IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR CONNECTING AND SUPPORTING HEALDS TIT 100G
Year: 1882

page_text: LETTERS PATENT to John Aspinall of Ravensthorpe near Mirfield in the
County of York Tower Loom tuner for an invention of IMPROVEMENTS
IN THE METHOD OF AND APPARATUS FOR CONNECTING AND SUPPORTING HEALDS
TIT 100G MAD
"
County Of 1ork Tower LOOLI tuner for an invention OI IMPROVEMENTS
IN THE METHOD OF AND APPARATUS FOR CONNECTING AND SUPPORTING HEALDS
IN LOONS on WHiTEXTO 1
PROVISIONAL SPECIFICATION left by the said John Aspinall at the Office
of the Commissioners of Patents on the 2nd May 1882.
JOHN ASPINALL of Ravensthorpe near Mirfield in the County of York, Power
Loom Tuner "IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR CON-
NECTING AND SUPPORTING HEALDS IN LOOMS FOR WEAVING"
This Invention has reference to the method of and apparatus for connecting and
supporting the healds in looms. At present the heald shafts are connected by
cords to a metal clip slipped onto the end of the jack lever. Every time the
healds are changed the cords have to be loosened and tied by knots on to new
shafts which is both long and tedious, as each piece of cord must be exactly the
same length, otherwise the healds would not be level. The use of cords are
objectionable because they vary in length by charge in the atmosphere and require
readjusting.
My Invention consists in forming rack teeth at the bottom of the metal clip and
in placing a sliding bracket thereon with catches which take into gear with the
teeth of the rack. In connection with this sliding bracket are suitable lengths of
wire which are connected by hooks to the heald shafts. By this method of
fastening and supporting the healds they can be readily attached and detached
and they are not subject to variation in length by the changing of the atmosphere.
The exact length can also be obtained and their length regulated to the greatest
nicety by lifting or lowering the bracket one or more teeth in the rack.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Aspinall in the Great Seal Patent Office on the
2nd November 1882.
JOHN ASPINALL of Ravensthorpe near Mirfield in the County of York, Power
Loom Tuner "IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR CON-
NECTING AND SUPPORTING HEALDS IN LOOMS FOR WEAVING
25
This Invention has reference to the method of and apparatus for connecting and
supporting the healds in looms. At present the heald shafts are connected by
cords to a metal clip slipped onto the end of the jack lever. Every time the
healds are changed the cords have to be loosened and tied by knots onto new
shafts, which is both long and tedious, as each piece of cord must be exactly the
same length, otherwise the healds would not be level. The use cords, are also
objectionable, because they vary in length by change in the atmosphere and require
re-adjusting they are also more liable to catch fire when they are lit up for
weaving.
My Invention consists in forming rack teeth at the bottom of the metal clip, and
in placing a sliding bracket thereon with catches which take into gear with the
teeth of the rack. In connection with this sliding bracket are suitable lengths of
wire which are connected by hooks to the heald shafts.
In order that my Invention may be more fully understood, I herein give
reference to the accompanying sheet of Drawings wherein Fig 1 is elevation of
apparatus constructed according to my Invention. A is the jack lever employed
for supporting and operating the healds B. Upon the jack lever I place a metal
clip C having its lower end serrated or notched for the purpose of receiving the
points of the two catches D and E. A bracket F is employed having an opening
at the top through which the metal clip C is passed and held in position by the
two catches which are forced into the notches by springs a. The heald shafts are
connected to the bracket F by wires and links G and firmly held and secured
thereby.
Instead of using catches and serrating the bottom of the bar or clip C for
adjusting the height of the healds, holes, and pins as shewn in Fig 3 may be
employed.
By this method of fastening and supporting the healds, they can be readily
attached and detached and they are not subject to variation in length by changing
of the atmosphere.
The exact length can also be obtained and their length regulated to the greatest
nicety by lifting or lowering the bracket one or more teeth in the rack formed on
the bottom of the clip.
Having now shewn and described my Invention and the manner of carrying the
same into practice I would have it understood that I do not confine myself to the
exact details herein shewn and described as they may be varied without departing
from the main features thereof, but what I believe to be new and therefore
claim is-
The means or method for connecting and supporting healds and in adjusting
their relative positions in the manner substantially as herein shewn and described."
In witness whereof I the said John Aspinall have hereunto set my hand
and seal this thirty first day of October in the year of our Lord, One
thousand eight hundred and eighty two