Year: 1886

page_text: I, ELIAS LEAK, of Trenton in the county of Mercer and State of New Jersey,
United States of America, gentleman, 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 :-
Spinning rings as heretofore used have been constructed of metal (steel) or
porcelain. These materials have their disadvantages, the metal ring requiring.
oiling and consequent soiling of the yarn, and the porcelain rings varying so much
in size as to require a soft metal band to fit them to their seats.
Being aware of these disadvantages, manufacturers have attempted to substitute
glass, but have signally failed in making a cheap and efficient ring.
To make it possible to form a spinning ring of glass and to obviate the objections
above stated, is the object of this invention, the device employed and the manner
in which said objections are obviated, being set forth in the following description,
reference therein being had to the annexed drawings, in which:-
Figure 1 represents a perspective view of the improved spinning ring.
Figure 2 a vertical cross section of the same, and Figure 3, a similar section of
the ring as removed from the mould before the bottom is ground off.
The form of the.rings is as follows:-
The outer face of the body of the ring is provided with a shoulder A and the
upper edge has formed on it, a single exterior race B.
The shoulder A extends upward to the race B and projects somewhat over the
lower portion C of the ring. When in the frame the ring is supported by the said
shoulder A, the part C resting within the said frame. The interior of the ring
extends perpendicularly from the bottom to near the top, ending in a shoulder Ď
from which the interior extends perpendicularly to the top.
The shoulder D has two objects one, is to give strength to the ring, and the other
is to form a device by means of which the ring may be fastened in the ring frame.
This fastening device may be a spring clamp secured upon the underside of the
ring frame so as to engage with the notches E cut in the shoulder D, or it may be
any simple device or well known fastening.
The ring frame is that used in all machines, where spinning rings are used, and
is old and common to the trade.
In Figure 3 an integral bottom F is shown with a channel or depression G
surrounding it and interior to the body of the ring. This extra glass so fills the

page_text: bottom of the mould as to cause the race and shoulders to be well filled with the
molten material when the die descends.
The purpose of forming the spinning ring as shown, is to permit the use of a
solid matrix, that is, one without division or seam, and of a solid plunger or die.
The form of the ring permits the withdrawal of the die, and the removal of the
said ring from the matrix.
It is absolutely necessary in order to practically mould the ring that there should
be no projections in the line of the withdrawal of either the die or ring which is
the case when an interior race is employed.
While it may be possible by means of a section die and matrix, to form such a
ring, there will be ribs on the same corresponding to the joints of the mould and
the traveller will catch and jump thereon often causing the yarn to break and
being otherwise objectionable.
In order that a spinning ring may be used, it must have a smooth surface,
without ribs or indentations in the line of the traveller.
The glass rings have less friction and will not rust nor need oiling as do the
metal ones, while they may be made of uniform size and not vary as do porcelain
rings and hence need no fitting band of soft metal.
In the case of both metal and porcelain, the rings are turned on a lathe in order
to form the races, one interior and one exterior similar in form to a T.
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 :-
1st As an improved article of manufacture, a spinning ring moulded from glass,
and without seam or obstruction in the line of the passage of the traveller, sub-
stantially as and for the purpose specified.
2nd As an improved article of manufacture, a spinning ring moulded from glass
and provided with a single race for the traveller, substantially as and for the
purpose specified.
3rd A spinning ring having a single exterior race on the upper edge, a shoulder
below the same, and an interior shoulder, the said ring being moulded from glass,
substantially as and for the purpose specified.
Dated this 4th day of June 1886