CERTAIN IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1860

page_text: LETTERS PATENT to John Knowles, of Lower Broughton, near Man-
chester, in the County of Lancaster, Machinist, for the .Invention of
"CERTAIN IMPROVEMENTS IN LOOMS FOR WEAVING."
Sealed the 3rd July 1860, and dated the 6th January 1860.
PROVISIONAL SPECIFICATION left by the said John Knowles at the
Office of the Commissioners of Patents, with his Petition, on the 6th
January 1860..
I, JOHN KNOWLES, of Lower Broughton, near Manchester, in the County of
Lancaster, Machinist, do hereby declare the nature of the said Invention of
"CERTAIN IMPROVEMENTS IN LOOMS FOR WEAVING," to be as follows:-
My said improvements have reference partly to apparatus commonly known
as "index machines," and employed in power looms for the purpose of raising
and depressing the healds in combinations. varied according to the order or
arrangement of pins, prominences, 'or projections presented in succession by a
circulating pattern chain or revolving barrel; partly to apparatus for changing
the shuttles where two shuttles are used, and partly to the mechanism applied
for actuating the taking-up wheels.
The first improvement consists in making the treadles or sliding, cross bars
of index machines to act upon the rods through the medium of oscillating
catch bars with hooked ends pivoted on studs carried by the rods and vibrated
so as to throw one of the hooked ends of each of them within the sweep of its
corresponding treadle by the vertical or oppositely diverging arms of shaped or
treble armed levers, which arms serve to project or advance the upper or lower

page_text: hooked ends respectively of the oscillating catch bars, according as the hori
zontal or third arm of the lever is raised or depressed by the pattern chain.
The second improvement consists in applying an index rod constructed and
worked in the manner lastly before described, to the purpose of raising and
depressing the lifting lever of a system or pair of moveable shuttle boxes.
The third improvement consists in applying an index rod constructed and
worked in the manner lastly before described, to the purpose of actuating the
ratchet click or catch of the taking-up apparatus.
The fourth improvement consists in using two index rods for each leaf of
healds, one for raising and the other for depressing. Each rod has only one
hook, and is acted upon by only one of the treadles, and the rods are so con-
nected or arranged that those connected with the same leaf of healds cannot
both fall within the sweeps of their respective treadles at the same shedding.
The fifth improvement consists in arranging the index rods horizontally, and
in causing them to work in a horizontal direction, and in connecting them to
the vertical or pendant arms of T-shaped or treble-armed levers, the hori-
zontal or laterally diverging arms of each of which levers are connected to a
leaf of healds, which is thereby raised or depressed according to the oscillations
of the lever derived from the motion of its corresponding index rod.
'
The sixth improvement consists in causing the reciprocating motion of hori-
zontal index rods, moving in the direction of their length, to raise and depress
the healds by means of slots, grooves, ribs, or flanches formed in or upon or
attached to the said index rods, and oblique to or inclined at a suitable angle
with the direction of the motion of the said index rods. The slots, grooves,
ribs, or flanches produce the movement of the healds by raising or depressing
friction rollers pivoted upon slips, which are free to move only in the vertical
direction, and are connected to the jacks or levers to which the healds are
attached.
'
The seventh improvement consists in applying an index rod constructed and
worked in the manner lastly before described, to the purpose of elevating and
depressing the lifting lever of a system of moveable shuttle boxes.
The eighth improvement consists, in causing the reciprocating motion of
index rods moving in the direction of their length, to raise and depress the
healds by producing a reciprocating rotatory motion in wheels or pulleys, the
circumferences of which wheels or pulleys take up or give out portions of
cords thereto attached, and connected also with the jacks or levers by which
the healds are suspended and moved..

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Knowles in the Great Seal Patent Office on the
6th July 1860.
L
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
KNOWLES, of Lower Broughton, near Manchester, in the County of Lancaster,
Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of January, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-third year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said John Knowles, Her special licence that I, the said John
Knowles, my executors, administrators, and assigns, or such others as I, the
said John Knowles, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "CERTAIN IMPROVE-
MENTS IN LOOMS FOR WEAVING," upon the condition (amongst others) that I,
the said John Knowles, my executors or administrators, by an instrument in
writing under my or their or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Knowles, do hereby declare the
nature of my said' Iuvention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, to elucidate which I have hereunto annexed two Sheets of Draw-
ings, containing Diagrams or Figures explanatory of the arrangements
intended to be described. To the parts of these Figures I shall refer as
occasion requires, by means of the alphabetical and numerical characters
written thereon, similar characters being used to denote similar parts or things
when they recur.
My Invention applies, firstly, to the apparatus commonly known as index
machines, and employed in connection with power looms to vary the division
of the healds in shedding, so that the upper and lower portions of any shed
may each be composed of a group of healds selected and pre-arranged accord-
ing to the figure or face intended to be produced on the fabric; secondly, to

page_text: mechanism or apparatus for changing one shuttle for another in weaving, and
commonly known as "drop boxes," and thirdly, to that part of the loom which
effects the taking up of the woven fabric, and which is usually termed the
'taking up motion." The Invention comprises the several improvements
herein-after described.
"
:
. The first of my said improvements consists in constructing index machines,
in such manner, that the treadles or sliding cross bars thereof shall act upon
the index rods, by means of oscillating catch bars armed at both extremities
with hooks or claws, the middle parts of the said catch bars being pivoted
upon studs projecting from the index rods, and being made (by vibrating in
the required direction) to present one or the other of their respective hooks
or claws to the proper treadle according as the particular index rod. is to be
raised or depressed. The hooks or claws of the catch bars are projected or
advanced so as to intercept the treadles by the transverse or oppositely diver-
gent arms of shaped or three-armed levers, the third or remaining arms of
which levers are raised or depressed by the links of a circulating pattern chain,
some of which links are adapted to raise the lever arms and thereby advance
the upper hooks of the catch bars, the others to depress the lever arms and
thereby advance the lower hooks.
The construction and arrangement of these parts are exhibited in Figure 1,
Sheet 1, in which a represents one of the index rods. It is a flat bar inserted
between corresponding openings in two grids or gratings, by which it is res-
trained from lateral movement. b, b, are the treadles shewn in section; they
are made to recede from and approach each other alternately at the open-
ing and closing of each shed. 61, 61, are flanches extending from the outward
odges of the treadles, and overlapping shoulders a¹, a¹, formed on the index
rod a, thereby restraining the latter from rising or falling beyond its allowed
limits and serving to bring it back to its middle position after each elevation or
depression. A little space should be left for clearance between the flanch 6³,
and the shoulder a', when the treadle is at the extremity of its outward range,
so that upon the latter commencing its return the hook of the catch bar may
be enabled to release itself from the lip 6, of the treadle before the index rod
begins its reverse movement. The lips 6, 62, of the treadles impart motion to
the index rod by becoming engaged with the hooks c, c, of the catch bar c,
when the latter have been projected beyond the edge of the index rod; c is
the catch bar; it oscillates upon the stud c', on the index rod, and its extremi-
ties terminate in 'hooks or claws c, c; c³, c³, are pins or stops upon the index
rod which limit the inclination of the catch bar in either direction; d is the
three-armed lever which goverus the position of the catch bar c, and projects.

page_text: one of the hooks of the latter at each shedding, so as to intercept its corres-
ponding treadle. The lever d has its fulcrum at d, being pivoted on a
shaft or spindle in the framing of the machine; its transverse arms d², d², are
in contact with the opposite ends or arms of the catch bar, whilst its third or
remaining arm drests upon the uppermost link for the time being of a
pattern chain carried by the barrel or cylinder f; the latter receives from the
loom a step by step revolving motion which takes place in the intervals between
the sheds so that at each successive shedding a fresh link is presented to the
arm d³, of the three-armed lever d. The links are of two kinds, some of them
being formed with swells.or prominences as at 6, e, others being blank or without
the swells as at e'; '; 'the' former by elevating the arm advance the arm d³,
which causes the upper hook c³ of the catch bar c to intercept the treadle, and
the index rod to be thereby raised; the latter allow the arm ď³ to fall, and the
lower hook of the catch bar to be presented to the treadle, which causes the
depression of the index rod; hence the movements of the index rod a, at each
successive shedding, will be upward or downward according to the kind of
link presented by the immediately preceding advance of the barrel f, and the
order in which such movements succeed each other will correspond with
the order in which the links are arranged in the formation of the chain.
Index machines constructed according to this improvement may be applied
to looms in the same manner as ordinary index machines, the ends of the index.
rods being connected to the jacks by cords, and motion being imparted to the.
treadles by any of the methods commonly resorted to for the like purpose. It
is evident that lags and pegs of the kind commonly used may be substituted
for the pattern chain as a means of raising the three armed levers. The index
machine may be applied either at the top or side of the loom, where that course
is considered desirable; but the position which I prefer to assign to it is on
the floor near to the loom side, as represented in Figures 8 and 9, Sheet 2.
By the aid of these and the other Figures on the same Sheet, I propose to ex-
emplify the best mode according to my estimation of applying my improved
index machine to govern the shedding operations of the loom.
Figure 8 is an elevation view of so much of the side framing and other parts
of the loom as will suffice for the purpose of this explanation; and Figure 9 is
a front view of parts exposed by a longitudinal vertical section of half the loom
at the dotted line 1.... 2 in Figure 8, the index machine appearing in both
views in juxtaposition with the side of the loom.
.
A, A, A, represent parts of the ordinary framing of the loom; B, B, are the
upper, and C, C, the lower jacks between which the healds are suspended in
the usual manner; g. 9, 9, 9, is the frame of the index machine, the adjustable

page_text: feet of which, g', 9', are firmly affixed to the floor; a, a, a, are the index rods;
b, b, the treadles; d, d, d, the three-armed levers which regulate the catch bars;
e, e, e, is the pattern chain composed of several parallel series of links, each
series formed after the manner previously described, and the number of them
corresponding with the number of leaves of healds employed; f is the chain
barrel. The construction and operations of these parts will be sufficiently
understood from what has gone before. The chain barrel f turns in bearings
at g, 9, and the requisite motion is communicated to it, and to the treadles
from the tappet shaft in the following manner, the understanding of which will
be facilitated by an inspection (along with Figures 8 and 9) of the detached
Figure 10, which latter is a front view of the mechanism lying immediately
behind and partly concealed by the index machine.. h is the end of the tappet
shaft of the loom. Upon it is keyed the small spur wheel h', which gears with
another spur wheel k of the same size carried by a stud k', projecting towards
the loom side from an arm or bracket of the framing of the index machine.
In Figure 8, the end of this stud appears at ke'. Affixed to and revolving with
the
spur wheel k, is a cam or groove plate ³, the face of which is traversed by
a groove which twice approaches towards and twice recedes from the centre of
the plate to equal distances in each case respectively, so that the configuration
or outline of its track is nearly elliptical. It follows, from what has been
stated, that this plate makes one revolution for every revolution of the tappet
shaft. 1,1, are two levers, the fulcra of which are studs P, , fixed in the lateral
branch or bracket of the frame of the index machine which carries the stud .
The extremities of the lever 1, l, are attached (by joint pins or studs working
in slots) to the treadles 6, b. The levers 7, 1, nearly touch the face of the
grooved plate, and are furnished each with a bowl or friction roller, one of
which is shewn in dotted lines at , which rollers enter the groove of the plate,
and are consequently compelled to rise or fall as the grooved plate revolves to
accommodate themselves to the changes in the position of the groove, in other
words they are compelled to approach towards and recede from the centre of
the plate as the groove approaches or recedes. Hence, by each revolution of
the grooved plate, or of the tappet shaft, the levers 1, 1, and with them the
treadles b, b, are twice elevated and depressed, and two sheds are formed in
the warp.
•
In front of and affixed to the grooved plate is a small pin wheel m carrying
two pins m², m². A small shaft or spindle n revolves in a step or bearing
carried by the lateral bracket of the index machine framing before mentioned.
Upon the shaft n is an intermittent wheel n', which gears with the pin wheel m.
The opposite extremity of the shaft n, or that which projects towards the front

page_text: of the index machine is connected with the shaft f of the chain barrel f by the
bevil wheels n², f. The number of notches in the intermittent wheel n¹ is the
same as the number of working positions to be assumed by the chain barrel f,
in one revolution. Each half revolution of the pin wheel m and grooved
plate, therefore taking one tooth of the intermittent wheel n² advances the
chain barrel through a corresponding portion of its revolution, causing it o
present a fresh set of links to act upon the three-armed levers, and to produce
a new disposition or combination of the index rods (and of the healds) which
are to form the next succeeding shed. It will be observed that the pins m³,m³,
are represented in the Figure as being placed a little in advance of what may
be termed the transverse axis or longest diameter of the groove in the plate k³,
which is done in order that the catch bars of the index rods may be properly
disposed before the movement of the treadles commences.
1
In Figure 11, Sheet 2, I have given an enlarged Drawing of the links of
the pattern chain and the section of the chain barrel on a scale approximating
to the probable natural size. The mechanism previously described for trans
mitting the proper motions from the tappet shaft to the treadles, and also for
giving the necessary step-by-step rotation to the chain barrel, are not to be
understood as parts of my Invention, but only as directions to the machinist
or workman for applying the same in the most efficient manner.
My second improvement consists in adapting and applying an index rod
constructed and arranged in a manner similar to that lastly before described
to the purpose of imparting occasional motion to a cam wheel or tappet, which
latter, by means of swells or prominences upon its edge, regulates the position
of the lifting lever of a pair or system of moveable shuttle boxes.
:
After the previous description of the improved index rod, the adaptation
and application of it now under notice will be understood by a very brief
explanation and reference to the Diagram, Figure 2, Sheet 1. a is the index
rod, which in this case should be formed with an expanded top, or have a pin
passed through its upper end to prevent the further descent of the, rod
when it has reached its lowest position. The lower extremity of the rod is
formed into a hook or claw a'; b. is one of the treadles employed to lift the
rod. As the rod acts in the rising direction only (or at least only in one
direction), one treadle suffices to actuate it. For the same reason the catch
bar c need not be provided with more than one hook; d is the three-armed
lever; o is a cam wheel or tappet of the kind commonly used for altering the
position of the lifting lever of moveable shuttle boxes, and is provided with the
usual swells or prominences for that purpose; but it must be observed, that
these swells must have more dwell than is usually assigned to them, because

page_text: the cam.must have brought the swell to bear on the lifting lever to its full
extent before the full shed is made, and therefore the rotation of the cam will
be continued after the movement of the boxes is accomplished. The cam o is
provided with pins o', o', o', o', by which the hook a² of the rod a is enabled
to lay hold of and turn the cam whenever the catch bar is thrown into gear
with the treadle, and the rod a consequently lifted. It will be seen that the
result of this arrangement is, that the position of the cam will be shifted, and
the shuttle changed so often as the circulating pattern chain presents a lifting
link under the thrée-armed lever d. 02 is the friction roller or bowl at the
extremity of the lifting lever, and p is a spring to press the rod a up to the
pins o¹. The rod a will generally be sufficiently heavy to descend by its own
gravitation, but if not, a weight sufficient to depress it may be attached to it
or suspended from it.
My third improvement consists in adapting and applying an index rod, con-
structed according to the improvement firstly described, to the purpose of
actuating the ratchet click of the taking-up apparatus at intervals determined
by the selection and order of the links which compose the pattern chain.
The index rod applied for this purpose may be constructed similarly to that
lastly before described, but without the hook at its foot; it may have an
expanded top or a stop pin therein, and the catch bar formed with only one
hook. The manner in which it communicates the required impulses to the
taking-up click is shewn in Figures 8 and 9 of Sheet 2. Q (Figure 8) is the
ordinary taking up ratchet wheel; q is the driving click, which is hung on a
stud in the lever q', the latter having for its fulcrum the stud which carries
the ratchet wheel. The free end of the lever q' is connected by the rod q³
and joint pins to the free end of a second lever q³, the fulcrum of which is a
stud in the framing of the index machine; q' is the index rod appropriated
to the taking up motion, and qº the separate pattern chain which actuates 'the
three-armed lever q in connection with the catch bar thereof. The foot of.the
rod is connected by a cord or rod to the lever q³ at an intermediate' point
between the fulcrum of the said lever and the rod q³, so that whenever the
catch bar of the rod q is thrown into gear with its treadle, the lever q³ is lifted,
and along with it the lever q', which carries the driving click; thé latter
thereupon takes up a tooth in the ratchet wheel, but when blank links occur in
the chain q no motion is communicated to the index rod and levers, and the
taking up action of the driving click is suspended. The working of the
apparatus can therefore be regulated so as alternately to retard and accelerate
the taking up by the manner of compounding the links of the pattern chain q³.
My fourth improvement applies to ordinary index machines, and consists in

page_text: using, in connection with each leaf of healds, two separate and distinct index
rods, the one for raising, the other. for depressing the jacks. The rods differ
in construction from those ordinarily used only in being provided each with a
single hook, and in being actuated always by the same treadle. The treadles
are on opposite sides of the rods, and the hooks of the latter are presented in
opposite directions. The pair of rods attached to each leaf of healds are
arranged back to back in such juxtaposition that the mechanism which places
one rod in gear with its treadle necessarily throws the other out, so that only
one rod of each pair can be raised or depressed by its treadle at each shedding.
The general configuration and arrangement of the rods will be readily under-
stood. by an inspection of Figure 3, Sheet 1, in which r, r, are the index rods,
,, the treadles (in section), ³, the pattern chain or barrel, and 1³, a slight
spring to press the rods up towards the barrel.
My fifth improvement applies also to index machines of the ordinary con-
struction, and consists in arranging the same in an horizontal position, making
the index rods to work in an horizontal direction, and connecting the latter
with the jacks and healds through the medium of T-shaped or three armed
levers, the vertical arms of which are attached to the index rods, whilst the
horizontal or laterally diverging arms are attached or connected to the jacks
or healds, which are thereby raised or depressed according to the oscillations
of the three-armed lever derived from the to-and-fro motion of its corre-
sponding index rod. The lateral arms of the T lever in this arrangement
occupy the place of the ordinary lower jacks. A diagram representing this
arrangement is given at Figure 4, Sheet 1. s is the horizontal index rod, and
s', s, its hooks, one of which is thrown into gear at each shedding with one of
the treadless,, (shewn in section) by the swells, risers, or pegs on the
pattern. chain or barrel s³; t is the three-armed lever, the fulcrum of which is
at t, and the vertical arm of which is attached to its proper index rod at t',
while one of the horizontal arms is connected at the point by cords with the
upper jack, the opposite one at the point to the lower heald stave. The
manner in which the combined movements of the several parts are effected is
precisely as in other ordinary index machines, the position of the machine
and direction of the motions of the parts only being altered from perpendicular
to horizontal.
My sixth improvement consists in a method of constructing index rods
which work horizontally, and which raise or depress the healds by means of
slots, grooves, ribs, or flanches formed in or raised upon the said index rods,
and having a direction oblique or inclined to the direction of the motion of
the rods. The rods being made to move longitudinally by the usual means,

page_text: the slots, grooves, ribs, or flanches, raise or depress friction rollers pivoted
upon studs or pins projecting from vertical rods which work transversely to
the index rods, and have their extremities attached to the jacks after the
manner in which common index rods are generally attached thereto. A
correct idea of this arrangement will be easily gathered from an inspection of
the Diagram, Figure 1, Sheet 1, in which v represents one of the horizontal
index rods, which is free to move lengthwise in the grids v, v, but without
lateral or edgewise deviation; is a slot or groove, the sides of which confine
the friction roller mounted upon a stud projecting from the face of the
upright rod . The latter is confined by grids so that it is free to move only
in the direction of its length, but not laterally nor edgewise. It is evident
that the to-and-fro movement of the rod v will necessarily produce an up and
down movement in the rod v³, which movement is made available for lifting|
or depressing the healds by the attachment of the ends of the rod vs to the jacks
in the ordinary way, the rods ³ thus assuming the place of the ordinary index
rods. The rod v being restrained from moving edgewise has a moveable part
or prolongation attached to it by a pin joint v, upon which moveable part the
hooks are formed. v, v, are the sections of the treadles, and v³ is the pattern
chain or barrel for throwing the part into connection with one or the other
of the treadles, according to the part of the chain or barrel brought forward
by the step-by-step rotation of the latter.
My seventh improvement consists in adapting and applying an index rod
constructed according to the method lastly before described, to the purpose of
elevating and depressing the lifting lever of a pair of moveable shuttle boxes.
The index rod in this case may be constructed and applied in the same
manner as that lastly before described, the foot of the rod being connected
to the lifting lever so as to govern its movements. It is to be observed also
that the pattern chain or barrel must have links or pegs of three different
degrees of altitude, the third or extra links being for the purpose of elevating
the books of the part into an intermediate position clear of both treadles,
so that the motion of the rod v may be suspended for so long as the shuttle in
use for the time being is required to continue at work.
Another method of adapting and applying an index rod of the same kind to
the same purpose is illustrated by the Diagram Figure 6, Sheet 1, where w is
the index rod; w³, the groove; and w³, the friction roller. In this case the
roller w² is pivoted on the end of the lifting lever itself; w³ is the lifting lever,
which has its fulcrum at w', and is connected with the moveable boxes by the
rod w³.
My eighth improvement consists in causing the reciprocating motion of

page_text: index rods to raise and depress the healds, by communicating a reciprocating
rotatory motion to wheels or pulleys, the circumferences of which wheels or
pulleys take up or give out portions of cords thereto attached, and connecteil
also with the jacks or levers by which the healds are suspended and moved.
In carrying out this improvement, the index rods may be applied either in the
vertical or horizontal position. In the Diagram, Figure 7, Sheet 1, which is
given to explain this arrangement, the horizontal position has been shewn as
the one adopted; but it is evident that the method is equally applicable with
vertical index rods. In the Diagram a represents one of the index rods, x¹, a¹,
its hooks, a, a, the treadles, a, the pattern chain or barrel. x is one of the
wheels or pulleys, to which the rod x is attached by the fork and pin a³, so
that the motion of the index rod in either direction causes the pulley to revolve
partially upon its axis in a corresponding direction. a, a, are cords attached
the one to the upper and the other to the lower jacks, and both to the pulley
at the points a, x7. Through these cords, the motion of the pulley conveys the
required motion to the jacks and healds.
In the foregoing description of my second, fourth, fifth, sixth, seventh, and
eighth improvements, I have not deemed it necessary to do more than explain
the application of the principles of the improvements to the particular parts of
the machines especially concerned. The manner of combining those parts and
of embodying them in complete machines are matters of general practice and'
well understood, so that any competent mechanic conversant with the class of
machinery to which my Invention has reference, will find the directions herein
given amply sufficient to enable him to apply or incorporate any of the specified
improvements with the machines now in common use.
I shall conclude by briefly recapitulating the improvements which I hereby
claim as of my Invention, and which are,-
Firstly, constructing the rods of index machines with their catch bars, three-
armed levers, and treadles, in such manner that the treadles shall act upon the
rods through the medium of the catch bars, according to the manner herein-
before described and set forth.
Secondly, adapting and applying index rods, constructed and combined with
catch bars and three-armed levers, similarly to those lastly before mentioned, to
the purpose of raising and depressing the lifting levers of moveable shuttle
boxes, in manner herein-before described and set forth.
Thirdly, adapting and applying index rods, constructed and combined with
catch bars and three-armed levers, similarly to those mentioned in the first
claim, to the purpose of actuating the driving click of the taking-up apparatus,
in manuer herein-before described.

page_text: Fourthly, the use and application in index machines of the ordinary con-
struction of two index rods for each leaf of healds, according to the manner
herein-before set forth and mentioned. .
Fifthly, arranging index machines in an horizontal position and connecting
their index rods with the healds through the intervention of three-armed or
T-shaped levers, as herein-before described.
Sixthly, constructing horizontal index rods adapted to raise and depress the
healds by means of inclined slots, grooves, ribs, or flanches; according to the
manner herein-before described.
Seventhly, constructing horizontal index rods adapted to elevate and depress
the lifting levers of moveable shuttle boxes by means of inclined slots, grooves,
ribs, or flanches, according to the manner or manners herein-before explained.
And, eighthly, constructing index rods adapted to raise and depress the
healds by means of rotary motion communicated to wheels or pulleys, according
to the manner herein-before described.
In witness whereof, I, the said John Knowles, have hereunto set
my hand and seal, this Fifth day of July, in the year of our Lord
One thousand eight hundred and sixty.
Signed and sealed by the said John
Knowles, in the presence of
JNO. TAYLOR, Patent Agent,
Manchester.
JOHN KNOWLES. (LS.)