IMPROVEMENTS IN 'DOBBIES' OR IN APPARATUS FOR ACTUATING OR FOR CONTROLLING THE MOVE- 5623BA MILANO POD WRAWING
Year: 1873

page_text: LETTERS PATENT to John Kippax, of Bolton-le-Moors, in the County
Lancaster, Manufacturer, for the Invention of "IMPROVEMENTS IN
'DOBBIES' OR IN APPARATUS FOR ACTUATING OR FOR CONTROLLING THE MOVE-
5623BA
MILANO POD WRAWING "
PROVISIONAL SPECIFICATION left by the said John Kippax at the
Office of the Commissioners of Patents, with his Petition, on the
12th May 1873.
I, JOHN KIPPAX, of Bolton-le-Moors, in the County of Lancaster,
Manufacturer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN 'DOBBIES' OR IN APPARATUS FOR ACTUATING OR FOR CONTROLLING
THE MOVEMENTS OF THE HEALDS IN LOOMS FOR WEAVING," to be as follows:-
-
My Invention relates in the first place to apparatus known as
"dobbies," and which are used in looms for weaving fancy goods. In
such looms the healds are lifted in varying order, and the apparatus
styled a "dobby" is employed to lift the healds, the action of such
apparatus being governed by a pattern chain as is well understood.

page_text: In the said apparatus when constructed in manner according with my
said Invention the pegs on the pattern chain lift pushers which are
jointed to or connected with the "lances" or parts which act directly on
the "griffs" or hooks which are attached to the "jacks" or levers from
which the healds are suspended, or which are otherwise connected with
the healds. A horizontal "knife" or bar is caused to move up and
down the said bar in its upward movements raising such of the said
griffs or hooks as may have been pushed towards it, and thereby lifting
the corresponding healds, the remaining healds being lowered by a
second bar which moves in a direction contrary to that of the said
knife. A pusher bar is caused to move, towards and from the said knife,
and during its forward movement comes into contact with the ends of
any of the aforesaid pushers which may have been lifted by the pegs as
aforesaid, and the said lifted pushers are moved forwards by the said bar
and acting on the said lances and thereby on the hooks with which they
are connected cause such hooks to be lifted by the knife. Any ordinary
or suitable form of peg or pattern chain or a peg or pattern barrel or
combination of cams or tappets may be used for lifting the said
pusher: →
The method of obtaining the movements of the said knife and
pusher bar
may be varied. In an arrangement which I consider to be
suitable a continuously revolving shaft imparts the forward movement
to the said pusher bar by means of cams, and a crank or cam on the
same shaft actuates a rocking shaft on which are fixed two pulleys.
Straps fixed to the said pulleys are each connected by one end to the said
knife, and by the other end to the aforesaid second bar. I may raise the
said pushers by means of knots or projections formed on cords, bands,
wires, or tapes, the positions of such knots or projections being deter-
mined by the "pattern."
My Invention in the second place has for its object to draw down by
a positive motion those healds which are not lifted. A bar or bars is or
are moved up and down by a cam or by cams, or by equivalent means
and hooks or fingers attached to or connected with the healds are acted
upon by the said bar or bars when not drawn back, and the healds are
thus drawn down by the said bar or bars. The arrangement is such as
that those hooks or fingers belonging to such healds as are lifted are
drawn back and are not acted upon by the said bar or bars to draw down
the said healds..

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Kippax in the Great Seal Patent Offico
on the 12th November 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
KIPPAX, of Bolton-le-Moors, in the County of Lancaster, Manufacturer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of May, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Kippax, Her special license
that I, the said John Kippax, my executors, administrators, and
assigns, or such others as I, the said John Kippax, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
APPARATUS FOR ACTUATING AND FOR CONTROLLING THE MOVEMENTS OF THE HEALDS
IN LOOMS FOR WEAVING, upon the condition (amongst others) that I,
the said John Kippax, by an instrument in writing under my hand
and scal, should particularly describe and ascertain the nature of my
said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Scal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
"
NOW KNOW YE, that I, the said John Kippax, do hereby declaro
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement and accompanying Drawings, that is to say :-
My Invention relates in the first place to the apparatus known as
"dobbies," and which are used in looms for weaving fancy goods. In
such looms the healds are lifted in varying order, and the apparatus
styled a "dobbic" is employed to lift the healds, the action of such
apparatus being governed by a pattern chain as is well understood.
=

page_text: In the said apparatus when constructed in manner according with my
said Invention, the pegs on the pattern chain lift pushers which arc
jointed to or connected with the lances or sliding rods which act directly
on the hooks which are attached to the "jacks" or levers from which
the healds are suspended, or which are otherwise connected with the
healds. A horizontal "knife" or griff bar is caused to move up and
down the said bar in its upward movements, raising such of the said
hooks as may have been pushed towards it, and thereby lifting the
corresponding healds, the hooks pushed from the said bar being lowered
by a second bar which moves in a direction contrary to that of the said
griff bar. A pusher bar is caused to move towards and from the said
griff bar, and during its forward movement comes into contact with the
ends of any of the aforesaid pushers which may have been lifted by the
pegs as aforesaid, and the said lifted pushers are moved forwards by
the said bar, and acting on the said sliding rods and thereby on the
hooks with which they are connected cause such hooks to be lifted by
the griff bar. Any ordinary or suitable form of peg or pattern chain
or a peg or pattern barrel or combination of cams or tappets may be
used for lifting the said pushers, and when all the pushers are raised
together for cach pick perforated cards may be employed to determine
which of the pushers shall remain up until acted upon by the aforesaid
pusher bar.
3
The method of obtaining the movements of the said griff bar and
pusher bar may be varied.
And in order that my said Invention may be fully understood, I will
now refer to the Sheet of Drawings which I have caused to accompany
this Specification, the said Drawings being illustrative of the manner in
which I carry the said Invention into practical effect.
In the said Drawings Figs. 1 and 2 drawn about the full size are
diagrams illustrating the action of the parts to which my Invention more
particularly refers. In the said Figures a, a, are portions of hooks;
b, b, are the aforesaid pushers, and c in Fig. 1 is one of the aforesaid
sliding roots. In this example the said pushers are supported by pegs d, d,
which are mounted in holes formed in a lifting bar e. The said lifting
bar is raised at intervals and lifts the said pushers. A card barrel f
presents a number of perforated cards consecutively below the pegs d,
and when the bar e is lowered those pegs which do not meet with
perforations in the card which at the time is presented to them remain

page_text: higher than the others, as seen in the Figures, and sustain the corre-
sponding pushers in a position to be acted upon by the bar g. The last
named bar is caused to move towards and from the ends of the pushers;
and when moving towards them comes into contact with those of the
pushers which are in the higher position and pushes them inwards, and
as each pusher is jointed to a sliding rod or "lance," the said rod is
caused to slide in its bearings, and to move the two griff hooks indicated
by a, a', with which it is connected in the usual manner.
Fig. 3 is illustrative of the arrangement first herein mentioned. In
this example a revolving peg barrel is employed in lieu of perforated
cards, and the pegs on the said barrel raise those of the pushers which
are to be pushed inwards by the bar g. A revolving motion is imparted
to the said barrel, and a star wheel i acting on a "bowl" K carried by
the lever causes the bar to move forwards towards the said pushers
and to act upon those of them which have been raised by the pegs on
the said barrel, a spring imparting the return movement to the said bar.
A pcg chain may be substituted for the barrel 1, and the arrangement
may be otherwise varied, the important feature being the action of the
bar g upon those of the pushers which have been raised.
Figs. 4 and 5 illustrate the manner in which my Invention may bc
carried into effect, Fig. 5 being a vertical section on the line A in Fig. 4.
In this example m is a rocking shaft which receives motion through the
connecting rod and lever n, n, from the crank shaft or from any other
suitable part of the loom. On the said shaft are fixed two pulleys, one
of which is seen at n¹, and straps o are fixed to the said pulleys and to
the knife or griff bar p and the lower bar g, so that the said bars are
caused to move upwards and downwards in opposite directions during
the rocking of the shaft m. A shaftris fitted to revolve in bearings
and is actuated by the bevil gearing and shaft 8, 8; the said shaft being
connected by gearing with the crank shaft or "tappit shaft," or with
any other suitable revolving part of the loom. On one end of the shaft »
is fixed a peg wheel which imparts an intermittent revolving motion
to the peg pinion which is fixed on one axle of the card barrel f,
the arrangement being illustrated by Fig. 6, the effect being that the
said card barrel is caused to make one quarter of a revolution during
a portion of each revolution of the shaft ", and thereby to present the
cards to successively below the pegs d, d, which are mounted in the
lifting bar e. On the shaft are fixed two excentric cams x, x, which

page_text: act upon bowls carried by the bell crank levers y, y, to which is fixed
the pusher bar g. As the shaft r revolves the cams x, x, acting on the
said levers cause the bar to be moved towards the pushers b, b, a
spring imparting the return movement to the said bar. The said cams
also act upon two slides a³, a³, on which is fixed or formed the bar e in
which are mounted the pegs d, d. A rising and falling movements is
thus imparted to the said bar, whereby the pushers b, b, are raised and
lowered as described when referring to Figs. 1 and 2. In the Drawings
the said bar is supposed to have been raised and lowered, and the pegs
numbered 2 and 4 to have met with and entered perforations in the
card 10', and the pushers 2 and 4 have as a consequence fallen out of the
range of action of the bar e, which has been moved forwards by the
continued action of the cams, and has pushed inwards the pushers
numbered 1, 3, and 5, which have moved the corresponding hooks into
the positions represented by a, a¹. The hooks a are connected with the
upper jacks which lift the healds, the hooks a¹ being connected with the
lower jacks which draw down the healds.
The further action of the apparatus consequent upon the rising of the
griff bar p and the lowering of the bar q will be sufficiently understood
without being exactly described herein. The apparatus as represented
in Figs. 4 and 5 is more particularly adapted to be situated at one end of
the loom, which I consider to be the most convenient situation, but
slight modifications, the nature of which will be apparent to the practical
mechanic, will only be required to adapt the apparatus to be placed over
the loom as is usual.
It must be understood that the form of card, peg barrel, pattern
chain, or other substitutive appliance may be varied, and also the method
of actuating the bar g, and of giving motion to other parts of the
apparatus may be varied so long as the main feature of my Invention is
retained, namely, the employment of barrels or chains or of perforated
cards or other equivalents, to select such of the pushers as are to be
acted upon by a reciprocating bar or piece, substantially as in the case
of the aforesaid pusher bar in order that certain of the parts herein
styled griff hooks may be moved into required positions.
Having now fully described and indicated the nature of my said
Invention, and the manner in which I now carry the same into practical
effect, I would in conclusion have it to be understood that I claim, —

page_text: First. The "main feature of my Invention
ticularly mentioned.
"
as herein-before par-
And, Secondly. The apparatus substantially as and for the purpose
herein-before set forth and as illustrated by the accompanying Drawings.
In witness whereof, I, the said John Kippax, have hereunto set
my hand and scal, this Eleventh day of November, in the
year of our Lord One thousand eight hundred and seventy-three.
Signed and sealed by the said
John Kippax in the presence of
EDWARD K. DUTTON,
Agent for the Patentee,
3, Princess Street,
Manchester.
JOHN KIPPAX. (L.S.)