Improvements relating to Revolving Shuttles in Sewing Machines.
Year: 1887

page_text: Date of Application, 6th April. 1887
Complete Left, 21st Dec., 1887
Complete Accepted, 27th Jan.. 1888
PROVISIONAL SPECIFICATION.
Improvements relating to Revolving Shuttles in Sewing Machines.
I, REGINALD HADDAN, of the firm of Herbert & Co., Patent Agents, of 67
Strand, London, in the County of Middlesex, Civil Engineer, do hereby declare
the nature of this invention, a communication to me from abroad by Felix Engel,
of Hamburg, in the Empire of Germany, Engineer, to be as follows:-
Revolving shuttles have usually hitherto been carried in the framing of sewing
machines by means of a projecting rim on the shuttle lying and revolving in an
annular recess, in which the said rim is held by means of a covering ring or plate
screwed onto the frame of the machine. With this construction, the shuttle set in
rotation by the driver presses against the inner rim of the notch, and is thereby
irregularly worn, becomes loose in the recess and soon loses its quiet and secure
travel. To improve the travel, a new recessed block body and shuttle are required.
This inconvenience is removed by the hereafter described invention which consists in
means for enabling the track of the shuttle rim to be adjusted for the wear of the
latter. The improved arrangement consists in guiding the rim of the shuttle in the
frame between two annular surfaces in place of in a recess with cover plate as bereto-
fore, the central journalling of the shuttle being ensured by supporting the latter in
a case or basket or between arms or fingers secured to the driver or to the arbor
thereof. As the driver and the shuttle rotate together, any friction on the outer
wall of the shuttle is avoided and such friction as occurs on the side walls of the
shuttle is easily compensated by adjustment of the annular surfaces, between which
the rim of the shuttle revolves.
L
Cl 1
C
. 3007
HERBERT & Co.,
67, Strand, W.C.,
Agents to Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements relating to Revolving Shuttles in Sewing Machines.
1, REGINALD HADDAN of the firm of Herbert & Co. Patent Agents formerly of
67 Strand W.C. now of 18 Buckingham Street Strand W.C. London in the
County of Middlesex Civil Engineer do hereby declare the nature of this invention
a communication to me from abroad by Felix Engel of Hamburg in the Empire of
Germany Engineer and in what manner the same is to be performed to be particu-
larly described and ascertained in and by the following statement :-
Revolving shuttles have generally hitherto been carried in the framing of sewing
machines by means of a projecting rim on the shuttle lying and revolving in an
annular recess the said rim being retained in the recess by a covering plate or ring
screwed on to the frame of the machine.
In this construction the shuttle or the rim thereof, set in rotation by the driver
presses irregularly upon the wall of the said recess and is thereby worn irregularly
becomes loose in the recess and loses its quiet and secure travel.
The purpose of the present improvements is to avoid the inconvenience above
described. For this object the rim of the shuttle is guided in the frame between
two annular surfaces capable of adjustment to and from each other, in place of in a
groove as heretofore, the central journalling of the shuttle being ensured by supporting
the same in a case or basket or between arms or fingers secured to the driver or to
the shaft thereof. As the driver and the shuttle rotate together any friction on the
outer wall of the shuttle is avoided and such friction as occurs on the side wall or
on the sides of the rim of the shuttle is easily compensated by adjustment of the
annular surfaces between which the rim of the shuttle revolves.
Figs. 1 to 6 of the accompanying drawings illustrate the invention.
Fig. 1 being an end view of the shuttle and parts in relation to the same.
Fig. 2a plan view of the shuttle and driver with shuttle guides and part of the
framing of the machine in section.
Fig. 3 an horizontal section of the whole.
Fig. 4 a front view of the shuttle and driver with other parts in section.
Fig. 5 an end view of part of the framing with shuttle carrier therein, the shuttle
and outer guide plate being removed.
Fig. 6 illustrates in sectional plan the mode hitherto employed for guiding the
shuttle.
In the latter the shuttle S is held with its rim in the recess a formed in the face of
the frame, by the ring e firmly screwed down on the face of the frame.
In the improved mode of mounting the shuttle S, the rim of the latter is held
between the face m of the frame and the ring o. The latter is connected to the
face m by screws p engaging into the frame and the faces m and o are held
normally apart by springs of convenient material. The driver is contrived in
one part with the basket and the latter receives the shuttle S and holds it centrally
in the frame. As the shuttle revolves with the driver and basket, no friction on the

page_text: basket or shuttle body or on the outer edge of the shuttle rim is possible, the only
friction being on the sides of the shuttle rim and this being equal on all parts of
the revolution of the shuttle, wear caused thereby can be compensated by approaching
the plate o on to the surface m by means of the screws p.
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 ;-
In revolving shuttles.
1. The combination with a shuttle supported to revolve upon its axis, and having
a rim, of two surfaces adjustable to and from each other for the guiding of
said rim.
2. The combination with a shuttle having a rim and two guide surfaces for the
lateral guiding of said rim, of a combined basket or holder and driver for said
shuttle substantially as set forth.
REGINALD HADDAN.
By Herbert & Co.,
Agents to Applicant.