Improvements in or relating to Lace Curtain Machines, Warp Machines, Looms, and the like.
Year: 1896

page_text: Date of Application, 21st Aug., 1896
Complete Specification Left, 19th June, 1897-Accepted, 21st Aug., 1897
Improvements in or relating to Lace Curtain Machines, Warp
Machines, Looms, and the like.
I, WILLIAM TRUSWELL MARTIN of Newdigate Street Nottingham Machinist do
hereby declare the nature of my said invention to be as follows:-
My invention relates to lace curtain machines warp machines looms and other
textile machinery more particularly to that class in which each individual thread is
weighted to obtain the necessary tension or capable of being weighted and consists in
80 applying an electrical alarm apparatus that should a thread break electrical contact
is made causing a bell or gong to sound and thus attract the attention of the
attendant.
According to my invention I provide two wires in electrical connection with a bell
and a battery or other source of electricity so arranged that the weight or "lingo" on
the thread or a lever or bead resting upon or attached thereto (in all cases made of
metal) is capable of making contact or completing the circuit when the thread
becomes broken.
GEO.
DOWNING,
8 Quality Court, London, W.C., Agent.
Improvements in or relating to Lace Curtain Machines, Warp
Machines, Looms, and the like.
I, WILLIAM TRUSWELL MARTIN of Newdigate Street Nottingham, Machinist, do
hereby declare the nature of iny said invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statment :-
My invention relates to lace-curtain machines, warp machines, looms, and other
textile machinery, inore particularly to that class in which each individual thread is
or is capable of being weighted to obtain the necessary tension, and consists in so
applying electrical alarm apparatus, with or without indicators, that should a thread
break, electrical contact is made causing a bell or gong or any other instrument to
sound and this attract the attention of the attendant.
And in order that my said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawing which illustrates the

page_text: application of my invention to a lace-curtain machine, and from which its application to
warp machines, loons, and other machines of a similar nature will be readily understood.
According to my invention I provide one or more set or sets of preferably parallel
contact bars or wires a electrically connected with a bell or bells and indicator or
indicators not shown on the drawing. Each set of contact bars, bell and indicator is
electrically connected with a battery, dynamo, or other source of electricity, the
contact bars a being arranged immediately beneath the metal weights or "lingos" b.
which are supported on and by the threads c; each thread c is provided with a
"lingo," as is well known, such weight or "lingo" serving to maintain a constant or
equal tension upon the thread. It will therefore he obvious that should any one of
threads become broken the "lingo" drops on to the contact bars making contact
between thein and completing the circuit through the bell and indicator.
In the drawing, one of the lower threads c' is shown broken and the corresponding
"lingo" resting upon the contact bars a, so much of a lace curtain machine being
shown as is necessary to illustrate the application of my invention.
Instead of "lingos" I sometimes make use of levers arranged to rest upon the
threads and make contact as such threads become broken; or metal beads may be used
for a similar purpose.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I clain is:-
1. In lace curtain machines warp machines looms, and analogous textile machinery,
the application and use of parallel or any other contact bars, each set of which is in
electrical connection with a bell and indicator and a battery dynamo, or other source
of electricity arranged to act in combination with the weights or "lingos," levers
beads, or the like to give warning and to indicate that a thread is broken, operating
substantially as described and illustrated by the drawing.
2. In lace curtain machines, warp machines, looms, and analogous machines in
which a number of threads are being utilised, the method of giving warning and
indicating the presence of a broken thread, substantially as set forth.
Oh June 1807.
Dated 1700
GEO. DOWNING,
8 Quality Court, London, W.C., Agent.