weits with Two or more Shuttles.
Year: 1887

page_text: Date of Application, 22nd Apr., 1887
Complete Left, 21st Jan., 1888
Complete Accepted, 24th Feb., 1888
Or weits with Two or more Shuttles.
1 JOHN ALLAN 7 Lyon Street, Dundee in the County of Forfar, North Britain
Engineer, do hereby declare the nature of this invention to be as follows:-
It consists of an improved motion of Loom and has for its object the weaving of
checks or other patterns by using weft of various colours and this object is
accomplished by using two or more Shuttles in the manner hereinafter described.
A shaft driven from crank or tappet shafts of loom as is most convenient carries a
tappet giving motion to a combination of levers fixed on one shaft. Supported by
two of those levers but moving freely on its axis is a barrel of wood or other material
preferably square but may be made of other suitable form. On each face of barrel
or at suitable distances on periphery if round a hole or holes are pierced to a requisite
depth, projections are also attached, and as the barrel oscillates by the action of the
tappet previously mentioned the projections come in contact with a catch on frame
causing the barrel to revolve, the required distance. Working on barrel and driven
by projections thereon is a suitable endless chain made of steel or other material
adapted to the purpose with a hole or holes pierced in certain links of the chain to
correspond to those pierced on the barrel. The barrel as it revolves changes the
position of links of chain, and the oscillating movement causes chain to act upon two
other tappets (upon another shaft geared with shaft before mentioned and which may
be termed the cross shaft) through the medium of a finger and levers or other suitable
arrangement. Where there are no holes in links of chain corresponding to holes in
barrel the tappets moving on shaft over keys fastened thereon are brought into contact
with levers which then work ratchet wheels causing them to move; the ratchet wheels
give motion to wheels working pitch chains. The links of pitch chains are made with
projections on outside of different heights as may be required. One chain through
the medium of levers fixed on a shaft or other arrangement works lifting bar to
required position. The lifting bar is formed of steps of required height and is moved
forward by two tappets fixed on cross shaft communicating motion to a guide bar,
from which bar by the use of levers or other appliances motion is given to the shuttle
boxes. The other pitch chain retains slide bar in position during the interval between
each movement of the lifting bar acting on the slide bar.
ALEX. M'CULLOCH,
Agent for Applicant,

page_text: of Wefts with Two or more Shuttles.
I JOHN ALLAN 7 Lyon Street, Dundee in the County of Forfar, Engineer, do
hereby declare the nature of my invention for IMPROVEMENTS IN WEAVING and in
what manner the same is to be performed, to be particularly described and ascertained
in and by the following statement, that is to say :-
My said Invention consists of an improved motion of Loom, and has for its object
the weaving of checks, or other patterns, by using weit of various colours; and this
object is accomplished by using two or more shuttles in the manner hereinafter
described, reference being made to the accompanying sheets of explanatory drawings.
Figure 1 on the Drawings is a plan of the improved motion. Figure 2. is a front
elevation thereof. Figure 3. is a back elevation thereof. Figure 4. is an end elevation as
viewed with the left hand towards the front showing driving gear. Figure 5 is a
view of steel chain showing arrangements of holes to fit projections. Figure 6 is an
elevation of a shaft and spanners. Figure 7 is a plan of same. Figure 8 is a view of
hollow wheel for pattern chain. Figure 9 is an enlarged elevation showing method
of coupling pattern chain links. Figure 10. is an end elevation of same. In these
drawings the reference numerals are used to mark the same or like parts whenever
they are repeated.
A shaft 11 is driven, preferably by toothed gearing, either from crank or tappet
shafts of Loom, as may be found most convenient, and at requisite speed. Upon this
shaft 11 are tappets marked respectively 12, 13, 14, 15, and 16. The tappets
marked 13, 14, and 15 are keyed, those marked 12 and 16 slide freely over feathers
fastened to shaft 11. The tappet marked 13, through the medium of lever 17, and
spanner 18, gives motion to spanners 19, 19 fixed on shaft 20.
Supported between those spanners, but moving freely upon its axis, is a barrel 21,
of suitable shape, preferably square. On each face of square, holes 22, 22. are bored
of suitable depth and diameter. Projections 23, 23 are also fixed upon each face of
barrel. As the barrel oscillates, caused by the action of tappet 18, a catch 24, by
means of other projections 25, 25 on barrel 21, causes it (the barrel 21) to revolve
the requisite distance. Upon this barrel 21 works an endless chain Figure 5, of steel
or other suitable material, with holes 26, 26 pierced corresponding to projections 23, 23
on barrel 21. As the barrel revolves, this chain is moved forward. If the shuttlo
boxes do not require to change, the plate links of chain Figure 5 are pierced with
holes 27, 27 corresponding to holes 22, 22 in barrel 21. A finger 28 Figure 1, and
shown by dotted lines 28 on Figure 4, in requisite position, enters holes and remains
stationary; but if the shuttle boxes are required to be moved the plate link Figure 5
is not pierced, and coming into contact with finger 28, through the medium of shaft 29
and spanners 30, 30, causes the tappets 12 and 16 to act upon levers 31, 31. The

page_text: finger 28 is brought back by means of a spring when released by barrel 21. The
levers 31 communicate motion to a ratchet wheel 32 on shaft 33.
As the links of chain Figure 5 are interchangeable the number of shots may be
increased and diminished at pleasure. By working odd numbers of shuttles, as 3, 5, 7,
the colour of weft may be changed every shot without additional mechanism.
On the shaft 33 is keyed a hollow toothed wheel 34 shown enlarged on Figure 8
carrying an endless chain 35 with links of various heights joined together as shown
enlarged on Figure 9. The chain 35 is also carried over a guide pulley 36 when
necessary. Pressed against this chain by a spring or other appliance is a spanner 37
Figures 2, 6, and 7, and shown partly in dotted lines on Figure 1, communicating
motion by means of shaft 38 spanner 39 and brackets 40, to lifting bar 41.
This bar 41 is formed with steps, each of equal depth, and is moved forward by
tappets 14 and 15 pressing on balls on ends of bar 41 giving motion to the guide
bar 42, through the medium of the finger 43 and the lever 44. This lifting bar 41 is
brought back by a spring when released by the tappets 14 and 15. As the lifting
bar 41 is always propelled forward the same distance by the tappets 14 and 15, the
distance moved by the guide bar 42 is regulated by the height of the step in action,
which is placed in position by the action of the spanner 37 on the chain 35.
At the same time tappet 16 through the medium of levers 45 gives motion to
chain 46 similar to chain 35 and places link of chain of requisite height into position
over the guide bar 42 which holds it in position when released by its tappets 14 & 15
until the shuttle boxes are again required to be moved. When the movement is to
descend from higher to lower links the action of tappet 16 is alone required by moving
the chain 46 forward when the guide bar 42 shifts into position by the counter balance
weight of the shuttle boxes.
Motion is given to shuttle boxes by means of levers 47 and connecting rods or
otherwise as may be found most suitable.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is:-
1. For weaving Fabrics with various colours of wefts with two or more shuttles,
the method of regulating the number of shotts of any particular colour by means of
an endless chain Figure 5 on barrel 21 and appliances connected therewith, the parts
being arranged and operating substantially as herein before described.
2. The method of placing the stepped lifting bar 41 into position by means of an
endless chain 35 with links of various heights and connections therewith substantially
as hereinbefore described.
3. The method of raising levers 47 for changing position of shuttle boxes by means
of stepped lifting bar 41, tappets 14 and 15 and other connections therewith
substantially as herein before described.
4. The method of placing into position an endless chain 46 by means of tappet 16
and other connections to act as a check to guide bar 42 when it is required to be kept
stationary and also the method of lowering the levers 47 by the same means
substantially as hereinbefore described.
:
Dated this 20th day of January 1888.
ALEX. M'CULLOCH,
Applicant's Agent.