Improvements in Swivel Motion Power Looms for Weaving Figured Goods.
Year: 1896

page_text: Date of Application, 7th Mar., 1896
Complete Specification Left, 5th June, 1896-Accepted, 11th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in Swivel Motion Power Looms for Weaving
Figured Goods.
We, WILLIAM TAYLOR BIRCHENOUGH, of the Firm of John Birchenough and
Sons, of Macclesfield, in the County of Chester, Silk Manufacturers, and AMOS
WOOD, of the same place, Foreman, do hereby declare the nature of this invention
to be as follows:-
Our invention relates to improvements in the invention for which we obtained
Letters Patent numbered 23541) of 1893 and our improvements consist chiefly in
dispensing with a second tappet shaft driven from the main tappet shaft, and in
certain novel combinations and arrangements of parts which enable us to
accomplish this.
In carrying our improvements into effect we mount loosely upon the tappet
shaft a sliding peg wheel which has secured to its face two studs which project into
two corresponding holes made in the face of a disc fixed on the tappet shaft.
When the swivel motion is to be actuated the Jacquard machine by suitable-
connections brings a bowl on a lever opposite a cam surface on the boss of the
peg wheel and as the wheel rotates it is caused by the bowl to slide on the tappet
shaft toward the fixed disc. As the peg wheel moves a projection thereon comes
into the path of a bowl mounted on a treadle and depresses the latter thereby
drawing down a rod that supports the swivel rack and allowing the latter to fall
by gravity. The continued sliding movement of the peg wheel causes the studs
to project further through the fixed dise until one of the studs engages a projection
formed upon a disc secured upon a sleeve loose upon the tappet shaft. On this
sleeve are secured two picking noses set opposite one another so that when the stud..
engages the projection it turns the disc and sleeve one half a revolution and thus
brings one picking nose on to a bowl mounted on a treadle connected by a strap or
otherwise to a pulley on a shaft which is connected to the swivel motion and drives
the shuttles in one direction. When the peg wheel slides back along the tappet
shaft through the action of a coiled spring or equivalent the treadle which actuates
the lifting motion of the swivel rack is raised and thereby raises the rack and at
the next sliding movement of the peg wheel towards the fixed disc the bowl and
treadle are depressed and the rack allowed to fall while the other stud engaging
the projection on the disc mounted on the sleeve turns it half a revolution and
brings the other picking nose against a bowl on a second treadle connected by a
strap or otherwise to another pulley on a shaft and turns the latter and drives the
shuttles in the opposite direction.
The peg wheel when swivelling moves a star wheel which controls the picking
motion for the ground shuttle once for each revolution and when not swivelling the
peg wheel moves the star wheel twice during each revolution.
As an alternative we could dispense with the disc and picking noses which are
fast upon a sleeve loose upon the tappet shaft, and instead pass the studs on the
peg wheel through the fast disc and secure adjustably to them a disc loose on the.
tappet shaft; to the face of this loose disc is secured a projection which when
the peg wheel is moved forward on its shaft comes in contact with a bowl mounted
upon a treadle to the free end of which is pivoted an arm hooked at one end and
held by a spring in contact with a disc mounted upon a shaft which actuates the
swivel shuttles. On this disc are secured four studs or projections, so that when

page_text: the treadle is depressed the hooked end of the arm acting upon one of the studs
draws down the disc and moves the shaft a quarter turn, a spring or equivalent
then raises the treadle and arm and brings the hooked end over another stud. In
this way the shaft is turned intermittently in one direction and this motion by
suitable mechanism is caused to drive the swivel shuttles alternately in opposite
directions.
Dated this 6th day of March 1896.
H. B. BARLOW & GILLETT,
Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Swivel Motion Power Looms for Weaving
Figured Goods.
We, WILLIAM TAYLOR BIRCHENOUGH, of the Firm of John Birchenough and
Sons, of Marclesfield, in the County of Chester,,Silk Manufacturers, an AMOS
WOOD, of the same place, Foreman, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described.
and ascertained in and by the following statement :-
Our invention relates to improvements in the invention for which we obtained
Letters Patent numbered 23540 of 1893 and our improvements consist chiefly in
dispensing with a second tappet shaft. driven from the main tappet shaft, and in
certain novel combinations and arrangements of parts which enable us to
accomplish this.
And in order that our invention may be fully understood and readily carried
into effect we will describe the same with reference to the accompanying three
sheets of drawings in which-
Figure 1 is a front elevation of part of a swivel motion power loom fitted with
our improvements.
Fig. 2 is an enlarged view showing details of the rack and pinion swivel shuttle
motion.
Fig. 3 is a transverse vertical section of Fig. 2.
Figs. 4 and 5 are side elevation and plan respectively of one of the swivel
shuttles.
Fig. 6 is an end elevation, partly a section, of the loom.
Fig. 6A is a detail of part of Fig. 6.
Fig. 7 is a plan taken on the plane of the line A. B, Fig. 6.
Fig. 7 is a detail of part of Fig. 7.
Figs. 8 and 9 are similar views to Figs. 6 and 7 respectively of an alternative
arrangement according to our invention.
In these views the frame of the loom is marked 1, the crank shaft 2, the slay or
lathe 3, and its swords 4. The swivel shuttle motion consists of a frame 5 which
is fitted as usual to slide in guides 6 on the cap of the lathe 3 in such manner that
it can be raised and lowered as required. In the frame 5 is fitted the reciprocating
rack 7 which is driven as described in the specification to our aforesaid patent
and transmits its motion to the series of pinions 8 and so to the swivel shuttles 9.
one of which is shown detached in the detail views, Figs. 4 and 5.
The arrangement and action of the foregoing parts form no part of our invention;
but according to our present improvements we mount loosely on the tappet shaft 10
a sliding peg wheel 11 which has secured to its face two studs 12 which project
into two corresponding holes made in the face of a dise 13 fixed on the tappet
shaft 10.
When the swivel motion is to be actuated the Jacquard machine by a cord 14
or other suitable connection raises the weighted end of a lever. 15, which is

page_text: fulcrumed at 16 to the frame 1, and by this movement brings a bowl 17 on the
other end of the lever 15, opposite the face of a cam surface on the boss of the
sliding peg wheel 11, and as the wheel rotates it is caused by the bowl 17 to slide
on the tappet shaft 10 toward the fixed disc 13 against the resistance of a coiled
spring 18. As the peg wheel 11 moves a projection 19 thereon comes into the
path of a bowl 20 shown in Fig. 74 mounted on a treadle 21 and depresses the
latter thereby drawing down the rod 22 which supports the swivel shuttle frame 5
and allowing the latter to fall by gravity. The continued sliding movement of the
peg wheel 11 causes the studs 12 to project further through the fixed disc 13 until
one of the studs engages a projection 23 formed upon a disc 24 secured upon
sleeve 25 loose upon the tappet shaft 10. On this sleeve 25 are secured two picking
noses 26 set opposite one another so that when the stud 12 engages the projection 23
it turns the disc 24 and sleeve 25 one half a revolution and thus brings one picking
nose 26 on to one or other of the bowls 27 shown in Fig. 74, mounted on treadles 29
connected by straps 29 or otherwise to opposite sides of two pulleys 30 fixed on a
rocking shaft 31, which is carried in bearings in the lathe swords 4. On the
rocking shaft 31 are fixed two other pulleys 32 and to opposite sides of these
pulleys are attached two straps 33 which pass over guide pulleys 34 to opposite
ends of the rack 7 which is therefore moved and drives the swivel shuttles 9 in one
direction. When the peg wheel 11 slides back along the tappet shaft 10 through
the action of the coiled spring 18 or its equivalent after the Jacquard machine has
released the weighted end of the lever 15 and so taken the bowl 17 out of the way
of the cam surface on the boss of the peg wheel 11 then the treadle 21 is raised by
the coiled spring 35 and by the rod 22 raises the swivel motion frame 5 and at the
next sliding movement of the peg wheel 11 towards the fixed disc 13 the bowl 20
and treadle 21 are depressed and the swivel motion frame 5 allowed to fall into,
position while the other stud 12 engages the projection 23 and turns the disc 24
and sleeve 25 half a revolution and brings the other picking nose 26 against the
bowl 27 on the other treadle 28 and so rocks the shaft 31 and drives the swivel
shuttles in the opposite direction.
In order to keep the projection 23 normally in its proper position relative to the
studs 12 the boss of the disc 24 is suitably shaped and a plate spring 36 secured to
the frame locks the disc 24 and picking noses 26 after each half revolution effected
by the peg wheel 11 and studs 12. The peg wheel 11 when swivelling moves. the.
star wheel 37 which controls the picking motion for the ground shuttle as described
in the specification to our aforesaid patent once for each revolution, and when
not swivelling the peg wheel 11 moves the star wheel 37 twice during each
revolution.
In the alternative arrangement illustrated in Figs. 8 and 9 we dispense with the
sleeve 25 and picking noses 26 and instead of fixing the disc 24 on a sleeve we
mount it loosely on the tappet shaft 10. On the face of this loose disc 24 is a neb
or projection 38 which, when the peg wheel 11 is moved forward on the shaft 10.
and the studs 12 engage the projection 23 and turn the disc 24, acts upon and
depresses the bowl 27 on the treadle 28. To the free end of the treadle 28 is
pivoted an arm 39 hooked at one end and held by a spring 40 in contact with a
dise 41 mounted upon the shaft 31 which actuates the swivel shuttles. Ou this
disc 41 are secured four studs or projections 42 so that when the treadle 28 is
depressed the hooked end of the arm 39 acting upon one of the studs 42 draws
round the dise 41 and moves the shaft 31 a quarter turn, a spring 43 or equivalent
then raises the treadle 28 and arm 39 and brings the hooked end of the latter over
the next stud 42. In this way the shaft 31 is turned intermittently in one direction,
instead of being rocked to and fro as in the previous arrangement, and this motion
by suitable mechanism is caused to drive the swivel shuttles alternately in opposite
directions. For example, two levers 44 are fulcrumed on brackets 45 secured to
the lathe swords 4 and these arms are connected by cords 33 and guide pulleys 34
to the opposite ends of the rack 7 so that the levers 44 are depressed alternately by
means of two discs 46 fixed on the shaft 31 each having two studs 47 set

page_text: diametrically at right angles the one pair to the other. Instead of having the
disc 24 mounted separately we might attach it adjustably to the ends of the studs 12
so that the disc 24 would slide and turn with the studs and the peg wheel 11 and
in this case the plate spring 36 would not be required. Again instead of the
hooked arm 39, disc 41 with studs 42 and connections shown we might employ any
suitable equivalents for transmitting motion from the treadle 28 to the shaft 31 and
from the shaft 31 to the rack 7.
Having now particularly described, and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. A sliding peg wheel mounted on the ordinary tappet shaft of a swivel motion
power loom, said peg wheel being arranged when moved into the required position
by a connection from the Jacquard machine to actuate without the interposition of
an auxiliary tappet shaft, the mechanism for raising and lowering the swivel
shuttle motion and actuating the swivel shuttles substantially as herein set
forth.
2. A sliding peg wheel mounted on the tappet shaft and arranged to actuate in
one position a star wheel and picking motion for the ground shuttle and in another
position when moved thereto by a connection from the Jacquard machine a treadle
and connections for raising and lowering the swivel motion and also through two
picking poses mounted on the tappet shaft the treadles and connections for actuating
the swivel shuttles all substantially as herein described with referencc to
Figs. 1 to 7^.
3. A sliding peg wheel mounted on the tappet shaft and arranged to actuate in
one position a star wheel and picking motion for the ground shuttle and in another
position when moved thereto by a connection from the Jacquard machine a treadle
and connections for raising and lowering the swivel motion and also through a neb
or projection thereon and a single treadle with hooked arm or equivalent to turn a
shaft intermittently in one direction and by suitable connections actuate the swivel
shuttles in both directions substantially as herein described and as illustrated by
Figs. 8 and 9.
4. The several combinations and arrangements of parts embodying our improve-
ments in swivel motion power looms substantially as herein described and as
illustrated by the accompanying drawings.
Dated this 4th day of June 1896.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicants.