Improvements in Apparatus for Operating the Picking Sticks and for Sliding the Picking Tappets of Looms for Weaving.
Year: 1890

page_text: Date of Application, 2nd July, 1890
Complete Specification Left, 2nd Apr., 1891-Accepted, 13th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Operating the Picking Sticks and
for Sliding the Picking Tappets of Looms for Weaving.
I, GEORGE HERBERT HODGSON, of Bec Hive Works, Bradford, in the County
of York, Loom Maker, do hereby declare the nature of this invention to be as
follows:-
This invention relates:-Firstly to improved apparatus for operating the picking
sticks of looms.
Secondly-To improved apparatus for moving or sliding the picking tappets
on the tappet shaft.
"
For operating the picking sticks I dispense with the use of the "
picking shaft
and apply the picking tappet to the crank shaft. The picking bowl is applied to
a vertical shaft from which extends an arm, the end of latter is passed through a
loop formed in a strap connected to the ordinary picking arm or pick stick. The
picking tappet through the picking bowl imparts a rapid or sudden partial rotation
to the vertical shaft and by means of the arm and strap referred to operates the
picking stick or picking arm. The shaft, bowl and arm are returned to their
original position through the agency of a spiral spring and strap connected to a
swell on the vertical shaft. When it is required to move the loom without operating
the picking mechanism or clutch box on the vertical shaft throws the latter
out of action, or the picking tappet may be moved on its shaft so as to miss
the bowl.
Referring now to the second part of this my invention for sliding the tappets
on their shaft either through the action of a treadle operated by the attendant, or
through the action of cards or pegs as required in the weaving.
The tappets are mounted loosely on their carrying shaft, and each are controlled
by a forked lever working on a fulcrum stud the lower ends of these levers are
connected by a cross rod which must be divided into two lengths and operated each
part in opposite directions in order to move the two tappets simultaneously towards
or from each other, and for such purpose I divide or cut the connecting rod into
two lengths and connect one end to a clip formed in the end of a bar attached to
Cshaped link acting as a crank its sides working on studs or pins received in a
recess formed by a rectangular shaped frame or casting to which the other part of
the connecting rod is attached and in combination with which is a long collar or
boss within which slide the ends of two rods towards and from each other when
and so often as the crank is operated.
The moving of the crank and consequently the sliding of the parts just referred
to in the long collar and the pushing apart or drawing towards each other of the
two parts of the rod connecting the fork levers connected with the picking tappets
and consequently the sliding of the latter is effected either at will by the attendant
on the loom by treadle or hand wheel, or such change is effected by cards or peg
mechanism according to the pattern being woven and the means of controlling the
action of the tappets according to this invention comprises a broken backed lever
worked by a tappet there being two vertical rods each having a catch piece to
engage with the said lever as directed by the cards the lower end of the said lever
being connected to a rod and fork which operates segment toothed wheels and by
connections the crank and parts are moved as desired.
WALTER BRIERLEY,
Central Chambers, Halifax, Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Operating the Picking Sticks and
for Sliding the Picking Tappets of Looms for Weaving.
I GEORGE HERBERT HODGSON of Bee Hive Works, Bradford in the County
of York Loom Maker, 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 :-
This invention relates firstly to improved apparatus for operating the picking
sticks of looms on what is known as the under pick system. Secondly, to improved
apparatus for moving or sliding the picking tappets on the tappet shaft.
For operating the picking sticks I dispense with the use of the "picking or
tappet shaft" and necessary gearing for driving same and apply the picking tappet
to the crank shaft.
The picking bowl is applied to a vertical picking shaft from the lower portion
of which extends an arm the end of which is passed through a loop formed in a strap
connected to the ordinary picking arm or picking stick generally used in underpick
looms. The picking tappet through the picking bowl imparts a rapid or sudden
partial rotation to the vertical shaft and by means of the arm and strap referred to
operates the picking stick or picking arm. The shaft bowl and arm are returned
to their original position through the agency of a spiral spring and strap connected
to the swell on the vertical shaft.
When it is required to move the boon without operating the picking mechanism
the clutch box on the vertical shaft throws the latter out of action or the
picking tappet may be moved on its shaft so as to miss the bowl as ordinary.
The pick and pick motion is effected or controlled from the pattern surface such
as cards or lags operating on the clutch on the upright picking shaft or by sliding
the picking tappets in or out in the ordinary way.
Referring now to the second part of this my invention for sliding the tappets on
their shaft through the action of a treadle operated by the attendant when
finding a pick or through the action of cards or pegs as required in the
weaving.
The tappets are mounted loosely on the carrying shaft and each are controlled
by a forked lever working on a fulcrum stud the lower ends of these levers are
connected by a cross rod which must be divided into two lengths and operated each
part in opposite directions in order to move the two tappets simultaneously towards
or from each other, and for such purpose I divide or cut the connecting rod into
two lengths and connect one end to a clip formed in the end of a bar attached to
a link acting as a crank its sides working on studs or pins received in a recess formed
by a rectangular shaped frame or casting to which the other part of the connecting
rod is attached and in combination with which is a long collar or boss within which
slide the ends of two rods towards and from each other when and so often as the
crank is operated.
The moving of the crank and consequently the sliding of the parts just referred
to in the long collar, and the pushing apart or drawing towards each other of the
two parts of the rod connecting the fork levers connected with the picking tappets
and consequently the sliding of the latter is effected either at will by the attendant
on the loom by treadle or hand wheel, or such change is effected by cards or peg
mechanism according to the pattern being woven and the action of the tappets is
controlled by two vertical rods each having a catch piece or hook at their upper
ends which engage with a lever as directed by the cards in the ordinary way the
lower end of the said rods being connected to an arm which operates segment
toothed wheels, and by connections the crank and parts are moved as desired.
Such being the nature and object of my said invention the following is a complete

page_text: part of this specification in which :-
Fig. 1 is an end view of my improved apparatus for operating the picking sticks.
of looms.
Fig. 2 is a front view of Fig. 1.
Fig. 3 is a front elevation of my improved apparatus for sliding or moving the
tappets on their shaft.
Fig. 4 is a detail shewing the apparatus for operating the connecting rod.
Fig. 5 is a plan view of Fig. 4.
Fig. 6 is a similar view to Fig. 4, but shewing the parts moved to a different
position.
Fig. 7 is a front view of the segment wheels for controlling and operating the
connecting rods and connections.
Fig. 8 is an end view of Fig. 7.
According to this my invention for operating the picking sticks I dispense with
the use of the picking or tappet shaft and necessary gearing for driving same and
apply the picking tappet 1 to the crank shaft 2.
The picking bowl 3 is applied to a vertical picking shaft 4 from the lower
portion of which extends an arm 5 of wood the end of which arm 5 is passed through
a loop formed in a strap 6 or otherwise secured thereto and the strap 6 is connected
to the ordinary picking arm or picking stick 7 generally used in underpick looms.
The picking tappet 1 through the picking bowl 3 imparts a rapid or sudden partial
rotation to the vertical shaft 4 and by means of the arm 5 and strap 6 referred to.
operates the picking stick or picking arm 7. The shaft 4 bowl 3 and arm 5 are
returned to their original position through the agency of a spiral spring and strap 8
connected to a swell or collar 9 on the vertical shaft 4 and to the frame of the loom.
When it is required to move the loom without operating the picking mechanism
the clutch box 10 on the vertical shaft 4 throws the arm 5 out of action or the
picking tappet 1 may be moved on its shaft so as to miss the bowl as ordinary. The
pick and pick motion is effected or controlled from the pattern surface such as cards
or lags operating on the clutch 10 on the upright picking shaft 4 or by sliding
the picking tappets 1 in or out in the ordinary way. The arm 4 is supported at
its lower end in a footstep 11 fixed to the end frame of the loom and the upper end
by the collar or bearing 12.
Referring now to the second part of this my invention (and to Figs. 3. 4 5. 6. 7
and 8) for sliding the tappets 1. 1. on their shaft 13 either through the action of a
treadle 14 operated by the attendant when finding a pick or through the action of
cards or pegs as required in the weaving.
The tappets 1. 1. are mounted in the ordinary manner loosely on the carrying
shaft 13 and each tappet 1 is controlled by a forked lever 15 working on a fulcrum
stud 16 the lower ends of these levers 15 are connected by a cross rod 17 which
must be divided into two lengths 17. 18 and operated by the treadle each part
independently in order to move the two tappets 1. 1 simultaneously towards or from
each other, and for such purpose I divide or cut the connecting rod into two
lengths 17. 18 and connect one end to a clip 19 formed in the end of a bar 20 and
attached to which is a link 21 acting as a crank and working on stud or pin 22
received in the bar 20 the latter being carried in a rectangular shaped frame or.
casting 23 in which the bar 26 of the connecting rod 18 is carried and the rectan-
gular shaped frame 23 forms a long collar or boss within which slide the ends of
the two bars 20-26 towards and from each other when and so often as operated by
the treadle 14. The crank 21 is connected by pin or stud 24 with the arm 25 the
opposite end of which is by pin connected to the bar 26 to which the rod 18 is
attached. The protruding finger 27 of the arm 25 acts as a stop piece by coming
in contact with the side of the crank 21 (see Fig. 4) when in one position and the
flat surface 28 comes in contact with the opposite side of the crank 21 when the latter
is turned in the opposite direction.
It will be seen on reference to Sheet 3 of the drawings that the horizontal distance

page_text: $3
from the centre 22 to the centre 24 is greater when the crank 21 is in the position
shewn by Figs. 4 and 5 than when the crank 21 is moved half round on its carrying
pin 22 or partly round as shewn by Fig. 5. This moving of the centres 22. 24.
nearer to or further from each other necessarily moves one of the bars 20 or 26 in
or out of the collar 23 and when the bar 26 is moved outwards (see Figs. 4 and 5)
the rod 18 is also moved, outwards and the forked lever 15 turned on its fulcrum
and the tappet 1 is slided on its shaft. If the tappet 1 be "held the movement
of the crank 21 will operate the other bar 20 in a similar manner, and thus the other
tappet 1 is slided on its shaft. The moving of the crank 21 and consequently the
sliding of the parts 20. 26 just referred to in the long collar 23 and the pushing
apart or drawing towards each other of the two parts of the rod 17. 18. connecting
the forked levers 15 connected with the picking tappets 1. 1. and consequently the
sliding of the latter is effected either at will by the attendant on the loom by
treadle 14 attached by rod 29 to the loom frame and to the rod 29 is connected
the link 21 the other end of which is attached to the crank 21 and as the treadle 14
is moved one way or the other (as indicated by arrows in Fig. 3) so is the crank 21
moved as hereinbefore described so operating the bars 20. 26 and by the connections
operating the tappets 1. 1. or the movement is obtained by hand wheel in lieu of
the treadle 14 or such change is effected by cards or peg mechanism according to
the pattern being woven and the action of the tappets 1. 1. is controlled by
two vertical rods 31. 31. each having a catch piece or hook at their upper
ends which engage with a lever or stud as directed by the cards in the
ordinary way.
The lever or stud will draw upwards one or other of the rods 31 and this by
the crank or arm 31" will give a part revolution to the segment wheel 32 the latter
gearing with and drives the wheel 33 on the back of which is the crank pin 34 and
by the connections 35 operating the long collar 23 to which it is attached by the
stud 30 and the tappets 1. 1. are thereby controlled and operated by the cards or
pattern mechanism. A. stop piece 36 is cast on the bracket 37 which carries the
segment wheels and the stop piece being received in the recess 38 formed in
the periphery of the wheel 32 limits the amount of motion of the latter in either
direction.
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 operating the picking sticks of looms for weaving:
The arrangement and combination of the parts operated and operating as herein
described and substantially as illustrated by Figs." and 2 of the accompanying
drawings.
2. The general construction, arrangement and combination of the parts for sliding
the tappets of looms for weaving operated and operating in the manner herein
described and substantially as illustrated by Sheets 2 3 and 4 of the annexed
drawings.
3. The bar 20, link or crank 21 arm 25 bar 26 and casting or collar 23, all in
combination as and for the purpose herein fully described and substantially as
illustrated by Sheet 3 of the accompanying drawings.
Dated this 1st day of April 1891.
GEORGE HERBERT HODGSON.
By his Agent, Walter Brierley,
Central Chambers, Halifax.