Year: 1887

page_text: Date of Application, 13th Apr., 1887
Complete Left, 13th Jan., 1888
Complete Accepted, 9th Mar., 1888
I, DANIEL JONES, of 27, Great Frederick Street, Cardiff, in the county of
Glamorgan, builder, do hereby declare the nature of this invention to be as follows:--
This invention relates to that class of sewing machines for which Letters Patent
No. 13233, dated October the 6th, 1884, were granted to me, that is to say, wherein
the second or under thread is contained upon a reel carried in a stationary carrier or
contained about which the hook or hooks employed for engaging with the loops of the
upper or needle thread has or have motion.
This invention consists in an improved method of supporting and maintaining in
position the bracket, conveniently termed the inner bracket by which the reel carrier
is at one side kept in its place, and which arrangement enables the use of toothed
gear for transmitting motion from the driving shaft to that carrying the hook or hooks
to be dispensed with. The said inner bracket is, by a binding screw or other suitable
means, secured to the outer end of the spindle which is passed through the hollow
shaft which carries the hook or hooks by which the loops of the needle thread are in
turn engaged. Attached to the inner or rear end of the spindle aforesaid is one end
of a crank the other end of which is furnished with a pin which lies in a recess made
for its reception in the outer end of the driving shaft. Upon the outer end of the
driving shaft, which is eccentric with the hollow shaft aforesaid, is a disc connected
by a link to a disc carried upon the inner end of the said hollow shaft carrying the
hook or hooks.
The latter shaft is driven from the driving shaft the motion being transmitted by the
link connecting the discs aforesaid. The crank and the spindle to which it is attached
remain stationary.
This invention further consists in improvements in the hook or hooks by which the
loops of the needle thread are engaged and extended over the carrier.
By fitting a conical roller in the neck of a hook friction on the thread is reduced
and, by furnishing such conical roller with a collar a stop is provided to retain the
thread so as to facilitate spreading of the loops over the carrier. By means of a
projection provided on the rear end or tail of a hook the thread is prevented from
slipping from the hook before arriving at the most suitable point for such effect.
Dated this 13th day of April 1887.

page_text: Improvements in Lock-stitch Sewing Machines.
I DANIEL JONES of 27 Great Frederick Street, Cardiff, in the county of
Glamorgan, .builder, do hereby declare the nature of this invention, and in what
manner the same is to be performed, to be particularly described and ascertained
n and by the following statement :-
This invention relates to that class of lock-stitch sewing machines for which Letters
patent No. 13233, dated the 6th October 1884, were granted to me, that is to say,
wherein the second or under thread is contained upon a recl carried in a stationary
carrier or container about which the hook or hooks employed for engaging with the
loops of the upper or needle thread has or have motion.
This invention consists in an improved method of supporting and maintaining in
position the bracket, conveniently, termed the inner bracket, by which the reel carrier
is at one side kept in its place, and which arrangement enables the use of toothed gear
for transmitting motion from the driving shaft to that carrying the hook or hooks to
be dispensed with. The said inner bracket is, by a binding screw or other suitable
means, secured to the outer end of the spindle which is passed through the hollow
shaft which carries the hook or hooks by which the loops of the needle thread are in
turn engaged. Attached to the inner or rear end of the spindle aforesaid is one end
of a crank, the other end of which is furnished with a pin which lies in a recess made
for its reception in the outer end of the driving shaft, or the end of the driving shaft
may be turned small to form a pin to fit into a recess made in the angle piece fastened
to or made in one with the small spindle that passes through the hollow shaft. Upon
the outer end of the driving shaft, which is eccentric with the hollow shaft aforesaid,
is a disc connected by a link to a disc carried upon the inner end of the said hollow
shaft carrying the hook or hooks. The latter shaft is driven from the driving shaft
the motion being transmitted by the link connecting the disc aforesaid. The crank
and the spindle to which it is attached remain stationary.
This invention further consists in improvements in the hook or hooks by which the
loops of the needle thread are engaged and extended over the carrier. By fitting a
conical roller in the neck of a hook, friction on the thread is reduced, and by furnishing
such conical roller with a collar a stop is provided to retain the thread so as to facilitate
spreading of the loops over the carrier. By means of a projection provided on the
rear end or tail of a hook the thread is prevented from slipping from the hook before
arriving at the point most suitable for such effect.
Referring to the accompanying sheets of illustrative drawings, Fig. 1 represents a
vertical section. Fig. 2 represents a detached view, driving shaft, discs, connecting
link, hollow shaft, and hook attached thereto. Fig. 3 represents a detached view of
the stationary spindle, constructed in accordance with the method of carrying this
invention into effect.
Upon
The driving shaft is carried in bearings cast in one with the bedplate h.
the driving shaft a is carried a disc b with a pin b¹ fastened thereto connected by the

page_text: с
link c to the pin d, fastened to the disc d¹ which is carried upon the hollow shaft e on
to which the revolving hook is fastened. On the rear end of the spindle o a crank or
angle piece n is formed, a recess is made in the angle-piece n to receive the pin a¹,
turned on the end of the driving shaft a thus forming a crank whereby the spindle o¹
is maintained stationary, on the outer end of which the bracket o¹ is fastened, forming
a support for the reel container q, supported on the outer side by the bracket s which
is kept in position by the spring r, the bracket s is hinged to the arm p fastened to the
bearing f.
Fig. 2 shows the relative position, and the mode of transmitting the motion from the
driving shaft a to the hollow shaft é on to which the hook A is fastened and more
particularly as to the formation of the hook A, which is furnished with a conical
roller g turning on the pivot g¹. The hook at the rear or tail end is furnished with a
projection g² which prevents the cotton from slipping. Fig. 3. shows a detached view
of stationary spindle o with bracket o¹, having at the other end a piece fastened at
right angles to spindle with recess formed to receive the small pin a¹ formed on the
end of the driving shaft a.
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.
I. In a two reel lock-stitch sewing machine the means whereby the bracket o¹
fastened on to the stationary spindle o (for the support of the reel carrier), and passed
through a hollow shaft e, is kept stationary by the formation of an angle-piece or
crank n with a recess to receive the end of the driving shaft, substantially as herein before
described with reference to Figs. 1 and 3 of the accompanying sheet of drawings.
II. The use of a conical roller such as g placed in the neck of the hook to reduce
the friction on the cotton, substantially as set forth with reference to Fig. 2 of the
accompanying sheet of drawings.
Dated this 13th day of January A.D. 1888.