IMPROVEMENTS IN THE MANUFACTURE OF WIRE NETTING AND IN APPARATUS THEREFOR
Year: 1884

page_text: I, WILLIAM FREDERICK DENNIS, of 101 Leadenhall Street, in the City of
London, Mechanical Engineer, do hereby declare the nature of said invention for
"IMPROVEMENTS IN THE MANUFACTURE OF WIRE NETTING AND IN APPARATUS
THEREFOR," to be as follows:-
My invention relates to the manufacture of wire netting of the ordinary
hexagonal mesh type, wherein four sides of each mesh are formed of single wire,
whilst each of the remaining two sides are formed of double wires twisted
together. Such netting is commonly furnished with a straight selvage wire at
each edge, and occasionally with an additional central wire to assist in resisting
longitudinal elongation.
According to the method hitherto commonly employed in the manufacture of
wire netting of the kind alluded to, two distinct series of wires are used; those
belonging to one series being carried by bobbins mounted on fixed pins, whilst those
belonging to the other series are formed into coils-commonly known as "springs."
These are sometimes enclosed within spools or tubular envelopes, and have lateral
and rotative movements alternately imparted, to them. The several bobbin-wires
are led to and along the several spools respectively, and pass through orifices in
blocks which are capable of being rotated with the spools in such a manner that
each pair of wires, proceeding from the bobbins and spools respectively, is capable
of being twisted together the required number of turns. The bobbin-wire-guide-
blocks and the spools are then moved laterally in opposite directions half the
distance between the twists in the wire netting; whereupon each bobbin-wire
arrives opposite the next adjacent spool-wire, the newly constituted pairs of wires
being twisted together as before. A reverse lateral movement is-subsequently
imparted to the bobbin-wire-guide-blocks and to the spools, thus restoring them to
their previous positions and bringing the wires in each series opposite those they
originally corresponded with respectively. The series of operations described is.
then repeated.
This system of manufacture is objectionable on account of the limited space
afforded for the spools, the diameter of which must necessarily be somewhat less
than the distance between each two adjacent twists; that is to say, the diameter of

page_text: the mesh measured across between its two opposite twisted sides. These spools
can therefore be charged with only a, comparatively small quantity of wire, and
this has to be formed into a closely coiled inass in order to be introduced into the
spool. In addition to the coil being thus limited in quantity, it is necessary for
the wire of which it is composed to be of comparatively high quality and mild in
character; otherwise, in coiling it to form the "spring" or in uncoiling it during
the progress of the netting manufacture, it is liable to fracture. The waste of
material consequent on the use. of short lengths of wire is also considerable; and
much time is lost during the process of manufacture owing to the machine having
to be frequently stopped to permit of one or other of the spools being replenished
and the new wire connected up to the portion of the netting already made.
The object of my invention is to overcome these objections; and for this purpose
I employ a system of manufacture and mode of construction which permit both
series of wires to be carried on bobbins and the use of spools and "springs" to be
dispensed with.
..
In carrying out my invention, I. employ a disc mounted on a central pivot to
which a rocking motion is imparted. In the periphery of the disc are mounted a
series of semi-cylindrical spindles, each of which carries at one end a bobbin and
has secured at its opposite end. a toothed pinion. Surrounding the disc and closely
fitting its periphery is a ring secured to or forming part of the framing of the
machine. In the internal surface of this ring is mounted a second series of
semi-cylindrical spindles, each of which carries at one end bobbin; these
bobbins being arranged on the same side of the ring as those on the disc. The
circumferential distances between the spindles mounted respectively in the disc and
ring coincide. The pinions, before referred to as secured to the spindles mounted
in the disc, gear with a central toothed wheel, by means of which they may be
rotated the requisite number of revolutions for twisting each pair of wires together,
according to the number of twists desired; two to four twists being commonly
employed. Although only one of the series of spindles is provided with driving
pinions, it will be understood from the 'construction described that each of these,
being semi-cylindrical, actuates its corresponding balf-spindle in the other series;
each pair of bobbins being thus rotated about the common axis of the two
half-spindles by which they are mounted.
By means of suitable and intermittently acting mechanism, the disc is caused to
partake of a to-and-fro rotative or rocking motion; the extent of its circumferential
travel corresponding with the distance apart of the spindles mounted in its
periphery. The motion of the toothed wheel about its centre coincides with that
of the disc so long as the latter rotates, and is then continued sufficiently to impart
the requisite number of revolutions to the pinions. Thus each half-spindle mounted
in the disc partakes of a circumferential motion about the axis of the latter and
then makes a certain number of revolutions about the axis common to itself and
its fellow half-spindle. These several motions are then repeated in the opposite
direction and the cycle of operations is complete.
It will be obvious that the same results could be obtained with a stationary disc
and a movable ring; or both bodies might partake of a rocking or rotative motion,
if preferred.
Under certain circumstances, it is permissible for the motion of the disc to be
always in the same direction, instead of to-and-fro as described.
At a convenient distance from the face of the disc and ring carrying the bobbins
is arranged apparatus for twisting the several pairs of wires together in the
formation of the netting.
The mechanism for this purpose consists of two series of half-spindles, each series
being carried in semi-cylindrical bearings formed in a bar. The faces of the bars
in which these bearings are formed are opposite to and in contact with one another;
and the pitch (or distance laterally from centre. to centre) of adjacent bearings in
each bar corresponds with that desired for the mesh when measured across between
its two opposite twisted sides.

page_text: Each bar carrying its series of half-spindles receives an intermittent reciprocating
motion equivalent to half the aforesaid pitch; the motions of the two bars being
however in opposite directions.
Corresponding ends of the half-spindles are furnished with half-pinions, which,
gearing with a rack or racks, enable each pair of half-spindles to be rotated about
their common centre. The half-spindles employed in the twisting mechanism are
hollow and permit the longitudinal passage of the wires about to be employed in
the formation of the netting.
The wires from the several pairs of bobbins mounted on the disc and ring before
described and which may be termed the countertwist apparatus-are led through
the several pairs of half-spindles in the twisting mechanism; and, according to
the number of twists desired in the netting, the several pairs of bobbins and
of twisting spindles are rotated. The bobbins mounted on the disc of the
countertwist apparatus are then shifted to the next, adjacent bobbins carried by
the wheel; and similarly the two reciprocating bars of the twisting mechanism
shift the half-spindles they respectively carry in such a manner that the com-
bination of wires thereby established corresponds with that prevailing in the
countertwist apparatus. These several pairs of wires having been twisted and
countertwisted as before, but in the reverse direction, the disc returns to its original
position; and the twisting spindles together with the wires they carry resume
their normal relationship.
From the foregoing description it will be perceived that a similarity of action
prevails between the twisting and countertwisting apparatus. This is in certain
respects essential; but an important distinction is that, whereas the twisting
devices consist primarily of bipart spindles which must be placed close Yogether
according to the requirements of the mesh, the space occupied by the bobbins
supplying the wires to these spindles is not subject to limitations prescribed by the
size of the mesh to be produced.
Beyond the twisting mechanism is mounted a roller, the surface of which is
provided with studs or other projectious suitable for engaging in the meshes
of the netting. This roller has imparted to it, by means of suitable feed-gear, an
intermittent rotative motion, and operates to feed the wires through the machine"
by a pulling action as the netting is formed. Other means may, however, be
employed for this purpose.
In a machine of the character described, wire netting may be manufactured of a
width corresponding with the full number of bobbins and wires the machine is
designed to carry; or of any less width desired, subject to a minimum variation of
half the width of a mesh. Or two or more pieces of netting of the same or different
widths may be produced simultaneously.
It will be readily understood that instead of arranging the axes of the twisting
devices in the same horizontal or otherwise disposed plane or planes, they may be
arranged on parallel cylindrical or segmental surfaces pivotted concentrically.
Under such circumstances, the twisting spindles during their lateral movements
travel in circular arcs instead of rectilineally; and for imparting the requisite
rotative movements to the same, toothed sectors, mounted on the same centre, may
be employed..
;

page_text: COMPLETE SPECIFICATION.
I, WILLIAM FREDERICK DENNIS, of 101, 'Leadenhall Street, in the City of
London, Mechanical Engineer, do hereby declare the nature of my Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF WIRE-NETTING AND IN APPARATUS
THEREFOR" and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
My Invention relates to the manufacture of wire-netting of the ordinary
hexagonal mesh type, wherein four sides of each mesh are formed of single wire,
whilst each of the remaining two sides are formed of double wires twisted together.
Such netting is commonly furnished with approximately straight selvage wire at
ench edge, and occasionally with an additional central wire to assist in resisting
longitudinal elongation.
According to the method hitherto commonly employed in the manufacture of
wire-netting of the kind alluded to, two distinct series of wires are used; those
belonging to one series being carried by bobbins mounted on fixed pins, whilst
those belonging to the other series are formed into coils, commonly known as
springs." These are sometimes enclosed within spools or tubular envelopes, and
have lateral and rotative movements alternately imparted to them. The several
bobbin-wires are led to and along the several spools respectively, and pass through
orifices in blocks which are capable of being rotated with the spools in such a
manner that each pair of wires, proceeding from the bobbins and spools respectively,
is capable of being twisted together the required.number of times. The bobbin-
wire-guide-blocks and the spools are then moved laterally in opposite directions
half the distance between the twists in the wire-netting; whereupon each bobbin-
wire arrives opposite the next adjacent spool-wire, the newly constituted pairs of
wires being then twisted together as before. A reverse lateral movement is sub-
sequently imparted to the bobbin-wire-guide-blocks and to the spools, thus restoring
them to their previous positions and bringing the wires in each series opposite those
they originally corresponded with respectively. The series of operations described
is then repeated.
This system of manufacture is objectionable on account of the limited space
afforded for the spools, the diameter of which must necessarily be somewhat less
than the distance between each two adjacent twists; that is to say, the diameter
of the mesh measured across between its two opposite twisted sides. These spools
can therefore be charged with only a comparatively small quantity of wire, and
this has to be formed into a closely coiled mass in order to be introduced into the
spool. In addition to the coil being thus limited in quantity, it is necessary for the
wire of which it is composed to be of comparatively high quality and mild in
character; otherwise, in coiling it to form the "spring" or in uncoiling it during
the progress of the netting manufacture, it is liable to fracture. . The waste of
material consequent on the use of short lengths of wire is also considerable; and
much time is lost during the process of manufacture, owing to the machine having
to be frequently stopped. to permit of one or other of the spools being replenished
and the new wire connected up to the portion of the netting already made.

page_text: The object of my invention is to overcome these objections; and for this purpose
I employ a system of manufacture and mode of construction which permit both
series of wires to be carried on bobbins, and the use of spools and "springs" to be
dispensed with.
In carrying out my Invention, I employ apparatus such as represented in the
accompanying drawings; whereof Figure 1 is a vertical longitudinal section, and
Figure 2 a plan view. Similar letters of reference will be used to indicate corre-
sponding parts in all the Figures. a is a disc mounted on a central shaft a¹ carried
in bearings in the standards a a³. To the disc an to and fro vibratory motion is
imparted by means of the lever b and pin 6. The lever bis secured to a rocking
shaft, mounted in the standard a³, and is actuated by the lever b' (as will be here-
after explained with reference to Figure 3). In the periphery of the disc a are.
mounted a series of semi-cylindrical spindles o, each of which carries at one.end a
bobbin or reel d. Surrounding the disc a and closely fitting its periphery is a
ring e, secured to the foundation or framing of the machine, by means of a leg e¹
on each side. In the internal surface of the ring e is mounted a second series of
semi-cylindrical spindles c¹, each of which carries at one end a bobbin or reel d';
these bobbins being arranged on the same side of the ring e as those on the disc a.
To the opposite end of each of the semi-cylindrical spindles ca pinion ƒ may be
secured for the purpose of rotating the said spindles; but I prefer, as a matter of
convenience, to secure the pinions to the spindles c¹. The bobbin-carriers are
shown in face view in Figure 1. The circumferential distances between the
spindles mounted respectively in the disc a and ring e coincide. For the purpose
of avoiding confusion in the drawings Figures 1 and 2, only a few of the spindles
co¹, bobbins d d, and pinions f are shown. The pinions f gear with a central
toothed wheel g, by means of which they may be rotated the required number of
revolutions, according to the number of times each pair of wires is required to be
twisted together in the formation of the netting; two to four twists being
commonly employed. (The actuation of the toothed wheel g will be hereafter
explained with reference to Figure 4). Although only one of the series of
spindles c is provided with driving pinions f, it will be understood from the
construction described that each of these, being semi-cylindrical, actuates its
corresponding half-spindle in the other series; each pair of bobbins d d¹ being
thus rotated about the common axis of the two half-spindles whereby they are
mounted.
The disc a is caused to partake of a to and fro rotative or rocking motion by
means of intermittently acting mechanism, such as represented in Figure 3 which
shows a face view of that side of the disc a and of the ring e on which the
bobbins & are arranged. Upon the main shaft h is secured a cam i having in
its face a groove formed in two loops, an inner and an outer one, the two loops
crossing one another. Sliding in the groove is a crescent-shaped piece & mounted
on a pin in the rod i³. One end of this rod is guided by means of its forked end
engaging with the shaft h, whilst the opposite end of the rod i³ is connected to the
lever 6. Upon the shaft h and cam i being rotated, the crescent-shaped piece i
remains during a considerable portion of the revolution at a constant distance
from the centre of the said shaft; but during the passage of the inwardly inclining
section of the groove past the crescent-shaped piece i³, the latter is caused to pass
into the inner loop of the cam-groove where it remains at a constant distance
from the centre of the shaft h during a further considerable portion of the
revolution of the shaft and cam'i. During the passage of the outwardly inclining
section of the groove past the crescent-shaped piece 2, the reverse operation
takes place. Thus, during each successive revolution of the shaft h, the connecting
rod is caused to make a reciprocative movement alternately in opposite
directions; these motions being communicated by means of the levers 6' and b to
the pin b¹, and thus to the disc a; the motion being so adjusted that the circum-
ferential travel of the periphery of the disc corresponds with the pitch of the
geveral pairs of spindles cc carrying the bobbins d d. By these means, the

page_text: bobbins d'are each brought opposite their next adjacent bobbins d³, and, after a
certain interval, are caused to return to their original positions.
It is obvious that the design could be varied and the same results arrived at by
making the disc a stationary and the ring e movable; or both bodies might partake
of a rocking or rotative motion, if preferred.
For rotating the pinions f and bobbins dd, apparatus of the kind more
particularly represented in Figure 4 may be employed; this being a back
elevation of the disc a, the standard a³ (Figure 1) being removed. Upon the
main shaft h (Figure 1) is secured a spur-pinion h¹ which gears with a 2 to 1
toothed wheel k¹ keyed on the countershaft k; the latter accordingly making one
revolution to two revolutions of the shaft h. The extremity of the countershaft k
.carries a crank 7 (Figure 4) having a pin working a connecting rod l'. One end of
the rod is attached to a toothed sector 12 and imparts a vibratory motion thereto.
The opposite end of the connecting rod is formed with a long slot in which the
pin of the crank works; thus rendering the action of the crank inoperative
during two portions of its circular travel, the toothed sector 12 remaining at rest
during these periods. The extremities of the slot may be furnished with elastic
buffers, adjustable or otherwise, to ease the work on the crank-pin in overcoming
the inertia of the parts it is required to set in motion. The toothed sector 1 gears
with a toothed wheel mounted on and secured to the hub of the toothed wheel g.
By these means, an intermittent rotative motion is imparted to the toothed
wheel 9; and this being in gear with the pinions f, the latter are caused to rotate
a certain number of times in one direction, and then, after an interval of rest, to
make a similar number of revolutions in the opposite direction.
The motions derived from the cam i and from the crank are respectively so
timed with reference to each other that the connecting rod i³ moves the disc a
whilst the pin of the crank is travelling in the slot in the connecting rod ; and
the connecting rod l'operates the bobbin-pinions f whilst the sliding piece ¿²
remains in one or other of the concentric portions of the cam-groove i¹.
At a convenient distance from the face of the disc a and ring e carrying the
bobbins d d is arranged apparatus for twisting the several pairs of wires together
in the formation of the netting. The mechanism for this purpose consists of two
series of half-spindles m m³, each series being carried in semi-cylindrical bearings
respectively formed in the sliding bars n n¹. The faces of the bars in which these
bearings are formed are opposite. to and in contact with one another, as more
particularly shewn in Figure 5; and.the pitch, or distance laterally from centre to
centre of adjacent bearings in each of the bars n n', corresponds with that desired
for the mesh of the netting when measured across between two opposite twisted
sides. Each of the bars n n¹ carrying its series of half-spindles-m-m² receives an
-intermittent reciprocative motion equivalent to half the aforesaid pitch; the
motions of the two bars being, however, in opposite directions. The mechanism
employed herefor consists of a double groove face-cam o, of the same character as
herein before described with reference to Figure 3, mounted on and secured to the
shaft hand working a crescent-shaped sliding piece carried by the lower extremity
of the vibrating lever o¹; the latter being mounted on a pivot o² and coupled to
the bars n n respectively by means of the connecting rods o³ o*. Corresponding
ends of the half-spindles m m³ are furnished with half-pinions p p¹; which,
gearing with racks q q', enable each pair of half-spindles m m to be rotated about
their common centre. The mechanism employed for operating the racks q q¹ will
be readily understood on reference to Figure 6. h is the main shaft, the counter-
shaft furnished with a crank working a vibrating toothed sector r² by means of a
slotted connecting rod 72. The toothed sector 1 gears with the rack q¹, the
motions of which are communicated, but in reverse direction, to the upper rack q
by means of one or more pinions ³ mounted in fixed bearings. It will be
perceived that the mechanism here employed is of the same character as
previously described with reference to Figure 4; and its action will be readily
understood without further explanation. The motions are so timed that the

page_text: reciprocation of the sliding bars n n¹ takes place to a certain extent concurrently
with corresponding movements in the racks q q¹; otherwise, the half-pinions pp'
being in gear with the racks q q', there would be a tendency for the half-spindles
mm to be rotated before arrival in their new positions opposite one another.
The requisite lateral movements having however been completed, the continued
action of the racks q g¹ causes each newly constituted pair of half-spindles to
revolve about their common centre.
The half-spindles m m¹ are each perforated longitudinally to permit the passage
of the wires about to be employed in the formation of the netting.
The action of the apparatus is as follows. The wires from the several pairs of
bobbins dd, mounted on the disc a and ring e and which with the mechanism
appertaining thereto may be termed the countertwist apparatus, are led through
the several pairs of half-spindles m m³ in the twisting mechanism; and, according
to the number of twists desired in the netting, the several pairs of bobbins d di
and of twisting spindles m m¹ are rotated. By means of the cam i, the bobbins d
mounted in the disc a of the countertwist apparatus are then shifted opposite the
respectively next adjacent bobbins d' carried in the ring e; and similarly, by means
of the cam o, the half-spindles m carried in the sliding bar n are shifted opposite
the respectively next adjacent half-spindles m¹ carried in the sliding bar n¹; the
combination of wires thereby established corresponding with that prevailing in the
countertwist apparatus. By means of the crank r and connected mechanisin, the
various pairs of wires passing through the several pairs of half-spindles m m¹ are
twisted together; the crank b and its connected mechanism causing the several
pairs of bobbins d d to make a similar number of revolutions in the same direction.
By reverse movements, the disc as also the twisting spindles then resume their
original positions and normal relationships, whereupon the twisting and counter-
twisting operations are effected in the opposite direction.
From the foregoing description, it will be perceived that a similarity of action
prevails between the twisting and countertwisting apparatus. This is in certain
respects essential; but an important distinction is that, whereas the twisting
devices consists primarily of bipart spindles (m m¹) which must be placed close.
together according to the requirements of the mesh, the space occupied by the
bobbins dd' supplying the wires to these spindles is not subject to limitations
prescribed by the size of the mesh to be produced.
Beyond the twisting mechanism is mounted a roller 8, the surface of which is
provided with studs or other projection's s¹, as shewn in Figures 1 and 2, suitable
for engaging in the meshes of the netting. In Figure 2, only a portion of the roller.
surface is shewn furnished with such studs, by way of example. The roller 8 has
imparted to it, by means of suitable feed gear, an intermittent rotative motion and
operates to feed the wires through the machine by a pulling action as the netting is
formed. The mechanism for performing this duty consists of a cam t secured on
the main shaft h and operating a bar t¹. The arrangement of these parts is more
fully shewn in the detail views Figures 1b 2b; the former of these being a face
view of the cam, and the latter a side elevation shewing the connection with the
shaft of the feed-roller 8. The bar t¹ carries at one end a roller projecting into the
groove of the cam t and is connected at the other end to a vibrating lever {²
mounted, by preference freely, on the shaft of the roller 8. The bar t' is also
forked across the shaft h, the latter being thus utilized for the purpose of guiding
the said bar in its vertical movement. The motion derived from the cam t and
bar tis imparted to the roller s through a ratchet-wheel and pawl t; this mode
bf communication being preferred to keying the lever t to the shaft of the roller s
and working the latter direct, as affording means for slightly varying the length
of feed, an acceleration hereof being effected by substituting an interchangeable
ratchet-wheel of smaller diameter. It will however be understood that the throw
of the cam t should be determined in such a manner as to give as nearly as possible
the correct amount of rotation to the rollers; that is to say, a circumferential.
motion corresponding with the distance the longitudinal rows of studs s' are apart

page_text: The action of the feed mechanism is timed to take effect between the successive
operations of the twisting mechanism. Feed mechanism with constant or
continuous action may, however, be substituted without affecting the essential
features of my invention.
.
The netting, after passing over the feed-roller 8, may be wound off upon a drum u
mounted beneath and capable of being readily removed when filled.
The feed mechanism already described may be utilised for the purpose of
actuating the gathering drum u. On the shaft of the drumu is mounted a lever u¹
engaging at one end in a slot in the bar t¹ and loaded at its opposite extremity
with a weight or spring u³. The shaft of the drum u is rotated by means of a
ratchet-wheel u³ actuated by a pawl u mounted on the lever u¹: The action of
the apparatus is as follows:-The downward motion of the bar t¹ operating the
lever u has the effect of drawing back the pawl u and extending the spring u².
During the return motion of the bar t¹, the spring u³, acting on the lever u pawl u*
and ratchet-wheel u³, rotates the drum u to an extent sufficient to coil or gather
the length of netting delivered from the feed-roller s on the completion of each
row of meshes. Inasmuch as the effective diameter of the gathering drum gradually
increases as each coil of netting is wound upon it, whilst the rate at which the
netting is made remains constant, it is necessary for the drum u to be rotated.at
each operation of the machine through a gradually diminishing are; and it will be
seen that by means of the apparatus described this result is effected, the pin of the
lever u failing to a greater and greater extent to remain in the top of the slot in
the bar during the upward stroke of the latter.. Thus the roller e. may be
described as actuated with a positive feed-motion, whilst that. imparted to the
gathering drum u is of a permissive character.
In a machine of the character herein described, wire-netting may be manufactured
of a width corresponding with the full number of wires for which bobbins are
provided on the disc a and ring e; or of any less width desired, subject to a
minimum variation of half the width of a mesh. Or two or more pieces of netting
of the same or different widths may be produced simultaneously.
It will be perceived that instead of arranging the axes of the twisting
spindles (m m¹) in the same horizontal plane, the spindles may be arranged in
parallel cylindrical or segmental surfaces pivotted concentrically. Under such
circumstances, the twisting spindles, during their lateral movements, travel in
circular arcs instead of rectilineally; and for imparting the requisite rotative
movements to the same, externally and internally geared toothed sectors mounted
on the same centre may be employed.
Although in the machine described I have preferred to employ two longitudinal
shafts (h) for imparting the requisite motions to the various parts of the apparatus,
one shaft revolving at half the speed of the other, such an arrangement is not
essential.
Having thus particularly described and ascertained the nature of my invention
and in what manner the same is to be performed, I claim
First The improved method of manufacturing wire-netting by a continuous
process from wires carried on reels or bobbins, these being mounted in the outer
periphery of a disc and the inner periphery of a circumscribing ring and being
operated separately from mechanism engaged in alternately twisting each two
adjacent wires with each other and with their laterally contiguous wires, sub-
stantially as described. .
Secondly-In a machine for making wire-netting of the kind described, the
combination with mechanism for automatically changing the individual wires and
twisting the several pairs of wires together of automatically acting mechanism for
imparting corresponding movements to the wire-carrying reels, these.being mounted
in the outer periphery of a disc and the inner periphery of a circumscribing ring,
substantially as set forth.

page_text: Thirdly-In an automatic machine for making wire-netting of the kind described,
mounting two series of half bobbin-spindles respectively in the outer periphery of
a disc and the inner periphery of a circumscribing ring; one or both of these
bodies partaking of to and fro rotative motions, each successive motion bringing
the bobbin-spindles carried in the disc or ring opposite their severally next adjacent
bobbin-spindles carried in the ring or disc, substantially as described.
Fourthly In a. machine for making wire-netting from reel-carried wires, the
use of a crank and slotted connecting rod for intermittently rotating the bobbin-
spindles or the twisting spindles in each direction alternately, substantially as and
for the purposes described.
Fifthly In a machine. for making wire-netting from reel-carried wires, the
combination of mechanism for imparting intermittent to and fro rotative motions
to the body carrying one of the series of bobbin-spindles, or for imparting inter-
mittent lateral movements in each direction alternately to the twisting spindles,
substantially as set forth; said combination consisting of a face-cam with double
loop groove operating a crescent shaped sliding piece mounted on and imparting
motion to a reciprocating bar or vibrating lever in connection with the moveable
spindle bearings.
Sixthly In a wire-netting machine, the means, substantially as described, for
operating the feed-roller and gathering drum from the same cam; the motion
imparted to the former being of a positive character, and that to the latter
permissive.
G. G. M. HARDINGHAM,
Agent for the Applicant,
191, Fleet Street, London, E.C.