IMPROVEMENTS IN SEWING MACHINES
Year: 1875

page_text: LETTERS PATENT to George Francis Bradbury, of Crumpsall House,
near Manchester, in the County of Lancaster, Gentleman, and
Henry Lomax, of Over Darwen, in the County aforesaid, Sewing
Machine Maker, for the Invention of "IMPROVEMENTS IN SEWING
MACHINES."
PROVISIONAL SPECIFICATION left by the said George Francis
Bradbury and Henry Lomax at the Office of the Commissioners
of Patents, with their Petition, on the 21st July 1875.
We, GEORGE FRANCIS BRADBURY, of Crumpsall House, near Man-
chester, in the County of Lancaster, Gentleman, and HENRY LOMAX, of
Over Darwen, in the County aforesaid, Sewing Machine Maker, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
SEWING MACHINES," to be as follows.―
This Invention relates to improvements in the apparatus employed for
winding thicad on to the shuttle col (technically known as the winder)
and to the use of a contrivance for preventing the shuttle being thrown

page_text: out of its seat during the operating or working of the machine when the
"shuttle coverer
or slide plate is removed.
"
Heretofore "winders" for purpose aforesaid have been constructed in
such manner that on the shuttle reel being placed in position in the
winder the outer portion of the friction bowl was moved against the
side of the driving or balance wheel by means of the spiral spring (on
the outer spindle) forcing the spindle carrying the friction bowl out-
wards, and so bringing the bowl and balance wheel in contact; or the
bracket carrying the bowl, spindles, and spool was moved or turned by
the "operator" on a pin until the bowl and balance wheel were in
contact, whereon the apparatus was there held by means of a catch or
spring until the reel was filled Another plan was tilting the
apparatus over; and-bringing-the bowl-and.driving wheel in contact, a
spring being employed for retaining the two in contact until the required
quantity of thread was wound.
When constructing winders according to this Invention the spindle
carrying the friction bowl is mounted on a standard or bracket, which is
connected with the standard carrying the outer spindle and spring by
mcans of a pivot, or the pivot may be secured to the table or frame of
the machine. On the reel being placed by the operator in the winder
the action of the spring is to move the standard on the pivot, and bring
the friction bowls largest diameter into contact with the rim of the
balance wheel, and this contact continues so long as the spool remains
in the winder, whether the rim of the balance wheel runs truly" or
not, because the standard and bowl are free to move on the pivot, thereby
compensating for irregularities in surface of driving wheel or irregular
rotation thereof, and ensuring contact of the greatest diameter of the
friction bowl with the rim of the balance wheel. A slot hole may be
employed, so as to admit of adjustment of the winder to reels of various
lengths.
se
In securing the shuttle we attach to the rocking arm a finger working
on a pin, the upper end of which finger is cranked so as to extend over
and bear upon the back or end portion of the shuttle. The crank pin or
disc pin for operating the slotted rocking lever bears on or against the
cranked finger referred to, and so ensures its upper end embracing
the end of the shuttle, and holding the same in its seat in the
carriage.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Francis Bradbury and Henry Lomax in
the Great Seal Patent Office on the 21st January 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, GEORGE
FRANCIS BRADBURY, of Crumpsall House, near Manchester, in the
County of Lancaster, Gentleman, and HENRY LOMAX, of Over Darwen,
in the County aforesaid, Sowing Machine Maker, sond greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-first day of July, in the year of
our Lord One thousand cight hundred and seventy-five, in the thirty-
ninth year of Her reign, did, for Пerself, Пer heirs and successors,
give and grant unto us, the said George Francis Bradbury and
Henry Lomax, Her special licence, that we, the said George Francis
Bradbury and Henry Lomax, our executors, administrators, and
assigns, or such others as we, the said George Francis Bradbury and
Henry Lomax, our executors, administrators, and assigns, should
at any time agree with and no others, from time to time and at
all times thereafter during the term therein expressed, should and law-
fully might make, use, exercise, and vend, within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and Isle of Man,
an Invention for "IMPROVEMENTS IN SEWING MACHINES," upon the con-
dition (amongst others) that we, the said George Francis Bradbury
and Henry Lomax, our executors or administrators, by an instrument in
writing under my, or their, or one of their hands and scals, should
particularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same to
be filed in the Great Scal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said George Francis Bradbury and
Henry Lomax, do hereby declare the nature of our said Invention, and
in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement.-
This Invention relates to improvements in the apparatus employed for
winding thread on to the shuttle reel (technically known as the winder),
and to the use of a contrivance for preventing the shuttle being thrown

page_text: out of its scat during the operating or working of the machine when the
"shuttle cover
or slide plate is removed.
"
Heretofore "winders" for the purpose aforesaid have been constructed
in such manner that on the shuttle reel being placed in position in the
winder the outer portion of the friction bowl was moved against the
side of the driving or balance wheel by means of the spiral spring (on
the outer spindle) forcing the spindle carrying the friction bowl out-
wards, and so bringing the bowl and balance wheel in contact, or the
bracket carrying the bowl spindles and spool was moved or turned hy
the "operator
on a pin until the bowl and balance wheel were in
contact, whereon the apparatus was there held by means of a catch or
spring until the recl was filled. Another plan was by tilting the
apparatus over, and bringing the bowl and driving wheel in contact, a
spring being employed for retaining the two in contact until the required
quantity of thread was wound
"
When constructing winders according to this Invention the spindle
carrying the friction bowl is mounted on a standard or bracket, which
is connected with the standard carrying the outer spindle and spring
by means of a pivot, or the pivot may be secured to the table or frame
of the machine.. On the reel being placed by the operator in the
winder the action of the spring is to move the standard on the pivot,
and bring the friction bowl into contact with the rim of the balance wheel,
and this contact continues so long as the spool remains in the winder,
whether the run of the balance wheel runs "truly" or not, because the
standard and howl are free to move on the pivot, thereby compensating
for inequalities in surface of driving wheel or irregular rotation
thereof, and ensuring contact of the greatest diameter of the friction
bowl with the rim of the balance wheel A slot hole may be employed
as to admit of adjustment of the winder to reels of various
lengths.
So
For securing the shuttle we attach to the rocking arm a finger
working on a pin, the upper end of which finger is cranked, so as to
extend over and bear upon the back or end portion of the shuttle The
crank pin or disc pin for operating the slotted locking level bears on or
against the clanked finger referred to, and so ensures its upper end
embracing the end of the shuttle, and holding the same in its seat in
the carriage.

page_text: THE SAILO
may be fully understood we have hereunto annexed a Sheet of Drawings
illustrative thereof.
DESCRIPTION OF THE DRAWINGS
Figs 1, 2, 3, and 4 are elevation and plan views of winders having our
improvements attached; Figs 5 and 6 are elevations of the ordinary
apparatus employed for operating the shuttle, our improved appliance
for securing the shuttle in its scat being applied.
When constructing winders according to this Invention the spindle A
carrying the friction bowl B is mounted on a standard or bracket C,
which is connected with the standard A' carrying the outer spindle d
and spring by means of a pivot D, or the pivot D may be secured to the
table or frame of the machine directly and without the intervention of
the piece on the reel E being placed by the operator in the winder.
The action of ordinary spring F is to move the standard on the pivot D,
and bring the outer or greatest diameter of friction bowl B into contact
with the rim of the ordinary balance wheel G, and this contact con-
tinues so long as the spool remains in the winder, whether the rim of
the said balance wheel runs "truly" or not, because the standard C and
bowl B are free to move on the pivot D, thereby compensating for
inequalities in surface of the driving wheel or irregular rotation
thereof, and ensuring contact of the greatest diameter of the friction
bowl with the rim of the balance wheel. A slot hole H may be employed
so as to admit of adjustment of the winder to recls of various lengths.
On the screw being slacked the standard A¹ may be set or adjusted
further or nearer the standard C carrying the friction bowl, thereby
accommodating the winder to various lengths of spool.
For securing the shuttle we attach to the rocking arm K a finger L
working on a pin m; the upper end of the finger L is cramped, as
shewn, so as to extend over and bear upon the back or end portion of
the shuttle M. The crank pin or runner disc pin N operates the slotted
rocking arm K, and bears on or against the crank finger L referred to,
and so ensures its upper end embracing the end of the shuttle, and
holding the same in its seat in the carriage.
upper
It will be understood that when the friction bowl N is in the
nart of the slot of the lever I as shown at The & the fincan I ma

page_text: then be moved back by the operator clear of the shuttle, so as to admit
of the removal or replacement of the shuttle as desired.
Having thus fully described and ascertained the nature and parti-
culars of this our said Invention, together with the manner in which
the same is to be or may be performed or carried into practical effect,
we would have it understood that in order to fully illustrate our Inven-
tion by Drawings we have introduced old parts of the machine, and to
which we lay no claim, and we declare we confine our Invention and
claims to,-
Firstly. The construction and use of winders for (sewing machines),
one part of which is capable of turning or moving on a pin or pivot D,
as and-for the purpose herein described and illustrated
Secondly. We claim the cranked finger L for the purpose of securing
the shuttle in its seat, whether the said cranked finger be operated by
the runner N or by other "going" part of the machine.
In witness whercof, I, the said Henry Lomax, have for and on
behalf of myself and the said George Francis Bradbury, hereunto
set my hand and scal, this Eighteenth day of January, in
the year of our Lord One thousand eight hundred and seventy-
Witness,
WALTER BRIERLEY,
Patent Agent,
Halifax & Blackburn.
HENRY LOMAX. (L.S.)