IMPROVEMENTS IN POWER LOOMS AND IN APPLIANCES CONNECTED OR USED THEREWITH”
Year: 1882

page_text: LETTERS PATENT to Robert Jacob Gülcher of Notting Hill in the County of
Middlesex Gentleman for an Invention of "IMPROVEMENTS IN POWER LOOMS
AND IN APPLIANCES CONNECTED OR USED THEREWITH”
PROVISIONAL SPECIFICATION left by the said Robert Jacob Gülcher at the
Office of the Commissioners of Patents on the 18th July 1882.
ROBERT JACOB GÜLCHER of Notting Hill in the County of Middlesex Gentleman
"IMPROVEMENTS IN POWER LOOMS AND IN APPLIANCES CONNECTED OR USED
THEREWITH
"
This invention consists of improvements in power looms in which several healds
or heddles are used and in which manifold shuttle changes are required the objects
of the said improvements being to simplify the mechanism and to secure perfect
certainty in the working of such looms
The said improvements consist first of au improved arrangement for working
the healds or heddles of power looms of the kind hereinbefore referred to in which
arrangement the "lathe" is caused to act in an open
"shed."
According to this arrangement a heart shaped cam is mounted on a shaft to
which rotatory motion is communicated from any suitable motor which cam
actuates levers one of which is connected to a rack which gears with a toothed
segment formed on or secured to arms mounted on a shaft and so connected to two
bars (termed lifter bars) working in slides one above the other that the reciprocatory
motion communicated to the arms from the said cams is communicated to the said
lifter bars which are thus caused to move in opposite directions. The said lifter
bars have ribs or projections formed on them which engage with hooks formed on
the ends of rack bars (termed lifter racks) which are supported near their centres
so as to have free endway motion and so as to be capable of rocking or tilting on
their support. The other ends of the said lifter racks rest in slots formed in the
levers (termed card levers) which rest on and are actuated by the buttons of the
cards passing under them the said lifter racks being tilted by the rising and falling
motion of the card levers and their hooked ends are thus caused to engage either

page_text: with the rib on the upper lifter bar or with that on the lower lifter bar according
as the said racks are tilted by the said levers. The rack teeth on the lifter racks
are geared with toothed segments formed on or affixed to excentrics mounted on a
shaft which excentrics when the hooked ends of the lifter racks are engaged with
the lifter bars actuate levers by which the required motion is given to the healds
the said levers being. connected to the said healds by wires and chains as usual.
These levers are mounted on a shaft which is provided with adjustable supports
by which their range of motion and consequently the size of the shed may be
regulated.
"
To provide for the "turning on i,e the placing of the lathe and all the levers
connected with the healds so as to admit of free access to the warp threads in order
that broken threads may be mended an arrangement of levers and catches is used
mounted on a sliding bar so arranged in proximity to the upper lifter bar that on
the said catches being allowed to fall they engage with lugs on the said lifter bar
and it and the said sliding bar are thus caused to move together and the lifter
racks engaged with the said upper lifter bar are pushed forward by the said bar
and the levers connected to the healds are thus brought all into the same line.
The loom is then stopped.
When the loom is again started the catches by which the lifter bar is connected
to the sliding bar are automatically disengaged therefrom.
The excentrics which work the levers connected to the healds are all of the same
size but of different throw the extent of the throw of each of the several excentrics
being such as will produce an even shed.
The said improvements consist further of an improved form of cards the con-
struction of which is hereinafter described. The said cards consist of strips of
sheet metal having cars formed at their ends the said strips being bent up near their
ends into a plane at right angles to their other parts and connected together side
by side by pins or rivets passed through holes in the said ears the several strips when
thus connected forming an endless chain. In the said strips apertures are formed
in which the card buttons are placed and are secured by rods which pass through
holes in them and in the bent up ends of the cards the projecting ends of which
rods serve to engage the cards with the roller on which they are mounted when
placed in the loom.
The said improvements consist further of the arrangement hereinafter described
for actuating the shuttle boxes for manifold shuttle changes. According to the
said arrangement lifter racks arranged and worked as hereinbefore described with
reference to first head of invention are geared with toothed segments formed
on or secured to cams mounted so as to be capable of rotation on a shaft the
number of which cams varies according to the number of shuttle changes required
Above the said cams levers carrying rollers are mounted which levers as the
cams rotate on their shaft are raised more or less according to the size of the
cams. The said levers are connected at their free ends by rods and other levers
with the shuttle boxes which by the action of the cams on the said levers are
raised and lowered as required. The several cains are brought into action at the
required times by the card buttons actuating the lifter racks which gear with the
toothed segments on the cams as herein before described with reference to the first
head of invention. The said cams are provided with brakes or friction straps or
bands kept in contact with the cams by means of springs the tension of which is
capable of being regulated by screws and screw nuts.
The said improvements consist further of the arrangement hereinafter described
for effecting the automatic release of the picker arms.
According to this arrangement the arms or levers by which the picker catches
are worked and which ordinarily form part of the picker catches are jointed thereto
in such a manner that the said arms or levers turn on their joints when moved in a
plane at right angles to that in which they move to release the picker arms while
their action when moved in the direction necessary to release the picker arms is
the same as that of fixed arms or levers of the ordinary kind. The said jointed

page_text: levers are connected by straps levers and rods to other levers mounted in the
shuttle boxes in the path of motion of the shuttles the jointed lever on the right
side of the loon being connected to the lever in the shuttle box on the left side of
the loom and vice versa. By this arrangement the automatic release of the pickers
is effected with greater precision and regularity than by other arrangements.
The said improvements consist further of an improved arrangement of the stop
motion ordinarily used in German looms which consists of a spring bolt working
in guides affixed to the frame of the loom one end of which bolt is caused to
project into the path of motion of a catch carried by a toothed wheel mounted on
the main shaft, when necessary, by the action of a lever jointed to the lathe and
actuated by the shuttles. This arrangement acts imperfectly the loom not being
stopped with certainty and the lathe being frequently broken. According to the
said improved arrangement the stop bolt stands normally in the path of motion of
the stop catch and is connected by means of levers and rods with the mechanism
by which the jointed picker levers hereinbefore described are actuated.
The stop
bolt is thus withdrawn only when a shuttle enters its box on one or other side
of the loom the said stop bolt being actuated by the shuttle and being quite
independent of the lathe

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert Jacob Gülcher in the Great Seal Patent Office on the
18th January 1883.
ROBERT JACOB GULCHER of Notting Hill in the County of Middlesex Gentleman
"IMPROVEMENTS IN POWER LOOMS AND IN APPLIANCES CONNECTED OR USED
THEREWITH
"
This invention consists of improvements in power looms in which several heals
or heddles are used and in which manifold shuttle changes are required the objects
of the said improvements being to simplify the mechanism and to secure perfect
certainty in the working of such looms.
The said improvements consist first of an improved arrangement for working the
healds or heddles of power looms of the kind hereinbefore referred to in which
arrangement the "lathe" is caused to act in an open "shed "
According to this arrangement a heart shaped cam is mounted on a shaft to
which rotatory motion is eommunicated from any suitable motor which cam actuates
levers one of which is connected to a rack which gears with a toothed sector formed
on or secured to arms mounted on a shaft and so connected to two bars (termed
lifter bars) working in slides one above the other that the reciprocatory motion
communicated to the arms from the said cams is communicated to the said lifter
The said lifter bars
bars which are thus caused to move in opposite directions.
have ribs or projections formed on them which engage with hooks formed on the
ends of rack bars (termed lifter racks) which are supported near their centres so as
to have free end way motion and so as to be capable of rocking or tilting on their
support. The other ends of the said lifter racks rest in slots formed in the levers
(termed card levers) which rest on and are actuated by the buttons of the cards
passing under them the said lifter racks being tilted by the rising and falling
inotion of the card levers and their hooked ends are thus caused to engage either
with the rib on the upper lifter bar or with that on the lower lifter bar according
as the said racks are tilted by the said levers. The rack teeth on the lifter racks
are geared with toothed sectors formed on or affixed to excentrics mounted on a
shaft which excentrics when the hooked ends of the lifter racks are engaged with
the lifter bars actuate levers by which the required motion is given to the healds
the said levers being connected to the said healds by wires and chains as usual.
These levers are mounted on a shaft which is provided with adjustable supports by
which their range of motion and consequently the size of the shed may be
regulated
45
lathe" and all the levers
To provide for the "turning on" ie the placing of the
connected with the healds so as to admit of free access to the warp threads in order
that broken threads may be mended an arrangement of levers and catches is used
mounted on a sliding bar so arranged in proximity to the upper lifter bar that on
the said catches being allowed to fall they engage with lugs on the said lifter bar
and it and the said sliding bar are thus caused to move together and the lifter racks
engaged with the said upper lifter bar are pushed forward by the said bar and
the levers connected to the healds are thus brought all into the same line. The
loom is then stopped
When the loom is again started the catches by which the lifter bar is connected
to the sliding bar are automatically disengaged therefrom
The excentrics which work the levers connected to the healds are all of the same
size but of different throw the extent of the throw of each of the several excentrics
being such as will produce an even.shed.

page_text: The said improvements consist further of an improved form of cards the
construction of which is hereinafter described. The said cards consist of strips of
sheet metal having ears formed at their ends the said strips being bent up near
their ends into a plane at right angles to their other parts and connected together
side by side by pins or rivets passed through holes in the said ears the several strips
when thus connected forming an endless chain. In the said strips apertures are
formed in which the card buttons are placed and are secured by rods which pass
through holes in them and in the bent up ends of the cards the projecting ends of
which rods serve to engage the cards with the roller on which they are mounted
when placed in the loom
The said improvements consist further of the arrangement hereinafter described
for actuating the shuttle boxes for manifold shuttle changes. According to the
said arrangement lifter racks arranged and worked as hereinbefore described with
reference to first head of invention are geared with toothed sectors formed on or
secured to cams mounted so as to be capable of rotation on a shaft the number of
which cams varies according to the number of shuttle changes required. Abovo
the said cams levers carrying rollers are mounted which levers as the cams rotate
on their shaft are raised more or less according to the size of the cams. The said
levers are connected at their free ends by rods and other levers with the shuttle
boxes which by the action of the cams on the said levers are raised and lowered as
required. The several cams are brought into action at the required times by the
card buttons actuating the lifter racks which gear with the toothed sectors on the
cams as herein before described with reference to the first head of invention The
said cams are provided with brakes or friction straps or bands kept in contact with
the cams by means of springs the tension of which is capable of being regulated by
screws and screw nuts.
The said improvements consist further of the arrangement hereinafter described
for controlling automatically the release of the picker arms According to this
arrangement the arms or levers by which the picker catches are worked and which
ordinarily form part of the picker catches are jointed thereto in such a manner that
the said arins or levers turn on their joints when moved in a plane at right angles
to that in which they move to release the picker arms while their action
when moved in the direction necessary to release the picker arms is the same as
that of fixed arms or levers of the ordinary kind. The said jointed levers are
connected by straps levers and rods to the brake levers mounted in the shuttle
boxes in the path of motion of the shuttles the jointed lever on the right
side of the loom being connected to the brake lever in the shuttle box on the left
side of the loom and vice versa. By this arrangement the automatic release of
the pickers is effected with greater precision and regularity than by other
arrangements.
The said improvements consist further of an improved arrangement of the stop
motion ordinarily used in German looms which consists of a spring bolt working in
guides affixed to the frame of the loom one end of which bolt is caused to project
into the path of motion of a catch carried by a toothed wheel mounted on the main
shaft when necessary by the action of a lever jointed to the lathe and actuated by
the shuttles. This arrangement acts imperfectly the loom not being stopped with
certainty and the lathe being frequently broken. According to the said improved
arrangement the stop bolt stands normally in the path of motion of the stop catch
and is connected by means of levers and rods with the mechanism by which the
jointed arms of the picker catches hereinbefore described are actuated. The stop bolt
is thus withdrawn only when a shuttle enters its box on one or other side of the
loom the said stop bolt being actuated by the shuttle and being quite independent
of the lathe.
Having thus described the nature of my Invention I will proceed to describe
the manner in which it is to be performed with reference to the accompanying
drawings and to the letters and tigures marked thereon. The same letters and
figures of reference indicate the same parts in the several Figures of the drawings.

page_text: Figure 1 of the said drawings is a front elevation Figure 2 is an end elevation
of a loom to which my improvements are applied. In the remaining Figures of
the drawings parts of the loom to which the several improvements hereinbefore
described are applied are shown separately drawn to a larger scale than the said
Figures 1 and 2
shaft E
A is the frame of the loom B is the warp beam C is the driving pulley which is
mounted on a fixed shaft c' and has affixed to it a pinion c² which gears with a
toothed wheel d' mounted on a shaft D the said wheel and pinion being enclosed
by a guard d. is the heart shaped cam mounted on the said shaft D which cam
actuates the mechanism by which the healds are worked which mechanism is
shown separately (partly in section) in Figure 3 and is hereinafter described.
d dare the levers bearing against the cam done on each side thereof the said
levers being connected by a bar d. d is the rack connected to the lever d³ e¹ is
the toothed sector and E is the shaft to which it is affixed with which sector the
rack de gears e² is a plate affixed to the
ees are the lifter bars which
are connected to the plate e by rods e e. a¹ a¹ a² a² are the slides in which the
lifter bars work and e7 e8 are the ribs formed on the bars e e F F are the lifter
racks which rest near their centres on the rod f1. ff are the hooks or lugs on
the said lifter racks with which the ribs e7e8 on the bars e es engage g¹g are the
card levers in slots in the free ends of which the ends of the lifter racks rest
and G is the card roller carrying the cards g² g² the buttons gå g³ of which passing
under the card levers g¹ g¹ cause the ends of the lifter racks engaged with the said
levers to rise and fall the hooks or lugs f2f" on the said racks when their outer
ends are raised by the card levers being caused to engage with the rib e' on the
bar e and the lugs f³ f³ being caused to engage with the rib es on the bar e when
the outer ends of the said racks are lowered. h₁h are the toothed sectors with
which the teeth on the lifter racks F F engage h2 h² are the excentrics formed on
the said sectors and H is the shaft on which they are mounted. One of the said
sectors and its excentric is shown separately in Figure 4 are the levers
connected to the healds 22 by rods and chains is 23 and actuated by the
excentrics h h2. I is the shaft on which the said levers are mounted and
work the said shaft being supported by plates it is adjustably secured to the frame
of the loom and capable of being raised and lowered by set screws . By raising
or lowering the shaft I the range of motion of the levers mounted on it
and consequently the size of the " shed may be increased or diminished. The
arrangement of the lifter bars cams and sectors and heald levers is shown
separately in central vertical section in Figure 5. As will be seen by reference to
the said Figure 5 the excentrics ²² are all of the same size but of different
throw the throw of the several excentrics being such as will produce an even
"shed" J is the sliding bar working in guides (not shown in the drawings) by the
action of which bar the levers are brought into the same line when free access
to the warp threads is required j¹ (Figure 3) is one of the levers and is one of
the catches mounted on the said bar J and e9 is one of the lugs on the sliding
bar e with which the catches engage when they are allowed to fall. The said
catches are held in the raised position shown in Figure 3 when the loom is
working by means of a finger K which bears against the lever j¹. The said
finger K is formed on a pin which works in the frame of the loom and
has affixed to it at its outer end another finger or lever k² to which is connected
a wire by which the said fingers are actuated as required. When the said
fingers are in the position shown in Figure 3 the catches are held clear of
the lugs on the lifter bar e and when in the position shown in Figure G the said
fingers are clear of the levers and the said catches engage with the said lugs.
When the bar J and the lifter bar et are thus coupled they move together and the
lifter racks F F are pushed forward by the said bar J into the position shown in
Figure 6 and the levers are thus brought in line. When the parts are in this
position the loom is stopped. When the loom is again started the bar J is driven
back to the position shown in Figure 3 and the catches are then automatically
"

page_text: disengaged from the lugs e on the lifter bar e by the lever j striking the finger K.
The card roller G is actuated in the ordinary manner.
The action of the whole arrangement is as follows:-On rotatory motion being
communicated to the pulley C from any suitable motor reciprocatory motion is
communicated through the levers d³ d rack sector e' shaft E plate e² and
connecting rods e e to the lifter bars e e5 and by the lifter bar e to those of the
lifter racks F F the outer ends of which are raised by the action of the card
buttons on the card levers g¹g and by the lifter bar. et to those of the lifter
racks F F the outer ends of which are engaged with those of the card levers which
are not so raised. The said lifter racks when motion is communicated to thein
actuate the heald levers i¹¹ through the excentrics h² ² with the toothed sectors
'h' on which excentrics the said racks gear.
The construction of the cards is shown in Figures 7, 8 and 9 of the
accompanying drawings and is hereinafter described with reference to those
Figures. g g are the strips of sheet metal g g are the bent up ends of the said
strips and go go are the ears by which they are jointed together g° are the apertures
in the strips g' are the buttons placed therein and g³ are the rods by which the
said buttons are secured the projecting ends g of which rods engaging with notches
in the flanges g10. (see Figure 3) of the card roller G serve to secure the cards to
their roller. The rods g are prevented from slipping endwise by cords g10 passed
through holes g" in their projecting ends or by spring cotters passed through the
said holes.
The arrangement for actuating the shuttle boxes for manifold shuttle changes
is shown separately partly in section in Figure 10 of the accompanying drawings
and part of the mechanism connecting the said arrangement with the shuttle
boxes is shown separately in Figure 11
In the said arrangement the lifter racks and parts by which they are actuated
being similar to those hereinbefore described with reference to the arrangement for
working the bealds illustrated in Figure 3 of the accompanying drawings it is
unnecessary again to describe thein. L are the toothed sectors with which the
said lifter racks are geared l'are the cams formed on the said sectors and lis
the shaft on which the sectors are mounted. M M' are the levers mounted above
the cams m' m' are the rollers carried by the levers M M'.
N. N (see
Figures 1 and 2) are the shuttle boxes and m² m³ m³ m³ m³ m² m³ m³ and m10 are
the rods and levers by which the levers M M' are connected to the said shuttle
boxes are the friction brakes consisting of straps or bands of steel covered
with leather which straps or bands bear on the collars formed on the cams l¹¹or
on drums affixed to the said collars
are the springs by which the said bands
are kept in tension and 15 15 are the screws and 10 16 the screw nuts by which the
tension of the springs is regulated
The action and method of using this arrangement are as follows:-The rotatory
motion of the shaft D is converted into reciprocatory motion by the cam d' which
motion is communicated to the lifter racks as herein before described with reference
to the arrangement for working the healds. The lifter racks give motion through
the sectors L L and cams to the levers M M the elevation or depression of the
lever M acting through the connections m³ m³ m² m² m10 causing the shuttle boxes
on the right of the loom to be raised or lowered and the elevation or depression of
the lever acting through the connections m³ m³ m³ m³ causing the shuttle
boxes on the left side of the loom to be raised or lowered. The raising and
lowering of the shuttle boxes is thus governed by the arrangement of the buttons
in the card.
•
The object of the brake bands ³ ³ is to prevent the action of the lifter bars on
the cams being anticipated by the weight of the descending shuttle boxes. By
the arrangement described and illustrated of the said brake bands they are caused
to resist the motion of the said cams only when they are turning in the direction
necessary to lower the shuttle boxes. When the said cams are turning in the

page_text: reverse direction the springs yield and the brake bands being thus slackened
they do not resist the motion of the cams.
Figure 12 of the accompanying drawings is a section of part of the arrangement
shown in Figure 11 the said section being taken on the line and drawn to a
larger scale. Figure 13 is a similar section of an arrangement in which two cams
are used.
The cards used with this arrangement are similar to those bereinbefore
described and illustrated in Figures 14 and 15 Figures 16 and 17 are separate
views of the cams 1. When three shuttle boxes are used on each side of the
loom two cams are required to each of the levers M M¹ and when four shuttle
boxes are used three cams are required to each of the said levers
In order that one motion may suffice for raising and lowering each shuttle box
and replacing it by any one of the others required the buttons must be arranged in
the card so that the cams of all the boxes from the one to be exchanged to that for
which it is to be exchanged (taking them from top to botton or vice versu) may
be simultaneously moved backward and forward therefore as many buttons must
be inserted in the card as may be required to effect this. Thus when it is required
to bring in position the first shuttle box on the left of the loom and the third
shuttle box on the right of the loom two buttons must be placed in the card one in
the second aperture from the right and one in the third aperture from the right as
shown in Figure 17 When it is required to bring in position the second shuttle
.box on the left of the loom and the fourth shuttle box on the right of the loom
one button must be placed in the third aperture from the left of the card and
buttons must be placed in all three opertures on the right of the card as shown in
Figure 17b.
The arrangement for controlling automatically the release of the picker arms is
shown separately in front elevation partly in section in Figure 18 and in transverse
section in Figure 19 of the accompanying drawings. 001 are the picker catches
and o o¹ are the arms by which they are worked the said arms being jointed at o² 0²
oos are springs by which the said arms are restored to their normal positions after
being turned on their joints as hereinafter described
P Pare levers mounted on the lathe the upper ends of which levers are
connected to the brake levers n' n¹ in the shuttle boxes N N. The said levers P P¹
are connected to the arms o o¹ respectively as hereinafter described. The lever P
is connected to the arm o¹ of the picker catch O' by means of the band p¹ lever p²
shaft på lever p' rod p³ and lever p to the shaft p on which the said lever P is
mounted and the lever P' is connected to the arm o of the picker catch O by means
of the band på lever p³ shaft p10 lever 21 rod p12 and lever 213 to the shaft p14 on
which the said lever P' is mounted. The levers P P¹ are held in the position shown
in Figure 19 by the springs which bear on the brake levers one of which springs
is shown at n³ Figure 1
The picker catches are actuated in the ordinary manner by levers QQ carrying
screw pins q' q' vibratory motion being communicated to the said levers by a rod q²
connected to a pin on a crank q³ which is driven by toothed gearing from the
shaft D. The action of this arrangement is as follows;-when a shuttle enters the
box on the left side of the loom the lever P is driven forward (in the direction of
the arrow Figure 19) and the arm o¹ of the picker catch O¹ on the right side of
the loom is turned on its joint and removed from the path of motion of the
screw q carried by the lever q². The picker catch on that side is therefore not
actuated and the picker arm q (which actuates the shuttle by means of a spring
arrangement) is not released by the picker catch. The action of the pickers is thus
automatically controlled with great precision and certainty
The stop motion is shown in the section Figure 19 and part thereof in Figure 18.
R is the spring bolt are the guides in which it works, 2 is a lever by which
the said stop bolt R is withdrawn and is another lever connected to the said
lever by a rod r. The lever r³ is mounted on a shaft 75 on which is also
mounted another lever the free end of which is enlarged at 7 and stands in
the paths of motion of arms p¹³ 2210 formed respectively on the levers p

page_text: hereinbefore referred to. This arrangement acts as follows. The bolt R stands
norinally in the path of motion of the stop catch and is withdrawn only on a
shuttle entering its box on one or other side of the loom the said bolt being then
withdrawn by the action of one or other of the arms p¹³ ple on the lever 76
connected with the said bolt
The arrangement for working the "lathe" is shown in Figures 2, 19 and 20 and
consists of a cam d³ on the shaft D with which cam a plate 83 carried by and free
to turn on a pin s¹ on a lever S engages the said lever being connected with the
"lathe" by a bar 8
Having thus described the nature of my invention and the manner in which it
is to be performed I wish it to be understood that I do not limit myself to the
precise details hereinbefore described as they may be varied without departing from
the nature of my Invention but I claim as my said Invention of "Improvements
in power looms and in appliances connected or used therewith."
First The general combination and arrangement of parts constituting the
mechanism for actuating the healds herein before described and illustrated in the
accompanying drawings
Secondly The arrangement of excentrics and heald levers herein before described
and illustrated in the accompanying drawings.
Thirdly The construction and arrangement of parts constituting the improved
cards hereinbefore described with reference to and illustrated in Figures 7, 8 and 9
of the accompanying drawings.
Fourthly The arrangement hereinbefore described and illustrated in Figures 3
and 6 of the accompanying drawings for bringing all the heald levers into line that
is to say a sliding bar provided with catches and arranged in such a position
relatively to the upper lifter bar that the said bars may be connected and caused
to move together the action of the first named bar on the lifter racks when the
two bars are thus connected being to force the heald levers into the required
position
Fifthly The general arrangement and combination of parts constituting the
mechanism for actuating the shuttle boxes hereinbefore described and illustrated in
the accompanying drawings.
Sixth The use in an arrangement for effecting the movement of the shuttle
boxes of several cams acting on one and the same lever the said cams being
respectively of the height required to raise the shuttle boxes to the required
position the said cams being worked by lifter racks gearing with toothed sectors
and actuated by cards substantially as herein before described and illustrated in the
accompanying drawings
Seventhly The arrangement herein before described and illustrated in the
accompanying drawings for controlling the motion of the cams by which the
levers connected to the shuttle boxes are actuated the said arrangement consisting
essentially of break straps bearing on drums formed on or affixed to the said
cams the said straps being so arranged and connected with springs as to cause
resistance to the motion of the cams when turning in the direction for lowering
the shuttle boxes and to allow free motion to the said cams when turning in the
opposite direction
Eighthly The general combination and arrangement of parts constituting
the mechanism for automatically controlling the action of the picker catches
hereinbefore described and illustrated in the accompanying drawings
Ninthly-Jointing the arms of the picker catches to the said catches so that
when necessary the said arms may be withdrawn from the path of motion of the
mechanism by which they are struck to actuate the said catches their action when
not so withdrawn being the same as that of rigid arms substantially as herein-
before described and illustrated in the accompanying drawings
Tenthly Connecting the jointed arms of the picker catches to the brake levers
in the shuttle boxes so that on a shuttle entering a box the picker catch arm

page_text: connected to the lever therein is withdrawn from the path of motion of the
mechanism by which the picker catch is actuated
Eleventhly The improved arrangement of mechanism constituting the stop
inotion hereinbefore described and illustrated in the accompanying drawings.
Twelfthly Arranging the stop bolt and the mechanism by which it is actuated
so that the said bolt stands normally in position for stopping the loom and is
withdrawn only by the action of the shuttles in entering the boxes
In witness whereof I the said Robert Jacob Gülcher have hereunto set my
hand and seal this eighteenth day of January in the year of our Lord
one thousand eight hundred and eighty three