CERTAIN IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1868

page_text: LETTERS PATENT to Josiah Greenwood, of Lineholm, near Todmorden,
in the County of Lancaster, Manager of a Cotton Mill, for the
Invention of "CERTAIN IMPROVEMENTS IN LOOMS FOR WEAVING."
PROVISIONAL SPECIFICATION left by the said Josiah Greenwood at
the Office of the Commissioners of Patents, with his Petition, on the
31st August 1868.
I, JOSIAH GREENWOOD, of Lineholm, near Todmorden, in the County
5 of Lancaster, Manager of a Cotton Mill, do hereby declare the nature of
the said Invention for "CERTAIN IMPROVEMENTS IN LOOMS FOR WEAVING," to
be as follows:-
My Invention relates to that part of looms for weaving termed the
"check strap," which is employed for easing the concussion of the.
shuttle when entering the shuttle box and preventing its rebound.
The improvements consist in using short pieces of leather strapping,
such as "scrap" leather, the ends of which are constructed so as to
embrace and encircle the length of cach shuttle box spindle so as to
enclose the "picker;" the intermediate portion of such strapping between

page_text: the ends of each spindle is caused to pass through the slots in an upright
lever, the lower portion of which is supported on a stud passing through
a recess formed in the "slay" underneath the shuttle box, a pressure
being exerted upon the boss of the lever outward from the box, which
necessarily gives a tension to the strap on the spindle embracing the
race of the picker, thus when the shuttle enters the box the picker is
impelled forward against the strap on the spindle, the tension of which
deadens the concussion and prevents any rebound.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Josiah Greenwood in the Great Seal Patent Office
on the 26th February 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSIAHI
GREENWOOD, of Lineholme, near Todmorden, in the County of Lancaster,
Manager of a Cotton Mill, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirty-first day of August, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Josiah Greenwood, Her special license
that I, the said Josiah Greenwood, my executors, administrators, and
assigns, or such others as I, the said Josiah Greenwood, my exe-
cutors, 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 IMPROVE-
MENTS IN LOOMS FOR WEAVING," upon the condition (amongst others) that
I, the said Josiah Greenwood, 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 Inven-
tion, 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.

page_text: NOW KNOW YE, that I, the said Josiah Greenwood, 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 statement and accompanying Drawings (that is to
say):-
My Invention relates to that part of looms for weaving termed the
"check strap," which is employed for easing the concussion of the
shuttle when entering the shuttle box and preventing its rebound.
The improvements consist in using short pieces of leather strapping,
such as " scrap "leather, the ends of which are constructed so as to
embrace and encircle the length of each shuttle box spindle so as to
cnclose the "picker;" the intermediate portion of such strapping between
the ends of each spindle is caused to pass through two slots in an upright
lever, the lower portion of which is supported on a stud passing through
a recess formed in the "slay" underneath the shuttle box, a pressure
being exerted upon the boss of the lever outward from the box by means
of a spring, which necessarily gives a tension to the strap on the spindle
embracing the race of the picker, thus when the shuttle enters the box
the picker is impelled forward against the strap on the spindle, the
tension of which deadens the concussion and prevents any rebound of
the shuttle and picker.
Such being the nature and object of my said Invention for "Certain
Improvements in Looms for Weaving," I will now proceed to describe
more in detail the manner in which the same is to be or may be carried
into practical effect, and in order that the same may be clearly under-
stood I have annexed hereunto a Sheet of Drawings illustrative thereof,
and have marked the same with figures and letters of reference
corresponding with those in the following explanation thereof.
In the annexed Drawing, Fig. 1 represents an end view, and Fig. 2 a
front view of the shuttle box of a loom with my improvements shown
as applied thereto; Fig. 3 is a plan view of the same; and Fig. 4 a
vertical section through the shuttle box.
a, a, is the shuttle box; b, b, the picker; and c, c, the picker spindle;
d, d, is the check strap, which is made of four short pieces of leather,
the inner ends of the two central pieces passing through two slots in a
vertical lever e, e, the lower end of which works on a stud or screw fixed
in the slay or lower part of the shuttle box, a coiled spring ff, embracing
the said stud and exerting a frictional pressure against the boss of the

page_text: lever e, e.
It will be seen that the upper part of this lever forms, as it
were, a buckle, the pin g acting as a tongue, and hence the length of the
check strap can be adjusted as required.
By the above described arrangement of check strap a very great
economy is effected, as small pieces of scrap leather can be used, and
the necessity for a long leather strap passing from one shuttle box to the
other is entirely obviated.
Having now described the nature and object of my said Invention,
together with the manner in which the same is to be or may be per-
formed or carried into practical effect, I wish it to be understood that I
claim as my Invention, the construction of check straps for looms of
short pieces of leather in connection with a slotted lever, substantially
as shown in the annexed Drawing and herein-before more particularly
described:
In witness whereof, I, the said Josiah Greenwood, have hereunto
set
my hand and seal, this Twenty-fourth day of February, in
the year of our Lord One thousand eight hundred and sixty-nine.
JOSIAH GREENWOOD. (L.S.)