IMPROVEMENTS IN LOOM SHUTTLES
Year: 1885

page_text: I EDWARD BOOTH of 57 Sussex Street, Lower Broughton, Manchester in the
County of Lancaster Manufacturer do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN LOOM SHUTTLES" to be as follows:-
My Invention relates to the shuttles employed in looms for weaving and has for
its principal object to lessen the tendency of the cop to break which tendency.
arises from the blow of the picker upon the shuttle end. An invention for which.
Letters Patent numbered 2310 of the year 1874 were granted to me in conjunction
with another had the same object but the shuttles constructed in accordance with
such former invention were defective owing partly to the shuttle 'not being well
adapted to withstand wear and tear. In my present Invention I form the joint
end of the skewer with a slot or chamber which is sufficiently large to contain a
spiral buffer spring or a spring of suitable formation and also a block which slides.
in the said slot. The spring is inserted between the said block and the rear end of.
the slot which latter is enclosed on four sides by the metal of the skewer shank
instead of being open at one end as in the former invention. The hinge pin passes
through the said block. I prefer to use a spring of a volute form made by coiling
a riband of steel. When the skewer yields to the blow of the picker the skewer-
shank slides upon the hinge block and compresses the spring, and by so yielding
lessens the tendency of the cop to break. In place of the ordinary spring which
keeps the skewer in its working position I prefer to use a spring which is bent into:
such a form as that one limb can be secured by means of a screw or by suitable
means to the end of the slot in the shuttle the other limb being bent at right
angles or thereabouts to the first named limb and pressing upon the face of the.
skewer shank which is uppermost when the shuttle is at work. In some cases
I use the spring so formed and applied when not using the buffer spring as I am
thereby enabled to dispense with the ordinary pins or wires which are used to
keep the ordinary spring in position and to limit the movements of the skewer.
11007

page_text: I EDWARD BOOTH of 57 Sussex Street, Lower Broughton, Manchester in the
County of Lancaster Manufacturer do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN LOOM SHUTTLES" 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:―
My Invention relates to the shuttles employed in looms for weaving and has for
its principal object to lessen the tendency of the cop to break which tendency
arises from the blow of the picker upon the shuttle end. An invention for which
Letters Patent numbered 2310 of the year 1874 were granted to me in conjunction
with another had the same object but the shuttles constructed in accordance with
Buch former invention were defective owing partly to the shuttle not being well
adapted to withstand wear and tear. In my present Invention I form the butt or
joint end of the skewer with a slot or chamber which is sufficiently large to
contain a spiral buffer spring or a spring of suitable formation and also a block
which slides in the said alot. The spring is inserted between the said block and
the rear end of the slot which latter is enclosed on four sides by the metal of the
skewer shank instead of being open at one end as in the former invention. The
hinge pin passes through the said block. In place of the ordinary spring which
keeps the skewer in its working position I prefer to use a spring which is bent
into such a form as that one limb can be secured by means of a screw or by
suitable means to the end of the slot in the shuttle the other limb being bent at
right angles or thereabouts to the first named limb and pressing upon the face of
the butt of the skewer shank which is uppermost when the shuttle is at work.
In some cases I use the spring so formed and applied when not using the buffer
spring.
In the accompanying drawings Fig. 1 represents a longitudinal section and Fig. 2
a plan view of a shuttle fitted in accordance with my invention Fig. 3 is a
longitudinal section of a shuttle provided with my improved spring. Figs. 4 and 5
are detached views of shuttle skewers formed in accordance with my invention.
In Figs. 1 and 2 a is the shuttle skewer which is of the same formation as the
example illustrated by Fig. 4. Another form of skewer which I may use is
indicated by Fig. 5. The butt end a¹ of the said skewer is formed with a slot or
chamber which is of a size and form suitable to contain a hinge block b. and a
spring c. The usual joint pin d. passes through the block b. The spring c. is of a
volute shape and is made by coiling a riband of steel into the required form. I do
not however confine myself to the form of spring and may use an ordinary spiral
spring such as is represented in Fig. 4 or any suitable form of spring. One end of
the spring. c. abuts against one end of the slot in the part a¹ the other end of the
spring bearing against the block b and tending to keep it in contact with the other
end of the slot. When the skewer yields to the blow of the picker during the
working of the loom the butt end a¹ slides upon the hinge block b. and compresses
the spring and by so yielding lessens the tendency of the cop to break. The
skewer is kept in its working position by means of a spring e. which is formed of

page_text: steel plate or riband bent into a right angular form or thereabout so that one limb
can be secured by means of a screw f. to the shuttle body the other limb pressing
upon the butt of the skewer and checking any tendency of the latter to turn upon
its hinge. Fig. 3 illustrates the application of this spring to a shuttle which is not
provided with the hinge block b. and the buffer spring c. The spring e. formed
and applied in the indicated manner enables me to dispense with the ordinary pins
or wires which are used to keep the ordinary spring in position and to limit the
movements of the skewer.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1. A shuttle skewer or tongue formed with a slot or chamber in the butt or
joint end in which chamber is a spring and a block through which passes the joint
pin or wire substantially as set forth and indicated herein before and in and by
the accompanying drawings.
2. The shuttle skewer or tongue formed with a slot or chamber in the part a¹ to
receive a binge block b. and a spring c. in combination with the said block and
spring substantially as set forth and iudicated.
3. The spring c. formed and applied as and for the purpose set forth and
indicated.