IMPROVEMENTS IN JACK AND SLUBBING FRAMES
Year: 1865

page_text: LETTERS PATENT to Ashworth Barlow, of Crawshaw Booth, near Rawten-
stall, in the County of Lancaster, for the Invention of "IMPROVEMENTS
IN JACK AND SLUBBING FRAMES."
Sealed the 4th July 1865, and dated the 9th January 1865.
PROVISIONAL SPECIFICATION left by the said Ashworth Barlow at the
Office of the Commissioners of Patents, with his Petition, on the 9th
January 1865.
I, ASHWORTH BARLOW, of Crawshaw Booth, near Rawtenstall, in the County
of Lancaster, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN JACK AND SLUBBING FRAMES," to be as follows:-
This Invention consists in an improved arrangement for regulating the
tension of the roving or slubbing thread without interfering with the copping
wheels, taper motions, or any other mechanism of the frame.
Behind the ordinary rack hitherto employed for holding the strap fork used
for shifting the strap on the taper drums for regulating the jack-in-the-box,
which communicates the motion to the shaft for turning the tubes or bobbins, I
place a slide, and connect to it the strap fork, leaving the ordinary rack with-
out the strap fork. The slide and rack move together as heretofore, but in
order to regulate the position of the strap fork on the drums with extreme
nicety I move the slide and strap fork to and fro by means of a screw and
nut or a worm and worm wheel, perfectly independent of the movements of

page_text: the rack, which changes when the lifters are at the top or at the bottom, the
slide being only moved, unless when required by the operative; and as tho
motion of screw or worm can be stopped at any part of its revolution, the strap
fork can be adjusted with great ease and correctness to suit the requirements
of the various staples of fibrous materials.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Ashworth Barlow in the Great Seal Patent Office on the
7th July 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ASHWORTH
BARLOW, of Crawshaw Booth, near Rawtenstall, in the County of Lancaster,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of January, in the year of our Lord
One thousand eight hundred and sixty-five, in the twenty-eighth year of
Her reign, did, for Herself, Hler heirs and successors, give and grant
unto me, the said Ashworth Barlow, Her special license that I, the said
Ashworth Barlow, my executors, administrators, and assigns, or such others
as I, the said Ashworth 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 "IMPROVEMENTS IN JACK AND SLUBBING FRAMES," upon the con-
dition (amongst others) that I, the said Ashworth Barlow, my executors
or administrators, by an instrument in writing under ny, 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.
NOW KNOW YE, that I, the said Ashworth Barlow, do hereby declare
the nature of my 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) :-
This Invention consists in an improved arrangement for regulating the
tension of the roving, intermediate, or slubbing thread without interfering

page_text: with the copping wheels, taper motions, or any other mechanism of the
frame.
The said arrangement will be clearly understood by the following description
thereof, reference being had to the front view, Fig. 1, and back view, Fig. 2,
drawn to a reduced scale on the accompanying Sheet of Drawings, and to the
letters of reference marked thereon.
In the ordinary rack bar a hitherto employed for holding the strap fork
used for shifting the strap on the taper drums for regulating the jack-in-the-
box, which communicates the motion to the shaft for turning the tubes or
bobbins, I place a slide b, and connect it to the strap fork c, leaving the
ordinary rack bar without the strap fork. The slide and rack bar move
together as heretofore, but in order to regulate the position of the strap on
the drums with extreme nicety, I move the slide and strap fork to and fro by
means of a screw and nut d, e, or a worm and worm wheel, perfectly indepen-
dent of the movements of the rack bar, which changes when the lifters are at
the top or at the bottom, the slide being only moved, unless when required by
the operative; and as the motion of the screw or worm can be stopped at any
part of its revolution, the strap fork can be adjusted with great ease and
correctness to suit the requirements of the various staples of fibrous materials.
Having now described the nature and particulars of my said Invention,
and the manner in which the same is to be performed, I desire it to be
understood that I claim in jack, intermediate, and slubbing frames, the attach-
ment of the strap fork c to the slide 6 working in the rack bar a, and the
modes of regulating the position of the strap fork by a screw and nut d, e, or
worm and worm wheel.
In witness whereof, I, the said Ashworth Barlow, have hereunto set my
hand and seal, this Fourth day of July, in the year of our Lord One
thousand eight hundred and sixty-five.
Signed, sealed, and delivered by
the within-named Ashworth
Barlow, in the presence of
E. J. HUGHES,
Patent Agent,
Manchester.
ASHWORTH BARLOW. (L.S.)