Improvements in Heddle and Shuttle-box Operating and Weft-stop Mechanisms of Looms for Weaving.
Year: 1889

page_text: Date of Application, 4th Sept., 1889
Complete Specification Left, 3rd June, 1890-Accepted, 5th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Heddle and Shuttle-box Operating and Weft-stop
Mechanisms of Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY of Keighley in the County of York, Machine
Maker and JAMES HILL of the same place, Manager, do hereby declare the nature of
this invention to be as follows, that is to say :-
It relates firstly to heddle and shuttle-box operating mechanisms of looms
for weaving and consists of arranging and constructing the parts forming these
mechanisms in such a manner that the excessive amount of friction incident to
the use of toothed crank and gearing wheels as also the backlash incident to the use
of swing bars for accomplishing this object, are avoided while the desired operations
are performed with precision; and secondly to weft stop mechanism of the class used in
connection with looms having two or more shuttles which necessitate the position of
the weft fork being in or about the middle part of the slayboard of the loom; and
consists of the arrangement and construction of parts in such a manner that the
number of operating pieces (which means, as is well known, pieces that get out of
working order) is reduced to a minimum, yet said pieces are made to perform the
functions of weft stop mechanism efficiently.
The first part of this invention is attained by making use of a three armed lever
and other parts, as hereinafter described, for each leaf or heddle. This three armed
lever is mounted upon a stationary shaft, and hinged at the extremity of each of two
of its arms that are opposite each other, is a catch having notches so formed that it
may be operated or moved positively by a pair of draw bars in both forward and
backward directions.
The other arm of this three armed lever is coupled by a suitable connecting rod to
a bell-cranked lever which is also mounted upon a stationary shaft, and which is
joined by a connecting rod to the heddle or shuttle box operating lever for
performing the well known functions in the manner common and well understood.
The relative positions and the formations of the various levers and means for
supporting same are such that the shuttle box or heddle operating lever is firmly
held from moving, or is locked, at each extremity of its said movement, at one of its
said extremities by means of one of the connecting rods being brought in line with
the centre of the shaft upon which the bell cranked-lever is mounted, and at the other
extremity by means of the other connecting rod being brought in line with the
centre of the shaft on which the three-arned-lever is mounted and so the object
desired is attained.
Instead of the bell-cranked lever and its connecting rod above described being
employed two straight levers, one mounted upon a stationary shaft and the other
upon the shuttle box or heddle operating lever, the said two levers being joined
together at their free ends so as to form a somewhat "toggle joint," may be employed
with equal advantages.
By the employment of two pairs of draw bars for operating the catches hinged to
the two arms of the three armed lever as above described, the movements of the
heddles or shuttle-boxes may be accomplished at half the rate of speed, as from the
second motion shaft of the loom, as compared with the rate of speed had only one
pair of these draw bars to be employed as is well understood.
This part of our invention further extends to an arrangement of the parts forming
the driving mechanism for imparting intermittent rotary motion to the pattern
cylinder used in connection with the heddle-operating mechanisms above described,
the same being also applicable to the pattern cylinder used in connection with the
heddle operating mechanisms known as Hattersley's positive and non-positive

page_text: dobbies, and consists of constructing and arranging certain parts of said mechanism
so that by its use peg-lags or pattern surfaces, each separate one of which carries
pegs or indicating surfaces suitable for two distinct movements of the heddle
operating mechanism or for two shots of weft in the loom, may be employed, while
the functions well known as
lagging back may be performed without the incon-
venience of said peg-lags or pattern surfaces being disarranged relatively with the
motor parts of the machine.
وو
This is attained by making use of the nogging wheel mechanism as described in
the specification of our patent No. 8109 A.D. 1885, with the exception that we now
arrange the pins in said nogging wheel (which is made to allow this arrangement)
by placing them on opposite sides of the shaft so that they will impart motion to the
crown wheel at opposite times relatively with the driving shaft's rotation, by which
means the movements of the catches are made to suit those of the draw-bars and so
one does not become disarranged with the other.
When making use of a pattern cylinder which has rising and falling or vertically
reciprocatory motion imparted to it as has the one shewn in our specification
No. 810985 above referred to, we make use of a star with a moveable rod (carrying an
adjusting bowl) arrangement for adjusting the position of the said pattern cylinder.
The second part of our invention is attained by forming the partly rotating block
to which the prongs or blades forming the fork are attached as is well known, in
such a manner that its tail piece may be operated by a small projection formed on
a hinged bracket which is caused to partly rotate by the employment of any of the
well known devices used for raising the fork, but preferably by an upright rod
hinged out of centre with the hinging of the slayboard the same being common and
well known.
This hinged bracket has a suitable projecting part in which is formed a notch into
which is made to fit in a certain position the outer end of the tail-piece above
described. This hinged bracket has also a projecting finger and a piece which
arrests its descent in a certain position.
The actions of the foregoing parts are as follows:- Suppose the loom to be in
position for the throwing or picking of the shuttle, in this position the fork is raised
by the projection on the hinged bracket coming in contact with the tail piece of the
partly rotating block, now by the loom moving to beat in the weft as is well known,
should this weft be present the fork is arrested in its descent and so kept clear of the
notched part in the hinged bracket, by which means said bracket is allowed to
descend and its forward finger will pass beneath the projecting knocking-off-finger
which may be any of the well known kind and so the loom will continue in motion,
however should not the weft be present then the fork descends and its tail piece
enters the notch in the hinged bracket and thus arrests same in position so that by the
forward movement of the slayboard it is brought into contact with the knocking-off
finger above described and so the motion of the loom is arrested.
Dated this 3rd day of September 1889.
RICHD. L. HATTERSLEY.
JAMES HILL.
COMPLETE SPECIFICATION.
Improvements in Heddle and Shuttle-box Operating and Weft-stop
Mechanisms of Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY of Keighley in the County of York, Machine
Maker, and JAMES HILL of the same place, 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, that is to say :-
It relates firstly to beddle and shuttle-box operating mechanisms of looms
for weaving and consists of arranging and constructing the parts forming these
mechanisms in such a manner that the excessive amount of friction incident

page_text: to the use of toothed crank and gearing wheels as also the backlash incident to the
use of swing bars for accomplishing this object are avoided while the desired
operations are performed with precision, secondly to weft-stop mechanism of the
class used in connection with looms having two or more shuttles which necessitate
the position of the weft fork being in or about the middle part of the slayboard of
the loom and consists of the arrangement and construction of parts so that the
number of operating pieces (which means, as is well known pieces that get out of
working order) reduced to a minimum, yet said pieces are made to perform the
functions of a weft-stop mechanism efficiently.
In the accompanying sheets of drawings fig. 1 is side elevation of parts forming
heddle operating mechanism made in accordance with this invention and shews the
relative positions of these parts when the heddle coupled thereto is in its lowest
position, and fig. 2 is a similar view to fig. 1 but shews another arrangement whereby
certain parts are dispensed with, while fig. 3 is a similar view to fig. 2 but shews
the relative positions of the various parts when moved to bring the heddle to its
highest position.
Fig. is a side elevation of another arrangement of parts forming heddle
operating mechanism in accordance with this our invention and shews the relative
positions of parts when the heddle is in the position as described in connection with
fig. 3, while fig. 5 is a similar view to fig. 4, but shews the relative positions as
described in connection with fig. 2.
In each and all of said figs. 1, 2, 3, 4 and 5 the framework is omitted in order
that the operating parts may more clearly be shewn, and fig. 4 is the end view of
parts shewn by fig. 4 from which the relative thicknesses of the several parts will
be seen, such relative dimensions of parts in this direction applying also to figs. 1,
2, 3, and 5.
Fig. 6 is side elevation of one of the class of heddle operating mechanisms well
known as Hattersley's dobby, and shows an improvement in construction with the
pattern cylinder operating mechanisms the same being applicable for use in connection
with other mechanisms as hereinafter described.
Fig. 7 shews an arrangement of means for adjusting a pattern cylinder having
rising and falling as well as intermittent rotary motion imparted to it. Fig. 8 is
sectional side elevation of a portion of a loom shewing the application of our
improved weft-stop mechanism, with its several operating parts in their relative
positions during the passage of the shuttle through the warp, while fig. shews the
relative positions of the same parts when the slayboard is beating up the weft.
Fig. 10 is a similar view to fig. 8 but is of enlarged scale and shews only those parts
of the mechanism that are directly attached to the slayboard. Fig. 11 is front
elevation of parts shewn by fig. 10, and is also of enlarged scale. Fig. 12 is a detail
drawing, same scale as figs. 10 and 11, of parts of the weft-stop mechanism herein-
after described.
Like letters and figures of reference indicate like parts throughout the several
views.
The object as set forth by the first part of this invention, is attained by making
use of a three armed lever 1 and connecting rod 2, bell-crankel lever 3, connecting
rod 4 and the common heddle operating or jack lever 5 for each leaf or heddle,
said jack lever 5 being joined in the well known manner to said heddle by cords
or rods.
The three armed lever 1 is mounted upon a stationary shaft. 6 carried by the
framework, and has hinged at the extremities of its arms a a¹ the catches 7 and 8
respectively each of said catches having notches & formed thereon so that they may be
operated positively in either or both directions by the two pairs of reciprocating
draw-bars 9 and 9, and 10 and 10 when put into connection therewith by the
pattern surfaces in a manner common and well understood, the means employed for
operating these said draw-bars being any of those at present in use and well
known.
Instead of the lever 1 having both of its arms a and a' as shewn by fig. 1, one of these

page_text: arms say a¹, may be dispensed with as shewn by figs. 2 and 3 however for purposes
hereinafter described we make use of this extra arm together with the parts connected
with it.
The other arm a* of the lever 1 is coupled by the connecting rod 2 to the lever 3,
which is mounted upon the stationary shaft 11, said lever 3 being coupled by the rod 4
to the jack lever 5, or to the box operating levers 5° (see fig. 13) if used as operating
mechanism for rising and falling shuttle-boxes, said levers 5 being joined thereto in
the well known manner.
The relative positions and the formations of the various levers 1, 3 and 5 (or 5")
and the shafts 6, 11 and 12 (or 12") for supporting same are such that the jack
lever 5, or the box lever 5ª is firmly held from moving, or is locked, at each extremity of
its said movements, at one of its said extremities by means of the rod 4 being brought
in line with the centre of the shaft 11 as shown by figs. 1 and 2, and at the other
extremity by means of the other rod 2 being brought in line with the centre of the
shaft 6. as shewn by fig. 3 or in each case what is technically known as a "dead
centre lock is formed and so the object is attained.
32
Instead of the lever 3 and its rod 2 being employed two straight levers 13 and 14
and their connecting rods 15 and 16 may be employed said levers 13 and 14 being
mounted upon their respective stationary shafts 17 and 18, and joined together and to
the lever 5 by means of the rods 16 and 15 as shewn by figs. 4 and 5, with equally
- good results as herein before set forth. The lever 14 with its rod 16 forming a
"dead
centre lock" when the lever 5 is in its raised position as shewn by fig. 4, while the
lever 13 with its rod 15 forms a similarly rigid hold-fast when the said lever 5 is in
its other position as shewn by fig. 5. In this case also the levers 5ª may be sub-
stituted for the jack lever 5 provided shuttle-boxes are to be operated instead of
heddles.
By the employment of the two pairs of draw-bars 9, 9 and 10, 10ª and their
respective series of catches 7 and 8 for operating the lever 1 as shewn by fig. 1 the
movements of said lever 1 and consequently the movements of the heddles or shuttle-
boxes thereby operated, may be accomplished at half the rate of speed such as from
the second motion shaft of the loom, as compared with the rate of speed had only
one pair of these said draw-bars and one series of catches as shewn by figs. 2
and 3, been employed, as will be understood by those conversant with this class of
machinery.
This part of our invention further extends to an arrangement of the parts forming
the driving mechanism for imparting intermittent rotary motion to the pattern
cylinder used in connection with the heddle-operating mechanisms above described
the same being also applicable to the pattern cylinder used in connection with the
heddle operating mechanisins known as Hattersley's positive and non-positive dobbies
and its application to the latter is shewn by the drawings hereunto appended from
which it will readily be seen how it may be applied to the former, and our said
invention consists of constructing and arranging certain parts of said mechanism
so that by its use peg-lags or pattern surfaces, each one of which carries pegs or
indicating surfaces suitable for two distinct movements of the heddle operating
mechanism or for two shots of weft in the loom, may be employed while the functions
well known as "lagging back may be performed without the inconvenience of
said peg-lags or pattern surfaces being disarranged relatively with the motor parts
of the machine.
"
We attain the object of this part of our invention by making use of the nogging
wheel mechanism as described in the specification of our Patent No. 8109 A.D. 1885
with the exception that we now arrange the pins 19 and 20 in said nogging
wheel 21 (which is formed to allow this arrangement) by placing them on opposite
sides of said wheel 21 or of the shaft 22 so that they will impart motion to the
crown wheel 23 at opposite times relatively with the driving shaft's rotation, by
which means the movements of the catches in the dobby are made to suit those
of the draw-bars and so one does not become disarranged with the other.
When making use of a pattern cyhnder which has rising and falling or vertically

page_text: reciprocatory motion imparted to it as has the one shewn in our specification No. 180985
above referred to, we make use of a star wheel 24 (fig. 7.). with a moveable rod 25
(carrying an adjusting bowl 26) for adjusting by the pressure of the spring 27,
the position of the pattern cylinder upon the shaft of which the wheel 24 is
mounted.
The object of the second part of our invention attained by forming the partly
rotating block 28, to which the prongs or blades 28 forming the fork are attached
in the well known manner so that its tail piece 28 may be operated by a projection 29ª
formed on a bracket 29 hinged to the bearance 30. The said bracket 29 is caused
to partly rotate by the employment of any of the well known devices used for raising
the fork but preferably by that device wherein in upright rod 31 hinged at 31ª out
of centre with the hinging of the slavbard 32 which is at 32ª is employed.
This bracket 29 has a notch 29 formed therein in such a manner as to fit
when in a certain position (as that shown by fig. 12) the outer end of the tail
piece 28. The bracket 29 bas a projecting finger 29 as also a stop piece 29ª
which latter arrests its descent after a certain position is reached..
The actions of the foregoing parts are as follows:-Suppose the loom to be in the
position for the throwing or picking of the shuttle such position being shewn by
fig., the prongs 28 are in their raised position by the projection 29" on the
bracket 29 being brought into contact with, so as to move the tail piece 20", now
by the loom moving the slayboard 32, into the position shewn by fig. 9 or to beat up
the weft, should this weft be present, the prongs 28° are arrested thereby in their
descent and so the piece 28 is kept clear of the part 29 by which means the
finger 29 is allowed to descend and pass beneath the finger 33 which is mounted
rigidly upon the shaft 34 this rod shaft 34 being joined in any of the well known
ways to the mechanism for arresting the motion of the loom and so the loom will
continue in motion however if there is not any weft present then the prongs 28
descend and the tail-piece 28" enters the notch 29 as shewn by figs. 9 and 12. and
thus arrests the bracket 29 in position so that by the forward movement of the slay-
board 32 as above described its finger 29 is brought into contact with the finger 33
and so the motion of the loom is arrested.
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 heald operating mechanism or a dobby the combination of the lever 1
having three arms a, a¹ and a², and being mounted upon a shaft 6, the catches 7 and 8
with their respective draw bars 9, 9 and 10 10" the connecting rods 2 and 4 and
the levers 3 and 5 mounted upon their respective shafts 11 and 12 substantially
as specified, the same being arranged to operate in the manner set forth.
2. The lever 1 having two arms a and a² the shaft 6, the catch 7, the rods 2 and 4,
the levers 3 and 5 and the shafts 11 and 12 in combination the same being formed
and arranged to operate in the manner substantially as herem set forth and for the
purpose specified.
3. The lever 1 having arms a and a², the shaft 6, the rods 2 and 4, the levers 3 and 5ª
and the shafts 11 and 12ª in combination all said parts being formed and arranged
to operate substantially as herein specified.
4. In heald operating mechanism the combination of the levers 13 and 14, rods 15
and 16, shafts 17 and 18, the lever 5, shaft 12, and means for operating these said
levers and rods, all said parts being formed and arranged to attain the object herein-
before set forth and described.
5. In combination with moveable (as rising and falling or drop) shuttle-boxes,
the levers 13 and 14, shafts 17 and 18, rods 15 and 16 and means for operating
these rods so that same may be employed as operating mechanisms for said shuttle-
boxes substantially as specified.
6. The nogging wheel 21, the pins 19 and 20 placed on opposide sides of said
nogging wheel, shaft 22, wheel 23 and peg lags each having two rows of pegs

page_text: in combination, the same being arranged to operate substantially as herein set
forth.
7. In combination with a pattern-cylinder having vertically reciprocatory or rising
and falling as well as intermittent rotary motion imparted to it, the wheel 24, rod 25,
bowl 26 and spring 27 the same being arranged substantially as specified.
8. In weft-stop mechanism, the combination of the part 28 formed as shewn, the
prongs 28, the lever 29 having arms 29ª, 29, 29 and 29d and means for operating
these said parts substantially as herein set forth and described.
Dated this 2nd day of June 1890.
RICHD. L. HATTERSLEY.
JAMES HILL.
Per Samuel Hey,
Agent.