AN IMPROVED SHEDDING MOTION FOR LOOMS to be as follows :—
Year: 1884

page_text: We WILLIAM MOULD 10 Grayston Street Preston in the County of Lancaster
Dresser and HENRY BARTON London Road aforesaid Mechanic do hereby declare
the nature of our invention for "AN IMPROVED SHEDDING MOTION FOR LOOMS
to be as follows :—
"
The machine or apparatus is furnished with a suitable frame work in which aro
placed two horizontal shafts some twenty inches apart and parallel to each other
having their bearings in the front and back parts of the frame work, on each of
these shafts and inside the frame work are placed two short arms made secure to
the shafts Near the ends of the arms there is a hole which receives a round iron
rod which passes from one arm to the other and made secure, the arms are in a
vertical position, when in their normal position and the rods are parallel with the
shafts the space between the arins receives a number of Cam Wheels which are
loose on the shafts from the circumference of the Cam Wheels a little above the
centre there is a projection its direction being towards the centre of machine
this projection being horizontal, on another part of the Cam Wheel there is a short
projection nearly under the axis of shafts this projection rests against a cross rail
or fence so as to keep the Cam Wheels in their proper position on another part of
the Cam Wheel nearly opposite the first projection is a notch, the iron rods receives
as many loose palls or catches as there is Cam Wheels each pall being over each
Cam Wheel one end of the palls being hooked the other end is plain the hooked
ends is to drop into the notched part of the Cam Wheels when required the palls
are a little distance from the Cam Wheels and a little larger in radius then the
Cam Wheels on the plain end of each pall rests the end of a Bell crank lever in an
borizontal position the other part of tlie lever is vertical this part is acted upon by
pegs in laths something in the ordinary way in centre of machine or midway
between the first mentioned shafts are as many vertical slides as there are Cam
Wheels on each slide that is the outer edges are toothed for a short distance which
engage with as many toothed quadrants Jacks or levers which are in an horizontal
position the ends of which receives cords that pass to the heald shafts near the top
of the vertical toothed slides is pivoted an Horizontal lever of which extends to,
and under each projection of the Cam Wheels each shaft is connected by a link at

page_text: the back part of the machine, there is also a lever made secure on the end of one
of the shafts this lever is in an horizontal position this lever gets its motion from a
small crank and link connected to end of tappet shaft Now it will be seen that
when motion is imparted to the horizontal lever on the end of one of the shafts
that it gives reciprocating motion to the arm Rods and palls any one or any
number of palls that are in the notched parts of the Cam Wheels will carry the
Cam Wheels forward with them as far as they take their forward motion and by
that means the horizontal levers are depressed and also the vertical toothed slides,
causing the toothed quadrant Jacks or levers and also the heald shafts to rise
and so forms a shed for the shuttle to pass through.
Dated this 4th day of June 1884,
WILLIAM MOULD,
10, Graystone Street, Preston,
Lancashire.

page_text: COMPLETE SPECIFICATION.
We, CATHARINE MOULD, widow and administratrix of William Mould, late of
10, Grayston Street, Preston in the County of Lancaster, Dresser, (who died on
the twentysixth day of December 1884), and HENRY BARTON, of London Road;
Preston aforesaid, Mechanic, do hereby declare the nature of the invention for
"AN IMPROVED SHEDDING MOTION FOR LOOMS "and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :—
This Invention of an improved shedding motion for looms will be best under-
stood by reference to the accompanying Drawings of which Fig. 1 is a side
elevation, Fig 2 a plan view, and Fig. 3 a side view shewing the arrangement and
action of the principal mechanical parts employed in carrying into effect the said
invention.
The machine or apparatus (which in the arrangement shewn is known as a
"double lift" apparatus in which a pair of jacks or levers sustain a single heald).
is furnished with a suitable frame work A in which are placed two horizontal
shafts 2, 2, some twenty inches apart and parallel to each other having their
bearings 3, 3, in the front and back parts of the frame work. On cach of
these shafts 2, 2, (and preferably outside the frame work as shown in Figs 1 and 2
although they may if desired be placed inside as stated in our Provisional;
Specification) are placed two short arms 4, 4, made secure (centrally) to the.
shafts 2, 2; near the upper ends of each of the arms there is a hole which receives
and in which are fastened the ends of a round iron rod 5 which passes from one
arm to the other. The arms 4, 4, are normally in a vertical position and the
rods 5, 5, are parallel with the shafts 2, 2,; the space on the shafts between the
arms 4, 4, receives or is occupied by a number of wheels (which we term "cam”
wheels) 6, 6, which are loose on the shafts 2, 2, and are placed thereupon side by
side. From the circumference or periphery of the cam wheels 6, 6, a little above
the centre are horizontal projections or arms 7, their direction being towards the-
centre of the machine. On another (the underneath) part of each cam wheel there
is a short projection 8, (see Fig. 3), nearly under the axis of the shafts 2, 2, this
projection resting against a fixed cross rail or fence 9 acting as a stop so as to
ensure the return to an uniform position of the cam wheels after having been
actuated as hereinafter described. On another part of the cam wheel nearly
opposite the first named-projection or arm 7 is a notch 10. The iron rods 5, 5,
receive as many loose pawls or catches 11, 11, (placed side by side as shewn in
Fig 2,) as there are cam wheels underneath, each pawl being over each cam
wheel; the outer end a of the pawl being hooked whilst the other end b is plain-
the hooked end a being made so much heavier than the inner end 6 as to over-
balance it and thus have always a tendency to drop into and engage with the
notch 10 when at liberty to do so. Upon the upper edge of the plain end b of each.
pawl rests the end c of the horizontal arm of a bell crank lever 12; the other.
arm d of the lever is vertical and is acted upon (that is to say pushed back thereby

page_text: raising the horizontal arm as shewn in dotted lines in Fig. 3) by pegs 13, 13, in
laths 14, 14 arranged in the ordinary manner according to the pattern to be
produced on the cloth. In lieu of a bell crank lever as mentioned in our Provisional
Specification we may employ an L lever with its horizontal arm weighted as
shewn in the drawings. When there are no pegs in contact with the levers 12, 12,
the horizontal part falls down by its own weight, the end resting upon the curved
or inner end of the pawls or catches 11, 11 and thus raising the end a clear of the
notch 10. B, B are the lath reels or lattice barrels actuated through the medium
of the usual toothed wheels C, C, by the action of the catch D upon an ordinary
catch wheel E. In Fig. 2. the lattice reels or barrels and pegged laths on the left
hand side of the figure are not shown in order that the arrangement of the pawls,
jacks, Llevers and attendant mechanism may be more clearly visible. A break F
of the usual or any convenient form may be used, or a friction clip may be caused
to clasp the periphery of a disc on the end of the catch wheel shaft as will be well
understood. In the centre of the machine or midway between the shafts 2, 2, are
as many vertical slides 15, 15, as there are cam wheels. The vertical slides 15, 15,
are provided with guide slots 21, more clearly shewn in Fig. 3, and are supported
in the required vertical position by means of cross or guide bars 22, 22. The outer
edges of each slide are toothed for a short distance near their lower, extremities e
and engage on each side with the ordinary toothed quadrant-jacks, or levers 16, 16
which are pivotted on the axes 1, 1,; the outer ends of the quadrant jacks, or levers
receive cords 17, 17 which pass to and sustain the ordinary heald shafts, or staves,
below. Near the top end of each of the vertical toothed slides 15, 15, is pivotted
a horizontal lever g which extends to and under the projections or arms 7 of the cam
wheels 6, 6. The bottom of the projection or arm 7 preferably fits into and slides
within a guide groove formed upon the upper edge of the lever g. When the cam
wheel 6 is rotated or pulled-forward by the catch or pawl 11 the projection or
arm 7 will cause the horizontal lever g to be depressed and with it the vertical
slide 15, thereby raising the outer ends of the quadrant jacks or levers 16, 16, (as
shewn in dotted lines in Fig 3) and thus causing the heald shaft below to be raised
and the shed to be formed. The arms 4, 4, and rods 5, 5, receive their requisite to
and fro motion by means of a link 23 at the back part (and preferably by an
additional one at the front) of the machine jointed to the lower part of the
arms 4, 4. There is also a double lever or pair of levers 18 in a horizontal
position made secure on, or forming one piece with, the arms 4, 4 at one end of
the machine or apparatus; the levers 18 being connected at their outer extremities
by a cross-bar 19 to which is jointed a link or rod 20 connected to a crank on the
end of the tappet shaft below, which imparts the required up and down motion to
the apparatus in the ordinary manner. A spiral spring 24 (preferably at the back
of the machine-see Fig. 2.) is attached at one end to a fixed stud 25 and at its
other end to the lower part of the arm 4 and serves to counteract the extra weight
of the levers 18, 18 and connecting rod 20.
Now it will be seen that when motion is imparted to the lever 18 that a
reciprocating motion will be given to the arms 4, 4, rods 5, 5, and pawls 11, 11;
and that any one or any number of the pawls that have engaged with the notched
parts 10, 10, of the cam wheels 6, 6, will carry the cam wheels forward with them
as far as they take their forward motion and by that means the pivotted horizontal
levers will be depressed along with the vertical toothed slides 15, 15, thus causing
the toothed quadrant jacks or levers 16, 16, and also the heald shafts below to rise
and so form a shed for the shuttle to pass through.
The arrangements of parts for producing a shedding motion in looms as herein-
above described dispense with the employment of wire hooks, knives, and grates as
heretofore in use in such apparatus and in lieu of the violent or "blow-striking"
movement of such appliances when in rapid motion, an easy curvilinear sliding
action throughout is substituted thereby reducing shaking and vibration and the
breakage of parts and providing a smoothly-working and durable apparatus.

page_text: 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. Operating the jacks or levers sustaining the heald shaft so as to form the shed
by the movement of a vertical slide carrying a pivotted horizontal lever caused to
be depressed as required by a bell crank.or L lever acted upon. by pegs on the
ordinary laths and thereby causing a pawl to engage with and pull over a
wheel having a projection or arin resting upon the pivotted horizontal -lever
substantially as described and shewn in the drawings.
.
cam
"
2. The combination of parts constituting the improved shedding motion for
looms constructed, arranged, and operating substantially as described and shewn
in the drawings.
Juku сто 400u uay дергаему 1000.
Witness to the signatures of Catharine Mould
and Henry Barton:
YATES W. BOOTH,
Patent Agent, Preston.
CATHARINE MOULD.
HENRY BARTON.
:
Witness to the signatures of Catharine Moul
and Henry Barton:
YATES W. BOOTH,
Patent Agent, Preston.