Improvements in Loom Shuttles.
Year: 1890

page_text: Date of Application, 20th Dec., 1890
Complete Specification Left, 3rd July, 1891-Accepted, 8th Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in Loom Shuttles.
I JAMES WADDINGTON Holme Top Mills Little Horton Bradford in the
County of York Shuttle Maker do hereby declare the nature of this invention
to be as follows:-
My invention relates to improvements in loom shuttles combining what are
generally termed loose or interchangeable tongues for holding the bobbin or spool
during the process of weaving.
And consists firstly in constructing that part of the tongue which is to be secured
in the tongue head so that the tongue may be inserted into the head in any
position and may be locked and held firmly in whatever position the tongue may
have turned.
Secondly, in constructing a metal rest block having very large bearing surface
for the tongue to rest upon and also so constructed that the tongue is securely held
and prevented moving endwise when the tongue head is forced down into its proper
position by a spring specially provided for the purpose and operating on the upper
or top part of the tongue head.
Thirdly, in securing the metal rest block in such a manner that the shuttle is
considerably strengthened and its liability to split or crack greatly reduced.
To effect my object I construct the tongue head so that it shall have two
cylindrical holes for holding or supporting the tongue.
One at the front end and the other at the back end the hole at the back end of
the tongue head does not go through but is left so that the end of the hole acts as
a butt or stop for the tongue end to bear against when inserted into the cylindrical
holes.
Between the said cylindrical holes I provide a space in the tongue head sufficient
to receive the metal rest block before mentioned.
This rest block is constructed so that it shall have a half round grove running
longitudinally along its upper surface.
In any suitable part of the said half round grove I provide projections or collars.
(I do not confine myself to any specific number).
These projections or collars enter corresponding annular groves formed on that
part of the tongue which bears on the metal rest block on the tongue head
being forced down to its proper position after a bobbin or spool has been
replaced.
That part of the tongue occupying the space between the before named cylindrical
holes in the tongue head is intercepted by the said half round grove and the said
projections or collars.
The tongue being thus most rigidly held in its working position and prevented
from moving either lengthwise or sideways.
At the same time offering a very great bearing surface operating against the
tongue becoming too low from excessive wear.
To secure the said rest block in the shuttle I fix rivets right through both the
shuttle and the rest block adding both strength to the shuttle and at the same time
rigidly securing the metal rest block inside the shuttle.
On the upper side of the front end of the tongue head I provide a notch.
This notch on the tongue head being raised for the purpose of replacing a
bobbin or spool engages with a lip or bend at the front end of the holding down
spring.
On the lip of the spring entering the said notch the tongue head is securely held

page_text: up so that the tongue is clear of the rest block and can be freely taken out and
replaced.
The tongue head is secured in the shuttle by a pin which passes through the
hind part of the head.
After what I have described it will readily be seen that my invention dispenses
entirely with both rest pins and transverse half round groves being cut in the
tongue.
These half round groves considerably weakens the tongues and causes frequent
breakages at the groved part.
Dated this 19th day of December 1890.
COMPLETE SPECIFICATION.
Improvements in Loom Shuttles.
I, JAMES WADDINGTON, of Holme Top Mills, Little Horton Bradford, in the
County of York Shuttle Maker, 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 :-
My invention relates to certain improvements in loom shuttles, and has for its
object, the construction of loose or interchangeable tongues for holding the bobbin
or spool during the process of weaving in such a manner that the portion of the
tongue by which it is secured, is so constructed that it may be inserted into the
head and firmly secured in any position, also by so constructing the rest block that,
a large bearing surface is obtained and the tongue prevented moving endwise when
inserted and held in position for weaving, and to secure the rest block.so-that-the-
shuttle is considerably stronger and less liable to crack or split.
In explaining my invention in detail, reference is made to the accompanying
sheet of drawings in which Fig. 1. represents a view of a shuttle partly in section
constructed according to my invention.
Fig. 2. is a similar view with the shuttle tongue raised and held in the position
for changing the bobbin or spool.
Fig. 3. is a sectional detail of the tongue rest and tongue head' with' the' tongue
placed therein and
Fig. 4. an-enlarged-transverse sectional view of the tongue rest.
In carrying my object into effect I construct a tongue head A. with two arms A¹
and A² the latter having a hole bored through same for the reception of pin B: by
which it is attached to the shuttle block C. A hole is bored through' arm A" and
partly into arm A² the end being left solid for giving support to the tongue D.
when inserted into the holes of the tongue head A.
Between the said arms is a recess of sufficient length to receive the rest block E.
secured to the shuttle block C. by two rivets passing through holes shown' therein
and the shuttle block. The upper surface of the rest block E. is' grooved to fit the
curve of the shuttle tongue, and is also provided with raised curved' projections to
fit into the corresponding annular grooves formed in the tongue.
When changing a bobbin or spool, the tongue head A is held in the position
shown by Fig. 2. by spring F. engaging with a recess cut in the former, and when
placed in the position shown by Fig. 1. the tongue D. is securely held by the
pressure of spring F. acting on the upper surface of tongue head A. the tongue
engaging in the groove of rest block E. and the projections fitting into the before
named annular grooves rigidly hold the tongue in its working position; the
aforesaid annular grooves preventing it moving either in a longitudinal' or lateral
direction.
By constructing the tongue rest block E. in the manner described; a large bearing
surface operating against the liability of the tongue, wearing or getting lower'tlian
will allow of the free delivery of the weft is obtained; and by securing the said

page_text: block E. to the shuttle by two rivets passing through both shuttle and rest block,
strength is added to the shuttle, and the rest block rigidly secured inside the
shuttle.
By cutting annular grooves in the tongue D. and combining therewith a rest
plate E. as described, it is not necessary that one particular part of the tongue
when inserted into the tongue head A. should be selected to appear at the bottom
side of the tongue head, as is the case when semicircular grooves are cut and rest
pins utilized as is now the common practice, the construction of the tongue head
and rest plate admitting annular grooves to be cut in the tongue, thereby allowing
it to be inserted without special reference to what portion of the circumference of
the tongue appears at the bottom.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
-
1. A shuttle block with which is combined a tongue head A. a tongue D. and
rest block E. constructed substantially in the manner described and as illustrated
by the accompanying drawings.
2. A shuttle tongue rest block E. having projections to engage with corresponding
annular grooves in tongue D. for the purpose as hereinbefore set forth.
•
Dated this 1st day of July 1891.
JOHN WAUGH,
Agent.