IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1883

page_text: LETTERS PATENT to Richard Longden Hattersley of Keighley in the county.
of York Machine Maker and James Hill of the same place Mechanic for an
PROVISIONAL SPECIFICATION left by the said Richard Longden Hattersley
and James Hill at the Office of the Commissioners of Patents on the 6th July
1883.
RICHARD LONGDEN HATTERSLEY of Keighley, in the county of York Machine
Maker and JAMES HILL of the same place Mechanic, IMPROVEMENTS IN LOOMS
FOR WEAVING
"
"
This Invention relates to previous Letters Patent granted to us and dated the
18th July 1882 No 3408 in the Specification of which we described a method of
operating the shuttle boxes, by means of two toothed wheels of unequal diameters,
the smaller of which carries a crank pin, passing through a sliding block in the end
of the shuttle box lever. According to our present improvements we employ a
double set of toothed wheels and levers at each end of the loom, when operating
the shuttle boxes at each end of the loom independently or at one end, only when
working the said shuttle boxes, connected, one lever being mounted upon a
stationary stud or fulcrum whilst the other one which is the proper shuttle box
lever is mounted upon a stud or fulcrum fixed upon the first mentioned lever.
The two levers may be worked direct from the heald machine either in the same
or in opposite directions. By means of this combination we are enabled to operate
four shuttle boxes as when the levers are parallel at their lowest or highest positions
we bring the highest or lowest boxes into operation, whilst by moving them in
opposite directions or up and down alternately the two middle boxes are brought
into action. When working the boxes connected, the two lifting rods are connected
by racks formed thereon, and gearing with pinions mounted on a horizontal shaft. ·
The large toothed segment wheels are operated by rods and levers direct from the
heald machine, without any intervening motion
In the foregoing apparatus the two sets of segment wheels and crank pinions
work concentrically but for "three-box" looms, the crank pins may be placed in

page_text: the same plane-that is to say edge to edge (though not gearing with each other).
The crank pins pass through slots formed in a short lever in the centre of which
is a stud passing through the end of the box lever. Supposing the two crank pins
to be at their lowest position the lowest box is level with the shuttle race, and if
in the highest position the top box is brought into play whilst if one crank pin is
elevated and the other lowered the middle box comes into play.
The next portion of our invention relates to apparatus for stopping the picking
of the shuttles during the process of lagging back and is a further improvement
upon the apparatus described by us in specification of Letters Patent dated April 5th
1879. No 1351, in which when the loom stopped, one of the picking tappits
remained in gear and the other one out, the result being that two picks of weft were
inserted after the weaver commenced to lag back. To obviate this, we attach one
of the clutch fork levers, which serve to throw the picking tappits in and out of
gear, to the connecting rod by means of a longer socket than heretofore so as to
allow the rod to move freely therein, when not otherwise secured. On each side
of the socket we form a slot through which passes an iron wedge, which when the
loom is in motion prevents any play of the connecting rod within the socket, but
when the loom stops, the weaver, by means of rod and lever communicating with
the front of the loon is enabled to partially withdraw the wedge leaving the socket
free to slide upon the rod, and the two being connected by a spiral spring the
picking tappit is drawn out of gear.
Our improvements also consist in making the clutch fork lever in the shape of
a bell crank of which one arm will be horizontal when the picking tappits are in
gear. Above this horizontal arm is hinged a catch lever the catch of which rests
upon the arm during the picking motion being held thereon by a spring, but is
removed by means of a rod attached to the slay sword at every "beat up" so as to
allow the picking tappits to change when necessary.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Richard Longden Hattersley and James Hill in the Patent Office
on the 5th January 1884.
RICHARD LONGDEN HATTERSLEY, of Keighley in the County of York. Machine
Maker and JAMES HILL, of the same place Mechanic "IMPROVEMENTS IN LOOMS
FOR WEAVING."
This Invention relates to previous Letters Patent granted to us and dated the
18th July 1882 N° 3408, in the Specification of which we described a method of
operating the shuttle boxes by means of two toothed wheels of unequal diameters, .
the smaller of which carries a crank pin passing through a sliding block in the end
of the shuttle box lever. According to our present Improvements we employ a
double set of toothed wheels and levers at each end of the loom, (when operating
the shuttle boxes at. each end of the loom independently, or at one end only, when
working the said shuttle boxes connected) one lever being mounted upon a
stationary stud or fulcrum whilst the other one which is the proper shuttle box.
lever, is mounted upon a stud or fulcrum fixed upon the first mentioned lever.
The two levers may be worked direct from the heald machine either in the same
or in opposite directions.
In order that our Invention may be better understood we herein give reference
to the accompanying sheets of Drawings wherein Fig 1 is end elevation and
Fig 2 plan view of so much of a loom as is necessary to illustrate the first part of
our Invention.
A are the shuttle boxes supported in the frame B by means of rod C which is
connected to the end of the box lever D in the usual manner. In the opposite end
of the lever D. a slot is formed for the purpose of receiving the sliding block E
through which passes a crank pin a projecting from a plate on the face of the
pinion F which is mounted loosely on a stud in the framework of the loom. Upon
another stud is mounted a larger toothed segment wheel G gearing with pinion F
and operated by rod H direct from the heald or jacquard machine.
Our Invention consists when operating the shuttle boxes at each end of the
loom independently, of employing an additional set of toothed wheels and levers,
such as those we have described, but with the wheels F and F and levers D and
D' working upon different studs and fulcrums. The additional lever D¹ works
upon a stationary stud or fulcrum b attached to a bracket c fastened on the framing
of the loom; whilst the ordinary or proper shuttle box lever D works upon a stud
or fulcrum & projecting from the lever D¹ so that the lever D not only oscillates
upon its fulcrum & when operated by segment wheel G, but the said lever is caused
to oscillate apart from its segment by the oscillation of the lever D¹, in which case
the lever D would oscillate at the shuttle box end, whilst the slotted end thereof
would form the fulcrum for such movement.
By means of this combination of wheels and levers, we are enabled to operate
four shuttle boxes; as when the levers D and D are moved together, and are
parallel at the lowest or highest positions, we bring the highest or lowest shuttle
boxes into operation, whilst by moying either of the said levers separately up or
down, as shewn on the Drawings, the two middle boxes are brought into position.
On a close examination of the Drawing it will be observed that with the fulcrum
of lever D being on the short end of lever D¹, that this latter lever I will give to
the box lever D a further movement to the extent of one box either way, which
increased movement it could not obtain if both the levers were upon the saine
centres.

page_text: When working the shuttle boxes connected, the lifting rods C at each end of the
loom are connected.
This is effected by rack formed thereon and gearing with pinions 'mounted on a
horizontal shaft. The large toothed segment wheels which in this case are only on
one side of the loom, are operated by rods and levers direct from the heald machine
without any intervening motions.
This part of our Invention is shewn in Fig. 3 which is end elevation and Fig 4
plan view of same. The toothed segments and 'levers are marked with the same
letters of reference as those already described. In this case the lifting rod Cis
provided with a rack I gearing with a pinion J keyed or otherwise fastened on the
shaft L extending accross the loom. By this means the lifting rods C at each end
of the loom are connected and work simultaneously with each other.
32
In the foregoing apparatus the two sets of segment wheels and crank pinions,"
work concentrically but for "three-box looms the crank pins may be placed in
the same plane, that is to say, edge to edge (though not gearing with each other).
The crank pins pass through slots formed in a short lever in the centre of which
is a stud passing through the end of the box lever.
This part of our Invention is illustrated in sheet 3 where Fig 5 is elevation and
Fig 6 plan view. In this case the toothed segments G and G¹ are placed side by
side and the crank pins a and a¹ are working in slots formed at each end of a short
slotted lever K the fulcrum of which is on a stud projecting from the end of the
shuttle box lever D. The toothed segments receive their partial rotary motion
from the heald or jacquard machine by rods H and H¹. Supposing therefore that.
the two crank pins a and a¹ be at their lowest positions, the bottom shuttle box
would be brought into play, whilst on the other hand if one crank pin is elevated
and the other lowered as shewn on the Drawings, the middle box would come into
play.
The second portion of our Invention relates to apparatus for stopping the picking
of the shuttles during the process of lagging back, and is a further improvement
upon the apparatus described by us in Specification of Letters Patent dated
April 5th 1879 N° 1351, in which, when the loom stopped one of the picking
tappits remained in gear and the other one out, the result being that two picks of
weft were inserted after the weaver commenced to lag-back. To avoid this we
attach one of the clutch fork levers, which serve to throw the picking tappits in
and out of gear, to the connecting rod, by means of a longer socket than heretofore,
so as to allow the rod to move freely therein when not otherwise secured. On
each side of the socket we form a slot through which passes an iron wedge, which
when the loom is in motion prevents any play of the connecting rod within the
socket, but when the loom stops, the weaver, by means of rod and lever communi-
cating with the front of the loom is enabled to partially withdraw the wedge,
leaving the socket free to slide upon the rod and the two being connected by a
spiral spring the picking tappit is is.drawn out of gear.
This part of our Invention is shewn in Fig 8 (sheet 4) which is elevation of back
part of a loom, and also in Fig 9 (sheet 3) which is elevation of some of the same
parts on a larger scale. The tappit shaft is shewn at L having picking tappits M
and N thereon, thrown in and out of gear by clutch fork levers connected
together by rod P and operated by rod Q and levers R from the jacquard
mechanisın or heald machine in the usual manner. Our improvements are shewn
at S, T, U, V consisting of the long socket S which connects the clutch fork O
with the rod P, the said rod not being fastened to the socket, but simply slipped
therein, so that on the withdrawal of the wedge T the rod can enter further
therein..
The wedge T is attached to the rod U and handle lever V, so that when the
loom stops for the purpose of lagging back, the weaver by operating the lever V in
the direction of the arrow e. can partially remove the wedge from the socket and
simultaneously with such movement the spiral spring W draws the rod forward in
the direction of the arrow f causing the end of the rod to slide further into the

page_text: socket, whereby the. picking tappit M as well as the picking tappit N would be
disengaged and the picking mechanism at both ends of the loom would immediately
remain inoperative
The third part of our improvements consists in making the clutch fork lever in
the shape of a bell-crank of which one arm will be horizontal when the picking
tappits are in gear. Above this horizontal arm is hinged a catch lever, the catch
of which rests upon the arm during the picking motion, being held thereon by a
spring, but is removed by means of a rod attached to the slay sword at every
beat-up so as to allow the picking tappits to change when necessary.
This part of our Invention is shewn at Fig 9 which is elevation of back part of
the loom, whilst Fig 10 is cross section. The clutch fork lever O is made in the
form of a bell-crank lever, working upon the fulcrum X. Above the horizontal
arm of this lever is hinged a catch lever Y the lower end of which rests upon the
point g of the said bell-crank lever, during the operation of picking, by which
means the clutch levers and rods are all locked and held rigid, but as the catch or
holding lever Y is connected by rod z to the slay sword, the parts are unlocked at
cacli beat-up" of the slay, so that the picking tappits may be changed if
required.
"
The spiral spring his employed to make sure of the holding lever getting onto
the end of the horizontal arm.
Having now shewn and described the nature of our Invention and the manner
in which the same may be carried into practice, we would have it understood that
we do not confine ourselves to the exact details herein shewn and described as
they may be varied without departing from the essential features thereof, but
what we consider new and therefore claim is.
Firstly. The means or method of giving a positive up and down motion to the
shuttle boxes at each end of the loom independently direct from the heald machine
through the medium of the double arrangement of segments G and G¹ compound
levers D and D¹ and parts in connection therewith, substantially as herein described
and shewn in Figs 1, 2 and 8.
Secondly. The arrangement of racks I and pinions J for connecting the lifting
rods C at each end of the loom so that they may work simultaneously, substantially
as described and shewn in Figs 3 and 4.
Thirdly. The employment of the short slotted lever K and parts in connection
therewith, in combination with segments G and G₁ for operating three shuttle box
looms, substantially as shewn at Figs 5 and 6 and described herein.
Fourthly. The use and employment of the wedge T in combination with the
socket rod U and clutch lever O operated in the manner and for the purpose
substantially as herein shewn and described.
Fifthly. The means and method herein shewn and described in the third part
of our Specification for locking the picking parts O and P.
In witness whereof I the said Richard Longden Hattersley for and on behalf of
myself and the said James Hill have hereunto set my hand and seal this
31st day of December in the year of our Lord one thousand eight hundred and
eighty three.