An Improved Form of Apparatus for Checking the Shuttle in Looms for Weaving.
Year: 1887

page_text: Date of Application, 10th Oct., 1887
Complete Specification Left, 10th July, 1888
Complete Specification Accepted, 10th Aug., 1888
An Improved Form of Apparatus for Checking the Shuttle in
Looms for Weaving.
We RICHARD BOOTHкOYD, Loom Tuner, GEORGE THORNTON, Loom Tuner and
JOHN HAIGH Cashier, all of Netherton near Huddersfield Yorkshire do hereby declare
the nature of this invention to be as follows:-
This invention has reference to means to be employed for checking or arresting the
shuttle as it enters into the shuttle box from the other end of the loom, whereby the
concussion and vibration of the parts caused by the sudden stoppage of the shuttle
will be prevented.
Our invention has special reference to the Knowles' American loom, where a square
horizontal shaft is employed, carrying a picking shoe, operated upon at the proper
time by the ordinary picking bowls for rocking the square shaft, which through the
medium of other mechanism, actuates the picking stick and throws the shuttle across
the loom.
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Our invention consists in fixing to the picking shoe or on some convenient part of
the square rocking shaft, an adjustable inclined plate so placed and arranged that the
picking bowls or a separate bowl specially employed for that purpose will act upon the
inclined plate so as to slightly oscillate the horizontal rocking shaft, thereby causing
the picking stick to advance a few inches in the shuttle box, and this is timed and
regulated to take place as the shuttle is entering into the box, whereby the picker
advances to meet the shuttle, which effectually arrests or checks its arrival, and
prevents the concussion which now takes place by the sudden stoppage of the shuttle
as it enters the box.
Dated this 8th day of October 1887.
TASKER & CROSSLEY,
Halifax, Agents.

page_text: COMPLETE SPECIFICATION.
An Improved Form of Apparatus for Checking the Shuttle in
Looms for Weaving.
We, RICHARD BOOTHROYD, Loom Tuner, GEORGE THORNTON, Loom Tuner, and
JOHN HAIGH, Cashier, all of Netherton, near Huddersfield, Yorkshire, 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 has reference to means to be employed for checking or arresting
the shuttle as it enters into the shuttle box from the other end of the loom, whereby
the concussion and vibration of the parts caused by the sudden stoppage of the shuttle
will be prevented.
Our invention has special reference to the Knowles' American Loom, where a square
horizontal shaft is employed, carrying a picking shoe, operated upon at the proper
time by the ordinary picking bowls for rocking the square shaft, which through the
medium of other mechanism, actuates the picking stick and throws the shuttle across
the loom.
Our invention consists in fixing to the picking shoe, or on some convenient part of
the square rocking shaft, an adjustable inclined plate, so placed and arranged that the
picking bowls, or a separate bowl specially employed for that purpose, will act upon
the inclined plate so as to slightly oscillate the horizontal shaft, thereby causing the
picking stick to advance a few inches in the shuttle box, and this is timed and
regulated to take place as the shuttle is entering into the box, whereby the picker
advances to meet the shuttle, which effectually arrests or checks its arrival, and
prevents the concussion which now takes place by the sudden stoppage of the shuttle
as it enters the box.
In order that this our said invention may be better understood, reference is herein
made to the figures on the accompanying sheet of drawings, and to the letters of
reference marked thereon.
Fig. 1 is elevation of a portion of a Knowles' American loom, viewed from behind,
shewing the application of our invention thereto, and Figs. 2 and 3 are enlarged
details of the picking shoe employed in this class of looms, having our invention
attached thereto.
"
A is the loom frame, B the lay or going part," and C the picking stick having
its fulcrum at a. D is the horizontal square picking shaft, supported loosely in
bearings attached to the loom frame and carrying the upright arm E, to the upper
end of which is attached one end of the picking arm F, the opposite end thereof
being connected to the picking stick C. The square shaft D also carries the shoe G,
which on being struck by the picking bowl H carried by the revolving tappet I, the
said shoe is forced downwards, thus causing the shaft D to rock or turn in its bearings
and by means of the connections E and F the picking stick is thrown forward so as

page_text: to deliver the pick. The picking tappet I is also caused to slide laterally on its axis J
by means of a fork working in the groove or neck b, so that on the next revolution
of the picking tappet, the bowl H being removed from a position over the picking
shoe, would fail to operate the said picking shoe, and consequently the picking stick,
whereby no pick would be made. The several parts thus described constitute the
ordinary picking motion of a Knowles loom, our invention relating to means for
causing the picking stick to advance a few inches in the shuttle box, when the picking
bowl has been removed from its position over the picking shoe, the object thereof
being to cause the picker to advance and meet the shuttle as it enters into the shuttle
box. For this purpose we employ an adjustable inclined plate such as K, which is
secured to the adjustable bracket L, the latter being secured to the bracket M bolted
or otherwise secured to the underside of the picking shoe G.
The plate K is placed to one side of the shoe G, or in such a position that when the
picking tappet is slided laterally on its axis so as to place the picking bowl out of
contact with the picking shoe, the said inclined plate shall be directly under the
picking bowl, which, as the picking tappet revolves, strikes the inclined plate and
depresses it together with the picking shoe, the result being that the square shaft D
is oscillated and causes the picking stick C and the picker c to advance a few inches
(as indicated in dotted line in Fig. 1) in the shuttle box; to meet the shuttle sent
from the opposite side of the loom as it enters the box, thereby receiving the said
shuttle and effectually arresting or checking it on its arrival, thus avoiding the
concussion which now takes place by the sudden stoppage of the shuttle when it
enters the box.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
In mechanism for checking the shuttle in looms, the combination of the adjustable
inclined plate K, with shoe G and bowl H, operated in manner substantially as herein
described and shown in the drawings.
Date : 0 -- 1000