IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1878

page_text: LETTERS PATENT to Algernon Freeman Firth, Carpet Manufacturer, and John,
Boothman, Loom Tuner, both of Clifton Mills, near Brighouse, in the County
of York, for the Invention of "IMPROVEMENTS IN LOOMS FOR WEAVING."
Sealed the 14th March 1879, and dated the 20th September 1878.
PROVISIONAL SPECIFICATION left by the said Algernon Freeman Firth
and John Boothman at the Office of the Commissioners of Patents on the
20th September 1878.
ALGERNON FREEMAN FIRTH, Carpet Manufacturer, and JOHN BOOTHMAN, Loom
Tuner, both of Clifton Mills, near Brighouse, in the County of York. IMPROVE-
MENTS IN LOOMS FOR WEAVING."
This Invention relates to looms mainly designed for the weaving of carpets, but
the first part of the Invention, an improved letting-off motion, is applicable to
looms generally.
The second part of the Invention relates to improved guide for the slides of
the "wire motion." In constructing letting-off motions according to this our
Invention we utilize the motion of the vibrating back bearer by means of a finger
engaging with a slotted connecting rod and fulcrum lever to operate a friction band
or strap embracing a friction pulley on the axis of the warp beam so as to relieve
the pulley when the warp is to be given off, and to grip and tightly hold the same
when the required quantity of yarn has been delivered.
The boss of the friction pulley is perforated, so as by lever to afford ready facility
for hand "taking up" after having "let back" the warp for any purpose.
For directing the course of the wire slide and jaws we employ a curved bar along
which the slide works, the bar being so formed as to guide and direct the wire
slides as required.

page_text: This Invention relates to looms mainly designed for the weaving of carpets, but
the first part of the Invention, an improved "letting-off motion," is applicable to
looms generally.
The second part of the Invention relates to improved guide for the slides of the
"wire motion."
In constructing "letting-off" motions according to this our Invention we utilize
the motion of the vibrating back bearer by means of a finger engaging with a slotted
connecting rod and fulcrum lever to operate a friction band or strap embracing a
friction pulley on the axis of the warp beam, so as to relieve the pulley when the
warp is to be given off, and to grip and tightly hold the same when the required
quantity of yarn has been delivered.
The boss of the friction pulley is perforated, so as by lever to afford ready facility
for hand "taking up" after having "let back" the warp for any purpose.
For directing the course of the "wire" slide and jaws we employ a curved bar
along which the slide works, the bar being so formed or of such curvature as to
guide and direct the "wire" slides as required.
Such being the nature and object of this our said Invention, we will now proceed
to describe the manner in which the same is to be or may be performed or carried
into practical effect; and in order that the same may be fully understood have
hereunto annexed a Sheet of Drawings illustrative thereof, in which Fig. 1 is an
end elevation of loom showing our improvements applied. Fig. 2, an elevation of
back of the loom; Figs. 3 and 4, front elevations and plan of "wire motion."
In constructing letting-off motions according to this our Invention we utilize the
motion of the vibrating back bearer A by means of a finger B engaging with a
slotted adjustable connecting rod C and fulcrum lever E to operate a friction band
or strap F embracing a friction pulley G in the axis of the warp beam H, so as to
relieve the pulley when the warp is to be given off, and to grip and tightly hold
the same when the required quantity of yarn has been delivered.
The boss of the friction pulley is perforated, as at J, J, so as by lever to afford
ready facility for hand " taking up" after having "let back" the warp for any
purpose.
For directing the course of the wire slide M and jaws L we employ a curved
bar P along which the slide M works, the bar being so formed or of such curvature
as to guide and direct the wire slides as required.
Having thus fully described the nature and particulars of this our said Invention,
together with the manner in which the same is to be be or may be performed, we
would have it understood that we lay no claim to any of the parts referred to when
considered separately; but what we do claim is,—
Firstly. The combination and use of finger B, link C, lever E, and strap F,
operated and operating as and for the purpose described, and substantially as
illustrated,

page_text: Secondly. The combination and use of curved bar P, jaws L, and slide M, in
manner described, and as illustrated.
In witness whereof, we, the said Algernon Freeman Firth and John Boothman,
have hereunto set our hands and seals, this Fifteenth day of March, in the
year of our Lord One thousand eight hundred and seventy-nine.
Witness,
WILLIAM FINDLAY,
Lanehead,
Brighouse,
Yorks.
T
FIRID.
JOHN BOOTHMAN.
(L.S.)
(LS.)