Improvements in the Manufacture of Wire Netting.
Year: 1892

page_text: Date of Application, 9th Feb., 1892
Complete Specification Left 9th Nov 1802 Accented 14th Jan 1903
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Wire Netting.
I, FRANCIS CHAPMAN, of 9 & 11 Feuchurch Avenue, in the City of London,
do hereby declare the nature of this invention to be as follows :-
.
According to this invention I construct wire netting with two or more sizes of
mesh in different parts of its width one portion of the width say along one edge
being of one size of mesh and the remainder of another size or sizes of mesh and
this I do without any extra wire or wires along the line or lines of junction between
the different sizes of mesh so that the netting may be made at less cost and of less
weight than if it were formed of separate narrow widths each formed of one size of
mesh only.
One wire which is nearest to the line of junction between the different sizes of
mesh and used in the formation of the sınaller meshes I cause to be twisted
wherever necessary with the next wire to it which is used in the formation of
the larger mesh. When one mesh is half the size of the other this can readily
be done.
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COMPLETE SPECIFICATION.
Improvements in the Manufacture of Wire Netting.
I, FRANCIS CHAPMAN, of 9 and 11, Fenchurch Avenue, in the City of London,
Engineer, 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 :-
According to this invention I construct wire netting with two or more sizes of
mesh in different parts of its width, one portion of the width, say along one edge,
being of one size of mesh and the remainder of another size or sizes of mesh, and
this I do without any extra wire or wires along the line or lines of junction between
the different sizes of mesh, to unite the two portions so that the netting may be
made at less cost and of less weight than if it were formed of separate narrow
widths each formed of one size only.
One wire which is nearest the line of junction between the different sizes of mesh
and used in the formation of the smaller meshes I cause to be twisted wherever
necessary with the next wire to it which is used in the formation of the larger.
mesh: when one mesh is half the size of the other this can readily be done. This
is illustrated in the drawings hereto annexed in Figures 1, 2 and 3, which shew an
ordinary wire netting machine modified to produce netting having two sizes of
mesh, one half the size of the other, as shewn in Figure 4. It consists in adapting
one of the beams or plates of such machine which carry ordinary "half-pinions" y,
namely, the 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; and so that the wire a nearest the line of junction between
the different sizes of mesh and used in the formation of the smaller meshes, is
twisted with the next wire a¹ to it, which is used in the formation of the larger
mesh. This action takes place when the beams are in the position shewn in
Figure 2. The beam or plate B. & C. are also provided with ordinary half
pinions y¹. These "half-pinions" y y¹ are mounted in and rotated exactly as are
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page_text: 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 above machinery may be actuated in the manner ordinarily used for machinery
of this type.
When these operations are carried out, assuming the first position is that shewn
in Figure 1, the change produced in the relative positions of the two rows of "half-
pinions" and wires will be that represented in Figure 2. The wires carried in and
moved by the plate A will be shifted laterally a distance equal only to their pitch,
but the combined lateral movements of the wires in B and those having the larger
pitch in A equal in extent their pitch, and their shifting has produced the
re-arrangement or 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 in the proper position for being twisted about
each other.
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, and the same distance after each
twisting action of the two rows of wires. The two positions of the plates are shewn
in the two figures.
D in Figure 3 represents a part of the ordinary drawing off or feeding pegged
roller of the machine; are the wires, the "half-pinions" y y' 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.
It will be understood that the beams or plates shewn are what are known as the
upper beams or plates, and that the usual lower beams or plates, wire bobbins,
etcetera, are employed as usual.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The manufacture of the wire netting herein described, consisting of netting
formed in one piece and having two or more different sizes of mesh in different
parts of its width; substantially as described.
2. The employment of the machine hereinbefore described and shewn for the
manufacture of the improved wire netting above claimed.
Dated this 8th day of November 1802
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.