CERTAIN IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1863

page_text: LETTERS PATENT to Henry Bernoulli Barlow, of the City of Manchester,
Patent Agent, for the Invention of "CERTAIN IMPROVEMENTS IN LOOMS
FOR WEAVING."-A communication from abroad by Messieurs Auguste
Vidal and Sons, and Messieurs Blaquière, Brothers, of Paris, in the
Empire of France.
Sealed the 20th May 1864, and dated the 26th November 1863.
PROVISIONAL SPECIFICATION left by the said Henry Bernoulli Barlow
at the Office of the Commissioners of Patents, with his Petition, on the
26th November 1863.
I, HENRY BERNOULLI BARLOW, of the City of Manchester, Patent Agent,
do hereby declare the nature of the said Invention for "CERTAIN IMPROVE-
MENTS IN LOOMS FOR WEAVING, a communication to me from abroad by
Messieurs Auguste Vidal and Sons, and Messieurs Blaquière, Brothers, of
Paris, in the Empire of France," to be as follows:-
This Invention relates to looms, in which drop boxes with any number of
compartments and jacquards are employed. The loom is worked by a side
shaft, on which are the usual fast and loose pulleys, and a pinion gearing into
a wheel on the shaft with tappets for working the batten; to this shaft is fixed
a crank for giving motion to a shaft at the top of the loom, to which segments
or pulleys are secured for working the jacquards and the drop boxes. The
position of these drop boxes is governed by the jacquard, and when the

page_text: descent of a drop box has to be stopped a sliding piece is brought into opera-
tion by a spring to retain it, and for bringing the required shuttle in line with
the shuttle race. The taking-up roller is worked by a lever and ratchet wheel
from the jacquard. The shuttles are picked from each side of the loom in
any required succession by outside picking levers acting on the picking sticks,
which have springs to bring them back to their original position. The outside
levers have slides, which are acted upon by the wipers, and these slides are
also acted upon by springs; or the outside picking lever is connected to the
picking stick by an intermediate lever; the picking sticks are connected by a
strong spring; this spring is put into a state of tension by the side levers
alternately; this latter arrangement is particularly applicable when water
power is employed.
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 25th May 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
BERNOULLI BARLOW, of the City of Manchester, Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-sixth day of November, in the year of our
Lord One thousand eight hundred and sixty-three, in the twenty-seventh 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, administrators, 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 IMPROVEMENTS IN LOOMS FOR WEAVING," being a com-
munication to me from abroad by Messieurs Auguste Vidal and Sons, and
Messieurs Blaquière, Brothers, of Paris, in the Empire of France, 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

page_text: within six calendar months next and immediately after the date of the said
Letters Patent.
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 Specification thereof, reference being had to the two accompanying
Sheets of Drawings, and to the figures and letters marked thereon :-
On Sheet 1, Figure 1, is an end elevation of a loom constructed according
to my improvements, and Figure 2 is a front view of the same; Figure 3 is
an end elevation of a modification of the Invention; Figure 4 is a transverse
section; and on Sheet 2, Figure 5 is a front view of the loom shewn in
Figure 4.
The side shaft a is driven by a fast and loose pulley, and to it is fixed a
bevel pinion a¹ gearing into the wheel b¹ fixed to the crank shaft b, to which is
fixed the outside crank 62, connected by means of the rod 6³ to the elbow
lever c, whose fulcrum is the stud c'. The elbow lever c is connected to the
levere by the rod d; the levers e and e¹ are fixed to the shaft f, extending
from one frame side to the other; near the centre of the shaft is fixed the
segment f, a strap from which is taken to the pulley of the jacquard. To
the levers e' are suspended straps or bands e connected to the drop boxes g.
When the shaft f is turned partly round the segment f¹ gives motion to the
jacquard, and the levers e¹ raise or lower the drop boxes g to bring the
required shuttle in line with the shuttle race of the batten g', which is con-
structed as usual. When two or more jacquards are employed a corresponding
number of segments f' are required. The batten g' is connected by the six
lay swords g to the cross shaft or swing rail g³, the batten is moved to and
fro by the cams & acting on bowls projecting from side bars h, as shewn by
dots in Figure 1; the shape of these cams may be varied. The drop boxes g
are shewn on an enlarged scale in Figures 6 and 7; each drop box is shewn
with three compartments, but the number may be increased in certain cases;
the drop box is guided up and down in the frame g, and it is raised and
lowered, as before described, by the strap or band e². When the drop box is
down, as shewn in Figure 6, the shuttle in the top compartment is in line
with the shuttle race. When the levers e' rise the drop box also rises, and in
order to hold it in the proper position for bringing the lowest and inter-
mediate compartments of the drop box in line with the shuttle race, there are
two traverse bars h' connecting the sides of the frame g; the number of
traverse bars h' is always one less than the number of compartments in the
drop box. Each bar h has a slide h² fitting on it; each slide h* has projec

page_text: tions corresponding to projections on the drop box g, as shewn in Figure 6;
to each slide h³ is attached the end of the spring h³, the other end being
connected to the frame g; the springs h³ are also connected by cords passing
over guide pulleys to the india-rubber or other suitable springs h*, which are
stronger than the springs h³; the cords from the jacquard are also connected
to the springs h*. When the jacquard card acts on the hook of one of the
drop boxes the spring his drawn up, the spring h³ is then at liberty to act
upon the slide h², which then holds the shuttle box; as soon as the spring h
is again liberated the slide h² is withdrawn, and the drop box g is at liberty to
be again raised or lowered according to the shuttle required. The cast-iron
piece i, see Figure 2, is fixed to the front of the batten near the drop boxes,
and holds the two rods for the pickers; the picking sticks ; pass between
these two rods. In order to check the momentum of the shuttle, each com-
partment of the shuttle box is provided with a spring placed between the end
of the box and a block, against which the end of the shuttle strikes; these
springs are also combined with the weft stop motion, by which the driving
strap is moved from the fast to the loose pulley when the weft breaks. The
warp beam delivers the warp to the cross beam m, from which it is taken
to the healds, and then over the breast beam n to the taking-up roller o,
made, by preference, of perforated sheet metal; the woven fabric is wound on
the roller p by the friction of the roller o, to the axle of, which is fixed the
wheel o', put in motion by the regulator actuated in the ordinary manner by
the jacquard. The picking motion, shewn in Figures 1 and 2, is adapted to
throw the shuttles from either side of the loom in any required succession.
The side levers 9 are jointed to the studs g', and the other extremity of each
lever rests upon the projection of the picking stick j, to which is attached
the end of the spring j". At the back of the side lever q is a spring acting
on the slide s placed under the crank b; an elbow lever r jointed to the
frame rests against one side of the slide s, and the other arm of the elbow
lever is acted upon by a cord and spring; when this is raised the elbow
lever r pushes the slides under the crank 6, which then gives motion to the
side lever q, to the picking stick j, and to the shuttle. As soon as the crank b
has passed beyond the slides the spring draws it back and replaces the side
lever in its original position.
I will now proceed to describe the modification of the picking motion shewn in
Figures 3, 4, and 5. The side levers 9 are placed above the crank shaft instead
of below, as shewn in Figure 1. A bowl on the lever q bears upon the cam b³ ;
the end of the side lever q is connected by a strap q with the lever j³ pro-
jecting from the picking lever j. The two picking sticks j at each side of the

page_text: loom are connected by the strong spring t, the picking sticks are held asunder
by catches connected to the batten. When the loom is at work the strap q³
charges the spring t at the moment that the bowl raises the side lever 9, but
as soon as the smallest diameter of the cam 6" comes under the bowl of the
side lever the strap becomes slack, the batten goes back, and the piece v
liberates the catch holding the picking lever j, which is then acted upon by
the spring t; the cam then raises the side lever q, and the piece v again
allows the picking sticks to be held asunder by the catches. When the batten
again comes forward the position of the drop boxes can be changed. As the
picking sticks only act from one side of the loom at a time the jacquard cards
can be so regulated as to govern the picks in any required succession from
each side of the loom. The picking motion last described is suitable when
water power, which is generally irregular, is employed.
Having thus described the nature and particulars of the Invention as com-
municated to me from abroad by Messieurs Auguste Vidal and Sons, and
Messieurs Blaquière, Brothers, I declare that I claim the various improvements
shewn and described for varying the position of the drop boxes in shuttle
Jooms, and for picking the shuttles in any required succession from both sides
of the loom.
In witness whereof, I, the said Henry Bernoulli Barlow, have hereunto
set my hand and seal, the Twenty-third day of May, One thousand
eight hundred and sixty-four.
H. B. BARLOW. (L.B.)