IMPROVEMENTS IN MECHANISM OR ARRANGEMENTS FOR ACTUATING THE PICKERS IN LOOMS to be as follows
Year: 1884

page_text: We FREDERICK EMIL SCHLESINGER and JOSEPH HORROCKS both of Gotha in
the Empire of Germany Picker Manufacturers do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN MECHANISM OR ARRANGEMENTS FOR
ACTUATING THE PICKERS IN LOOMS to be as follows:-
,,
Our invention consists of the mechanism or arrangements hereinafter described
for actuating the pickers in looms.
We connect the picker in one shuttle box with that in the other shuttle box by
means of a bar one end of which passes through a slot in the lower part of each
of the pickers which are secured to the said bar by pins or other suitable means.
The said bar is supported so as to be capable of longitudinal motion in grooves or
on or between rollers in the lathe and has a slot formed in it at or near its centre
with which slot the upper part of a lever (hereinafter termed the picker lever)
jointed to the lower part of and carried by the "going part" engages. The said
picker lever thus moves with the "going part" and its upper end which is engaged
with the slot in the bar connecting the pickers is capable of a vibratory motion in
the direction of the length of the lathe which vibratory motion is communicated
to the picker lever when the loom is in action by means of a forked lever carried
by a rocking shaft which is actuated by tappets on the shaft by which the picker
shafts are ordinarily worked and hereinafter termed the tappet shaft the said
tappets acting on antifriction rollers mounted on arms carried by the said rocking
shaft. The said tappets are so arranged on their shaft that each acts on one of
the arms carried by the rocking shaft and so that while one of the said tappets
is acting the other is out of action. Each inward motion of the "going part" of
the loom thus causes one or other of the said arms to be acted on the two arms
being acted on alternately and the rocking shaft thereby caused to rock alternately
to the right and to the left.
By the engagement of the forked lever carried by the rocking shaft with the
picker lever and by the engagement of the latter with the slot in the bar
connecting the two pickers the said pickers are driven alternately to the right
and to the left the shuttle being thus projected from the shuttle box on one

page_text: side of the loom to that on the other side at each inward motion of the going part
as required.
In some cases we use two rocking shafts instead of one and connect them
together and to the picker lever by means of a bar or rod jointed to levers or
cranks on the said shafts. In such cases each rocking shaft is acted on by one of
the cams or tappets mounted on the tappet shaft,
In applying our invention to looms the pickers of which are connected to arms
or levers carried by the ordinary picking shafts we connect the said picking shafts
by means of a bar which engages with arms or levers on the lower parts of the
said shafts and we connect the said bar to the lever or levers on the rocking shaft
or rocking shafts hereinbefore referred to. In this case the picker the picker lever
herein before referred to and the bar by which the pickers are connected together
and to the said lever are dispensed with.

page_text: We FREDERICK EMIL. SCHLESINGER and JOSEPH HORROCKS both of Gotha in
the Empire of Germany Picker Manufacturers do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN MECHANISM OR ARRANGEMENTS FOR
ACTUATING THE PICKERS IN LOOMS" and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
Our invention consists of the mechanism or arrangements hereinafter described
for actuating the pickers in looms.
We connect the picker in one shuttle box with that in the other shuttle box by
means of a bar one end of which passes through a slot in the lower part of each
of the pickers which are secured to the said bar by pins or other suitable means.
The said bar is supported so as to be capable of longitudinal motion in grooves or
on or between rollers in the lathe and has a slot formed in it at or near its centre
with which alot the upper part of a lever (hereinafter termed the picker lever)
jointed to the lower part of and carried by the "going part" engages. The said
picker lever thus moves with the "going part" and its upper end which is engaged
with the slot in the bar connecting the pickers is capable of a vibratory motion in
the direction of the length of the lathe which vibratory motion is communicated
to the picker lever when the loom is in action by means of a forked lever carried
by a rocking shaft which is actuated by tappets on the shaft by which the picker
shafts are ordinarily worked the said tappets acting on antifriction rollers mounted
on arms secured to the said rocking shaft. The said tappets are so arranged on their
shaft that each acts on one of the arms carried by the rocking shaft and so that
while one of the said tappets is acting the other is out of action. By this means
each semi rotation of the cam shaft causes one or other of the said arms to be acted on
the two arms being acted on alternately and the rocking shaft thereby caused to rock
alternately to the right and to the left at each inward motion of the going part.
Figure 1 of the accompanying drawings is a front elevation of a portion of
a loom showing the mechanism herein before described applied thereto Figure 2
is a transverse section taken on the line 1 Figure 1 and Figure 3 is a plan of a
portion of the said mechanism and the frame. The upper part of the going part
which is shown in Figures 1 and 2 is not shown in the said Figure 3. Figures 4,
5 and 6 are details hereinafter referred to. The same letters and figures of
reference indicate the same parts in each of the Figures hereinbefore referred to
and in the other Figures of the drawings hereinafter referred to.
A A are parts of the frame of the loom B is the going part C is the cam shaft
by which the picker shafts are ordinarily worked the said shaft C being so geared
with the crank shaft that the former makes two revolutions to one of the latter as
usual. The said crank shaft is shown in Figure 1 of the accompanying drawings
and is marked D but the gearing by which motion is communicated from it to the
shaft C is not shown the said gearing being of the ordinary description and

page_text: r
arranged in the ordinary way. E E are the pickers 62 62 are the spindles on which
they work and F is the bar. by which they are connected together. The form and
construction of the said pickers and the connection thereto of the bar F are clearly
shown in Figures 4 and 5. Figure 4 being an elevation of one of the said pickers
drawn half the full size and Figure 5 a section thereof taken on the line 2 Figure 4.
The said picker is formed partly of hide and partly of metal the parts marked fl
being of hide and that or those marked f' being of metal. The arrangement in
the lathe of the bar connecting the pickers is shown clearly in Figure 6 which is
a longitudinal section of part of the lathe drawn to a larger scale than that of
Figures 1, 2, and 3. 63 63 64 64 are guides and 65 65 are rollers mounted in a cavity
formed in the underpart of the woodwork of the lathe between which guides and
rollers the bar F works. G is the picker lever which is jointed at g³ to the going
part B and is engaged at the upper part with the bar F as shown in Figure 6.
H is the rocking shaft which is mounted in bearings h¹ h¹ supported by bars a¹ a¹.
h² are the arms on the said rocking haft H. h³ ³ are the anti friction rollers
mounted on the said arms and is the forked lever carried by the said rocking
shaft which lever is engaged with the picker lever G. c¹ c² are the cams or
tappets on the shaft C which cams or tappets acting on the anti friction rollers h³ ³
on the arms h² give the required rocking motion to the shaft H. The picker
lever G is stopped at either end of its stroke by the guides b³ ³ which are faced
with hide 6 6 which deadens the blow of the said lever.
The action of the arrangement herein before described is as follows:-
When the loom is in action the arms 2 h are alternately depressed by the
action of the tappets c¹ c² on the rollers ³ ³ which tappets are so arranged on
the shaft C that one or other of them acts on one or other of the said arms at cach
inward motion of the going part. The shaft H is thus caused to reck alternately
to the left and to the right and by the engagement of the fork on the lever
the picker lever G and the engagement of the latter lever with the bar F the
pickers are actuated as required.
with
In some cases we use two rocking shafts instead of one and connect them
together and to the picker lever by means of a bar or rod jointed to levers or
cranks on the said shafts. In such cases each rocking shaft is acted on by one
of the cams or tappets mounted on the tappet shaft.
This arrangement is illustrated in Figure 7 of the accompanying drawings in
which Figure I'I' are the said shafts which are each provided with one arın i¹
each of which arms carries an antifriction roller 2. J₁ Jare the cranks on the
said shafts and is the bar or rod by which the said cranks are connected together
and to the picker lever G. The said lever G is connected to the said bar or rod by
passing through a slot or loop formed therein or secured thereto. The upper end
of the lever G is connected with the pickers by means of a bar as herein before
described with reference to Figures 1, 2, 3 and 6 of the accompanying drawings.
The action of this arrangement being essentially similar to that of the arrangement
hereinbefore described no further description is needed.
In applying our Invention to looms the pickers of which are connected to arms
or levers carried by the ordinary picking shafts as described in the specification of
Letters Patent granted to us and bearing date the twenty first day of April 1884
N° 6625 we connect the said picking shafts by means of a bar which engages with
arms or levers on the lower parts of the said shafts and we connect the said bar
to the lever or levers on the rocking shaft or rocking shafts hereinbefore referred
to. In this case the picker lever herein before referred to and the bar by which
the pickers are connected together and to the said lever are dispensed with.
This arrangement is illustrated in Figures 8, 9 and 10 of the accompanying
drawings Figure 8 being a plan and Figure 9 a side elevation of part of the frame
of the loom and those of the working parts with which our improvements aro
conuccted and Figure 10 a vertical section taken on the line 3 Figure 9. K K aré
the ordinary picking shafts kk are the arms or levers by which the said shafts
are connected to the pickers and k² k² are the arms or levers on the lower parts of
F

page_text: the said shafts. Lis the bar by which the said shafts are connected and which
is engaged near its ends with the arms k³ ³. The said bar L is supported by
rollers m m working in brackets M M secured to the frame A and is connected to
the rocking shaft H by the engagement of an arm ³ thereon with a slot in a
bracket secured to the said bar.
The picker used with this arrangement is shown separately in elevation in
Figure 11 and in vertical section (taken on the line 4 Figure 11) in Figure 12
the slot with which the arm engages being marked e!. Although we prefer this
method of connecting the pickers to the picking shafts we do not limit the
application of our arrangement for actuating the picking shafts to looms in which
the said shafts are thus connected to the pickers our said arrangement being
applicable without modification to looms in which the piokers are connected to the
picking shafts by straps as usual.
Instead of using one rocking shaft for imparting rociprocatory motion to the
bar L as shown in the drawings the arrangement of two rocking shafts described
with reference to and illustrated in Figure 7 of the accompanying drawings may
be used.
In some cases we dispense with the picker lever and lengthen the forked arm on
the rocking shaft and connect the picker bar directly with the said forked arm.
This arrangement is illustrated in Figure 13 of the accompanying drawings. In
the said Figure f is a finger formed on the picker bar F which finger is engaged
with the fork on the arm 1 by which motion is communicated to the said bar. In
this arrangement the parts b³ 65 66 (see Figures 1, 2, 3 and 0) are dispensed with
and the said arm is prolonged below the rocking shaft and its motion is limited
by stops N N faced with hide or other suitable material n' and secured to the
bar a' which supports the front bearing of the said rocking shaft.
In order to prevent any rebound of the rocking shaft or of any of the parts
moving therewith the rollers carried by the arms on the said shaft may be caused
to engage with catches when they are depressed by the action of the tappets. An
arrangement suitable for this purpose is illustrated in Figures 14, 15 and 16 of the
accompanying drawings Figures 14 and 15 being elevations taken at right angles
to each other and Figure 16 a plan of parts of the mechanism herein before
described with reference to Figures 1, 2 and 3 showing the application of the
catches thereto.
The said arrangement consists of levers O¹ O* jointed to a frame P bolted to the
lower part of the frame of the loom and connected to springs o' o' which hold them
in the path of motion of the rollers ³ ³*. The upper parts of the said levers are
inclined as seen in Figure 15 and are bent or cranked as seen in Figure 14 and
carry pins oo which lie in the path of motion of pins c c carried by the
tappets c c. The action of this arrangement is as follows:-When the arm
carrying the roller ³ is depressed the said roller in descending acts on the
inclined part of the lever O2 and pushes it aside and on the roller passing clear of
the incline on the said lever the latter is returned to its original position by the
spring connected to it the cranked part of the said lever 03 being thus brought
over the said roller has shown in the Drawings. The said roller * is thereby
prevented from rising and the parts connected with the rocking shaft H are
prevented from rebounding. Before the roller is depressed the roller ³* is
liberated by the action of the pin c' carried by the tappet c which pin c engages
with the pin o³ on the lever 03 and thereby pushes the said lever aside clear of the
roller (as indicated in dotted lines in Figure 15) before the tappet c' depresses
the roller h³. Thus each of the rollers * when depressed by the tappet above
it is held down by one of the catches and the roller on one side is liberated beforo
that on the other side is depressed.
The arrangement herein before described with reference to Figures 14, 15 and 16
may be applied to any of the arrangements herein before described for working the
pickers in looms by means of a rocking shaft actuated by tappets,

page_text: Having now particularly described and ascertained the nature of our said
Invention of "Improvements in mechanism or arrangements for actuating the
pickers in looms" and in what manner the same is to be performed we wish it to
be understood that we do not limit ourselves to the precise details hereinbefore
described and illustrated in the accompanying drawings as they may be varied
without departing from the nature of our said Invention but we declare that what
we claim is
First The general combination and arrangement of parts constituting the
mechanism herein before described with reference to and illustrated in Figures 1, 2
and 3 of the accompanying drawings.
Secondly The modified arrangement of mechanism herein before described with
reference to and illustrated in Figure 7 of the accompanying drawings.
Thirdly Connecting the pickers in looms by means of a bar or rod essentially
as and for the purpose herein before described.
Fourthly Actuating the pickers in looms by means of a lever jointed at the
lower part to the "going part" and connected at its upper part to the pickers and
actuated by means of a rocking shaft or rocking shafts which receives or receive
motion from the cam shaft of the loom substantially as herein before described
and illustrated in the accompanying drawings.
Fifthly Connecting the pickers in looms by means of a bar or rod and
actuating the pickers by means of a rocking shaft or rocking shafts connected to
the said bar or rod substantially as hereinbefore described.
Sixthly The general combination and arrangement of parts constituting the
mechanism herein before described with reference to and illustrated in Figures 8, 9
and 10 of the accompanying drawings for actuating the pickers in looms.
Seventhly Connecting the picking shafts in looms by means of a bar and
actuating the said shafts by imparting reciprocatory motion to the said bar.
Eighthly Actuating the picking shafts in looms by connecting them to a rocking
shaft or to rocking shafts which receives or receive motion from the cam shaft
substantially as hereinbefore described and illustrated in the accompanying
drawings.