Year: 1886

page_text: Date of Application, 20th Mar., 1886.
Complete Left, 14th Dec., 1886.
Complete Accepted, 14th Jan., 1887.
I JOHN WILLIAMSON of 13 London Street, Pendleton, in the County of Lancaster,
Manager, do hereby declare the nature of the said invention to be as follows:-
My invention relates to the tongues of the shuttles employed in weaving. As
ordinarily constructed these tongues are in each case provided with a curved spring
which extends from a point near the tip of the tongue nearly or quite to the butt or
block through which the joint pin passes. When the shuttle is at work the length of
the portion of yarn which extends from the cop to the eye in the shuttle gradually.
increases as the cop becomes reduced in length the consequence being that the tension
of the yarn also increases or otherwise varies and the regularity of the weaving is
effected. To remedy this defect is the principal object of my invention. I provide
means whereby the cop is pushed up the tongue as the unwinding proceeds in order
that the distance from the tip of the tongue to the top of the cop may not increase or
may not increase to the same extent as when the ordinary tongue is used. I mount a
spiral spring upon the tongue and I also by preference provide a suitable sliding
sleeve collar or washer against which the spring re-acts. When the cop is pushed
home the spring is compressed. Instead of the ordinary long curved spring I employ
a short spring which extends only a comparatively short distance from the tip of the
tongue, or by preference I provide two such springs. The part of the tongue extend-
ing from these springs to the butt is by preference made of equal diameter throughout
so that the cop and the aforesaid sleeve can slide upon such part. When a portion of
the cop has been unwound so as to partly uncover the tongue springs the spiral spring
commences to push up the cop as it becomes shorter the swell of the springs constituting
the limit of forward movement. An additional advantage arising from the use of my
invention would be that in my opinion there would be less waste caused by breakage
of cop bottoms. I may make an annular groove in the tongue butt to receive the
spiral spring.
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents to the Applicant.

page_text: I JOHN WILLIAMSON of 13 London Street Pendleton, in the County of Lancaster,
Manager, 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:—
My Invention relates to the tongues of the shuttles employed in weaving. As
ordinarily constructed these tongues are in each case provided with a curved spring
which extends from a point near the tip of the tongue nearly or quite to the butt or
block through which the joint pin passes. When the shuttle is at work the length of
the portion of yarn which extends from the cop to the eye in the shuttle gradually
increases as the cop becomes reduced in length the consequence being that the tension
of the yarn also increases or otherwise varies and the regularity of the weaving is
affected. To remedy this defect is the principal object of my invention. I provide
means whereby the cop is pushed up the tongue as the unwinding proceeds in order
that the distance from the tip of the tongue to the top of the cop may not increase or
may not increase to the same extent as when the ordinary tongue is used-I mount a
spiral spring upon the tongue and I also by preference provide a suitable sliding sleeve
collar or washer against which the spring re-acts. When the cop is pushed home the
spring is compressed. Instead of the ordinary long curved spring I employ a short
spring which extends only a comparatively short distance from the tip of the tongue.
In order that my invention may be clearly understood I will more fully describe
the same with reference to the accompanying sheet of drawings wherein Fig. 1.
represents a shuttle tongue formed in accordance with my invention and Fig. 2 is
intended to represent the same tongue as it would appear when in use. The tongue is
provided with a spring a as is usual but it will be seen that it is much shorter than
the ordinary spring and occupies only about half of the length of the tongue. Between
the tip a¹ of the spring and the butt b of the tongue extends a portion of the tongue
which I prefer to make about equal in diameter throughout until the shoulder c at the
butt end is reached-This shoulder may be turned or formed square or be rounded
out as in the drawings as preferred. The tip a¹ of the spring extends into a hole
which is drilled in the tongue in order that yarn may not get below such tip. The
form of spring is such as I have found to give good results in practice but I do not
confine myself to such form nor to the exact proportions of the spring as compared
with the tongue so long as the said spring is made short enough for the purposes of
my invention. If preferred two springs each projecting a shorter distance from the
tongue might be used. Upon the tongue is mounted a spiral spring which appears in
position at d in Fig. 2. One end of this spring abuts against the shoulder c and the
other end presses a sliding sleeve or collar e against the base or inner end of the cop f
The sleeve e may be made of any suitable form and material. In Figs. 3 to 8 examples
are given of some of the forms which this part may assume. In Fig. 2 the said sleeve
is supposed to be a cup-shaped loose collar made of sheet metal stamped pressed or
shaped into any of the forms indicated in Figs. 4 5 and 6 so that when a fresh cop is
supplied the spiral spring can be compressed into the space within such collar. Fig. 7

page_text: illustrates a similar collar which is supposed to be made of hard wood or of moulded
papier maché or other suitable composition or material. Fig. 8 is an example of a
washer formed with a tubular extension so that it can slide easily upon the tongue the
said extension entering the coils of the spring when the latter is compressed. In Fig. 3
à recess g to receive the spring is turned or formed in the butt of the tongue the
sleeve or washer being of a more substantial form than in the other examples. I do
not confine myself to the indicated forms of the parts e. When a fresh cop is applied
upon the tongue the sleeve e is pushed up close to the shoulder the spiral spring
becoming compressed as aforesaid. When a portion of the cop has been unwound by
the ordinary operation of the shuttle so as nearly to uncover the whole of the tongue
spring somewhat as indicated in Fig. 2 the spiral spring commences to push up the
cop in proportion as the latter becomes shorter the swell of the tongue spring con-
stituting the limit of the forward movement so that the tongue is not completely
uncovered so long as any of the cop remains. I consider that the use of my invention
is attended with other advantages as for example I believe that less waste arises from
the breakage of cop bottoms when my invention is used.
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 :—
(1) The shuttle tongue formed and provided substantially as set forth and indicated
hereinbefore and in the accompanying drawings.
(2) A shuttle tongue formed with a short tongue spring or with two short tongue
springs and provided with a spiral spring to push forward the partly spent cop as it
becomes shorter substantially as set forth and indicated.
(3) A shuttle tongue of the formation substantially as indicated in Fig. 1 provided
with a spiral spring d and a part e.
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.