IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1883

page_text: LETTERS PATENT to John Williams Cotton Manufacturer and Henry Barnes
Overlooker both of Burnley in the County of Lancaster for an Invention of
IMPROVEMENTS IN LOOMS FOR WEAVING.
PROVISIONAL SPECIFICATION left by the said John Williams and Henry
Barnes at the Office of the Commissioners of Patents on the 19th February
1883.
JOHN WILLIAMS, Cotton Manufacturer and HENRY BARNES Overlooker both of
Burnley in the County of Lancaster. IMPROVEMENTS IN LOOMS FOR WEAVING.
Our Invention consists of an Improved means or apparatus Whereby lengths of
cloth having an heading and fringe at one or both ends thereof may be woven
continuously without the necessity of stopping the loom. For this purpose an
arrangement of levers or cams are provided which may be actuated from the taking
up motion so as to raise the catch out of contact with the pattern cylinder by which
means the pattern surface is at rest until the heading is required, when the said
catch is lowered into position so that a shuttle is presented with the requisite
filling or weft, another shuttle without filling is brought into position at the proper
time to produce the fringe, the weft motion being arrested and the speed of the
taking up motion increased for this purpose, It will be obvious that by this
arrangement the length of the pattern surface will be considerably reduced, which
may be further effected by reducing the motion actuating the catch of the pattern
cylinder this part of our invention is also applicable to the dobby or jacquard.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Williams and Henry Barnes in the Great Seal Patent
Office on the 18th August 1883.
JOHN WILLIAMS, Cotton Manufacturer and HENRY BARNES, Overlooker both of
Burnley in the County of Lancaster IMPROVEMENTS IN LOOMS FOR WEAVING
Our Invention consists of an improved means or apparatus, whereby lengths of
cloth having a heading and fringe at one or both ends thereof may be woven
continuously without the necessity of stopping the loom, for this purpose an
arrangement of levers and cams are provided which may be actuated from the taking
up motion so as to raise the catch out of contact with the pattern cylinder, by
which means the pattern surface is at rest until the heading is required, when the
said catch is lowered into position, so that a shuttle is presented with the requisite
filling, or weft, another shuttle without filling is brought into position at the
proper time to produce the fringe, the weft motion being arrested, and the speed
of the taking up motion increased for this purpose, By this arrangement the
length of the pattern surface will be considerably reduced, which may be further
effected by reducing the motion actuating the pattern cylinder. And in Order
that our invention may be fully understood and readily carried into effect we will
proceed to describe the accompanying sheet of drawings, reference being had to the
figures and letters marked thereon, Fig 1 is an end elevation, Fig 2 a front view,
Fig 3 an elevation reverse to Fig 1, and Fig 4 a plan of a loom to which our
improvements are applied, Figs 5. and 6 are enlarged views of cams or tappit levers
hereinafter referred to. In Fig 1, the indicating medium actuating the boxes A
are similar in construction and arrangement to other box changing mechanism
being provided with the catch B centered on and actuated by, the indicating
lever C, to which a rising and falling action is imparted by the lever D and
cam E, the rising action of the indicating lever C and catch B moving the pattern
cylinder to the extent of one tooth of the ratchet or pegged wheel F, the falling
action of the indicating lever C allows the catch B to take hold of, and engage
with another tooth of the ratchet wheel F, whereby the pattern cylinder is actuated
and the changing of the boxes determined.
In carrying out our improvements a slow suitable movement is imparted to the
cross shaft G and the cam or tappit levers H. I. and J (seen in Figs 1 and 2)
whereby only one revolution thereof is completed for each determined length of
cloth or piece, and at a comparatively distant interval, this may be effected through
the medium of the vertical shaft K, and bevel gear L and M from the taking up
motion or by other mechanical equivalent, so that a suitable movement is imparted
to the cross shaft G, The catch B actuating the pattern cylinder herein before
mentioned is regulated and determined by the shape or configuration of the cam
or tappit lever H (seen in Figs 1 and 5) which is so arranged and placed on the
cross shaft G that the full part thereof will act upon the lever G₁ whilst the main
or greater portion of the determined length of cloth or piece is produced, the lever G
thus acted upon raises the rod N, against the upper end of which the catch B strikes
in its falling action and is thereby prevented from engaging with the teeth or pegs
of the ratchet wheel F, at which time the pattern surface is inoperative and at
rest. The recess or opening in the tappet lever H acts upon the lever G¹ (imme-
diately before the headings are required) whereby the catch B is liberated and the
pattern surface again actuated It will be obvious that by this arrangement the
length of the pattern surface is considerably reduced, which may be further effected
(as seen in Fig 1) by providing the ratchet wheel F with double the number of

page_text: teeth or pegs, to the sides or flats of the pattern cylinder. We will now describe
the respective functions of the cam or tappit levers I and J, and their order of
motion when placed on the cross shaft G the cam or tappit lever I acts upon the
lever O, (immediately before the commencement of the fringe) which being united
and connected by wire attachment to the lever O' and O' arrests the motion of the
weft fork P, by which means, a shuttle without filling or weft may be selected and
presented to produce the fringe, at which time the cam or tappit lever J (seen in
Figs 1. 2 and 6) acting upon the beam R lowers the rod S and catch T (seen in
Figs 2 and 3) whereby the latter is capable of engageing with the teeth of the
ratchet wheel U of our additional taking up mechanism which is provided to
increase the speed in winding or rolling up the cloth, when acted upon in the
manner described by the cam or tappit lever J.
Having now described the nature of our said Improvements and the manner of
performing the same we declare that what we claim as the invention to be protected
by the hereinbefore in part recited Letters Patent is
The Invention substantially as herein set forth and illustrated in the accompanying
Sheet of Drawings.
In Witness whereof I the said John Williams on behalf of myself and the said
Henry Barnes have hereunto set my band and seal this sixteenth day of August
in the year of our Lord One thousand eight hundred and eighty three.
HOUN WITT TAXO
Witness
THOMAS RICHMOND
Burnley.
TOUNI