Year: 1894

page_text: Date of Application, 25th Sept., 1894-Accepted, 27th Oct., 1894
arrangement of mechanism, by which the shuttle is prevented leaving a loom,
should it be obstructed and diverted in its course across the lathe when travelling
from one shuttle box to the other.
In order that our invention may be fully understood, reference is made to the
accompanying drawings, in which
Fig. 1 represents a view of a detached lathe of a loom with our improvement
fitted thereon.
Fig. 2 is a plan of the same.
Fig. 3 is a detailed sectional elevation through line a. b. and
Fig. 4 a similar view through line c. d.
The lathe A. reed B. and top rail C. of the loom are of the ordinary construction,
and to the top rail C. we secure a number of brackets D. To each end bracket is
jointed an arm E. and also to one at E¹ near the centre of the lathe, the arms E.
may form part of the guard bar F. or be secured thereto in a similar manner as the
centre arm E¹.
The guard bar extends across the loom from near the entrance of one shuttle
box G. to the other G' and at such a distance above the warp threads, that they
are free to be operated, each end of the bar F. being raised at F1 in order to give
freer access to the shuttle boxes G. and G¹ for the purpose of placing the shuttle
in, or removing same from the said boxes.
So long as the loom is in motion, the bar F. is held in the position shewn by
full lines in the drawings, with the extended ends of arms E. at E' in contact with
the end brackets at D₁ by a catch arm H. mounted on the centre bracket J. and
prepared with a recess K. for engaging with and retaining the said bar in a position
for preventing the escape of the shuttle.
A spring S. is secured to the top rail C. with the free end of the spring resting
upon a curved portion of the before mentioned arm H. in a manner that, the guard
bar F. is held firm in its required position for preventing the escape of the shuttle,
should it be obstructed and diverted in its course across the loom.
The underside of the bar F. is inclined, that is to say, the front edge is lower
than the edge nearest the reed B. so that on a shuttle striking the inclined surface
of the bar, the tendency is for the shuttle to be again directed amongst the warp
threads and towards the reed B.
The guard bar F. can be moved back to the position shewn by dotted lines, on
raising the arm H. until the recess K. clears the said bar, and moving the latter a
little distance towards the reed B. when on liberating the said arm, the spring S.
forces the arm H. and guard bar F. back until the supporting arms E. are in
contact with the top rail Č. as shewn, thus giving the attendant access to the warp
threads for examination and repairs.
On putting the loom in motion, the guard F. is automatically moved to the
position for guarding the course of the shuttle, by the sudden changing in the
motion of the lathe A. at the time of the beat up of the weft, the swinging forward
of the guard bar F. overcoming the pressure of the spring S. raises the arm H.

page_text: until the bar F. is opposite the before mentioned recess, with which it automatically
engages, thus securing the bar F. in the necessary position for guarding the course
of the shuttle, until again liberated in the manner as before described.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is,
A shuttle guard mounted to the top rail C. and so arranged that the bar F. is
retained in the position for guarding the shuttle, by a recess in an arm H. and by
the extended arms E' substantially in the manner as shown and described.
Dated this 24th day of September 1894.
JOHN WAUGH,
Agent.