Improvements in the Slay or Running Board of Looms for Weaving.
Year: 1889

page_text: Date of Application, 21st Jan., 1889
Complete Specification Left, 21st Oct., 1889-Accepted, 23rd Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Slay or Running Board of Looms for Weaving.
J, JOHN TYNE THORNTON, of Paddock, Huddersfield, in the County of York, Oil
Merchant, do hereby declare the nature of this invention to be as follows:-
:-
In looms for weaving it is at present the custom for the warp to rest upon the slay
board when the shed is open, and the shuttle in passing through the shed runs over
the warp threads, resting upon the slay, and when knots or other hard substances are
in the warp it is often broken, and also when tender warps are being used, the friction
of the shuttle upon the said warp frequently breaks down the ends.
To prevent breakages by the shuttle passing over the warp is the object of my
invention, and this I accomplish by forming a grate on the upper side of the slay, so
that the warp, instead of resting upon the slay as hitherto, passes through the-grate
so as to be beyond the reach of the shuttle as it goes through the shed, consequently
the warp is not broken by contact with the shuttle, as is now the case.
The grate
may be formed of wires arranged parallel with the warp after the manner of a reed;
or grooves may be made in a plate attached by screws or other means to the running
board; or grooves may be formed in the running board itself, so that warp can lie in
the said grooves, and get beyond the reach of the shuttle.
By employing a grate or grooves as above described, the lower half of the warp
forming the shed, together with the knots or faulty places in the warp threads, are
removed from contact with the shuttle as it is sent through the shed, and the breakage
of warps, as explained is now prevented.
Dated this 19th day of January 1889.
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
Improvements in the Slay or Running Board of Looms for Weaving.
I, JOHN TYNE THORNTON, of Paddock, Huddersfield, in the County of York, Oil
Merchant, 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 the slay or running boards of looms for weaving, which
said running boards support the reeds and form the race course over which the shuttles
travel when sent across the loom. At present the running board is composed of wood
or metal, and in most cases is provided with a steel plate upon which the shuttle runs,
and as the warp threads of the lower half of the shed rest upon this hard surface
during the time the shuttle passes over them, it frequently happens that the said
threads are broken by the shuttle, and especially is this the case when there are knots
or weak places in the warp.
To prevent breakages by the shuttle passing over the warp is the object of my
invention, and this I accomplish by forming a grate on the upper side of the slay, so that
the warp, instead of resting upon the slay as hitherto, passes through the grate so as
to get beyond the reach of the shuttle as it goes through the shed, consequently the
warp is not broken by contact with the shuttle, as is now the case. The grate may
be formed of wires arranged parallel with the warp after the manner of a reed; or
grooves may be made in a plate attached by screws or other means to the running
board ; or grooves may be formed in the running board itself, so that warp can lie
in the said grooves, and get beyond the reach of the shuttle, whilst in some cases,
P

page_text: a sheet of indiarubber or other like soft material may be placed on the running
board for the warp to rest upon.
In order that my invention may be better understood, I will now make reference to
the accompanying sheet of drawings illustrative thereof, wherein Fig. 1 is cross
section of the slay board of a loom baving my improvements applied thereto and
Fig. 2 is plan view thereof. A represents the slay board and B the reed. My im-
*provements are shewn at C, which consists, in this illustration, of a number of fine
wires a placed parallel with the warp. These wires are arranged side by side as
shewn in plan view Fig. 2, an intervening space being left between each wire so that
when the shed D is opened as shewn in Fig. 1 the warp threads in the lower half of
the shed will lie in the spaces left between the wires so that when the shuttle E is sent
across the loom it does not run upon the warp threads as is now the case, consequently
there are no breakages by the to and fro passage of the shuttle. The ends of the
wires a may be soldered to thin plates secured to the slay board;--or instead of
the wires being attachel separately they may be cut or formed from a plate cas shewn
in Figs. 3 and 4, the said plate being secured to the slay board by scrows d or other
means.
Instead of employing grates as already described, a corrugated or grooved plate or
sheet may be attached on the running board of the loom as shown at F in Fig. 5,
where it will be understood that the warp threads will lie in the grooves of the said
plate F. This grooved or corrugated plate or sheet may be composed of porcelain,
metal, indiarubber, or other like material for the warp to rest upon; and instead of
the sheet being corrugated, if made of indiarubber or other like material, it may be
plain, in which case the warp threads would sink therein, so as to get beyond the
reach of the shuttle when sent across the loom.
By the employment of means as above described, the lower half of the warp,
forming the shed, together with the knots or faulty places in the said warp threads,
are removed from contact with the shuttle as it is sent through the shed, and the
breakage of, or damage to, tender warps is now prevented.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The application to the running boards of looms, of means substantially as herein
shewn and described, whereby the warp threads get beyond the reach of the shuttle
as it travels backwards and forwards across the loom.
Dated this 19th day of October 1880
TASKER & CROSSLEY,
Halifax & Huddersfield, Agents.