IMPROVEMENTS IN JACQUARD MACHINERY EMPLOYED IN LOOMS FOR WEAVING
Year: 1878

page_text: LETTERS PATENT to James Tinker, of Holmfirth, in the County of York
•
Designer, for the Invention of "IMPROVEMENTS IN JACQUARD MACHINERY
EMPLOYED IN LOOMS FOR WEAVING."
Sealed the 28th February 1879; and dated the 2nd September 1878.
PROVISIONAL SPECIFICATION left by the said James Tinker at the Office
of the Commissioners of Patents on the 2nd September 1878.
JAMES TINKER, of Holmfirth, in the County of York; Designer.
IN JACQUARD MACHINERY EMPLOYED IN LOOMS FOR WEAVING."
"IMPROVEMENTS
This Invention relates to the working of the horizontal needles used in this class
of machines.
In the present construction of machine the needles are arranged very close together,
side by side, and in practice it is found that the pins in the wood lags do not always
come in contact with the centre of the end of the horizontal needle; but frequently.
comes in contact with the edge of the next adjoining needle, the result being that
the pattern intended to be woven is interfered with and spoilt.
My Invention is intended to prevent this irregularity in the working of the
needles, and the improvements consist in the use and employment of a guard, which
consists of a knife or plate placed between each needle, and projecting or standing.
forward between the ends of the needles and the pins in the wood lags, so that it is
impossible for the pins to strike more than one needle at a time. These blades or
plates also prevent the heads of the needles catching and remaining one belind
another, as is the case at present. In practice it is also found that the ends of the
pins in the wood lags become "jumped” or enlarged, but this may be prevented by
having the front edge of the blade sharpened.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said James Tinker in the Great Seal Patent Office on the 1st March
1879.
JAMES TINKER, of Holmfirth, in the County of York, Designer.
"IMPROVEMENTS
IN JACQUARD MACHINERY EMPLOYED IN LOOMS FOR WEAVING."
This Invention relates to that class of jacquard machine in which a series of
horizontal slotted bars or "needles" are employed to control the operation of the
jack-hooks, these horizontal bars being themselves operated by a pegging barrel, or
barrel around which passes a chain of wood lags having projecting pegs or pins.
In machines of ordinary construction the horizontal needles are placed very close
together, and it frequently happens that the pins or pegs in the wood lags strike
against the ends of two adjacent bars or needles instead of against one only, and
the pattern is thus interfered with and spoilt.
The object of my improvements is to prevent the occurence of these irregularities,
and for this purpose I place between the needles a series of knives or plates, which
project forward beyond the ends of the needles, and form guides between which the
pegs must pass, so that it is impossible for any peg to come in contact with more
than one "needle." These blades or plates also prevent the heads of the needles
from catching and remaining one behind another, as is sometimes the case at present.
Should the ends of the pins or pegs become "jumped or enlarged, the jagged
sides of such pegs will be cut away by coming in contact with the edges of the
blades, which may be sharpened for the purpose.
In order that my Invention may be more fully understood, I herein give reference
to the accompanying Sheet of Drawings illustrative thereof.
Fig. 1 is a section of the upper portion of a jacquard machine, and also of the
pegging barrel and peg lags.
Fig. 2 is plan view of same.
A are the horizontal slotted bars or "needles," through which the jack hooks
pass, and B are the pins or pegs inserted in the lags C for operating the said
"needles; " D are the blades or plates between which the pins or pegs enter, and it
will be readily seen that should one of the pins become bent or "jumped" at the
end, it will come in contact with the edge of one of the plates, which will bring it
to its proper position, and if sharpened will cut off the jagged or enlarged
portions.
Having thus described the nature of my said Invention, and the manner in
which the saine is to be performed or carried into practice, I would have it under-
stood that I claim as my Invention, "The use of blades or plates D, or other
equivalent device, for confining the action of the pegs to their appropriate bars or
needles, substantially as herein shewn and described.
In witness whereof, I, the said James Tinker, have hereunto set my hand
and seal, this Twenty-fourth day of February, in the year of our Lord One
thousand eight hundred and seventy-nine.
Witness,
WALTER PRESTON,
Woollen Manufacturer,
Holmfirth.
JAMES TINKER. (L.S.)