Improvements in and connected with the Manufacture of Wire Netting.
Year: 1892

page_text: Date of Application, 8th Apr., 1892
Complete Specification Left, 9th Jan., 1893-Accepted, 8th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in and connected with the Manufacture of Wire
Netting.
We, THE WHITECROSS COMPANY, LIMITED, of Warrington, in the County of
Lancaster, Wire Manufacturers, and WALTER MILNER, the Secretary of the said
Company, do hereby declare the nature of this invention to be as follows:-
This invention relates to the production or manufacture of wire netting having
different sizes of mesh, and to the mode or method of, and machinery for
producing it.
The invention as hereinafter described is applied to the manufacture of the
differential or compound mesh netting in which one half or part is of one size and
the other half or part is of another size: for example, the one mesh may be half
the size of the other.
In making wire netting according to this invention two rows or sets of wires
are employed as is done in making wire netting by the ordinary kind of machines
above referred to, the pitch however of the wires is close on one side and on the
other side relatively large, and they are adapted to be twisted about each other
and moved in relation to each other laterally in the manner which will be now
described.
The method of arranging and working or moving the wires is as follows:-One
part of one set of wires used to form the smaller mesh netting may have no lateral
movement, that is, their position is a fixed one as regards lateral movement, and
they are only rotated in the action of twisting, whilst the other part of said set of
wires have lateral movement and are alternately moved nearer and then away from
the former wires, the amount of movement they receive being equal to the pitch
of the latter wires. Thus the lateral position of the wires of one row is fixed on
the side on which the smaller mesh is to be produced, whilst the position of the
wires of this row on the other side, namely, on the side the larger mesh is produced,
is movable.
Now respecting the other row of wires, the positions of these wires are all shifted
simultaneously and equally, to and fro, after each twisting together of the wires
forming the two rows, and the extent of each to and fro shift or change of position
is equal to the pitch of one part of the wires of the other row, but the direction of
movement of this row and the wires forming half (or part) of the other rows is
opposite and simultaneous, that is when receiving lateral motion the direction of
the movement of these two sets of wires is opposite.
If these operations are carried out some wires will be shifted laterally a distance
equal only to their pitch, but the combined lateral movements of the parts of the
large pitched wires equals in extent their pitch. Hence, each movement of wires,
after the twisting operation has been performed, brings the wires of the two rows,
both on the side at which the small mesh is produced and that on which the larger
one is produced, opposite each other and in the proper position for being twisted
about each other. A suitable machine constructed and adapted to carry out the
above described method of operation or movement of wires wherein split or divided
pinions are used and work in laterally movable plates or beams, consists in
adapting one beam or plate to be moved to and fro whilst the beam or plate at the
other side is made up of two parts, one of which is adapted to be moved laterally
simultaneously with but in an opposite direction to the opposite one, whilst the
other part is fixed or stationary. The split or divided "pinions in one part of
one beam or plate and the part of the beam opposite it, are pitched apart on the
£8
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page_text: "
in the
larger pitching to produce the larger mesh, whilst the half "pinions
stationary part of the other beam or plate, and in that part of the one opposite
it are pitched apart on the smaller pitching to produce the small mesh of the
netting.
The to and fro reciprocating motions of the moving beams are effected in any
suitable way, it being arranged that one is moved outwards and the other inwards
and rice versa, simultaneously, after each twisting action of the two rows of wires.
In conclusion it is to be understood that the invention is not confined to the
particular mechanisms specified as it may be carried out by different mechanisms
and in modified ways without departing from the main or controlling features
thereof.
D 7th IS A 1000
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicants' Patent Agents.
COMI LELE DI FULTIVATION.
Improvements in and connected with the Manufacture of Wire
Netting.
We, THE WHITECROSS COMPANY, LIMITED, of Warrington, in the County
of Lancaster, Wire Manufacturers, and WALTER MILNER, the Secretary of the
said Company, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
This invention relates to the production or manufacture of wire netting having
different sizes of mesh, and to the mode or method of, and machinery for
producing it.
The invention as hereafter described is applied to the manufacture of the
differential or compound mesh netting in which one half or part is of one size, and
the other half or part is of another size; for example, the one mesh may be half
the size of the other.
In making wire netting according to this invention, two rows or sets of wires
are employed as is done in making wire netting by the ordinary kind of machine,
the pitch however of the wire is close on one side, and on the other side relatively
large, and they are adapted to be twisted about each other, and moved in relation
to each other laterally, in the manner which will be now described.
The method of arranging and working or moving the wires is as follows:-One
part of one set of wires used to form the smaller mesh netting may have no lateral
movement, that is, their position is a fixed one as regards lateral movement, and
they are only rotated in the action of twisting, whilst the other part of said set of
wires have lateral movement and are alternately moved nearer and then away from
the former wires, the amount of movement they receive being equal to the pitch of
the latter wires. Thus the lateral position of the wires of one row is fixed on the
side on which the smaller mesh is to be produced, whilst the position of the wires
of this row on the other side, namely, on the side the larger mesh is produced, is
movable.
Now respecting the other row of wires, the positions of these wires are all shifted
simultaneously and equally to and fro, after each twisting together of the wires
forming the two rows, and the extent of each to and fro shift or change of position
is equal to the pitch of one part of the wires of the other row, but the direction of
movement of this row and the wires forming half (or part) of the other row is opposite
and simultaneous, that is when receiving lateral motion the direction of the movement
of these two sets of wires is opposite.
If these operations are carried out, some wires will be shifted laterally a distance
equal only to their pitch, but the combined lateral movements of the parts of the

page_text: 66
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larger pitched wires equal in extent their pitch. Hence, each movement of wires,
after the twisting operation has been performed, brings the wires of the two rows,
both on the side at which the small mesh is produced and that on which the larger
one is produced, opposite each other and in the proper position for being twisted
about each other. A suitable machine constructed and adapted to carry out the
above described method of operation or movement of wires wherein split or divided
pinions are used and work in laterally movable plates or beams, consists in
adapting one beam or plate to be moved to and fro, whilst the beam or plate at the
other side is made up of two parts, one of which is adapted to be moved laterally,
simultaneously with, but in an opposite direction to, the opposite one, whilst the
other part is fixed or stationary. The split or divided "pinions" in one part of
one beam or plate and the part of the beam opposite it, are pitched apart on
the larger pitching to produce the larger mesh, whilst the half "pinions" in the
stationary part of the other beam or plate, and in that part of the one opposite
it, are pitched apart on the smaller pitching to produce the small mesh of the
netting.
The to and fro reciprocating motions of the moving beams are effected in
any suitable way, it being arranged that one is moved outwards and the other
inwards and rice versa, simultaneously, after each twisting action of the two rows
of wires.
The invention will now be described with reference to the accompanying
drawings in which
Figures 1 and 2 are diagrammatic views illustrating the mode or method
according to the invention of moving the wires in producing the netting; whilst
Figures 3 and 4 are plans of the beams or plates, arranged and constructed
according to the invention, of the type used in machinery commonly employed for
making wire netting, in which split and shifting "pinions" are used to guide and
twist the wires, Figure 5 is a cross section of same.
As this type of machinery is so well known and understood, it is unnecessary to
shew the other parts.
In the diagram shewn in Figures 1 and 2, the line A A may be taken to represent
the line to one side of which the smaller mesh lies or exists, and at the other the
larger one exists.
On the left hand side of A A it will be seen that the pitch of the wires is close,
and on the right hand relatively large-just twice as large. Two rows of wires
are employed, as is done in making wire netting by the ordinary kind of machines
above referred to, and they are adapted to be twisted about each other, and moved
in relation to each other, laterally in the manner which will now be described.
The method of arranging and working or moving the wires is as follows:-The
wires designated a, b, c, d, have no lateral movement, that is, their position is a
fixed one as regards lateral movement, and are only rotated in the action of
twisting, whilst the wires 1, 2, 3, have lateral movement, and are alternately
moved nearer to and then away from the wires a, b, c, d, the amount of movement
they receive being equal to the pitch of the latter wires. Thus the lateral
position of the wires of one row is fixed on that side of the line A A on which
the smaller mesh is to be produced, whilst the position of the wires of this
row on the other side of A A-namely, on the side the larger mesh is produced-is
movable.
Now respecting the other row of wires designated a², b¹, c¹, d¹, and 1, 2, 3*, the
position of all these wires is shifted simultaneously, and equally, to and fro, after
each twisting together of the wires forming the two rows, and the extent of each
to and fro shift or change of position is equal to the pitch of the wires a, b, c, d ;
but the directions of movement of this row (a, b, c, d, 1, 2, 3), and that of the
wires 1, 2, 3, forming half or part of the other row, are opposite and simultaneous,
that is when receiving lateral motion the direction of the movement of these two
sets of wires is opposite.
If these operations are carried out, and assuming the first position is that shewn

page_text: in Figure 1, the change produced in the relative positions of the two rows will be
that represented in Figure 2, the wires a¹, b, c, d, and 1, 2, 3* will be shifted
laterally a distance equal only to their pitch, but the combined lateral movements
of the wires 1, 2, 3, and 1, 2, 3, equals in extent their pitch and their shifting
has produced the rearrangement of relative dispositions shewn. Hence each
movement of wires after the twisting operation has been performed, brings the
wires of the two rows, both on the side at which the small mesh is produced and
that on which the larger one is produced, opposite each other and in the proper
position for being twisted about each other." The guiding or lateral carrying, and
the twisting of the two rows of wires may be carried out by any suitable kind of
mechanism, but in Figures 3, 4, and 5, is illustrated, as above stated, parts of a
machine, constructed and adapted to carry out the above described method of
operation or movement of wire, wherein split or divided "pinions
are used and
work in fixed and in laterally movable plates or beams.
دو
The wires in these figures are designated by the same letters and figures as those
shewn in Figures 1 and 2.
are
The construction of this type of machine according to the present invention,
consists in adapting the whole beam or plate A to be moved to and fro, whilst the
opposite beam or plate is made up of two parts B and C, one of which, B, is adapted
to be moved laterally simultaneously with, but in an opposite direction to, A. whilst
the other part C is fixed or stationary. The split or divided " pinions
designated y y and are mounted, and rotate exactly as are those of the ordinary
machines of this kind, except that the half "pinions" in the beam or plate B, and
those in the part of the beam A opposite it, are pitched apart on the larger pitching
to produce the larger mesh; whilst the half "pinions" in the stationary beam or
plate C, and those in that part of A opposite it, are pitched apart on the smaller
pitching, to produce the small mesh of the netting.
The to and fro or reciprocating motions of the beams or plates A, B, are effected
in any known or obvious suitable way, it being arranged that A is moved outwards
and B inwards, and vice versa, simultaneously after each twisting action of the two
rows of wires.
It will be understood that the beams or plates shewn are what are known as the
upper beams or plates, and that corresponding lower beams or plates, wire
bobbins, &c., would be employed as usual.
D in Figure 5 represents a part of the ordinary drawing off or feeding pegged
roller of the machine; are the wires, the half pinions y, y¹ being provided
with the usual holes for the wires to pass through. E is the ordinary rack in
the beam A by which the whole of the "pinions" y y₁ are rotated. Of course
this one rack will effect the rotation of the half "pinions" both in C and B, as
will be understood.
In Figure 3, what is termed the first position of the beams or plates is shewn, and
in Figure 4 their second position is illustrated.
In conclusion it is to be understood that the invention is not confined to the
particular construction specified with reference to the drawings, as it may be
carried out by mechanisms being merely modifications or equivalents thereof,
without departing from the main or controlling features thereof.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claimed is:
1. The mode of manufacturing or producing wire netting of differential mesh
substantially as herein described, that is to say, by arranging the wires forming the
rows or sets of wires from which the netting is to be made at different pitches, and
giving the wires which are to form the larger mesh a combined movement equal to
their pitch, and those which are to form the smaller mesh a movement equal to their
pitch, after each twisting, in the manner herein set forth.
2. Machinery for producing or manufacturing wire netting of differential mesh

page_text: wherein a part of one beam or plate is stationary and the other part adapted to be
moved, the whole of the other beam or plate being adapted to be moved; sub-
stantially as and for the purposes described.
Dated this 6th day of January 1893.
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicants' Patent Agents.