APPARATUS FOR MANUFACTURING BARBED FENCE WIRE
Year: 1885

page_text: I, OCTAVIUS WARRE MALET of 4 Courtfield Gardens Kensington in the County
of Middlesex, Gentleman do hereby declare the nature of my invention for
"APPARATUS FOR MANUFACTURING BARBED FENCE WIRE" to be as follows:-
This invention relates to apparatus for manufacturing barbed fence wire by
fixing on the wire at suitable distances apart pieces of sheet metal cut to triangular,
diamond or star shapes, so as to present several sharp points projecting from the
wire. For this purpose a sufficient number of the cut barb pieces are strung on the
wire which is passed through holes punched through the barb pieces, and the wire
having the pieces strung on it nearly close together is placed in a machine where
it is passed round a drum that is moved by pawl and ratchet or otherwise so as to
have an intermittent motion, each movement being such as to draw the wire
onwards a distanco equivalent to the desired interval between the successive barbs.
Before starting the machine the barbs which are strung on the wire are arranged
in such a manner that the foremost one is released at each successive advance of
the wire, the rest of the barbs being held back. The barb so released is drawn
forward by the advance of the wire past a pair of open pressing jaws and up to an
adjacent pair. While the wire rests with the barb in this position, the pressing
jaws are closed so as to squeeze the wire on each side of the barb and consequently
to bulge it so that the barb cannot shift on it. The jaws then opening, the wire is
advanced bringing forwards another barb to be fixed in like manner.
As it is desirable that the barbs should not all lie in one and the same attitude
on the wire, moveable sloping guides may be introduced in front of the pressing
jaws, so that some of the barbs as they travel towards the jaws are canted more or
less round on the wire.
In order to obtain sharpness at the points of the barbs and yet maintain
sufficient strength at their centres, they may be punched or cut from hoop rolled
thicker at the middle than at the edges.
1
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.

page_text: I, OCTAVIUS WARRE MALET 4 Courtfield Gardens, Kensington, Middlesex,
Gentleman 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 apparatus for manufacturing barbed fence wire by
fixing on the wire at suitable distances apart pieces of sheet metal cut to triangular,
diamond or star shapes, so as to present several sharp points projecting from the
wire. For this purpose a sufficient number of the cut barb pieces are strung on the
wire which is passed through holes punched through the barb pieces, and the wire
having the pieces strung on it nearly close together is placed in a machine where
it is passed round a drum that is moved by pawl and ratchet or otherwise so as to
have an intermittent motion, each movement being such as to draw the wire
onwards a distance equivalent to the desired interval between the successive barbs.
Before starting the machine the barbs which are strung on the wire are arranged
in such a manner that the foremost one is released at each successive advance of
the wire, the rest of the barbs being held back. The barb so released is drawn
forward by the advance of the wire past a pair of open pressing jaws and up to an
adjacent pair. While the wire rests with the barb in this position, the pressing
jaws are closed so as to squeeze the wire on each side of the barb and consequently
to bulge it so that the barb cannot shift on it. The jaws then opening, the wire is
advanced bringing forwards another barb to be fixed in like manner.
In order to obtain sharpness at the points of the barbs and yet maintain
sufficient strength at their centres, they may be punched or cut from hoop rolled
thicker at the middle than at the edges.
Fig. 1 of the accompanying drawings is a side view, Fig. 2 is a transverse
section and Fig. 3 is a plan of a machine according to this invention. The other
figures shew details, as will hereafter be explained. In bearings on a frame or bed A
are mounted the driving shaft B and the winding shaft C which receives from B
an intermittent motion by means of the crank b pawl b¹ and ratchet wheel 6*, this
wheel being engaged by a loaded pawl ³ to prevent it from moving backwards.
The shaft C is tubular as shewn in the enlarged section Fig. 4, and within it is a
screw spindle c which is squared at the end and fixed in the framing by a nut as
shewn at Fig. 5, so that it cannot revolve. On the screw e within the tubular
shaft C is fitted an annular nut c¹ which is connected by a setting screw c³ to the
annular boss d of the winding drum D. The screw c² passes through a slot of the
shaft C. As the shaft C revolves carrying round with it the drum D its boss and
the annular nut c¹, while the internal screw c remains stationary, the drum Dis
made to advance along the shaft, and thus the drum D winds helically on it the
barbed wire W. This wire W which extends backwards within a guide channel E
as shewn in transverse section at Fig. 7, has strung on it a number of barbs F
consisting of thin plates preferably of triangular form as shewn in Fig. 6.
A number of these barbs are in the first place strung upon the wire W and drawn
along the channel E up against stops G of which there may be several at intervals
along the channel, each stop G consisting of a lever with a plate g projecting down
from it, this plate being slotted to allow the wire to move onwards while it serves

page_text: to arrest the barbs behind it. At any time, by lifting the lever of the stop G, the
barbs can be permitted to pass onwards with the wire. At the front end of the
channel E there is a stop plate H shewn in front view to 'an enlarged scale at
Fig. 6, this plate presenting a triangular hole sufficiently large to permit passage of
the barbs through it, but in such an attitude relatively to that in which the barb
is conducted along the channel E that the barb cannot pass through the hole in H
unless it is first turned partly round to an attitude corresponding with the hole.
In order to turn the barbs one at a time, there is mounted immediately behind the
plate H and sunk into a recess thereof a wheel K having short pegs or studs
projecting from it, these pegs being just long enough to catch and turn the one
barb that is close behind. H but no more. The wheel K is on a spindle that -
receives an intermittent movement of rotation by ratchet and pawl k and con-
nections worked from an eccentric I on the main shaft B. On the same
shaft B there is. a face cam M which acts on the end of a lever N pivotted at n
and loaded by a weight n¹. This lever has on it a pair of jaws P P facing a pair
of jaws P¹ Pl, as shewn in plan at Fig. 2. When the lever N is forced inwards by
the protuberance of the cam M the jaws P P¹ clamp between them the portions of
wire W on each side of a barb F so deforming those parts that the barb F is held
between them incapable of shifting its position. In order to admit the barb
between the jaws P and P¹ and allow it to issue from between them, the lever N
and a vertical slide to which it is pivotted are raised and lowered by an
eccentric or cam R.
.
As the shaft B revolves the drum D makes a partial revolution drawing onwards
a length of wire equivalent to the interval between successive barbs; the wire in
advancing carries through the hole in H the last of the barbs F behind H which
had previously been set right for passing through H by the action of one of the
pegs on K; the barb F is advanced along with the wire to the place where it
comes between the jaws P & P₁, and then these jaws rise and close upon the
wire W pinching it and deforming it on each side of F. The jaws then open and
descend, the wire with the barb fixed on it is drawn onwards and a succeeding
barb is in like manner acted on.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. The construction, substantially as herein described with reference to the
accompanying drawings of apparatus for manufacturing barbed fence wire of the
kind in which each barb consists of a plate presenting points threaded on the wire
and fixed in position thereon.
2. The combination of the guide channel E for the barbs, the plate H with a
hole for the barb through it and the intermittently moving pegged wheel K
whereby one barb at a time is turned so as to pass through the hole in H, substan-
tially as herein described.
3. The combination of the cam M the lever N slide Q and the pinching
jaws P P for deforming the wire on each side of a barb, substantially as herein
described.