IMPROVE- MENGS IN LOOMS FOR WEAVING وو
Year: 1873

page_text: LETTERS PATENT to Richard Tomlinson, of Walton-le-Dale, in the
County of Lancaster, Machinist, and Robert Moss, of Preston, in
the same County, Tin Plate Worker, for the Invention of "IMPROVE-
MENGS IN LOOMS FOR WEAVING
وو
PROVISIONAL SPECIFICATION left by the said Richard Tomlinson and
Robert Moss at the Office of the Commissioners of Patents, with
their Petition, on the 25th June 1873.
We, RICHARD TOMLINSON, of Walton-le-Dale, in the County of Lan-
caster, Machinist, and ROBERT Moss, of Preston, in the same County,
Tin Plate Worker, do hereby declare the nature of the said Invention'
for "IMPROVEMENTS IN LOOMS FOR WEAVING," to be as follows:-
It is customary to open the sheds of the yarn in looms by inserting a
small round rod. The yarn in passing over and under on the stretch
embraces a very small portion of the periphery of such rod on the top
and bottom side; this has the effect of indenting or nicking such sides
in a very short time, causing the yarn to continually break, thereby.
:

page_text: making knotty weaving, besides retarding the progress, likewise the
yarn embracing so small a portion of the periphery of the rod cracks or
displaces a good portion of the size in the yarn, and makes the cloth
when woven very bare and without cover.
Our Invention consists in placing where the usual round rod is placed,
oval sided V inverted edged rods of metal or metal covered on the sides
where the yarn passes to form the sheets; it will thus be seen that the
yarn will embrace four or five times the surface of these rods more than
the round rods, thereby reducing the friction and wear of such rods, and
therefore more cover on the cloth from the yarn passing the rods with an
easy flat curve instead of a quick sharp curve as by the round rods.
By this application a great saving of labour and material is effected
and better work done.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard Tomlinson and Robert Moss in the Great
Seal Patent Office on the 24th December 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, RICHARD
TOMLINSON, of Walton-le-Dale, in the County of Lancaster, Machinist,
and ROBERT Moss, of Preston, in the same County, Tin Plate Worker,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth day of June, in the year of
our Lord One thousand eight hundred and seventy-three, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said Richard Tomlinson and Robert Moss, Her
special licence that we, the said Richard Tomlinson and Robert Moss,
our executors, administrators, and assigns, or such others as we, the
said Richard Tomlinson and Robert Moss, our 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 LOOMS FOR WEAVING,"
upon the condition (amongts others) that we, the said Richard Tomlinson
and Robert Moss, our executors or administrators, by an instrument in

page_text: writing under our, or their, or one of their hands and scals, 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 we, the said Richard Tomlinson and Robert
Moss, 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 :-
:-
The object of this Invention is to more effectually open the sheds of
yarn in looms in weaving without cracking or disturbing the size in
such yarn, and likewise to save breakage (so usual with shed rods) in
yarn.
Hereunto we annex a Sheet of Drawings shewing the old shed rod
and our improved rods, in order to contrast the two, and to shew the
peculiar advantages in ours over the old one in common use.
Fig. 1. on Drawing, shews the old round shed rod with the yarn e, e,
passing over and under, forming a shed. It will be observed that the
smallness of the diameter of such rod A gives an acute angle to the
yarn at the two points marked a, a," which causes the size in the yarn to
crack and shell of, which will cause the cloth to come out bare and
without cover, likewise from the very smallness of the surface embraced
by the yarn the friction is great, the consequent wear is great, and in
metal rods nicks are soon worn in, and if such solid metal rods are not
sound, or are scaley, it turns up and breaks the yarn.
b
Figs. 2 and 3, shews our improved shed rods in section, cased on each
side with metal; B, B, are the wood rods with or other indented
edges; these edges are indented to enable us to more securely fix the
metal plates 6 on by turning the edges in, as shewn at c, c. The lines
d, d, represent the yarn embracing the rods, as likewise in Fig. 1, by e, c.
The yarn passing over and under these rods does so at an easy curve,
so easy in fact as not to disturb or displace the size on the yarn in such
passage. There is likewise less yarn broken than by the use of the old
rods, and a better covered cloth produced.
Having described our Invention and the way it is made and worked,
we desire it to be known that we do not confine ourselves to the

page_text: precise section or method of covering, but what we claim as secured to
us herein is oval or flat curve sided or inverted edged rods of metal
or metal covered on the sides where the yarn passes, for sheds in looms
for weaving, substantialy as and for the purposes herein set forth.
In witness whereof, we, the said Richard Tomlinson and Robert Moss, 5
have hereunto set our hands and seals, this Twenty-third day of
December, in the year of our Lord, One thousand eight hundred
and seventy-three.
RICHARD TOMLINSON. (L.S.)
ROBERT MOSS.
(L.S.)
Witness,
JOHN LEWIS,
Engineer and Patent Agent,
Preston, Lancashire.