improvements in Apparatus Connected with Looms for weaving Gauze or other similar Fabrics.
Year: 1885

page_text: improvements in Apparatus Connected with Looms for weaving
Gauze or other similar Fabrics.
We, THOMAS RUTHERFORD ASHENHURST of 5 Ashgrove, Bradford, in the
County of York, Technical Instructor, and JAMES THOMAS LISHMAN of 3 Spring
Place, Bradford aforesaid, Pattern Designer, do hereby declare the nature of
our invention for IMPROVEMENTS IN APPARATUS CONNECTED WITH LOOMS FOR
WEAVING GAUZE OR OTHER SIMILAR FABRICS to be as follows:-
"
**
"
Hitherto it has been usual to use what are known as "slackening rods" or
easers "for the purpose of giving ease to the crossing threads in gauze weaving.
We propose to substitute for those "slackening rods" or easers of the form
hitherto employed, slackening healds which may be readily placed behind the
ordinary healds and doups, and which may be actuated by the same or independent
mechanical agency or means as the doup healds themselves. In conjunction with
these slackening healds fixed or stationary rods may be used or not as occasion
may require, and the ordinary form of doup may be employed, or we may employ
a loose slip independent of the looped part of the doup. Such loose part, or slip,
being passed through a large glass, brass or other metal eye when in use, but
dropping clear out of such eye when there is no warp thread through it.
By this means we claim that we can produce gauze fabrics more economically
and use a greater number of doups than by the ordinary method. The use of a
greater number of doups enabling us to produce a much greater variety of fabrics.
THOS R. ASHENHURST,
JAS. T. LISHMAN.

page_text: Improvements in Apparatus Connected with Looms for Weaving
Gauze or other similar Fabrics.
We THOMAS RUTHERFORD ASHENHURST of 5 Ashgrove, Bradford, in the
County of York, Technical Instructor, and JAMES THOMAS LISHMAN of 3 Spring
Place Bradford aforesaid, Pattern Designer do hereby declare the nature of
our invention for IMPROVEMENTS IN APPARATUS CONNECTED WITH LOOMS FOR
WEAVING GAUZE OR OTHER SIMILAR FABRICS and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
This invention has for its object improvements in apparatus connected with
looms for weaving ganze or other similar fabrics, and in carrying out the same we
proceed as follows:-
"
Hitherto it has been usual to use what are known as 'slackening rods" or
easers" for the purpose of giving ease to the crossing threads in gauze weaving.
We propose to substitute for these "slackening rods or "easers," of the form
hitherto employed, slackening healds which may be readily placed behind the
ordinary healds and doups, and which may be actuated by the same or independent
mechanical agency or means as the doup healds themselves. In conjunction with
those slackening healds fixed or stationary rods may be used or not as occasion
may require, and the ordinary form of doup may be employed, or we may employ
a loose slip independent of the looped part of the doup. Such loose part, or slip,
being passed through a large glass, brass, or other metal eye, when in use, but
dropping clear out of such eye when there is no warp thread through it.
And in order that our invention may be fully understood we describe the
accompanying diagram as follows;-A. A. A. A represent healds of the ordinary
form, and through which the warp threads are passed in the ordinary manner.
B. B. represent the doup healds, which may be of the ordinary form but by pre-
ference we use one with a glass or metal eye, similar to that of an ordinary heald
but with a larger eye, and C, C, are the loose slips of the doup. D, D, are
additional healds employed for the purpose of slackening the warp threads when
the doup or doups are raised so as to give ease to those threads and prevent
breakages which would otherwise occur, and E is an iron or other inetal rod,
carried in brackets so as to be adjustable, and so arranged as to facilitate the
regulation of the tension of the crossing threads of the warp.
.
The warp threads are passed through the ordinary healds and the doup healds
in the ordinary manner, but those threads which are passed through the doup healds
are previously passed through the slackening healds D in the manner shown. The
slackening healds D are connected by means of levers F, F, F, F, or other suitable
arrangement to the doups B, so that as one is raised the other will be depressed
and vice versa. By this means whenever a crossing takes place in the warp threads,
by the doup being raised, a sufficient amount of yarn is given off by the slackening
heald D to prevent any undue strain on the warp threads, or doup healds. By
adjusting the rod E the tension of those threads can be regulated to any degree.

page_text: Instead of employing the levers F the slackening healds may be actuated direct
from the machine which actuates the ordinary healds, and doup healds, or by any
other suitable means, and the rod E may be placed either above or below the
warp threads in accordance with the mode of actuating the slackening healds.
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 :-
The use or employment of slackening healds in the manner and for the purpose
herein set forth, and that by these means we can employ a greater number of doups
in any ordinary loom than hitherto.
In witness whereof, we, the said Thomas Rutherford Ashenhurst, and James
Thomas Lishman have hereunto set our hands.