IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1873

page_text: LETTERS PATENT to Moses Thompson, Manager, William Thompson,
Overlooker, both of Halifax, in the County of York, and William
Hodgson, of Tong Park, Baildon, in the County aforesaid, Over-
"
PROVISIONAL SPECIFICATION left by the said Moses Thompson,
William Thompson, and William Hodgson at the Office of the
Commissioners of Patents, with their Petition, on the 21st May
1873.
We, MOSES THOMPSON, Manager, WILLIAM THOMPSON, Overlooker,
both of Halifax, in the County of York, and WILLIAM HODGSON, of Tong
Park, Baildon, in the County aforesaid, Overlooker, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN LOOMS FOR WEAVING,"
to be as follows:—

page_text: Secondly. In fast reed looms to stop the loom.
Thirdly. To dispense with the cross or vibrating rail on which the
swords are mounted.
And, lastly. To secure the slay being steady during the traverse of
the shuttle.
When the shuttle "box," properly a swell therein and forming part of
a cranked lever is acted on, this lever operates a catch and causes the
same to engage with a lever attached to and branching from a horizontal
square shaft extending under the slay from end to end. Should the
shuttle fail to enter the "box," the swell and levers above referred to are
not operated, and a finger on the said horizontal shaft which would
otherwise pass under an incline ascends the same and imparts a partial
rotation to the horizontal shaft, and so removing a longitudinal bar
supporting the bottom of the reed which is thus set loose and swings on
its top supports.
In fast reed looms the motion of the loom is arrested when a shuttlo
fails to "box" by the absence of the shuttle allowing a prong or finger
hinged under the shuttle box to enter a notch formed in a hinged
casting mounted on or near to the front of the end frame of the loom,
and raising the casting so as to bring it in contact with a stop piece 2
fixed under the slay or shuttle box.
In lieu of the cross rail to which the slay swords are attached we
employ a casting secured to each end frame, in the casting is a cavity,
within which the foot of the swords enter and works on a pin passed
through the casting and sword.
The slay is held steady during the traverse of the shuttle by means of
a "wharl" attached to the horizontal shaft already referred to acting
on one arm of a bell-cranked lever; to the other arm of the said lever is
attached a spiral spring which holds the slay steady.

page_text: По said Moses Thompson, William Thompson, and
William Hodgson, in the Great Seal Patent Office on the 21st
November 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, MOSES
THOMPSON, Manager, WILLIAM THOMPSON, Overlooker, both of Halifax,
in the County of York, and WILLIAM HODGSON, of Tong Park, Baildon,
in the County aforesaid, Overlooker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-first day of May, in the year of
our Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said Moses Thompson, William Thompson, and
William Hodgson, Her special licence that we, the said Moses Thompson,
William Thompson, and William Hodgson, our executors, adminis-
trators, and assigns, or such others as we, the said Moses Thompson,
William Thompson, and William Hodgson, our executors, adminis-
trators, 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 (amongst others) that we, the said Moses
Thompson, William Thompson, and William Hodgson, our executors
or administrators, by an instrument in writing under our, 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 we, the said Moses Thompson, William
Thompson, and William Hodgson, 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 and accompanying Sheets of Drawings, that is to say :-

page_text: to "box" properly by securing the self-acting of a loose reed.
Secondly. In fast reed looms to stop the loom.
Thirdly. To dispense with the cross or vibrating rail on which the
swords are mounted.
Lastly. To secure the slay being steady during the traverse of the
shuttle.
When the shuttles "box" properly a swell therein, and forming part
of a cranked lever is acted on, this lever operates a catch and causes the
same to engage with a lever attached to and branching from a hori-
zontal square shaft extending under the slay from end to end. Should
the shuttle fail to enter the box, the swell and levers above referred to
are not operated, and a finger on the said horizontal shaft which would
otherwise pass under an incline ascends the same and imparts a partial :
rotation to the horizontal shaft, and so removing a longitudinal bar
supporting the bottom of the reed, which is thus set loose and swings on
its top supports.
In fast reed looms the motion of the loom is arrested when a shuttle
fails to "box" by the absence of the shuttle allowing a prong or finger
hinged under the shuttle box to enter a notch formed in a hinged
casting mounted on or near to the front of the end frame of the loom,
and raising the casting so as to bring it in contact with a stop piece
fixed under the slay or shuttle box.
In lieu of the cross rail to which the slay swords are attached we
employ a casting secured to each end frame. In the casting is a cavity,
within which the foot of the swords enters and works on a pin passed
through the casting and sword.
The slay is held steady during the traverse of the shuttle by means of
a "wharle" attached to the horizontal shaft already referred to, acting
on one arm of a bell-crank lever; to the other arm of the said lever is
attached a spiral spring which holds the slay steady.
In order that this Invention may be more clearly understood, we
herein give reference to the accompanying Sheets of Drawings illus-
trative of the same.

page_text: Fig. 1 is a front elevation; Fig. 2 a plan, and Figs. 3 and 4 cross
sections of such portions of a loom as are necessary to illustrate that
part of our Invention which refers to securing the self-acting of a loose
reed.
A is the reed which is so arranged as to swing freely on its top
supports B, the bottom C being held in position by means of a longitu-
dinal bar D carried upon a horizontal square shaft E fixed underneath
the slay and extending from end to end, supported and capable of
rotating in the brackets F, when the shuttles "box" properly a
swell G therein, forming part of a cranked lever G₁, is acted on; on the
end of this lever is a catch G2 which engages with a lever H fixed on
the shaft E, and so prevents the said shaft from rotating. If, however
the shuttle does not "box" properly, the lever H is not supported by
the catch G³, and by its weight causes a partial revolution of the shaft B
sufficient to cause the finger J on the said shaft to ascend instead of
passing underneath the incline K, which causes a further revolution of
the shaft E, so that the longitudinal bar D is removed from the bottom
of the reed, which is therefore at liberty to swing freely on its top
support, thus preventing damage to the loom or warp.
Figs. 5, 6, and 7 are side and front elevations and plan of such parts
of a loom as will serve to explain our improvements for stopping the
loom in fast reed looms. When the shuttle "boxes" properly the
ordinary hinged lever A on the shuttle box back B acts on one end of a
bell-crank lever C fixed to a shaft D underneath the slay, and causes the
end C¹ of the said lever to pass over the hinged casting E. Should the
shuttle not "box" properly the end C¹, instead of passing over, passes
underneath the casting at the part marked E', thereby raising the end E
of the casting, causing the finger F to press against the arm G fixed to
the ordinary weft fork lever H, and thus "knock off" or stop the loom.
At the same time that the end O' of the lever O passes under the hinged
casting, a stop piece K fixed to the slay comes in contact with the raised
end E of the casting, by which the forward motion of the slay is
arrested.

page_text: The slay is held steady during the traverse of the shuttle by the
"wharle" O attached to the horizontal shaft E (previously referred to)
acting on one arm of the bell-crank lever P, to the other arm of which
lever is attached a spiral spring S, the lever and spring being attached to
the loom end frame.
In witness whereof, I, the said Moses Thompson, for and on
behalf of myself and the said William Thompson, and William
Hodgson, have hereunto set my hand and seal, this Twentieth
day of November, in the year of our Lord One thousand eight
hundred and seventy-three.
MOSES THOMPSON. (L.S.)
Witness,
WALTER BRIERLEY,
Tasker & Brierley,
Patent Agents,
Halifax, Bradford, & Blackburn.