IMPROVEMENTS IN THE METHOD OP AND APPARATUS FOR REGULATING HEALDS USED IN THE MANUFACTURE OF TRYMILE WARRIOR
Year: 1874

page_text: LETTERS PATENT to John Bland, of Keighley, in the County of York,
Machine Maker, for the Invention of "IMPROVEMENTS IN THE METHOD
OP AND APPARATUS FOR REGULATING HEALDS USED IN THE MANUFACTURE OF
TRYMILE WARRIOR "
Sealed the 28th May 1875, and dated the 16th December 1874.
Office of the Commissioners of Patents, with his Petition and
Declaration, on the 16th December 1874, pursuant to the 9th
Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
BLAND, of Keighley, in the County of York, Machine Maker, send
greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
THE METHOD OF AND APPARATUS FOR REGULATING HEALDS USED IN THE MANU-
FACTURE OF TEXTILE FABRICS," and have petitioned Her Majesty to grant
unto me, my executors, administrators, and assigns, Her Royal Letters
Patent for the same, and have made solemn Declaration that I am
the true and first Inventor thereof.

page_text: what manner the same is to be performed, in and by the following
statement:-
This Invention relates to certain improvements in the method of and
apparatus for regulating healds used in the manufacture of textile fabrics,
which can be so adjusted to work any number of healds from two to
twenty that may be required to produce the desired pattern in the piece
being woven, which I accomplish in the following manner :-On the top
rail or in any convenient part of a common loom I fix my improved
apparatus, into which I put the same number of metal blades as there
are healds to be worked. These blades work horizontally, or at any
desired angle, in slides fixed in framework of apparatus, which are
attached to healds by means of rods to one end of boll cranks working
on a centred pin fixed in framework. The other end of bell crank is
attached to the healds in the ordinary way. Underneath the said blades
is an ordinary card or lag cylinder fitted with lags containing pegs placed
in suitable positions. At each and every pick of the loom the card or
lag cylinder, which revolves in the usual way, is elevated so that the pegs
on the lag directly under the blades lift them up, and are drawn back by
means of a bar working in slots formed in framework of apparatus, thus
causing bell cranks which are connected to blades to revolve on centered
pin secured in framework to lift up the healds required at that particular
pick. The remainder of the blades that the pegs have not lifted are
propelled in the opposite direction, which causes the remainder of the
healds to drop, by which means space is obtained for the shuttle to pass
through the warp. To one end of the above-named bell cranks is attached
á rod coupling to the ends of levers fixed to framework at bottom end of
loom. The other ends of the said levers are attached to bottom part of
healds by means of cords, rods, or any other appliance, by which means
the healds are kept tight, ensuring an equal space for the shuttle to pass
through the warp at each and every pick.
My improved apparatus is so arranged that when any thread or threads
in the warp break when the loom is stopped the holes in the mails
through which the threads pass are all opposite to each other, by which
means it is much easier for the weaver to pass the broken ends through

page_text: Fig. 7 is an enlarged view of another kind of blade that can be use
in my improved apparatus.
A, A, is the framework of my improved apparatus, which is fixed to
the top rail or any other convenient part of the loom. Motion is imparted
to the same by crank B keyed to crank or fly wheel shaft C used in
ordinary looms. D is a rod connecting crank B to swivel joint D' secured
to double bell crank E by means of pin E. The above-named double
bell crank is secured to shaft E working in framework A, A. At the
other end of shaft E2 is secured a lever E³. ffff, are metal blades
working through guard F secured to framework A, A. To one end of
cach of the blades f,f,f,f, are fixed coupling links g, connecting the
same to double bell cranks F', F', F¹, F¹, which are centred on pin g¹
secured in framework A, A. G, G, are rods or cords connecting F¹, F¹,
F, F, to bell cranks H, H, H, H, centred on pin h' secured to any con-
venient part of top rail. To F and H' extended portions of F and H is
attached a cord or rod coupling to healds in the ordinary way. F³ is also
an extended portion of F', to which is attached a rod connecting lever J
at J centred at J and fixed to any convenient portion of loom. To end of
lever J, at J³, is attached a rod or cord coupling to bottom of healds in the
usual way. K is a lever secured to shaft L, to which motion is imparted
through rod L' by eccentric M keyed on fly wheel shaft C; to the other
end of shaft L is secured another lever K¹. N is a shaft which revolves
in levers K and K¹. On one end of the same is secured cam wheel O.
O¹ is a spring, one end fixed to framework and the other presses against O
on the said shaft, and between the two frames is the lag cylinder P, with
suitable recesses to receive lags p, p, p, into which is put any number of
holes p'; P is a catch wheel secured to end of shaft N; Q, Q, are con-
1

page_text: necting rods; one end is secured to bell crank E and lever E³, the other
end to sliding rod b, sliding in groove A¹; Q, Q, are connecting rods,
one end coupled to sliding rod b and the other to sliding rod c; R and R¹
are connecting rods attached to bell crank E and lever E³, and coupled
by sliding rod d working in slide A2; the other end of R¹ attached to
sliding bar d² working in groove d³.
ACTION OF MACHINE.
C, a crank or fly wheel shaft of a common loom driven in the usual
way, on which is keyed crank B, which revolves and gives motion to
rod D coupled to bell crank E. To the same shaft is secured an eccentric M
in such a position that at every pick or revolution of the crank shaft C
the lag cylinder P is elevated until the pegs in lags lift up the blades
shewn in Fig. 3, corresponding to the healds required to be lifted. When
the blades are lifted up the sliding bar 6 catches blades at b¹ and draws
the blades back, therefore revolves bell cranks F¹ and H on pins g¹ and h¹,
and lifts up healds. Those blades that have not been lifted up by pegs
are propelled in the opposite direction by means of sliding bar d, which
comes in contact with blades at d³, by which means space is left for the
shuttle to pass through the warp. O, the cam wheel on lag cylinder shaft N
is kept in position by spring 0%. On the other end is catch wheel P³,
which revolves lag cylinder P one tooth every pick by means of catch P³
attached to lever E³. When the shuttle has been thrown across the warp
the sliding bar C brings all the blades in line to be ready for another pick
or to piece up broken ends, as the case may be, when the above operation
is repeated.
In witness whereof, I, the said John Bland, have hereunto set my
hand and seal, this Eighth day of December, in the year of our
JOHN BLAND. (L.s.)
Signed, sealed, and delivered
by the above-named John
Bland in the presence of
JOHN WAUGH,
Engineer and Patent Agent,
Bradford.