Improvements in and relating to Looms for Producing Slit-up Fabrics.
Year: 1898

page_text: Date of Application, 19th Jan., 1898
Complete Specification Left, 11th Oct., 1898-Accepted, 19th Nov., 1898
PROVISIONAL SPECIFICATION.
Improvements in and relating to Looms for Producing Slit-up
Fabrics.
We, ROBERT LIVINGSTON, of Giffen Park, Linen Manufacturer, and ANDREW
ADAMSON, Factory Manager, both of Dysart, Fifeshire, do hereby declare the nature
of our invention to be as follows:-
This invention has reference to and comprises improvements in and relating
to looms and consists of devices for attaching to looms for the purpose of splitting
patent selvedge goods in the loom as these are being woven. The advantages of
the arrangement being that the splitting is effected continuously during the
weaving, and that an even short fringe is produced outside the patent selvedge,
while the risk of damage is avoided.
In carrying into practice the improvements of this invention a bracket made of
iron, brass or other suitable metal is bolted to the inside of the breast beam of
loom and carries a small sharp knife. This knife is placed with its cutting edge
at an angle to the cloth as it approaches the breast beam and its lower end is
inserted in a recess in the lower part of the bracket and the top end in a recess
in the top part of same. A metal pin is then inserted through the top of the
bracket and the top of the knife to hold in firmly in position. By this arrangement
of the knife it can be removed at a moment's notice when blunt and another
sharpened knife put in its place without loss of time at the loom. Other methods
of securing the knife may however be adopted.
A spiral metal spring is fixed to back beam of loom and to this spring are
attached two wires of brass or other suitable metal, which are carried forward
along with the warp threads of the web, through a heddle same as a warp thread and
have their other ends securely fixed to the knife bracket on breast beam, one on
each side of the small knife.
The patent selvedge are worked as usual the, two wires being worked or woven
into the space between the two patent selvedges.
By this arrangement the cloth as it comes in contact with the knife is steadily
and evenly split, the two metal wires being held tight whilst they are raised and
lowered by the heddles, by the spring fixed to the back beam.
Dated the 18th January 1898

page_text: of our invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement in writing, reference
being made to the accompanying sheet of drawings:-
This invention has reference to and comprises improvements in and relating
to looms and consists of devices for attaching to looms for the purpose of splitting
patent selvedge goods in the loom as these are being woven. The advantages of
the arrangement being that the splitting is effected continuously during the
weaving, and that an even short fringe is produced outside the patent selvedge,
while the risk of damage is avoided.
And in order that our invention may be properly understood we have hereunto
appended a sheet of explanatory drawings in which Figure 1 is a vertical section
of so much of a loom as is required to illustrate our invention and Figure 2 is a
plan of same, while Figure 3 is a view to an enlarged scale of the cutting device.
Referring to these drawings;-In carrying into practice the improvements of
this invention a bracket A made of iron, brass or other suitable nietal is bolted
to the inside of the breast beam B of the loom, and carries a small sharp knife C.
This knife C is placed with its cutting edge at an angle to the cloth 1) as it
approaches the breast beam B and its lower end is inserted in a recess a in the
lower part of the bracket A and the top end in a slit a¹ in the top part of same.
metal pin is inserted through the top of the bracket A and the top of the knife C
to hold it firmly in position. By this arrangement of the knife C it can be removed
at a moment's notice when blunt and another sharp knife put in its place without
loss of time at the loom. Other methods of securing the knife may however be
adopted.
A
A spiral metal spring E is fixed to back beam F of the loom and to this spring E
are attached two guiding wires G of brass or other suitable metal, which are
carried forward along with the warp threads H of the web, through a heddle I or
heddles same as warp threads and have their other ends securely fixed to the knife
bracket A on breast beam B one on each side of the small knife C.
The patent selvedges are worked as usual, the two wires G being worked or
woven into the space between the two patent selvedges.
By this arrangement the cloth D as it comes in contact with the knife C is
steadily and evenly split, the two metal wires G being held tight while they are
raised and lowered by the heddles by the spring E fixed to the back beam F.
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;
-
First. A device for splitting patent selvedge goods in the loom while being
woven constructed and arranged all substantially as herein described and illus-
trated by the accompanying drawings.
Second. The combination with a loom of a cutting knife and guiding wires for
the purpose of splitting patent selvedge goods while being woven all substantially
as herein described and illustrated by the accompanying drawings.
Dated the 10th day of October 1808
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.