Improvements in or relating to Shuttle Guards in Power Looms.
Year: 1895

page_text: Date of Application, 8th July, 1895-Accepted, 10th Aug., 1895
COMPLETE SPECIFICATION.
Improvements in or relating to Shuttle Guards in Power Looms.
We, ROBERT SHAW, and ARTHUR WHITWORTH, both of the Firm of Robert
Shaw and Sons, Stanley Mills, Colne, and York Street, Manchester, all in the
County of Lancaster, Cotton Spinners and Manufacturers, 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 shuttle guards which in power looms are employed to
prevent the shuttle accidentally leaving the loom during the process of weaving.
The object of this invention is to construct a guard that will automatically fall
into and retain the required position so as to act as an effectual guard as soon as the
loom commences to work. We attain this object by the means hereinafter
described and as illustrated in the accompanying sheet of drawings representing
our invention In the several views showu therein, similar letters refer to similar
parts.
In this invention we construct a shuttle guard by means of a rod as a that is
bent near the ends b and c and attached to the hand shell d of the slay board by
means of right and left hand brackets as e and finto which the ends of the rod a
are inserted as shown in Figs. 1 and 3 which represent a front view and plan
respectively of so much of a loom as is necessary to show the application of our
inveution. In these views the shuttle guard represented in the position it would
assume when the loom is working. We form the bracket with a groove f¹
extending from the aperture 2, in which the end 6 of the rod a is inserted, to the
outer edge of said bracket in a downward direction as shown drawn to an enlarged
scale in Figs. 4 and 5 which are side and front views of said bracket; the aforesaid
groove is intended for the reception of the bent portion a' of the rod a, in which
said bent portion is retained by the action of the spring y or an equivalent. When
the loom is stopped, the operator may place the shuttle guard out of action by
pressing the rod a towards the bracket e thereby compressing the spring 9, when
the bent portion a' of said rod is withdrawn from the groove and the rod a
placed up in the position shown in Fig. 2. and by dotted lines in Fig. 6, the last
named figure being a transverse section of the slay board and the hand shell with
our improved shuttle guard attached thereto.
When power is applied to the loom the first movement of the slay board either
backwards or forwards causes the rod a to fall down into position, the bent
portion a entering the recess f¹, where it is retained by means of the spring y until
it is required to be raised by the operator in the manner herein before described.
Having now particularly described and ascertained the nature of this our
said invention and in what manner the same is to be performed we declare that
what we claim is :-
1st. In power looms the construction and application of a shuttle guard with a
rod as a in which is a bent portion a', in combination with a bracket as fin which
is a groove f, and with a spring as g or an equivalent for the purpose and in the
manner substantially as hereinbefore described.

page_text: 2nd. In power looms the construction and application of a shuttle guard in the
manner and for the purpose substantially as herein before described.
Dated this 6th day of July 1895.
THOMAS PRESCOTT,
53 Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicants.