Improvements in Apparatus for Operating the Picking Tappet, Facilitating Turning the Pattern Mechanism, and Working Drop Boxes of Looms for Weaving.
Year: 1887

page_text: Date of Application, 4th Apr., 1887
Complete Left, 10th Dec., 1887
Complete Accepted, 13th Jan., 1888
Improvements in Apparatus for Operating the Picking Tappet,
Facilitating Turning the Pattern Mechanism, and Working Drop
Boxes of Looms for Weaving.
I, ARTHUR SOWDEN of the firm of David Sowden and Sons, Bradford in the County
of York Loom Makers do hereby declare the nature of this invention to be as
follows:-
The apparatus for operating the picking tappet comprises a lever worked by the
pattern bowls, its free end having a pendant rod attached to a horizontal lever working
on a fulcrum stud, the other end of the said lever by a link or rod connected to a
finger lever attached to a cross shaft, the partial rotary motion given thereto operates
the fork for changing or sliding the picking tappet on its shaft.
The horizontal lever is by a link and treadle raised at will by the attendant, and
such lever and the pendant rod referred to, then lifts the lever first herein mentioned
clear or above the pattern bowls or pattern mechanism, taking the weight therefrom,
whereon the pattern carrying appliance and pattern bowls may readily be turned by
hand by the attendant on the loom. The improved mechanism for operating the
rising and falling boxes comprises rocking levers, mounted upon a cross shaft of the
dobby. Hinged to one lug of the lever is a double hooked or spear headed knife
operated through pattern chain pegs or other pattern mechanism, so that the knife
engages with the chain bar thus drawing the lever forward-Connected to another
ear or lug of the said lever is a chain which is passed to and over a pulley in upper
end of a vertical lever connected by links and chains and guide pulleys with one end
of the shuttle box lever-The chain from the lug of one rocking lever passes over
the pulley referred to and its other end is connected to the corresponding lug of the
adjoining lever, so that if the knife No. 1 is caused to engage with the draw bar, one
cell of the box will be raised, but if two of the knives are caused to engage with the
draw bar, then double the amount of motion will be imparted to the box lever, and
so two cells of the box will be raised-This arrangement is suitable for three shuttle
cells, that is to say-The bottom cell of the box is level with the race-then, If one
knife be operated as above described cell No. 2 is raised level with the race, If both
knives engage with the draw bar then cell No. 3 is raised-A like additional arrange-
ment of rocking lever and connections operated as above described will increase the
range or number of cells raised-In order to keep any cell in its raised position level

page_text: with the race there is in each knife a recess or catch piece with which a catch raised by
peg engages and holds the knife in its "out" or forward position as drawn by the
draw bar For releasing the catch from its holding notch the upper hook of the spear
headed knife is acted on by the other draw bar drawing the knife on a small distance
bringing the notch clear of the hold catch-The lever to which the knives are attached
is a broken back or spring lever so as to allow the said lever to give way sufficient
to permit the hook and catch clearing each other-Another arrangement comprises a
bevel wheel on the crank shaft gearing with a like wheel but having blank spaces
mounted upon a stud-The second wheel gear with a bevel wheel on the upright
shaft on which is a wheel driving two spur wheels, the upper one of which is carried
on a tilting lever mounted on a fulcrum, the lever and wheel being operated by a
peg or pattern mechanism applied at the other end of the said lever-The tilting
wheel is by rod connected to a L lever the lower arm of which is by rod connected
with the main or shuttle box lever, so that when the spaced wheel is in operation the
wheels connected with the pattern lever if allowed by their pattern pegs to be in gear
operate through the connecting rod the ☐ lever connecting rod and shuttle box lever, so
bringing up one or more cells according to the time the pattern pegs permit the tilting
wheel to be in gear with its driving wheel-There may be two or more pairs of spur
wheels, connections and ✓ levers in connection with the main or shuttle box lever
where the range of cells and shuttles to be used is considerable.
Dated First April 1887
ARTHUR SOWDEN.
By his Agent, Walter Brierley,
Town Hall Buildings, Halifax,
COMPLETE SPECIFICATION.
Improvements in Apparatus for Operating the Picking Tappet,
Facilitating Turning the Pattern Mechanism, and Working Drop
Boxes of Looms for Weaving.
I, ARTHUR SOWDEN of the firm of David Sowden and Sons, Shipley near Bradford
in the County of York, Loom Makers, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
The apparatus for operating the picking tappet comprises a lever worked by the
pattern bowls, its free end having a pendant rod attached to a finger lever working
on a fulcrum, the end of the said lever is attached to a cross shaft, the partial
rotary motion given operates the fork for changing or sliding the picking tappet on

page_text: its shaft. The finger lever is by a link and treadle raised at will by the attendant,
and such lever and pendant rod referred to, then lifts the lever clear or above the
pattern bowls or pattern mechanism, taking the weight therefrom, whereon the pattern
carrying appliance and pattern bowls may readily be turned by hand by the attendant
on the loom.
The improved mechanism for operating the rising and falling boxes comprises
rocking levers mounted upon a cross shaft of the dobby. Hinged to a lug of the
lever is a double hooked or spear headed knife operated through pattern chain pegs
or other pattern mechanism, so that the knife engages with the chain bar, thus drawing
the lever forward. Connected to another ear or lug of the said lever is a chain which
is passed to and over a pulley in upper end of a vertical lever connected by links and
chains and guide pulleys with one end of the shuttle box lever.
The chain from the lug of one rocking lever passes over the pulley referred to and
its other end is connected to the corresponding lug of the adjoining lever-so that if
knife No. 1 is caused to engage with the draw bar one cell of the box will be raised,
but if two of the knives are caused to engage with the draw bar then double the
amount of motion will be imparted to the box-lever, and so two cells of the box will
be raised.
This arrangement is suitable for three shuttle cells, that is to say-The top cell of
the box is level with the race, then, If one knife be operated as above described,
cell No. 2 is-raised lineable with the race. If both knives engage with the draw bar,
then cell No. 3 is raised. A like additional arrangement of rocking lever and
connections, operated as above described will increase the range or number of cells
raised.
In order to keep any cell in its raised position level with the race there is in each
knife a recess or catch piece with which a catch raised by peg engages and holds the
knife in its " out or forward position as drawn by the draw bar.
وو
For releasing the catch from its holding notch, the upper hook of the spear headed
knife is acted on by the other draw bar drawing the knife on a short distance bringing
the notch clear of the hold. catch.
The levers to which the knives are attached are broken back or spring levers so as
to allow the said lever to give way sufficient to permit the hook and catch clearing
each other.
Such being the nature and object of this my said invention, the following
a com-
plete description of same, reference being had to the accompanying drawings, which
form part of this specification in which :-
Fig. is a side elevation of my improved apparatus for operating the picking tappet
and facilitating turning the pattern mechanism.
Fig. 2 is end elevation of same.
Fig. 3 is a side elevation of apparatus for working the drop boxes.
The apparatus for operating the picking tappet comprises a lever 1 worked by the
pattern bowls 2, its free end having a pendant rod 3 attached to a finger lever 4
working on a fulcrum 5, the end of the said lever 4 is attached to a cross shaft 8
and by link connected with the tappet 10, the partial rotary motion given to the
shaft 8 operates the fork 9 for changing or sliding the picking tappet 10 on the
shaft 11. The finger lever 4 is by a link 11ª and treadle 12 raised at will by the
attendant, and such lever 4 and pendant rod 11* referred to, then lifts the lever 1
clear or above the pattern bowls or pattern mechanism 2, taking the weight therefrom,
whereon the pattern carrying appliances 13 and pattern bowls 14 may readily be
turned by hand by the attendant on the loom.
The improved mechanism for operating the rising and falling boxes comprises
rocking levers 1 mounted upon a cross shaft 2 of the dobby.-Hinged to a lug 2ª of
the lever 1 is a double hooked or spear headed knife 3 operated through pattern chain
pegs or other pattern mechanism 4 so that the knife engages with the chain bar 5 thus
drawing the lever forward.
Connected to another ear or lug of the said lever 1 is a chain 6 which is passed
to and over a pulley 7 in upper end of a vertical lever 8 connected by links 9 and

page_text: chains 10 and guide pulleys 11 with one end of the shuttle box lever 12 which shuttle
box lever 12 works on a stud as fulcrum and the chain from the lug of one rocking
lever 1 passes over the pulley 7 referred to and its other end is connected to the
corresponding lug 14 of the adjoining lever 15-so that if knife is caused to engage
with the draw bar 5, one cell of the hox will be raised, but if two of the knives 3 are
caused to engage with the draw bar 5 then double the amount of motion will be
imparted to the box lever 12 and so two cells of the box will be raised. This arrange-
ment is suitable for three shuttle cells, that is to say-The top cell of the box is level
with the race, then, if one knife be operated as above described cell No. 2 is raised
lineable with the race. If both knives engage with the draw bar then cell No. 3 is
raised.
A like additional arrangement of rocking lever and connections operated as above
described, will increase the range or number of cells raised.
In order to keep any cell in its raised position level with the race, there is in each
knife a recess or catch piece 16 with which a catch 17 raised by peg 4 engages and
holds the knife 3 in its " 23
out or forward position as drawn by the draw bar 5. For
releasing the catch 17 from its holding notch 16, the upper hook of the spear headed
knife is acted on by the other draw bar 5, drawing the knife on a short distance,
bringing the notch clear of the hold catch. The levers 1 to which the knives 3 are
attached are broken backed or spring levers so as to allow the said lever to give way
sufficient to permit the hook 16 and catch 17 clearing each other.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. Lever 1, rod 3, finger lever 4, and link 6, having thereon the fork 9, and the
link 11, and treadle 12, all in combination, and as and for the purpose herein described,
and as illustrated by the annexed drawings.
2. The double hooked or spear headed knives 3, rocking levers 2", with vertical
lever 8, pulleys 7, and chains 6, combined with chain and lever for operating the
shuttle box lever and shuttle boxes, as herein described, and as illustrated by annexed
drawings.
Dated this 9th day of December 1887
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicant.