CORTALY IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1872

page_text: LETTERS PATENT to William Smith, of the Sun Foundry, Heywood,
in the County of Lancaster, Machine Maker, for the Invention of
CORTALY IMPROVEMENTS IN LOOMS FOR WEAVING”
Sealed the 25th April 1873, and dated the 27th November 1872.
PROVISIONAL SPECIFICATION left by the said William Smith at the
Office of the Commissioners of Patents, with his Petition, on the
27th November 1872.
I, WILLIAM SMITH, of the Sun Foundry, Heywood, in the County of
Lancaster, Machine Maker, do hereby declare the nature of the said Inven-
tion for "CERTAIN IMPROVEMENTS IN LOOMS FOR, WEAVING," to be as follows:-
My Invention is applicable to the picking motion, and it consists in
so constructing the parts that give motion to the picking sticks that
when the loom is turned back the picking lever is not depressed, and
consequently no motion is imparted to the picking stick; by this means

page_text: the weaver can turn back the loom to find the broken weft or for other
purposes without disturbing the shuttle.
In performing my Invention the bowl that acts on the saddle of the
picking lever instead of being connected to the lever on the tappet
shaft is connected to an elbow lever jointed to the said lever on the
tappet shaft, and the elbow lever is held against a stop by a spring; by
this means so long as the loom is working in the proper direction for
weaving the picking lever is acted upon to throw the shuttle across
the shed, but when the loom is turned back the elbow lever yields as
the bowl passes over the saddle and no motion is imparted to the picking
lever and shuttle:
My Invention may be modified by connecting the saddle to the
picking lever by a slide and spring, so that when the loom is working
in the proper direction the bowl on the tappet shaft lever acts on the
saddle and depresses the picking lever, thereby acting on the picking 1
stick and shuttle, but when the loom is turned back the saddle is moved
lengthways by the bowl on the tappet shaft lever and no motion is given
to the picking stick.
My Invention may be modified, but the two arrangements of
mechanism above described are sufficient to illustrate how the picking 2
motion may be made to actuate the shuttle so long as the loom moves
forward, and how the shuttle ceases to act on moving the loom back-

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of November,
in the year of our Lord One thousand eight hundred and seventy-two,
in the thirty-sixth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said William Smith, Her special
license that I, the said William Smith, my executors, administrators,
and assigns, or such others as I, the said William Smith, my execu-
tors, 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 William Smith, 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 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 William Smith, 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) :-
My Invention is applicable to the picking motion, and it consists in
so constructing the parts that give motion to the picking sticks, that
when the loom is turned back the picking levers are not depressed, and
consequently no motion is imparted to the picking sticks; by this means
the weaver can turn back the loom to find the broken weft, or for other
purposes without disturbing the shuttle.
And in order that my Invention may be fully understood and readily
carried into operation, I will proceed to describe the accompanying
Sheet of Drawings.
Fig. 1 is an end view of a loom, to which one mode of performing my
Invention is applied; a, is the crank shaft; b, the tappet shaft; c, the
picking lever; c', the saddle fixed to it; and d, is the cross shaft of the

page_text: lay swords. The picking lever c is connected to the segment cast to
the socket in which the picking stick is fixed by the strap c³, as usual.
The bowl e that acts on the saddle c¹ of the picking lever c, instead of
being connected to the lever 6¹ or the wheel 6º on the tappet shaft b, is
connected to an elbow lever e jointed to the said lever 6ª, and the elbow
lever e is held against the boss of the lever 6' by the spring e; by this
means so long as the loom is working in the proper direction for
weaving, as shown by the full arrow in Fig. 1; the picking lever c is
depressed by the bowl e¹ acting on the saddle c', (the elbow lever e
being held rigid against the boss of the lever 6',) thereby throwing the
shuttle across the shed, but when the loom is turned back and the
shaft 6 moves in the direction of the dotted arrow the spring e* allows
the elbow lever e to yield as the bowl passes over the saddle, as shewn
in Fig. 2, and consequently no motion is imparted to the picking lever
and shuttle.
In Fig. 3 I have shewn how my Invention may be modified by
connecting the saddle c¹ to the picking lever c by projections on the
lower part of the saddle fitting in the slide c³, which is fixed to the
picking lever as shewn in Fig. 4; the saddle c' is held against the end of
the slide c³ by the spring c*; by this arrangement when the loom is
working in the proper direction the bowl e¹, which is mounted on a stud
in the lever 6' fixed on the tappet shaft b, acts on the saddle c¹, and
depresses the picking lever c, thereby acting on the picking stick and
shuttle, but when the loom is turned back the saddle c¹ is moved
lengthways by the bowl e¹, and consequently no motion is given to the
picking stick. As soon as the saddle c¹ has been moved lengthways by
the action of the bowl e¹ it is drawn back by the spring c¹.
My Invention may be modified, but the two arrangements of
mechanism above described are sufficient to illustrate how the picking
motion may be made to actuate the shuttle so long as the loom moves
forward, and how the shuttle ceases to act on moving the loom back-
wards.
My improvements are particularly applicable in weaving fancy
fabrics, and where more than one shuttle is used, but they may be
applied to other looms.
Having thus stated the nature of my Invention and described two

page_text: convenient modes of performing the same, I wish it to be understood
that I do not limit myself to the details given, but that I claim the
mechanism described and shewn in the Drawings, or any equivalent
mechanism for imparting motion to the picking lever whereby the loom
may be turned back without acting on the shuttle.
In witness whereof, I, the said William Smith, have hereto set my
hand and seal, this Twentieth day of May, One thousand eight
hundred and seventy-three.
WILLIAM SMITH. (L.S.)