the series A 6
(Fig. 1) by means of the levers A 7, needle A 8, catches A 9 & A 10 and baulk A 11.
The said lever of the series A 6 is connected to the gall or fringe motion hereinafter
described.
The indicating lever C, (Fig. 4) is connected by a rod C1 to lever C 2, mounted
loosely on the shaft D 3, and the lever C 2 is connected by strap C 3 to a finger C 4,
and the latter operates, by the vertical sliding piece C 5, two levers of the series A.6.
One of these levers is connected to the take-up motion, and the other to the warp
beam, as shown hereafter.
The indicating lever B (Fig. 4) is connected, by rod B 1, to lever B 2, mounted
loosely on the shaft D 3, and the lever B 2 is connected by strap B3 to a finger B4,
and the latter operates by the vertical sliding piece B 5, a lever of the series A 6,
referred to hereafter, for the formation of the terry or loop motion.
We will now describe our method of connecting the different automatic motions,
for this class of loom, to the dobby. With reference to the terry or loop motion,
we make use of a portion of the arrangement, which is described in our Specification
of Letters Patent No. 9843 of 1895, this portion includes the cam or tappet B 5,
lever B 6, vertical notched rod B 7, catch B8 and lever B9 (see Figs. 2 & 3).
The lever B 9 is connected to a lever of the series A 6, by cord B 29, as shown in
Fig. 1, but instead of the arrangement shown in the before-mentioned specification,
we adopt the following arrangement.

page_text: The lever B6 is connected by rod B 10 (Figs. 2 & 3) to the lever B 11, mounted
on the shaft B 12, and on the latter is also mounted a lever B 13; to the lever B 13
is connected the finger B 14 by the rod B 15. On the finger B 14 are formed two
lips B 16 & B 17, which receive the two regulation screws B 18 & B 19; these
regulation screws are in contact with a projection B 20, formed on one of the
two or more fingers B 21. The two or more fingers B 21 are connected to the
shaft B 22, and are in contact with the reed B 25 (see Fig. 3) and their motion is
regulated by the before-mentioned screws B 18 & B 19. At each revolution of
the cam B5, the lever B6 is raised sufficiently to lift the notch of the rod B7
clear of the catch B 8. If then the pattern surface of the supplementary
cylinder A 5 indicates for a movement of the lever A 6, then the rod B7 engages
with the catch B 8, and the finger B 14 is then in its normal position, that is, it
passes, whilst the slayboard F is approaching its front centre, on the underside of
the anti-friction roller B 23; this roller is mounted loosely in a stand B 24, which
is attached to the breast rail E 1 of the loom. By this arrangement, the finger B 14
is lowered causing the regulation screws B 18 to act on the projection B 20 of the
finger B 21. Thus the reed 13 25 is held firmly in position, and the terry is beaten
up and forms the loop. When, however, the dobby does not indicate, the notched
rod B 7 descends and permits the finger B 14 to rise, so that it passes, whilst the
slay board is approaching its front centre, on the top side of the anti-friction
roller B 23, which is attached to the breast rail E 1 of the loom. By this arrange-
ment the finger B 14 is further raised, and thus releases the reel B 25."
It will be seen from Figs. 2 & 3, that we attach a spiral spring B 30 to a
projection formed on the finger B 21. By the aid of this spring, the reed B 25 is
held firmly in its forward position during the whole traverse of the slayboard F,
excepting whilst the said slayboard is about its front centre, when it is operated
upon in the manner before described.
The cram or take-up motion is connected to the before-mentioned dobby in the
following manner. We connect the lever C 5 to the lever of the series A 6, by
the cord C6, and to the lever C5 is attached, by means of the cord C7, the
pushing catch C 8, which operates the catch wheel C9. Thus, as shown in Figs. 2
& 3, when the lever A 6 is not raised, the catch C8 is not in contact with the
catch wheel C 9 of the take-up motion. When, therefore, the weft is required to
be crammed, the supplementary cylinder A 5 does not indicate for a movement of
the lever A 6, to which the take-up motion is connected, and, in this manner the
desired effect is obtained.
As already stated, the pattern surface for the cram or take-up motion, indicates
upon two levers of the series A 6, one of these levers indicates upon the catch C 8,
as described before. The other is connected to a lever C 10, and to this lever we
connect the chain C11, which regulates the tension of the terry warp beam C 12.
Thus, it will be seen, that whilst the weft is being crammed, there is a tension on
the terry warp beam, and the terry warp becomes somewhat tight.
Our method of connecting the gall or fringe motion to the before-mentioned
dobby is as follows:-The lever of the series A 6, which is operated upon by the
pattern surface of the supplementary cylinder A 5, indicates upon the catel D5,
by means of the rod D 6, elbow lever 17 and cord D 8. The catch D 5 operates
a catch wheel D9, mounted on the take-up beam D 13; it is connected to a
lever D 10, which receives its motion from an eccentric D 11, mounted on the
lowshaft of the loom, being connected with the same by the rod D 12. Thus,
when the supplementary cylinder A 5 does not indicate for a movement of the
lever A 6, the catch D5 is placed in contact with the catch wheel D 9, and the
necessary motion is imparted in the manner shown in Figs. 2 & 3.
The shuttle box motion is indicated upon by the supplementary cylinder A 5, by
means of the indicating levers E&E 1, the latter being connected with the said
box motion by the rods E 2 & E3, see Figs. 4 & 5.
We prefer to place the pattern surface for one section of the towel on the front
cylinder A, and the other sections on the back cylinder A 1. As these cylinders

page_text: work in connection with, and are under the control of, the supplementary
cylinder A 5, a great reduction in the length of the pattern lags is effected.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In looms for weaving terry or loop towels, the method of connecting the
automatic movements to the supplementary cylinder of a double cylinder dobby, as
shown and described.
2. In looms for weaving terry or loop towels, the manner of releasing the reed,
and also the manner of holding the saine firm, when required, by means of the
loose finger B 14, regulation screws B 18 & B 19, roller B 23, and the two or more
fingers B 21 mounted on the shaft B 22, as shown and described.
RICHD. L. HATTERSLEY,
SIMEON JACKSON,
Applicants.
RICHD. L. HATTERSLEY,
SIMEON JACKSON,
Applicants.