Improvements in Apparatus for use in the Weaving of Inner Selvages.
Year: 1890

page_text: Date of Application, 24th Dec., 1890
Complete Specification Left, 24th Sept., 1891-Accepted, 24th Oct.,
1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for use in the Weaving of Inner
Selvages.
We, JOSEPH HARGATE CLIBRAN of Altrincham in the County of Chester
Nurseryman and GEORGE BROWNING of Sussex Street, Lower Broughton
Salford in the County of Lancaster Mechanical Engineer do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in the apparatus for which we have
applied for Letters Patent No. 15701 of 1890 and is designed with the object of
making it more reliable in action and of being attached to or worked from the
breast beam instead of from the top bar or rail of the framing.
In weaving cloth with a close pick we find it is desirable to provide mechanism
to hold the two edges which form the internal selvages parallel as the cloth is being
woven and for this purpose we provide a series of pins or needle points which
engage with the cloth to prevent it being narrowed by any tension upon it caused
These pins must be
by the feed of the loom after the reed has beaten up.
arranged to engage with the cloth within one or two picks of the last weft thread
and to rise out of the way of the cloth to allow it to feed forward as the reed
beats up. These pin or needle points are attached to a pivoted bar with a cross
piece or T head to carry the needles. The bar at its other end is acted upon by a
cam on the cam shaft which causes the T end to rise as the reed approaches it and
to fall again and engage with the cloth as the reed recedes.
The nippers which grip and hold the weft threads whilst being cut are in this
case carried by a sliding bar and actuated direct by three cams on the cam shaft
one of which moves the slide to and fro, the second cam gives the desired up and
down motion to the nipper ends and the third cam operates the upper jaw of the
nippe to open and close it. Suitable springs are used to effect the return
movements and the slide and the nipper levers may be of any convenient. shape to
engage with the cams.
The nippers have a vertical slot for a knife blade and the upper jaw carries the
knife which slides along with it part of its travel and is then held by a stop which
causes the weft thread to be passed to and fro against the edge of the knife and
so cut.
The drawing in hooks are carried on a sliding frame being pivoted to a rocking
lever or tilting piece. They are thus capable of receiving three independent
movements, one horizontally to and fro with the slide one
a vertical radial
movement on the rocking lever or tilting piece and the other a horizontal radial
movement on their own pivots. These are each connected with a suitable cam on
the cam shaft by means of a lever or the like which bears upon the cam.
The several parts of the apparatus working as above described are affixed to or
carried by a bracket of any convenient size or shape preferably hinged with a top
piece or cover and provided with a pair of temple rollers at each side of any
ordinary construction. The bracket is affixed to the breast beam by a screw or

page_text: bolt and the cam shaft is driven by a chain or other gear from any rotating part of
the loom.
Dated this 23rd day of December 1890.
WM. P. THOMPSON.& Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for use in the Weaving of Inner
Selvages.
We, JOSEPH HARGATE CLIBRAN, of Altrincham, in the County of Chester,
Nurseryman, and GEORGE BROWNING, of Sussex Street, Lower Broughton,
Salford, in the County of Lancaster, Mechanical Engineer, 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 improvements in the apparatus for which we have
applied for Letters Patent No. 15701 of 1890 and is designed with the object-of
making it more reliable in action and of being attached to or worked from the
breast beam of the loom instead of from the top bar or rail of the framing.
It consists essentially in arranging and adapting the several parts of the
apparatus horizontal instead of vertical as in the former Patent; in the arrange-
ment of the actuating parts and in the addition of certain needle points and temple
rollers to prevent the running in of the selvage or narrowing of the cloth."
It will be fully described with reference to the accompanying drawings.
Fig. 1, is a skeleton section of loom showing the apparatus in position.
Fig. 2, side elevation of the apparatus.

page_text: independent movements are given to the nippers, a to and fro movement to the
carriage F by the cam V and a movement on the pivot el to the lever E by the
cam W. The cams V, W, thus give the required movements to the nippers A to
open to embrace the weft thread; to advance forward; to close and hold the
thread; to lower and place the thread over the hooks C and to retire before again
commencing the same cycle of operations. The carriage moves to and fro in
guides on the frame which encloses the apparatus. Pins all all are fixed to the
bottom jaw a and project into holes in the spring jaws a¹ to prevent the thread
slipping too far back into the jaw before being cut. Suitable springs are used to
effect. the return movements the spring drawing the nipper carriage F back and
the springs e¹ the nipper lever E.
The knife blade B is attached to a rocking lever or tilting piece C" pivoted to
the carriage H which carries the hooks C and moves to and fro therewith being
lifted up and down by the cam Y acting on the end of the pivoted lever C". The
knife is moved back while the nippers remain stationary thus giving the necessary
cutting action on the thread which is held by the nippers against the edge of the
knife.
The hook arms C' are pivoted on the pins to the rocking lever or tilting
piece C pivoted on the pins or adjustable centres to the hook carriage H which
receives a to and fro movement from the cam Z acting against the bowl or
runner . The hook carriage H is comprised of the frame which is guided in
its backwards and forwards movements by a slide sliding in a bracket m
attached to the casing M. The slide 4" carries a bowl engaging the cam Z, and
receiving its motions therefrom. To prevent the hook carriage tilting a bowl
is mounted on it at the opposite side to the slide h" and traverses in a grooved
slide m¹ fixed to the casing. The hook arms C₁ are moved about their centres c
by the lever c¹ pivoted to the upright frame of the carriage H the lower end of
the lever e¹ engages with or comes in contact with the pins or studs c" while the
upper end is moved from the cam T by the lever which rests upon it. The
bowls are placed on the ends of the levert to reduce the friction. On
the face of the depending arm of the lever c' is attached a plate which can be
adjusted to compensate for wear by the screws which secure it. The studs c¹ come
against this plate and the movement of the hooks C can be adjusted by moving or
setting the plate c. The drawing in hooks C receive three independent
6 movements, a horizontal movement to and fro with the carriage H imparted by
the cam Za vertical radial movement on the rocking lever C imparted by the
cam ; and a horizontal radial movement on the pivots & imparted by the cam T
through the lever and lever c¹.
In addition to those parts which correspond with what are described in the
Specification of our former Patent No. 15701 of 1890 we find it desirable in
weaving cloth with a close pick to provide mechanism consisting of needle points
and temple rollers L to hold the two edges parallel which form the internal
selvages and prevent the cloth becoming narrowed by any tension upon it caused-
by the feed of the loom or the action of the drawing in hooks C. For this purpose
we provide a number of pins I carried at the end of a pivoted lever J which are
arranged to engage between the warp threads of the cloth within one or two picks
of last inserted weft thread and to rise out of contact with the cloth to allow it to
feed forward as the reed beats up.
The pins I, are attached to a cross head or T-head i at the end of the lever J
and the lever J is pivoted to the fixed cover by the pin j. Motion is imparted to
the lever by the cam U by which the pins are caused to rise as the reed
approaches them and fall again and engage with the cloth as the reed recedes.
The pins are rigidly attached to the lever J and in front of them attached
to the edge of the lower frame a supporting bracket or plate K is placed the edge
or lip k of which supports or holds up the cloth while the pins I pass between
the warp threads. is a spring to force the lever J towards the cloth.
The pins I on the end of the lever J may be raised and held out of contact with

page_text: -
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the cloth, when it is desired to turn, the loom back, by means of the lever J¹ the
shorter, arm of which may be brought to bear upon, the lever J. In the position
shown in the drawings the lever J' is out of contact with the lever J.
At each side of the nippers A there is placed a pair of temple barrels L of
ordinary construction which act in the usual way to prevent the running in of the-
edges or narrowing of the cloth during the weaving.
The casing or cover M is attached to a bracket m affixed to the breast beam N
o¹. The chain o
by screws or bolts and the apparatus is driven by the chains
passes round the chain wheel o" on the end of the crank shaft O of the loom. onto
the chain wheels on the shaft S supported by the brackets s' on the top rail S¹
and the chain o' passes round the wheels on the shaft S onto the wheel
shaft R of the apparatus.
on the
The operation is very similar to that described with reference to our former
-Patent: The nippers A and the hooks Care caused to move forward simul-
taneously towards the rced, the nippers A by the cam V acting on the carriage F
and the hooks by the cam Z acting upon the carriage. H. When the nippers
have been advanced so that the jaw a and the springs a' embrace the weft yarn
last placed in the shed the lever E' is raised, allowing the spring jaws to close and
immediately after, the knife B is drawn back by the movement of the hook
carriage H and the weft severed.
When the weft has been cut by the knife B the hooks or fingers C which are in
the position shown are gradually lowered until they rest upon the top warp threads
of the shed and press down the threads upon which they rest so that the points are
about the centre of the angle of the shed. They are then by the action of the
cam T-drawn into the. shed towards the nippers. At the same time the nippers
which have been gradually raised by the cam W-fall slightly and are moved back
laying the weft thread over the hooks. The hooks C then receive a further
movement from the cam T and are drawn back through the shed drawing the cut
ends of the weft threads from between the jaws a a' of the nippers, and laying them
into the shed thus forming a perfect double weft selvage. The hooks and the
nippers A are then returned to their original position as shown.and after each pick
or shot of the shuttle the same operation is repeated.
We would here remark that we are acquainted with the Specification of Letters
Patent granted to William Simpson No. 8056 of 1890, and we wish it to be
understood that we do not claim anything which is described and claimed therein.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that
what we claim is :-
1. An apparatus for forming inner selvages in the weaving of cloth having two
horizontally reciprocating carriages to which the nippers which grip the weft
thread and the drawing in hooks which draw the cut ends of weft back into the
shed are respectively attached or pivoted substantially as described.
2. In an apparatus for forming inner selvages the combination with nippers (such
as A) knife (such as B) and drawing in hooks (such as C) of pins which engage
with or enter between the warp threads to prevent any narrowing of the cloth
substantially as described.
3. An apparatus for forming double inner selvages in the weaving of cloth with
the several parts constructed and arranged substantially as described and shown.
Dated this 23rd day of September 1891.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.