Improvements in Loom Shuttle Guards.
Year: 1894

page_text: Date of Application, 23rd Jan., 1894-Accepted, 24th Feb., 1894
COMPLETE SPECIFICATION.
Improvements in Loom Shuttle Guards.
We, WILLIAM EDWIN BRIGGS PRIESTLEY, of Albion Mills, Laisterdyke,
Bradford, in the County of York, Manufacturer, and WILLIAM DEIGHTON, of
the same place, Mechanic, 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 :-
66
This invention relates to certain improvements in loom shuttle guards, and has
for its object the construction of same in such a manner that, the guard is
automatically placed in such a position, on starting the loom, that it is impossible
for the shuttle to leave the loom should it become diverted in its course across the
race," thereby preventing personal injury to the attendant or other persons in close
proximity to the loom, and further that the reed space, course of the shuttle,
shed" of the warp and cloth, are all clear for examination during the process
of weaving, and upon stopping the loom the guard is automatically raised into such
a position as will admit of the operator having free access to the warp threads and
cloth.
In order that our invention may be fully understood, we will describe the same
in detail by making reference to the accompanying sheet of drawings in which
Fig. 1 represents an elevation of the lathe of a loom constructed in the ordinary
manner with our improved shuttle guard attached.
Fig. 2 a plan of same, and
Figs. 3, 4, 5, and 6 are detached details.
The handrail A. lathe B, reed C. are constructed and operated in the ordinary
manner and form no part of our invention.
To the handrail A. we secure the brackets D. supporting a shaft E. to which are
secured the arms F. F. and F1 carrying the light guard bars or wires G. G.
extending the full width of the reed space C. thereby forming a guard above and
in front of the shuttle race between the shuttle boxes H. H.
Working in a slot J. formed in the arm F is one end of a lever K. secured on
a short shaft L. passing through the handrail A. To the said shaft we secure
another lever M. connected by rod N. to lever O. mounted on stud P. as fulcrum.
To the loom frame Q. or in any convenient manner, is secured a bracket R.
forming and supporting slides for the bars S. and S' which are respectively
connected by springs T. T. to the ordinary "knock off" rod U. the opposite end
of said bars S and S' being formed with projections or "paths" for the purpose
hereinafter described.
"
With the "knock off" rod U. in the position shown, the loom is "running" with
the guard in position for preventing the shuttle from flying out of its path. Upon
stopping the loom by moving the "knock off" rod U to the position shewn by
dotted lines in Fig. 3 the bars S and S¹ connected thereto, will have moved such a
distance that the "paths V and V will be in the position shown by dotted
lines, and upon the next "beat up of the weft, the end O' of lever O will come in
contact with path V. by which the lever is moved on its fulcrum pin P. such a
distance as to cause the lever M. connected therewith by rod N. to operate the
shaft L. and lever K. the latter raising the guard to the position shewn by dotted
lines in detail Fig. 5 clear of the shuttle race.
"
In order to lock the guard when the loom is stationary or in motion, we secure
on the shaft L. a cam W. and in connection therewith, is a flat spring X. secured
in such a manner as to rest on one of the flat surfaces W' or W2 as the case may
be, whereby the guard is held stationary.

page_text: By the mechanism hereinbefore described the weaver is enabled to move the
lathe as required for "piecing" up and the like without lowering the shuttle guard
to the position for protecting the "race."
"
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 :-
1. The combination of the bars S and S¹ with the "knock off" rod U.
levers O. K. M. and the guard bars G. G. arranged substantially in the manner and
for the purpose hereinbefore set forth.
2. The method of holding the guard bars in the required position when the loom
is stationary or in motion, by cam W. mounted on shaft L. in combination with
spring X. substantially in the manner described.
D: 00-1 1
f T
1004
JOHN WAUGH,
Agent.