An Improved Shuttle Guard for Looms.
Year: 1893

page_text: Date of Application, 12th June, 1893
Complete Specification Left, 12th Mar., 1894-Accepted, 14th Apr., 1894
PROVISIONAL SPECIFICATION.
An Improved Shuttle Guard for Looms.
We, DANIEL BATEMAN and JAMES OGDEN, of Holme Top Mill, Bradford,
Yorkshire, Manufacturers, and CHARLES BEDFORD, of 63, Alexandra Road,
Shipley, near Bradford, aforesaid, Machinist, do hereby declare the nature of this
invention to be as follows:-
"
Our invention consists in constructing and arranging a shuttle guard to be placed
in front of the reeds or slay in looms for the purpose of preventing the shuttle from
flying out of the loom or shuttle race. According to our invention we attach a
suitable number of brackets in front of the hand rail of the loom. These brackets
carry studs on which is free to oscillate a suitable form of finger or lever, to the
lower end of which is a horizontal bar extending the full width of the hand rail.
When this horizontal bar is down or in one position the shuttle cannot fly out from
the shed or loom, but the horizontal bar for convenience to the weaver can be
moved out of the way by the hand of the weaver or by a horizontal finger acted
upon by the belt shifting mechanism every time the loom is stopped by the belt
shifting mechanism, but on the loom being re-started the movement of the "going
part will jerk the horizontal shuttle guard from its upward position to its
downward position where it at once becomes a shuttle guard. The upper ends of
the oscillating fingers which carries the shuttle guard is provided with a projection
the top of which is concentric or nearly so with the stud on which it turns
when the shuttle guard is in position for preventing the flying out of the shuttle.
One side or edge of this projection rests upon the bracket carrying the stud on
which this finger or lever oscillates and it is held there by means of a flat steel or
other spring pressing upon the other side or edge of this projection. When the
shuttle guard is moved out of the way by either the weaver or the belt shifting
mechanism, the flat steel or other spring presses upon the concentric part of the
projection and so holds the shuttle guard in the position it has been moved to until
the loom is started when the jerk at the beat up brings it into its normal or
working position, so that the shuttle guard is maintained in a firm position whether
down or up.
By means of our invention the shuttle guard is positive and reliable, cheap in
construction and can be operated at the will of the weaver or otherwise by the
action of the belt shifting mechanism.
Dated this 10th day of June 1893.
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
An Improved Shuttle Guard for Looms.
We, DANIEL BATEMAN, and JAMES OGDEN, of Holme Top Mill, Bradford,
Yorkshire, Manufacturers, and CHARLES BEDFORD, of 63, Alexandra Road,
Shipley, near Bradford, aforesaid, Machinist, do hereby declare the nature of this
invention and in what mauner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
Our invention consists in constructing and arranging a shuttle guard to be placed
in front of the reed and attached to the hand rail in looms for the purpose of
preventing the shuttle flying out of the loom or from the shuttle race.

page_text: Such being the nature and object of our invention we will now proceed to
describe the same more fully, and for that purpose make reference to the accom-
panying sheets of drawings illustrative thereof, wherein :-
Fig. 1 represents a cross section of the hand rail and slay board with our
improvements applied thereto, and Fig. 2 is a front elevation of same.
A represents the hand rail, B the slay-board, C the reed, and D the shuttle.
E represents our shuttle guard which comprises a horizontal metal bar the length
of which is equal or nearly equal to the length of the reed. This bar E is secured
to brackets or fingers F mounted upon studs G projecting from brackets H secured
to the hand rail by screws I, the said fingers F being free to oscillate upon their
respective studs. The shuttle guard in full line in the drawings shews the position
it occupies when in use or in its guarding position and would prevent the shuttle
from flying out, but when the weaver requires to find broken ends he or she pushes
the shuttle guard into the position shewn in dotted lines Fig. 1 so that it forms no
impediment to the operation of the weaver. When the loom is next set on, the
momentum of the "going part" jerks or throws the shuttle guard into the guarding
position shewn in full lines.
An important feature of our invention consists in the method of holding the
shuttle guard rigid in both positions whether it be open or closed, and this is done
in the following manner :-
On the upper end of the central finger F is formed a concentric surface S and a
notch or knuckle N, a flat spring or elastic bar J being also employed the free end
of which presses on the knuckle N when the shuttle guard is in its acting or
guarding position, such flat spring holding the shuttle guard rigid by pressing the
upper part of the finger F against the bracket H, but when the weaver puts the
shuttle guard into position shewn in dotted line the free end of the flat spring is
pressing upon the concentric part of the finger F and holding it in that position
until the first beat up of the slay when the momentum of the "going part" throws
the shuttle guard open and places the knuckle N of the finger F underneath the
free end of the spring J whereby it is held firmly in its guarding position.
Upon the concentric surface S of the finger F is a flange T which projects above
the spring J and so prevents the finger F from slipping off its stud G, but instead
of using the flange T, the concentric part of the finger may be conical for the
spring to rest upon it, which would prevent lateral movement of the finger.
Instead of the finger J being fixed to the bracket H as already described and
shewn in Figs. and 2, the spring J may be attached to the finger F and made to
press upon a concentric surface S together with a knuckle or notch N formed upon
the bracket H as shewn in Figs. 3 and 4, in this case the spring J is attached to a
lug R projecting from the finger F.
By means of our invention a shuttle guard positive and reliable is produced
cheap in construction, and perfectly automatic in its action and requires little
attention on the part of the weaver.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:-
In a loom shuttle guard having arms F working upon centres or studs and put
into position by the throw of the "going part," such arm F having a concentric
surface and knuckle or notch N in combination with a spring or elastic bar J,
constructed in the manner substantially as described and operated as set forth.
1
· 1004
TASKER & CROSSLEY,
Halifax, Agents.