CERTAIN IMPROVEMENTS IN MACHINES FOR MANUFACTURING FISHING AND OTHER NETS
Year: 1870

page_text: LETTERS PATENT to Henry Bernoulli Barlow, of Manchester, in the
County of Lancaster, Patent Agent, for the Invention of "CERTAIN
IMPROVEMENTS IN MACHINES FOR MANUFACTURING FISHING AND OTHER NETS."
-A communication from abroad by Messieurs Coevoet and Dawson,
of Paris, in the Empire of France, Merchants.
Sealed the 28th June 1870, and dated the 4th January 1870.
PROVISIONAL SPECIFICATION left by the said Henry Bernoulli Barlow
at the Office of the Commissioners of Patents, with his Petition, on
the 4th January 1870.
I, HENRY BERNOULLI BARLOW, of Manchester, in the County of
Lancaster, Patent Agent, do hereby declare the nature of the said
Invention for "CERTAIN IMPROVEMENTS IN MACHINES FOR MANUFACTURING
FISHING AND OTHER, NETS," a communication to me from abroad by
Messieurs Coevoet and Dawson, of Paris, in the Empire of France,
Merchants, to be as follows:-
The Invention consists of an improved arrangement of parts forming a
machine for making nets.
f

page_text: In performing this Invention the warp is wound as usual on a beam,
and passes over several rollers before it meets the shuttles, which are
provided with circular bobbins; these shuttles are provided with
segmental racks on their lower edges which gear into and receive a to-
and-fro motion from two pinions mounted on separate axles. A series of
rotating hooks, one for each warp thread, are used for catching hold of
and twisting the warp threads, when another series of hooks with lateral
and up and down motions catch into the warp and raise it, thus forming
loops, through each of which a shuttle passes and leaves the weft in the
loops formed by the double series of hooks above mentioned. Horizontal
and vertical combs and a row of plungers are used for assisting the
operations of the shuttles and rotating hooks. Motion is given to the
various hooks and combs by levers and cams or other equivalents. By
altering the number of the shuttles and the arrangement of the other
parts nets of various sized meshes may be produced.
.
-
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Bernoulli Barlow in the Great Seal Patent
Office on the 2nd July 1870:
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
BERNOULLI BARLOW, of Manchester, in the County of Lancaster, Patent
Agent, send greeting..
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of January, in. the year
of our Lord One thousand eight hundred and seventy, in the thirty-
third year of Her reign, did, for Herself, Her heirs, and successors,
give and grant unto me, the said Henry Bernoulli Barlow, Her special
license that I, the said Henry Bernoulli Barlow, my executors, adminis-
trators, and assigns, or such others as I, the said Henry Bernoulli Barlow,
my executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "CERTAIN IM-
PROVEMENTS IN MACHINES FOR MANUFACTURING FISHING AND, OTHER NETS,” a

page_text: communication to me from abroad by Messieurs Coevoet and Dawson, of
Paris, in the Empire of France, Merchants, upon the condition (amongst
others) that I, the said Henry Bernoulli Barlow, my executors or
administrators, by an instrument in writing under my, or their, or one
of their hands. and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and immediately after the date of the
said Letters Patent.
1
NOW KNOW YE, that I, the said Henry Bernoulli Barlow, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement (that is to say)
The Invention consists of an improved arrangement of parts forming á
machine for making nets.
In performing this Invention the warp is wound as usual on a beam,
and passes over several rollers before it meets the shuttles, which are
provided with circular bobbins; these shuttles are provided with
segmental racks on their lower edges which gear into and receive a to-
and-fro motion from two pinions mounted on separate axles. A series of
rotating hooks, one for each warp thread, are used for catching hold of
and twisting the warp threads, when another series of hooks with lateral
and up and down motions catch into the warp and raise it, thus forming
loops, through each of which a shuttle passes and leaves the weft in the
loops formed by the double series of hooks above mentioned. Horizontal
and vertical combs and a row of plungers are used for assisting the
operations of the shuttles and the rotating hooks. Motion is given to
the various hooks and combs by levers and cams or other equivalents.
By altering the number of the shuttles and the arrangement of the other
parts nets of various sized meshes may be produced.
And in order that this Invention may be fully understood and readily
carried into operation I will proceed to describe the accompanying
Sheet of Drawings, reference being had to the figures and letters marked
thereon.
Fig. 1. is a vertical section of the improved machinery for manufacturing
fishing and other nets; Fig. 2 is a front view of one of the shuttles; and
Fig. 3 is a section through two shuttles; Figs. 4 to 10 are diagrams

page_text: the meshes.
.
The principal parts of the machine are the shuttles N, the rotating
hooks C, and the plungers P. These parts act in the following manner :-
The shuttle shewn in Figs. 2 and 3 is composed of two parts, namely,
first the bobbin n made of two discs united by a boss on which the thread
or string forming the weft is wound; and, secondly, the frame of the
shuttle N made of iron, and cut out to receive the bobbin n. The lower
part of the shuttle is made with a segmental rack N¹ which gears into
the pinions N2 and N³, see Fig. 1, keyed on the shafts 6, 6', which are
turned round when the shuttle passes through the mesh that is being
formed. The recess x in the shuttle frame is made, to hold the spring y,
which exerts a constant and uniform pressure on the discs of the
bobbin n to keep the thread at a uniform tension; the stud shewn in dots
in Fig. 2 prevents the shuttle from moving laterally. To the frame of
the shuttle are rivetted the two thin plates n', n², which guide the
bobbin n, and which prevent the warp thread, indicated by a blue line X,
from rubbing against or being caught by the teeth of the segmental
rack. The shuttles are placed in a comb Z, W, made of a blade of iron,
with indentations in which the shuttles are at liberty to move freely to
and fro when the shafts b, b', supporting the pinions N2 and N³ are put
in motion. The shafts b, b', are turned round simultaneously by the
toothed segment B, shewn in dotted lines in Fig. 1, placed outside the
framing, and this segment is actuated by a cam acting on a bowl
projecting from the link B¹. The first operation towards forming the
loop or mesh is performed by the horizontal hook C, to which a rotary
motion is given, and which in future is called the rotating hook; the
rotary motion is given simultaneously to all the hooks by means of the
bar C¹ which acts on the cranked end c of each hook. Each horizontal
rotating hook is furnished with a vertical hook or plunger P; these
plungers are moved from right to left, also backwards and forwards, and
up and down. The right and left motion, that is to say, lengthwise of
the machine, is imparted by parts situated within the end frames O of
the machine actuating the bar P¹, the backward and forward motion is
imparted by the lever P2, and the up-and-down motion is produced by a
cam on the cam shaft K which acts on the lever P³ oscillating on the
stud p. In addition to the parts above described for making the loops I

page_text: employ the horizontal comb D and the vertical comb E. The first of
these combs assists the shuttles in passing through the loops of the
warp X, and the second comb prevents the said loops falling below the
first comb. The plungers I which serve to open the meshes to allow the
shuttles to pass are fixed to the bar I', which is actuated by the
levers I²,
I³.
.
The mode of operation is as follows:-In Fig. 4 the warp X is in front
of the rotating hook C. In Fig. 5 the warp X is brought towards the
hook C and falls to its right side, at the same time the hook is turned
one-fourth round, thus partially twisting the warp. In Fig. 6 the hook C
completes its rotation, that is to say, it turns three-quarters round and
brings the warp X into the position shewn. The plunger P, see Fig. 7,
now descends below the rotating hook C and advances to take off the
warp X. I wish to remark here that the plunger P in addition to the
vertical has also a motion from right to left as it slides on guides fixed to
the end frames, as shewn in Fig. 8, which represents the position of the
warp when it has been moved from right to left to allow the thread or
string Y from the shuttle to pass, this thread or string Y is shewn in
red; and lastly, the warp X regains its first position, as shewn in Fig. 9,
in order that the thread or string Y in passing towards the back of
the machine may be twisted, and thus assume the position shewn in
Fig. 10. The object of the horizontal comb D is only to take the place
of the plunger P to open the loops shewn in Figs. 9 and 10. The warp
threads X travel in the direction indicated by the arrows in Fig. 1, and
they are guided by the rollers r, rª¹, №², s and §¹, and the net as it is being
manufactured passes between the top rollers R.
It is evident that these improved machines are provided with .appa-
ratus to keep the warp threads at a proper tension and with a regulator
to govern the taking up according to the peculiar net that is being
produced. The driving shaft G gives motion to the cam shaft K by
bevel gearing and a diagonal shaft, as shewn in red in Fig. 1, the
diagonal shaft also drives some of the other parts of the machine.
Having thus stated the nature of the Invention communicated to me
by the within-named Messieurs Coevoet and Dawson, and described the
manner of performing the same, I wish it to be understood that I do not
limit myself to the details given, as the same may be modified to suit
the particular class of nets to be manufactured, and I claim the general

page_text: combination and arrangement of the parts forming the improved machine
for manufacturing fishing and other nets, and particularly the shuttles N,
..the rotating hooks C, and the plungers P.
t.
In witness, whereof, I, the said Henry Bernoulli Barlow, have hereto
set my hand and seal, this First day of July One thousand eight 5
hundred and seventy.