Year: 1886

page_text: Date of Application, 21st Oct., 1886.
Complete Left, 16th July, 1887.
Complete Accepted, 16th Aug., 1887.
We GEORGE ALFRED SHIERS Manufacturer and ABRAHAM WRIGHT Weaving
Manager, both of Medlock Mills Oldham in the County of Lancaster do hereby declare
the nature of this invention to be as follows:-
This invention relates to that part of a loom called the "Jack-stand" which is a
bracket for supporting the "jacks" to which the heald frames are attached by cords.
Usually this "jack-stand" is in the form of a rigid bracket bolted to a convenient
part of the loom framing and when the heald cords become either slack or tight
owing to the dry or moist state of the atmosphere it caused unevenness in the weaving
and it became necessary from time to time to untie the cords and either to tighten or
slacken them as the case might be.
To remedy this inconvenience I propose to make the "jack-stand" in two parts,
one of which is bolted rigidly to the frame, as heretofore, and the other part (which
is the portion actually carrying the centres of the jacks) is made so as to slide therein
or thereon and is constantly pressed upwards by a spiral or other spring.
It will be evident that this spring having a constant tendency to raise up the jack
stand, will keep the heald cords always at a uniform tension whatever may be the
state of the atmosphere (whether dry or damp) and at the same time it will allow the
heald cords to "give and take" with the beat up of the slay.
A screw acting upon the spring is also provided for increasing or diminishing the
pressure thereof (and consequently the tension of the heald cords) according to the
nature or quality of the yarn which is being woven.
Dated this 20th day of October 1886.
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicants.

page_text: We GEORGE ALFRED SHIERS Manufacturer and ABRAHAM WRIGHT Weaving
Manager both of Medlock Mills Oldham in the County of Lancaster do hereby declare
the nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
This invention relates to that part of a loom called the "Jack-stand" which is a
bracket fixed to the upper part of the loom for supporting the jacks to which the heald
frames are attached by cords.
Usually this "Jack-stand" is in the form of a rigid bracket bolted to a convenient
part of the loom framing and when the heald cords become either slack or tight
owing to the dry or moist state of the atmosphere it causes an unevenness in the
weaving and it becomes necessary from time to time to untie the cords and either to
tighten or slacken them, as the case may be.
Our invention is intended to remedy this inconvenience and the nature of our
improvements will be readily understood on reference to the annexed sheet of
drawings and the following explanation thereof.
Fig. 1 is an end view (drawn partly in section) and Fig. 2 a front view of a
"Jackstand" constructed according to our invention.
We propose to make the "Jackstand" in two parts one of which a, a is bolted
rigidly to the loom frame 6, 6 as heretofore, and the other part c, c (which is the
portion actually carrying the centre or axle pin d, d of the jacks e, e, is made so as to
slide vertically therein and is constantly pressed upwards by a spiral spring f,f. It
will be obvious that, if preferred, the part c, c may be made to slide upon or against
(instead of in) the part a, a and that any other convenient form of spring acting
upwards may be used in place of the spiral spring f, f and it will be evident that the
action of this spring having a constant tendency to raise up the movable portion of
the "Jackstand c, c will keep the heald cords (which are fastened to the ends of the
Jacks e, e) always at a uniform tension whatever may be the state of the atmosphere
(whether dry or damp) and at the same time it will allow the heald cords to "give-
and-take" with the beat up of the slay.
A hand wheel g g and a screw h, h acting upon the spring f, fare also provided for
increasing or diminishing the pressure thereof (and consequently the tension of the
heald cords) according to the nature or quality of the yarn which is being woven.

page_text: Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is :-
An improved Jackstand for looms made in two parts one of which is bolted rigidly
to the loom frame and the other part (which carries the centres of the jacks) slides
vertically therein or thereon and is constantly pressed upwards by means of a spiral
or other spring substantially as and for the purposes hereinbefore more particularly
described and illustrated by the drawings annexed.