Improvements in Rotary Shuttle Boxes for Looms and in Mechanism for Operating the same.
Year: 1891

page_text: Date of Application, 26th Aug., 1891-Accepted, 26th Sept., 1891
COMPLETE SPECIFICATION.
Improvements in Rotary Shuttle Boxes for Looms and in Mechanism
for Operating the same.
A communication to me from abroad by OTTO MENZEL, and ADOLF Adler,
both of Goerlitz, in the Empire of Germany, Manufacturers.
I, EDMUND EDWARDS, of the firm of Edwards and Co. Patent Agents and
Engineers, of 35 Southampton Buildings, Chancery Lane, in the County of
Middlesex, do horeby 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 and accompanying drawing, (that is to say):—
In ordinary looms having revolving shuttleboxes, such boxes carry six shuttles at
most, so that the change of colour is limited to six different threads, whilst by the
present invention the box carries ten shuttles, so that ten different coloured threads
can be contained in them.
In the accompanying drawing, which is in illustration of the invention,
Fig. 1 is a front view of the revolving shuttlebox mechanism,
Fig. 2 is a section through the same, and
Fig. 3 is a side view of the same.
The revolving shuttlebox is applicable to all looms in ordinary use, and therefore
the revolving box must not exceed a certain size, and as the shuttles also have a
certain size, the openings for the latter in the revolving box are arranged at
different distances from the centre of the latter, as shewn in Fig. 2, so that the ten
shuttles may find room therein. And in order that all the shuttles may be brought
to the same level opposite to the shuttle race B, the box as it revolves must also
either rise or fall, so that the shuttles when driven by the picker C may always be
at the same level:
For this purpose the revolving box A is carried in a frame D which can be
raised or lowered by the excentric or cam E. The left side of the frame D.
embraces the revolving shuttlebox A, as shewn in Fig. 2, so that the latter can turn
freely in the frame, and on the right hand side of the latter the axle of the
revolving box is carried, a toothed wheel G being fixed upon its outer end,
(Fig. 3).
The frame is guided on the left side in a slot H on the arm J, which is
fixed upon the race B, and on the right side by the axle F in the lever arm K
which is fixed upon the shaft L below, upon which is also fixed a fork M carrying
the excentric or cam E, so that all the parts of the mechanism move backward and
forward together.
The frame D is provided with a projection below, which rests upon the cam E,
and the latter is of a rounded rectangular shape, and can be turned round
through 90°, so that the projection rests either upon its side or upon its outer end,
and thereby bringe, either one of the outer ring of openings A, or one of the inner
ring A', to the level of the race B.
The turning of the cam E is effected by a double-ended lever N fixed upon its
axle, and having two end pins N' which are connected by the hooks P and P' with
the levers C, C, the links P and P¹ being connected together by a spring P
so that one hook can slide endways upon its pin whilst the other hook turns
the double lover N.
The double ended levers C, and C¹, turning upon the centre 0 are worked in
the usual way through the hooks Q, and Q, the horizontal rod R, and the
bent levers S, and S, by means of the card cylinder T, the pins upon the
levers S,,and S¹, entering the holes in the card T, the hooks Q, and Q, being
pressed oiitward, so that by the up and down movement of the bar R, the

page_text: levers C, or C are turned upon their centre O' and by their hooks P, or P¹ turn
the lever N, and with it the cam E through 90°.
The projection D' has at its side a pin D which fits in a recess in the side
of the cam E, so that the frame D is drawn down by the latter, and a spring M¹
holds the cam steady in either of its positions. The revolving box A is perfectly
cylindrical and the openings A¹ pass through it at both ends, so that the picker C
can pass through with a perfectly even and regular movement.
When the shuttlebox A is lowered or raised, to bring another shuttle in front of
the picker C, the box must also turn upon its axis through a tenth part of
& revolution, which is offected by means of the double forked rack U, one of the
racks being always in gear with the toothed wheel G upon the axis of the box A,
which is consequently turned round when it is raised, the toothed wheel' G passing
along the rack. The double forked rack U turns on the centre K' carried by the
arm K, and is connected at its lower cranked end, by the link U', with the double
ended lever V, which turns on the centre 0 and supports at its outer end the
moveable bar V1, which is connected at its upper end to the lever W by a pin
moveable in slits in which it is adjustable. The front of the lever W has a
pin which enters the card cylinder T through the holes in the card T, so that the
lever W and the bar V₁ move down, and the lever V is thus turned so that
the right hand ruck engages with the toothed wheel G, whilst if the lever W is
raised by the forked lever X, the spring K2 presses the fork U to the other side, so
that the left hand rack engages with the toothed wheel G, and when the box A
goes down it is turned by the wheel G, in the same direction as before, sufficiently
far to bring the next shuttle opposite to the picker, which during the revolution of
the box remains outside the latter in a guide in the iron C, and whilst passing
through the box A is guided in the lower groove of the opening A
Y is a separate lever working by the levers S and S', and having suspended to it
a double hook of which the right hand one Y¹ turns the card cylinder T round by
means of the toothed wheel Z when the loom is working properly; but if a shuttle
thread breaks and the box A has already moved round before the loom has stopped,
an arrangement is necessary by which when the loom is turned backwards, the card
cylinder T and the box A shall also be turned backward until the shuttle with the
broken thread is brought to the top, when the thread can be mended and the loom
again set going. For this purpose the hook Y₁ is made in one piece with a
second hook Y, both turning on a centre on the lever V. On each side of this
double hook is a pin Y, on which a weight Y can be placed. When the loom is
working properly, the weight Y is placed on the pin of the hook Y¹ so that this
hook only comes into operation, the other one Y2 being kept away from the
wheel Z but if the loom is to be turned backward, the weight Y* is removed
from the pin on the hook Y¹, and is placed upon that of the hook Y', so that it
alone operates the wheel Z, and the latter, together with the card cylinder T and
the mechanism connected with it, also turns backward.
As in ordinary looms, the levers C, C, V, the hooks Q, Q', and the bellcranked
levers S, S', are driven by the machine in one direction, and by springs in the
other direction.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
First. A power-loom with revolving shuttlebox, in which the number of different
shuttles is increased without increasing the size of the shuttlebox, the latter not only
having the ordinary shuttle chambers round the circumference of the box, but also
between them similar oues nearer to the axis of the box, which are brought into
proper position as required, by the raising of the shuttlebox, substantially as
described.
Second. For the purpose of turning the card cylinder T backwards when
required, the arrangement of a double hook on the lever Y above the toothed

page_text: wheel Z, which during the proper working of the loom is loaded with the
weight Y, on the right side, and when the loom is turned backward is loaded with
the weight Y' on the left side, substantially as described and shewn.
Dated this 26th day of August One thousand eight hundred and ninety-one.
EDWARDS & Co.,
Agents for the Applicant.