Improvements in or relating to Wire Netting Machines.
Year: 1887

page_text: Date of Application, 24th Dec., 1887
Complete Specification Left, 24th Oct., 1888
Complete Specification Accepted, 30th Nov., 1888
PROVISIONAL SPECIFICATION.
Improvements in or relating to Wire Netting Machines.
I, FREDERICK ASHFORD WILMOTT of 30, 32 and 34 Rotherhithe Street, Rotherhithe,
London, S.E. Engineer, do hereby declare the nature of this invention to be as
follows:-
In wire netting machines there is a roller provided with pegs which as it revolves
engage with the meshes of the net and draw it along as it is made; this roller is of
small diameter usually made of wood. (into which the pegs are driven) upon an iron
core or shaft and being very long in proportion to the diameter and having to carry
the weight of the netting it usually saggs in the middle and it is to avoid this sagging
that this portion of the present invention is designed.
The difficulties to be overcome in connection with this roller are chiefly first to avoid
the pegs while supplying a substantial support to the roller and second to keep clear
of the "plates" which are generally close underneath the roller.
I get over all these difficulties by employing preferably two grooved pulleys which
allow the pegs to pass between their flanges which press upon the periphery of the
roller and so support it the path of the flanges being preferably protected with metal;
these pulleys are carried in a lever preferably horizontal, pivotted near its centre and
provided with an eye-bolt at the end remote from the pulleys, by which the lever is
turned upon its pivot so as to regulate the position of the pulleys to adapt them to
various sized rollers. The eye-bolt is screwed and carries nuts by which it is
secured in the framing of the machine or in a special bracket provided for the
purpose. The lever may be pivotted in a bracket attached to the machine for the
purpose.
The difficulty experienced with the "plates" which give motion to the pinions and
tubes which twist the wires is that the cams which impart the longitudinal travel to the
plates" are liable to lift them and in fact frequently do so in working in consequence
of which the tension of the wire-work upon the pegged roller is relaxed and tightened
again when the plates fall back thus imparting an uneven strain upon the roller and
n

page_text: spoiling the mesh of the wire-work besides interfering with the even working of the
machine. To obviate this drawback I only use cach cam to operate the "plate" to
which it belongs in one direction and let this be so that the pressure is applied down-
wardly and forwardly and to obtain the reverse traverse of the "plates" I couple them
at one or both ends by links jointed to a cross lever pivotted in the centre. By this
arrangement as the cam moves its own "plate" in one direction it at the same time
through the instrumentality of the lever and links pulls the other "plate" in the
opposite direction, the reversal of both " plates" being accomplished by the other
cam belonging to the other plate. This movement may be all located on top of the
plates where it is readily accessible whereas the ordinary movement is underneath
and difficult to get at.
*
The above description will serve to indicate the nature of my invention and one
way of carrying it into effect, but I desire to have it understood that I do not bind
myself to adopt that way only.

page_text: Improvements in or relating to Wire Netting Machines.
I, FREDERICK ASHFORD WILMOTT of 30, 32 and 34 Rotherhithe Street, Rothorhithe,
London, S.E., 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:-
In wire netting machines there is a roller provided with pegs which as it revolves
engage with the meshes of the net and draw it along as it is made; this roller is of
small diameter usually made of wood (into which the pegs are driven) upon an iron
core or shaft and being very long in proportion to the diameter and having to carry
the weight of the netting it usually sags in the middle and it is to avoid this sagging
that this portion of the present invention is designed.
The difficulties to be overcome in connection with this roller are chiefly first to avoid
the pegs while supplying a substantial support to the roller and second to keep clear of
the "plates" which are generally close underneath the roller.
I get over all these difficulties by employing preferably two grooved pulleys which
allow the pegs to pass between their flanges which press upon the periphery of the
roller and so support it, the path of the flanges being preferably protected with metal;
these pulleys are carried in a lever preferably horizontal, pivotted near its centre and
provided with an eye-bolt at the end remote from the pulleys, by which the lever
is turned upon its pivot so as to regulate the position of the pulleys to adapt them
to various sized rollers. The eye-bolt is screwed and carries nuts by which it is
secured in the framing of the machine or in a special bracket provided for the
purpose. The lever may be pivotted in a bracket attached to the machine for the
purpose.
The difficulty experienced with the "plates" which give motion to the pinions and
tubes which twist the wires is that the cams which impart the longitudinal travel to
the "plates are liable to lift them and in fact frequently do so in working in conse
quence of which the tension of the wire-work upon the pegged roller is relaxed and
tightened again when the plates fall back thus imparting an uneven strain upon the
roller and spoiling the mesh of the wire-work besides interfering with the even
working of the machine. To obviate this drawback I only use each cam to operate
the "plate" to which it belongs in one direction and let this be so that the pressure is
applied downwardly and forwardly and to obtain the reverse traverse of the "plates
I couple them at one or both ends by links jointed to a cross lever pivotted in the
centre. By this arrangement as the cam moves its own "plate" in one direction it at
the same time through the instrumentality of the lever and links pulls the other
"

page_text: "plate" in the opposite direction, the reversal of both "plates" being accomplished
by the other can belonging to the other plate. This movement may be all located on
top of the "plates" where it is readily accessible whereas the ordinary movement is
underneath and difficult to get at.
The above description will serve to indicate the nature of my invention and one way
of carrying it into effect, but I desire to have it understood that I do not bind myself
to adopt that way only.
In the accompanying drawings:-
:-
Figs. 1 and 2 are respectively an end elevation and a plan of part of a wire netting
machine with my improvements applied thereto.
Fig. 3 is a longitudinal vertical section of the same taken on the line Y Z
fig. 1.
Like letters in all the figures indicate like parts.
A indicates the pegged roller, A¹ the pegs secured therein and A³ the iron core or
axle thereof. A³ indicates a metal band or sheathing placed around the roller A so
that its periphery is flush with that of the said roller. B and B indicate respectively
a worm wheel and worm such as are usually employed for operating the roller A.
Cindicates the supporting pulleys or rollers the grooves C₁ (fig. 3) in which are of
sufficient depth to enable the pegs A¹ to pass through without contact with the said
pulleys, and on the supporting edges of the flanges of which rollers the metal band A³
rolls. D indicates the lever in bearings in one end of which the rollers C are carried
and D (fig. 1) indicates the fulcrum of the said lever which is supported in the bracket E¹
forming part of or secured to the framing E of the machine. Findicates the eye-bolt
the upper end of which is connected by the pin D to the lever D and the lower end of
which is screw-threaded as shown in figure I and has upon it two adjusting nuts F
one at the upper and the other at the lower side of the boss of the bracket E² which
is rigidly secured to or forms part of the machine framing E.
It will be seen from the foregoing description that when in operation the roller A is
supported and prevented from sagging by the rollers C without any interference with
the adjacent pegs A' which pass freely through the grooves C¹ and past the outer sides
of the said rollers. It is to be understood that instead of one set, two or more sets of
rollers C and means for supporting them may be applied at different parts of the
roller A the number of such sets so employed being proportioned to the length of the
roller which it is intended they shall support. The roller A on the accompanying
drawings is for convenience shown broken away and only one set of rollers is repre-
sented as applied. When it is desired to remove from the machine the roller A and
substitute for it say a roller of larger diameter, before inserting such larger roller the
nuts F are so manipulated, as is well understood, that the pulleys C are lowered and
after the said larger roller has been placed in the machine, by the lower of the said
nuts the lever D is moved so that the rollers bear against the periphery of the said
roller with the necessary degree of pressure, the upper of the nuts F1 serving after-
wards to lock the lever D and rollers C in the position into which they have been so
moved.
In that portion of the drawings which illustrates the mechanism by which I over-
come the beforementioned difficulty hitherto attendant upon the operations of the
"plates" G indicates the said "plates" which in the ordinary manner are supported
in guides enabling them to slide longitudinally and G¹ indicates the anti-friction
rollers carried in the brackets G' formed on the plates G. H indicates the cams mounted
on the shaft H which is carried by the frame E in any convenient manner. I indicates
the links which as shown clearly in figure 2 are each connected at one end by a pin G³
to one of the "plates" and at its other end by a pin J¹ to the lever J which is pivotted
at J2 to the projecting bracket E2 of the framing E.
It will be seen that when the machine is operated the cams H moving in the
direction indicated by the arrow in fig. 3 will alternately press on or against the two
rollers G¹ in a downward and forward direction and that the "plates" will not
therefore be lifted in the manner hitherto experienced, further than this by the
coupling together of the "plates".G by the links I and lever J when one.plate is moved

page_text: in one direction by one cam the other plate is simultaneously moved in the opposite
direction.
The foregoing description and illustration are given as an example of one method of
carrying my invention into practice.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1. In a wire netting machine the combination with the pegged roller A of supporting
rollers such as C substantially as and for the purpose herein described and illustrated
in the accompanying drawings.
2. As a means of supporting the rollers C in a wire netting machine the
combination with said rollers of a pivotted lever such as D eye-bolt F and nuts F¹
substantially as and for the purpose described and illustrated in the accompanying
drawings.
3. In a wire netting machine the arrangement of the cams H whereby in their
rotation they press against the rollers G¹ in a downward and forward direction sub-
stantially as and for the purpose herein described and illustrated in the accompanying
drawings.
4. In a wire netting machine the combination with the "plates" G of mechanism
such as the lever J and links I whereby when one plate is moved in one direction
movement in an opposite direction is imparted to the other "plate" substantially as
herein described.
5. In a wire netting machine the general arrangement and combination of parts
constituting the mechanism substantially as herein described and illustrated in the
accompanying drawings.