AN IMPROVEMENT IN WARP MACHINES FOR THE MANUFACTURE OF LOOPED FABRICS
Year: 1862

page_text: LETTERS PATENT to Edmund Tatham and Amos Tatham, both of Ilkeston,
in the County of Derby, Lace Manufacturers, for the Invention of
"AN IMPROVEMENT IN WARP MACHINES FOR THE MANUFACTURE OF LOOPED
FABRICS."
Sealed the 24th April 1863, and dated the 28th October 1862.
PROVISIONAL SPECIFICATION left by the said Edmund Tatham and Amos
Tatham at the Office of the Commissioners of Patents, with their Petition
on the 28th October 1862.
We, EDMUND TATHAM and AMOS TATHAM, both of Ilkeston, in the County
of Derby, Lace Manufacturers, do hereby declare the nature of the said
Invention for "AN IMPROVEMENT IN WARP MACHINES FOR THE MANUFACTURE OF
LOOPED FABRICS," to be as follows:-
Our Invention consists in the employment of metal bars or levers, as here-
after described, instead of strings for dividing the spring guides in warp machines.
The levers are free to move, or have their fulcra upon fixed points, and have
motion communicated to them from the jacks through a string connected to
the long arm of the levers.
Although we prefer that the levers should move upon fixed points, yet
motion may be imparted to them.
The main feature of our Invention consists in the employment of levers for
dividing the guides, no matter in what manner motion may be communicated
to them.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edmund Tatham and Amos Tatham in the Great Seal Patent
Office on the 28th April 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EDMUND
TATHAM and AMOS TATHAM, both of Ilkeston, in the County of. Derby, Lace
Manufacturers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of October, in the year of our
Lord One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Edmund Tatham and Amos Tatham, Her special licence that we, the
said Edmund Tatham and Amos Tatham, our executors, administrators, and
assigns, or such others as we, the said Edmund Tatham and Amos Tatham,
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 "AN IMPROVEMENT IN WARP
MACHINES FOR THE MANUFACTURE OF LOOPED FABRICS," upon the condition
(amongst others) that we, the said Edmund Tatham and Amos Tatham, or one
of us, our executors or administrators, by an instrument in writing under our,
or their, or one of our or 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 Edmund Tatham and Amos Tatham,
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 thereof, reference being had to the Drawings here-
unto annexed, that is to say:-
Our Invention consists in the employment of metal bars or levers, as here-
after described, instead of strings for dividing and pushing aside the spring
guides in warp machines as required, according to the pattern to be performed.
The levers are free to play upon fixed points, and have motion communicated
to them from the jacquard through strings connected to the long arms of the
levers.
Figure 1 of the accompanying Drawings shews in side elevation, and Figure 2

page_text: in plan, so much of the parts of a warp machine as is necessary to illustrate the
manner in which we carry our Invention into effect. Similar letters refer to
similar parts in all the Figures.
i
A is the guide bar; B, B, are the guides cast in lead C, attached on the
guide bar A; D, D, are stationary fingers or stumps also cast in the lead C, one
of which is placed between every two guides; E, E, are brass or other metal
division plates, cast in a lead secured to the upper rail F of the guide bar A
these brasses have a hole made through them for the reception of a spindle G,
which forms the fulcrum on which the metal bars or levers H, H, work.
These levers, one of which is shewn detached at Figure 3, have a hole bored
through the long arm to receive a string whereby motion is communicated to
them from the jacquard; the short arm terminates in a turned down wedge a,
and on the long arm of the levers or any of them being raised the wedge a
is consequently depressed and pushes the particular guide or guides on which
it or they act aside; J are the needles, and K the leads fixed in a needle bar
not shewn in the Drawings; L, L, are lugs cast in the lead fixed to the upper
rail F, formed with eyes for receiving pin 6, which is held over the short
arm of the levers H, H, to prevent that arm being raised too high upon
the wedges a, being withdrawn from the guides. A bar, not shewn in the
Drawing, is used to depress the long arm, and consequently raise the
short arm of the levers, so as to withdraw and raise the wedges a when
required.
a
Figure 4 is a plan of the fingers or stumps, guides and lead, in which they
are cast.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that we claim as our
improvement in warp machines for the manufacture of looped fabrics, the
employment in such machines of levers made to act substantially in manner
and for the purpose herein-before described.
In witness whereof, I, the said Edmund Tatham, for myself, and on
behalf of the said Amos Tatham, have hereunto set my hand and
seal, this Twenty-fifth day of April, One thousand eight hundred and
sixty-three.
EDMUND TATHAM. (L.s.)