Improvements in Oscillating Shuttles and Shuttle Races for Sewing Machines.
Year: 1886

page_text: Date of Application, 20th Oct., 1886.
Complete Left, 15th July, 1887.
Complete Accepted, 16th Aug., 1887.
Improvements in Oscillating Shuttles and Shuttle Races for
Sewing Machines.
We, JOHN MORTON, and WILLIAM URIE MORTON, of 11 Bothwell Circus, Glasgow,
in the County of Lanark, North Britain, Sewing Machine Manufacturers, do hereby
declare the nature of this Invention to be as follows, that is to say :-
Our said Invention relates to oscillating shuttles and shuttle races of or similar to
the kind described in our patent specification No. 8492 of 1885, and has for its object.
to further improve the same.
In carrying out our present Invention the ring for securing the spool in the shuttle
is itself secured by means of a pin on one side of it which enters a hole in the socket
or recess in the shuttle, whilst on the other side there is a shallow groove which
engages with a curved spring wire fixed in the other side of the shuttle this wire
being momentarily pressed aside when the ring is being put into or taken out of its
place. An improved tension device is applied on a flange or projection on one side of
the shuttle this device consisting of a small spring plate held by a screw, the thread
passing between it and the flange at one side of the screw, whilst a part of the plate
at the other side of the screw is pressed on by a small helical spring placed in a socket
in the flange. This spring by pressing outwards one end of the plate makes the
other tend inwards and so press the thread, whilst the pressure can be adjusted by
the screw.
race,
Another improvement consists in making the shuttle and shuttle race of different
materials such that lubrication by oil will not be required and the risk of soiling the
thread or the work will thereby be diminished. One part, the shuttle, or the is
made of metal, and the other part, the race or the shuttle is made of or lined with
ebonite or other suitable vulcanised compound, or of ivory, bone, or horn or of
xylonite or artificial ivory, or of graphite, or plumbago, or of buffalo hide or other
hardened hide or skin or of any suitable analagous substance.
Dated this Nineteenth day of October 1886.
EDMUND HUNT,
Applicants' Agent.

page_text: Improvements in Oscillating Shuttles and Shuttle Races for
Sewing Machines.
We, JOHN MORTON, and WILLIAM URIE MORTON, of 11 Bothwell Circus, Glasgow,
in the County of Lanark, North Britain, Sewing Machine Manufacturers, 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, that is to say :-
Our said Invention relates to oscillating shuttles and shuttle races of or similar to
the kind described in our patent specification No. 8492 of 1885, and has for its object.
to further improve the same.
Oscillating shuttles as made with our improvements are shown on an accompanying
sheet of explanatory drawings, figures, 1, to 5, representing one modification and
figures, 6, to 8, a second. In these drawings the same reference numerals are used
to mark the same or like parts wherever they are repeated.
Figure, 1, is a front elevation of the shuttle with the spool and retaining ring in
position; and figure, 2, is a section as at right angles to figure, 1. Figure, 3,
represents the shuttle without the retaining ring and spool; and figures, 4, and 5, are
an inner-side elevation and a corresponding edge view of the retaining ring. The
ring, 10, for retaining the spool, 11, in the shuttle, 12, is formed with a stud, 13,
which is entered into an eye or socket in the shuttle; and the retaining ring is secured
by means of a small pin, 14, fixed in the side of the groove formed in the shuttle to
receive the ring, a small hole in the ring being placed on the pin when inserting the
ring with the spool in it. On the other side of the retaining ring, 10, a shallow
groove is formed which engages with a curved spring wire, 15, fixed in a slot on the
other side of the shuttle, 12, this wire being momentarily pressed aside when the
retaining ring is being put into or taken out of its place. An improved tension
device is applied on a flange or projection, 16, on one side of the retaining ring, 10,
this device consisting of a small spring plate, 17, held by a screw, 18, and guided by
a steady pin, 19. The thread issues from the spool through a slot, 20, in the
cylindrical flange of the retaining ring, 10, and passes between the spring plate 17,
and the flange, 16, the spring plate, 17, being made to press on the thread by means
of a small helical spring, 21, acting outwards on the other end of the spring plate.
The helical spring, 21, is held in a socket formed for it in the flange, 16, and the
pressure is adjusted by turning the screw, 18, so as to hold the spring plate, 17, at a
less or greater distance from the flange, 16.
The second modification is shown in back elevation in figure, 6, and in section in
figure, 7, whilst figure, 8, is a front elevation, partly in section, of the shuttle with the
retaining ring and spool removed. For securing the retaining ring, 10, in the
shuttle, 12, a rib-like projection, 22, is formed on one side of the ring, and an
indentation to receive this projection is formed in the groove in the shuttle, 12. On

page_text: the other side a small spring latch, 23, is fitted to the shuttle, 12, and its catching
part engages in a notch or groove formed in the side of the retaining ring, 10. This
device holds the retaining ring securely and so that it cannot be displaced by pressure
on it without freeing the latch, 23, by pressing in its outer end. In order to prevent
displacement of the spool, 11, from the retaining ring, 10, whilst placing those parts
in the shuttle or removing them therefrom, a blade, 24, is swivel-jointed upon the
stud, 13, of the retaining ring, 10, this blade being turned to one side when removing
or replacing the spool. slot, 25, is formed in the shuttle, 12, to allow of the passage
of the blade, 24, when removing or replacing the retaining ring.
Another improvement consists in making the shuttle and shuttle race of different
materials such that lubrication by oil will not be required, and the risk of soiling the
thread or the work will thereby be diminished. One part, the shuttle, or the race, is
made of metal; and the other part, the race, or the shuttle is made of or lined with
ebonite or other suitable vulcanised compound, or of ivory, bone, or horn, or of
xylonite or artificial ivory, or of graphite, or plumbago, or of buffalo hide or other
hardened hide or skin, or of any suitable analogous substance.
Having now particularly described and ascertained the nature of our said Invention
and in what manner the same is to be performed, we declare that what we claim is :-
1-Constructing oscillating shuttles of sewing machines with improved devices
substantially such as are herein before described for securing the spool-retaining ring
in the shuttle.
2-Constructing oscillating shuttles of sewing machines with improved tension
devices substantially such as is hereinbefore described.
3-Constructing oscillating shuttles and shuttle races of sewing machines of
different materials substantially as and for the purposes hereinbefore described.
Dated this Fourteenth day of July 1887.
EDMUND HUNT,
Applicants' Agent.