Improvements in and relating to Shuttles and Shuttle Guards of Looms for Weaving.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Shuttles and Shuttle Guards of
Looms for Weaving.
DAVID SHAW Dyson, 37, Rowland Street, Rochdale, Lancashire, JOHN HOLROYD
DYSON, 37, Rowland Street, Rochdale, Lancashire, Mechanics, do hereby declare
the nature of this invention to be as follows;-
Relates to shuttle guards and an improved shuttle applicable to looms for
weaving and consists in forming the guards and the shuttle of such a form that
the shuttle slides between the guards and against the surface of the reed not
requiring any bottom board. The way in which this is accomplished is to form
the shuttle with slides at the back, the shuttle to be either wood or metal
or a combination of the two. The guard is so formed as to receive these slides
which are on the shuttle, the guards can be made with the reed or seperate and
attached to the reed by means of bolts rivets or screws and plates. The warp
threads work through the guards and reed when the loom sheds thus leaving the
passages for the slides open in the guards, the ends of the slides on the shuttle
to be tapered to a point so as to enter the passages in the guards easily. The
shuttle to have a point at each end projecting beyond the points on the slides for
the purpose of clearing a passage through the shed for the body of the shuttle,
the boxes at each end of the reed for receiving the shuttle to have recesses of the
same form as the passages in the guards. The guards to be made in the same
ratio as the dents in the reed.
Dated this 22nd day of September 1898.
DAVID SHAW DYSON.
JOHN HOLROYD DYSON.
Improvements in and relating to Shuttles and Shuttle Guards of
Looms for Weaving.
We, DAVID SHAW DYSON, of 37, Rowland Street, Rochdale, in the County of
Lancaster, Mechanic, and JOHN HOLROYD DYSON, of the same address, 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 and accompanying drawings:-
Our said invention has reference to looms for weaving and relates particularly
to an improved form of shuttle guard and shuttle for use in conjunction there-
with.

page_text: According to our invention, we provide the sley of the loom with guards built
up of thin strips, accurately spaced apart, and formed with hooked ends or
channels with which engage spindles or parts carried by the shuttle. These
guards are arranged and secured against the face of the reed so that when the
shuttle is shot the spindles or parts carried by the shuttle slide between the hooked
ends of the guard and the surface of the reed.
Our invention will be more clearly understood from the following description
when read in conjunction with the annexed sheet of drawings.
In the said drawings.
Fig. 1 is a diagrammatic front elevation of the lay or batten of a loom pro-
vided with our improved shuttle guards, the fig. also showing a form of shuttle
designed for use with such guards.
Fig. 2 is a sectional view on the line A B Fig. 1, the reed which is omitted
from the first fig. for sake of clearness, being shown in this view.
Fig. 3 is a sectional view of the shuttle box taken on the line C D Fig. 1.
Fig. 4 shows a side elevation of a form of metallic shuttle provided with parts
to engage our improved guards.
Fig. 5 is an end elevation of Fig. 4.
The remaining figs. refer to modifications in the details of our invention and will
be hereinafter dealt with.
In carrying our invention into effect we construct our improved guard G by
stringing together a number of thin steel punchings a formed with hooked or
curved ends as clearly illustrated in Fig. 2. These metallic punchings a are cut
out so as to engage à bar or rod b, and are accurately spaced apart by packing
pieces or strips c, the thickness of the packing pieces regulating the pitch of the
hooked discs a as will be well understood.
The hooked discs or punchings a having been arranged upon the bar b,
together with the intervening packing pieces C, the strip or bar d
is next forced into position and rivetted through to the bar b, so.
as to permanently secure the parts together, and complete
the requi-
site length of guard G. The complete guards SO formed, are next
secured at the top and bottom of and against the face of the reed e by means
of bolts, rivets, plates or the like. In Fig. 1, the extended ends of the parts b d
are shown engaging staples f, the length of guard being pressed against the reed
by means of plates and screws g.
Instead of producing the guard G in the manner above indicated, we may form
each punching a with an aperture and string such punchings upon a bar or rod b,
the parts a being separated by spacing washers c. This construction is indicated
in Figs. 6 and 7.
To work in conjunction with our improved guards we employ a shuttle pro-
vided at its back with spindles or guides designed to engage the channels existing
between the face of the reed and the hooked ends of the guards G.
A shuttle of this type is indicated in Figs. 1, 4, and 5 of the drawings hereto,
the shuttle being built up from strips of metal, rivetted or otherwise secured
together, the outline of the shuttle being clearly shown in the drawings. To form
the guides h, which engage the channels in the guards, we may bend over the
extended sides of the strip or strips forming the base of the shuttle S into a curved
form, so as to constitute a hollow spindle as clearly indicated in Figs. 4 and 5.
Each end of each hollow spindle is provided with a tip h¹ tapering to a point so
as to allow of easy access to the guards.
The shuttle boxes at each end of the reed are formed from flat plates i having
curved ends which curved ends accommodate the guides or spindles h when the
shuttle enters the box.
The shuttle is thrown from box to box by means of a suitable picker j acting
upon the ends s¹ of the shuttle, the shuttle boxes being each provided with a
suitable number of parts & equivalent to the usual swells for boxing the shuttle
and actuating the stop rod. To allow of a ready removal of the shuttle, the halves i
k
4

page_text: of the box may be hinged at as indicated in Fig. 3 of the drawings. In order
to allow of weft being supplied to the shuttle with facility we may employ the
construction of parts indicated in Figs. 9 and 10. In this case the tongue is
formed with a head adapted to drop into a similarly shaped recess formed in
the part m of the shuttle, the T head of the tongue being secured by a snap
cover R.
Instead of making the guides attached to the shuttle circular in cross section
they may be of triangular or other suitable section, the dents a composing the
guard in this case being so formed as to present a similar shape of channel.
Such an arrangement is indicated in Fig. 8. It will also be obvious that the
channels in the boxes will require to correspond with the formation of the guides
on the shuttle.
In using our invention with a drop or circular box loom such sliding or revolv-
ing boxes are provided with covers arranged to engage the guides h formed on
the shuttle s as will be readily understood.
Thus
When our invention is applied to a loom, the warp threads work through the
dents of the guards and reed when the loom sheds, leaving the channels formed
between the guards and reed open for the reception of the guides on the shuttle,
so that the shuttle is held and guided across the entire width of the reed.
it is impossible for the shuttle to fly out or to damage the warp threads. The
points on the guides clear a passage through the shed for the body of the
shuttle as the same passes through the guards. The shuttle may if desired taper
slightly from back to front in order to facilitate passage through the open shed.
In some cases the guards G may be made with the reed.
We might employ a single guard secured at the top of the reed, the lower part
of the shuttle being provided with wheels so as to reduce friction.
In this case such wheels would run upon a suitable guide.
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) In looms for weaving the employment of shuttle guards arranged against
the reed such guards providing channels within which slide guides or parts
carried by the shuttle substantially as hereinbefore described and shown.
2) A loom shuttle formed with guides, spindles, or parts which engage
channels formed by guards secured to the reed space of the loom substantially as
described and shown.
3) The general arrangement construction and combination of parts comprising
the hereinbefore described improvements in loom shuttle guards and shuttles
substantially as hereinbefore described and shown.
Data: 11
T
1000