CERTAIN IMPROVEMENTS IN POWER LOOMS FOR WEAVING
Year: 1853

page_text: LETTERS PATENT to James Barlow, of Bolton-le-Moors, in the
County of Lancaster, Manufacturer, and Thomas Settle, of the
same place, Manager, for the Invention of "CERTAIN IMPROVEMENTS
IN POWER LOOMS FOR WEAVING."
Sealed the 28th April 1854, and dated the 5th November 1853.
PROVISIONAL SPECIFICATION left by the said James Barlow
and Thomas Settle at the Office of the Commissioners of Patents,
with their Petition, on the 5th November 1853.
We, JAMES BARLOW, of Bolton-le-Moors, in the County of Lancaster,
Manufacturer, and THOMAS SETTLE, of the same place, Manager, do
hereby declare the nature of the said Invention for "CERTAIN IMPROVE-
MENTS IN POWER LOOMS FOR WEAVING" to be as follows:-
This Invention relates to power looms, and consists in a novel and
peculiar method of effecting what is called the "lathe motion" for
beating up the cloth as it is woven.
This motion has hitherto generally been accomplished by means
of cranks actuated by the first motion or crank shaft of the power
loom. Now our improvements consist in the substitution of a peculiar

page_text: 24
tappet wheel or cam wheel to effect the same object, but in a much
more desireable manner. This cam wheel (or pair of cam wheels, one
at each end of the shaft) is grooved, and actuates the ordinary vibrating
lathe or slay by means of a connecting link attached at one end to the
vibrating slay, and having a pin or small bowl at the other end running
in and actuated by the peculiarly formed groove in the cam wheel.
The groove or-race of the cam is so formed by its action on the slay
to effect a swell in the open shed" for the more perfect passage of
the shuttle across the warp threads, the effect of such motion being
that the shuttle enters the "shed" and travels completely across the
slay beam whilst the slay is at rest; by this means a better "shed"
is obtained, and at the same time we are enabled to make the chase of
the slay beam much shorter than that which is at present required
by the present crank motion, and we are also enabled to use a strap
or straps at the shuttle end of the "picking rods" instead of the strings
at present employed, which will ensure a more- perfect and effectual
motion of the shuttle: What we desire to claim is, the novel and
variable motion given to the ordinary vibrating slay in power looms,
as above described, for the purpose of effecting a passage of the shuttle
whilst the slay is at rest, whether imparted by the agency of grooved
cams or by other mechanical equivalents; and whether driven by the
first motion (or what is now, the crankshaft) or other suitable moving
part of the power loom..
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Barlow and Thomas Settle, in the Great
Seal Patent Office on the 4th May 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we,
JAMES BARLOW, of Bolton-le-Moors, in the County of Lancaster,
Manufacturer, and THOMAS SETTLE, of the same place, Manager, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, béaring date the Fifth day of November, in the year of
our Lord One thousand eight hundred and fifty-three, and in the seven-

page_text: teenth year of Her reign, did, for Herself. Her heirs and, successors,
give and grant unto us, the said James Barlow and Thomas Settle,
Her especial license that we, the said James Barlow and Thomas
Settle, our executors, administrators, and assigns, or such others as we,
the said James Barlow and Thomas Settle, our executors, adminis-.
trators, and assigns, should at any tinie 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 POWER LOOMS FOR WEAVING," upon the condition (amongst others)
that we, the said James Barlow and Thomas Settle, or one of us, by
an instrument in writing under our hands and seals, or under the hand
and seal of one of us, 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.
NOW KNOW YE, that I, the said Thomas Settle, do hereby declare
the nature of our said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement and accompanying Drawings (that is to say):
Our Invention relates to power, looms, and consists in a novel and
peculiar method of effecting what is called the "lathe motion" for.
beating up the cloth as it is woven: This motion has hitherto generally-
been accomplished by means of cranks-actuated by the first motion or
crank shaft of the power loom. Now our improvement consists in the
substitution of a peculiar tappet wheel or cam wheel to effect the same
object, but in a mucli more desirable manner. This cam-wheel. (or.
pair of cam wheels, one at each end of the shaft) is grooved, and:
actuates the ordinary vibrating lathe for slay by means of a connecting.
link or arm attached at one end to the vibrating slay, and having a.
pin' or small bowl at the other end-running in and actuated by the,
peculiarly formed groove in the cam-wheel. The groove or, race, of
the cam is-so formed as by its action on the slay to effect a dwell; in

page_text: the open "shed" for the more perfect passage of the shuttle across the
warp threads, "the effect of such motion being that the shuttle enters
the shed and travels completely across the slay beam whilst the slay is
at rest; by this means a better "shed". is obtained, and at the samé
time we are enabled to make the chase of the slay beam much shorter.
than that which is at présent required by the usual crank motion, and.
we are also.enabled to use a strap or straps at the shuttle end of the
picking rods, instead, of the strings at present employed,' which will
ensure a more perfect and effectual motion of the shuttle.
But in order that our Invention may be more readily explained in
detail we have attached to these presents a Sheet of Drawings, made
upon a scale of about two inches to a foot, having corresponding letters.
of reference marked upon similar parts of the machinery through-
out. In the accompanying Drawings Fig. 1 represents in elevation our
Invention applied as a cam a, in the position' shewn; 'the slay for the
moment is at rest, but as the cam revolves upon the axis of the driving
shaft the bowl or wheel b, (shewn by a dotted line in Fig. 1, and more
distinctly Fig. 2,) is caused to traverse the groove or channel of the
cam, and so actuates or imparts the vibratory motion to the slay beam,
and at the termination of each revolution of the cam a moimentary rest
is obtained, which rest or dwell may be prolonged or shortened as may
be desired by a proportionate contraction or enlargement of the small
radius of the cam wheel. Fig. 2, likewise represents a longitudinal
elevation of our improved cam motion as adopted to the vibratory
movement of the slay; but as it has been found that the bowl or wheel
b is the immediate connecting link between the peculiarly formed
groove of the cam and the slay beam, a too impulsive motion in some
cases is gained, we have found it desirable to introduce an immediate
lever or connecting piece c, provided with two slots d, and e, thereby
allowing and gaining an easier play for the slay beam, as well as the
advantage of lessening or increasing the chase of the same by means
of the bowl being proportionately adjusted in the slot e. Fig. 3,
represents in longitudinal elevation a method by which our Invention
may be applied to looms at present at work with the crank action.
We introduce a connecting rod f between the sword bracket and the

page_text: crank, bearing such a relative proportion to the crank arm as to ensure
the greatest or whatever dwell may be capable of being given to the
slay beam. Fig. 4, is a sectional view of the cam wheel a, represented
in Fig. 1. b, is the bowl or runner; g, is the peculiarly formed groove
or chase of the cam wheel; h, the axis of the first motion; and i, the
sword arm or bracket.
Having thus particularly described our Invention, we wish it to be
particularly understood that we claim the novel and variable motion
given to the ordinary vibrating slay in power looms, as above described,
for the purpose of effecting the passage of the shuttle whilst the slay
is at rest, whether imparted by the agency of grooved cams or by
other mechanical equivalents, and whether driven by the first motion,
or what is now the crank shaft, or other suitable moving part of the
power loom.
In witness whereof, I, the said Thomas Settle, have hereunto set
my hand and seal, this Second day of May, in the year of our
Lord One thousand eight hundred and fifty-four.
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S
CICE TO CUTOUT
NOHL