IMPROVEMENTS IN OR APPLICABLE TO LOOMS FOR WEAVING
Year: 1876

page_text: LETTERS PATENT to Richard Longden Hattersley, of Keighley, in the County
of York, Machine Maker, and James Hill, of the same Place, Overlooker, for
the Invention of "IMPROVEMENTS IN OR APPLICABLE TO LOOMS FOR WEAVING."
Sealed the 8th December 1876, and dated the 10th June 1876.
PROVISIONAL SPECIFICATION left by the said Richard Longden Hattersley
and James Hill at the Office of the Commissioners of Patents on the 10th June.
1876.
RICHARD LONGDEN HATTERSLEY, of Keighley, in the County of York, Machine
Maker, and JAMES HILL, of the same Place, Overlooker. "IMPROVEMENTS IN OR
APPLICABLE TO LOOMS FOR WEAVING."
The Invention relates to a shedding motion or apparatus for working or operating
the healds or heddles in looms for weaving to open or change the shed without the
use of springs or weights; and the improvements consist in a new combination and
arrangement of levers, rods, and other parts whereby in the working thereof a
positive and lock motion of the healds or heddles is effected, that is to say, they are
moved to a certain place or position, both up and down, and held fast there until a
change of shed is required, which by the peculiar combination and arrangement
thereof is readily effected.
We employ either levers or "bowls" to connect the healds or heddles top and
bottom, which are also connected by rods or cords to oscillatory levers, which take
into the open ends of other oscillatory levers intermediately, on which are studs
which take into lateral clots in slidable and oscillatory rods, in each of which rods
are fixed two projections, one on the upper and the other on the lower side, which
are capable of taking into notches in reciprocatory knives or bars and operated
thereby. The reciprocatory knives or bars are operated by means of levers and
connecting rod attached to a crank or eccentric fixed on the low shaft of the loom
or any other shaft of the loom from which the same motion and speed can be
obtained.
For working this apparatus we employ ordinary peg lags or chain tappets or
other indicating means, which is caused to act when required on the slidable and
oscillatory rods either to place one or other of the projections thereon in the slot of one
or other of the reciprocatory knives or bars or to place both of the projections clear
of both slots so that no action can take place. The open-ended oscillatory levers
are formed with a concave part or recess on each side, so that when the shed is fully
open the upper end of the first-named oscillatory levers take into one or other of
Price 87

page_text: these recesses, which hold the healds or heddles perfectly locked fast, so that no
further motion can take place until the indicating apparatus again actuates the
slidable rods to place them in contact with the reciprocatory knives. The lower
ends of the first-named oscillatory levers are provided with a series of stud pins or
with slots placed at various distances from the axes so as to produce any required
extent of motion of the healds or heddles.
By another arrangement instead of the oscillatory levers with open ends, described
in the previous arrangement, we employ oscillatory levers having studs, pins, or
pullies in one end, each of which studs, pins, or pullies take into slots of other
oscillatory levers, the slots being arranged in such form as to give the necessary
motion to the healds when operated by the first-named oscillatory levers, and to
retain the healds with the shed open until necessary to make a change in any one
or more of the healds, such change being indicated and operated by the same
mechanism as in the preceding arrangements.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Richard Longden Hattersley and James Hill in the Great Soal Patent
Office on the 9th December 1876.
RICHARD LONGDEN HATTERSLEY, of Keighley, in the County of York, Machine
Maker, and JAMES HILL, of the same Place, Overlooker. "IMPROVEMENTS IN OR
APPLICABLE TO LOOMS FOR WEAVING."
This Invention relates to a shedding motion or apparatus for working or operating
the healds or heddles in looms for weaving to open or change the shed without the
use of springs or weights; and the improvements consist in a new combination and
arrangement of levers, rods, and other parts whereby in the working thereof a
positive and lock motion of the healds or heddles is effected, that is to say, they
are moved to a certain place or position, both up and down, and held fast there until
a change of shed is required, which by the peculiar combination and arrangement
thereof is readily effected.
In order that this Invention may be more easily understood we herein give
reference to the accompanying Sheets of Drawings marked with figures and letters
of reference.
Fig. 1 represents front elevation of loom with shedding apparatus, and Fig. 2 is
end elevation of same.
A are the healds which are connected at the top by means of cords or rods a to
angle or bell-crank levers B, and at the bottom to the straight lever C. The
lever C is also connected by rod c to the angle levers B¹ so as to keep the healds
rigid or in a state of tension. The lever B¹ is also connected by rod D to an
oscillatory lever E working on stud or axis e. The top end of the lever E enters
the open end of the lever F mounted on axis f. A pin e¹ on the lever F enters a slot
or opening in the slidable rod G, supported at one end by pins or rods g and at the
other by the end of a lever J, the end of the rod and lever working in the grate H..
The other end of the lever J works in another grate K and rests intermediately on
the "
peg lags" k. Whatever number of healds are used each one is provided with
its own set of levers and rods, as above described. Two " knives or slidable rods L
and L' are caused to work or reciprocate in slots in the framework. This re-
ciprocatory motion may be derived from either shaft of the loom, and is here
effected by means of an eccentric M on the low shaft, which is connected by rods m
to the angle levers N, so that each rise and fall of the rods m produces a reci-
procatory motion in opposite directions of the knives or rods L, L¹. On the slidable
rods G are projections n capable of entering notches or recesses in the knives or
rods L, L¹. On the " peg lags "kare pegs or pins of two lengths, other lags are
also without pins. As the cylinder revolves the pins operate the lever J, which as.
the end thereof is depressed or elevated places the projections in the slidable rod G
"

page_text: within the recess or notch of one of the knives L or L. The next movement of the
knife carries the slidable rod G along with it, and this motion of the slidable rod
produces an oscillation in the whole of the levers connected with the heald to which
it belongs and according as to which direction the movement occurs the heald is
either raised or lowered. The open-ended levers F are formed with a concave part
or recess on each side, so that when the shed is fully open the upper end of the first-
named oscillatory lever E takes into one or other of these recesses which holds the
healds or heddles perfectly fast, so that no further motion can take place until the
indicating apparatus again actuates the slidable rods to place them in contact with
the reciprocatory knives (see detail Fig. 3). The rod D is connected to the lever E
by an adjustable joint so that any required variation in the extent of motion of
the heald may be effected. The "peg lag" cylinder is operated by bevel wheels P
on the crank shaft which actuate the "noggin" or star wheel R on the "peg lag'
cylinder.
Fig. 4 illustrates another arrangement in which, instead of the oscillatory levers
with open ends described in the previous arrangement, we employ levers having
studs, pins, or bowls S, which take into slots T, the slots being of such form as to
give the necessary motion to the healds when operated and to retain them firmly
with the shed open until necessary to make a change in any one or more of the
healds, such change being indicated and effected exactly as in the preceeding
arrangement.
Fig. 5 illustrates a modification of the foregoing apparatus shewing the healds
connected to the lever F by means of cords, the bell-crank levers described above
being dispensed with, and the oscillatory motion being imparted from the bar G to
the lever E and thence to the lever F.
Other modifications may be employed, of which Figs. 6 and 7 are examples. In
Fig. 6 the treading rod m is worked from the crank shaft, and only one angle lever N
and knife L employed. The indicating motion is worked as previously described,
but each lag is perforated with double rows of holes so as to furnish two pegs to
each heald, one hole to receive peg to operate bar G, the other to operate lever G¹.
The knife has both a backward and forward motion, each "pick" G¹ is a small
lever, one end of which rests loosely on stud pin p, the other ends rests in grate K.
When the slidable bar is brought by the knife L to the extremity of its stroke to
the right the indicating motion is changed, and if a peg in the lag be then under-
neath the slidable bar G the knife makes another traverse to the left and back again
without disturbing the slide bar G, but if no peg be under the bar G and a peg be
under the bar G¹ the knife takes with it the bar to the extremity of its stroke
to the left, at which moment the lever G¹ resting on the peg and being heaviest at
the end where the slot is that end falls on to the stud pin p and consequently
raises the opposite end, which, coming in contact with the bent end of the slide bar G,
raises it clear of the knife, and thus the knife returns to the right without the slido
bar G, and so long as a peg is placed in each succeeding lag underneath the slide bar
it will remain stationary at either end of its traverse, being held in position by the
levers previously described.
Fig. 7 illustrates an arrangement whereby we are enabled to use one length of
peg only to operate the healds when using double knives worked by treading rod
from the low shaft. In each lag is a double row of holes for the insertion of pegs
to operate upon feelers or levers 8, 8¹, placed above them, one hole from each row
being selected for pegs playing upon two feelers, one for one of them and one for
the other, each feeler playing upon the slide bar G (one being directly underneath
it and the other having a bent end t to bring it underneath, as seen in Fig. 8) so
as to place it in proper position for being acted upon by either of the knives. The
levers when there is no peg in the lag keeps the slide bar G clear of the knives,
and the lever 8 when lifted by a peg places the slide bar in contact with the top
knife L¹. When there is a peg under the lever s it allows the slide bar G to fall
into the bottom knife. The fulcrum of the lever s¹ being at uit either rises or
lowers twice the distance of the lever s with the same length of peg, and with this

page_text: arrangement the slidable bar is moved when a peg comes under either of the
levers 8 or 8¹ and if neither lever is lifted by a peg the slidable bar is stationary,
being kept clear by the weight of the end of lever s lying in the grate. The peg
lag cylinder may be worked either from the crank or low shaft, as before described.
Having thus described the nature of the said Invention, and shewn by Drawings 5
in what manner the same is to be performed or carried into practical operation, we
would have it understood that what we claim as our Invention is-
Firstly. The application and use of oscillatory levers E and F, as and for the
purpose herein shewn and described or any mere modification thereof.
Secondly. The general arrangement and combination of parts, as and for the 1
purpose herein described and illustrated by Drawings.
In witness whereof, we, the said Richard Longden Hattersley and James Hill,
have hereunto set our hands and seals, this Eighth day of December, in the
year of our Lord One thousand eight hundred and seventy-six.
Witness,
J. W. TASKER,
Patent Agent,
Halifax.
MICH. L HAITERSLEY. (LS.)
JAMES HILL.
(L.S.)