IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1879

page_text: LETTERS PATENT to James Tinker and Arthur Preston, both of Holmfirth
in the County of York, for the Invention of "IMPROVEMENTS IN LOOMS FOR
WEAVING."
Sealed the 2nd September 1879, and dated the 5th March 1879.
PROVISIONAL SPECIFICATION left by the said James Tinker and Arthur
Preston at the Office of the Commissioners of Patents on the 5th March
1879.
JAMES TINKER and ARTHUR PRESTON, both of Holmfirth, in the County of York,
"IMPROVEMENTS IN LOOMS FOR WEAVING."
This Invention has special reference to looms for weaving woellens or other
heavy goods, but is applicable to looms for weaving light goods.
The object of our Invention is to dispense with the wood picking arm and leather
strap, or other equivalent, at present used for throwing the shuttle across the loom.
Our improvements consist in constructing picking arms of steel or other suitable
metal. These picking arms are made in one piece without joint, and are curved
or bent at top and bottom, so that they will possess the elasticity required for
preventing the said picking arm from breaking, as has been the case previously,
and by dispensing with all joints which were necessary when using the old wood
picking arm and leather strap, the shuttle is thrown much more truly and "sweeter "
than before, and requires less power, and thereby the loss sustained by repeated
breakage of the leather strap or picking leather is prevented.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Tinker and Arthur Preston in the Great Seal Patent Office on
the 5th September 1879.
JAMES TINKER and ARTHUR PRESTON, both of Holmfirth, in the County of
York. "
IMPROVEMENTS IN LOOMS FOR WEAVING."
This Invention has special reference to looms for weaving woollens or other heavy
goods, but is applicable to looms for weaving light goods. The object thereof is to
dispense with the wood picking arm and leather strap, or other equivalent, at
present used for throwing the picker; and our improvements consist in constructing
picking arms of steel or other suitable metal. These arms are made in one piece
without joint, and are curved or bent at top and bottom, so that they will possess
the elasticity required for preventing the said picking arm from breaking, as has
been the case previously, and by dispensing with all joints which were necessary
when using the old picking arm and leather thong, the shuttle is thrown much
more truly and regularly than before, and requires less power and the loss arising
from the breakage of the "picking-leather" which was of common occurrence is
now prevented.
In order that our Invention may be more readily understood we hereto annex
a Sheet of Drawings marked with figures and letters of reference.
Fig. 1 illustrates the general shape of the picking arm A, which is formed of
tempered steel bent to the form shewn, whereby greater elasticity and freedom of
motion is secured.
The arm is secured by set screws a to a casting B secured to the end of the
picking shaft C by means of a pin passing through a boss D formed on the circular
plate E.
Fig. 2 is a side view of the parts mentioned, which constitute what is commonly
called a universal joint. The arm is attached to the picker F by passing the end
over the pin f, felt or leather washers being placed on each side to diminish the
friction when the parts are at work. A cotter pin passing through the pin ƒ holds
the parts together.
Having thus described the nature of our Invention, and shewn by Drawings how
the same may be performed or carried into practice, we would have it understood
that we claim,―
The construction and employment of metal picking arms in manner substantially
as herein shewn and described.
In witness whereof, I, the said James Tinker, for and on behalf of myself and
the said Arthur Preston, have hereunto set my hand and seal, this Third
day of September, in the year of our Lord One thousand eight hundred and
seventy nine.
Witness,
W. H. BARROWCLOUGH,
Bookkeeper,
Holmfirth.
JAMES TINKER. (L.S.)