IMPROVEMENTS IN SEWING PROVISIONAL SPECIFICATION
Year: 1875

page_text: LETTERS PATENT to Walter Alfred Blake, of Grange Road, Ber-
mondsey, in the County of Surrey, Sewing Machine Manufacturer,
and George Moss, of Rolls Road, Bermondsey, in the County of
Surrey, Machinist, for the Invention of "IMPROVEMENTS IN SEWING
PROVISIONAL SPECIFICATION left by the said Walter Alfred Blake
and George Moss at the Office of the Commissioners of Patents,
with their Petition, on the 11th October 1875.
We, WALTER ALFRED BLAKE, of Grange Rd., Bermondsey, in the
County of Surrey, Sewing Machine Manufacturer, and George Moss, of
Rolls Rd., Bermondsey, in the County of Surrey, Machinist, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN SEWING
MACHINES, SHUTTLES FOR THE SAME, AND BOBBINS FOR THE SAME," to be as
follows:-
The Invention relates firstly to a new method of sewing by machinery
whereby a perfect stitch is made by each to-and-fro motion of the

page_text: shuttle or other instrument carrying the bottom thread. In existing
shuttle sewing machines the shuttle must necessarily pass and repass
the needle to make one stitch. By this Invention these two motions of
the shuttle to make one stitch are superseded, and a perfect stitch is
made by each passage of the shuttlo or other instrument carrying the
bottom thread, the first stitch being made by the motion of the shuttle or
other instrument in the one direction, the next stitch being made by its
return motion in an opposite direction to the first, and so on in succession.
The Invention relates secondly to a new description of sewing
machine shuttles made in one or more parts, which we make with both
ends pointed.
The Invention relates thirdly to a new mode of operating the feed and
stitch regulator, thereby obtaining a silent feed at any length of stitch,
the feed standing vertically upon the feed cam, the said feed having a
slot from nearly the top to nearly the bottom, which said slot is in a
parallel line with the feed cam shaft or spindle. The said slot has a pin
or stud passed through it, and fixed in a lever, which said lever lics
horizontally across the machine at a right angle to the feed cam shaft by
the side of the said vertical feed, the said pin or stud in the slot of the
said vertical feed forming a centre upon which the feed oscillates. By
pressing the said lever or stitch regulator the stitch is lengthened, and
by raising the said lever the stitch is shortened. The bottom of the
said feed is always pressed against the said feed cam by means of a
spring.
The Invention relates fourthly to the application in sewing machines
of a slide bar, which stands parallel to the needle bar, upon which
slide bar the needle cam moves up and down, and is fitted to prevent
the slide oscillation of the needle cam.
The Invention relates fifthly to a new mode of raising and lowering
the presser foot, which is effected by means of an inclined planc and
oscillating slide, which is attached to the end of the arm of machine by
the side of the presser foot bar so as to slide to and fro, the foot bar
having a fixed pin or stud, projecting under the said stud the oscillating
inclined plane slide moves. By pulling the said slide the presser foot is
raised, and by pushing it back the presser foot is lowered, and by
pressing down the said oscillating inclined plane slide the presser foot
is raised, and by drawing the slide and then pressing it down the foot
is turned partially round,

page_text: The Invention relates sixthly to the application of wood, horn, bone,
and ivory for use in sewing machines for the purpose of wheels or
teeth of wheels for the purpose of obtaining silence in working.
The Invention relates seventhly to the mode of attaching india-rubber
rings on the feet or stand, which is accomplished by stretching the
rings over bevilled or grooved pegs, which are under the feet or stand
in such a position as will prevent the rings slipping off.
The Invention relates eighthly to a new mode of winding sewing
machine shuttle reels or bobbins, and for the manner in which the said
reels or bobbins are made. The said reels have a small toothed wheel or
pinion fixed at one or both ends, into which said pinion a larger wheel
runs to drive round the said reels for the purpose of winding the said
reels.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Walter Alfred Blake and George Moss in the Great
Seal Patent Office on the 7th April 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, WALTER
ALFRED BLAKE, of Grange Road, Bermondsey, in the County of Surrey,
Sewing Machine Manufacturer, and GEORGE Moss, of Rolls Road,
Bermondsey, in the County of Surrey, Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of October, in the
year of our Lord One thousand eight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto us, the said Walter Alfred Blake and
George Moss, Her special licence that we, the said Walter Alfred Blake
and George Moss, our executors, administrators, and assigns, or such
others as we, the said Walter Alfred Blake and George Moss, 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 lawfully 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, SHUTTLES FOR THE SAME, AND BOBBINS FOR THE SAME," upon

page_text: in writing under our, or their, or one of their hands and seals,
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 Walter Alfred Blake and George
Moss, 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, that is to say :-
The Invention relates firstly to a new method of sewing by machinery
whereby a perfect stitch is made by cach to-and-fro motion of the shuttle
or other instrument carrying the bottom thread. In existing shuttle
sewing machines the shuttle must necessarily pass and repass the needle
to make one stitch. By this Invention these two motions of the shuttle
to make one stitch are superseded, and a perfect stitch is made by each
passage of the shuttle or other instrument carrying the bottom thread,
the first stitch being made by the motion of the shuttle or other instru-
ment in the one direction, the next stitch being made by its return
motion in an opposite direction to the first, and so on in succession.
The Invention relates secondly to a new description of sewing
machine shuttles made in one or more parts, which we make with both
ends pointed.
The Invention relates thirdly to a new mode of operating the feed and
stitch regulator, thereby obtaining a silent feed at any length of stitch,
the feed standing vertically upon the feed cam, the said feed having a
slot from nearly the top to nearly the bottom, which said slot is in a
parallel line with the feed cam shaft or spindle. The said slot has
a pin or stud passed through it and fixed in a lever, which said lever lies
horizontally across the machine at a right angle to the feed cam shaft
by the side of the said vertical feed, the said pin or stud in the slot of
the said vertical feed forming a centre upon which the feed oscillates.
By pressing the said lever or stitch regulator the stitch is lengthened,
and by raising the said lever the stitch is shortened. The bottom of the

page_text: said feed is always pressed against the said feed
spring.
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The Invention relates fourthly to the application in sewing machines
of a slide bar, which stands parallel to the needle bar, upon which slide
bar the needle cam moves up and down, and is fitted to prevent the side
oscillation of the needle cam or instrument.
The Invention relates fifthly to a new mode of raising and lowering
the presser foot, which is effected by means of an inclined plane and
oscillating slide, which is attached to the end of the arm of machine by
the side of the presser foot bar, so as to slide to and fro, the foot bar
having a fixed pin or stud projecting under the said stud the oscillating
inclined plane slide moves. By pulling the said slide the presser foot is
raised, and by pushing it back the presser foot is lowered, and by pressing
down the said oscillating inclined plane slide the presser foot is raised,
and by drawing the slide and then pressing it down the foot is turned
partially round.
The Invention relates sixthly to the application of wood, horn, bone,
and ivory for use in sewing machines for the purpose of wheels or teeth
of wheels for the purpose of obtaining silence in working.
The Invention relates seventhly to the mode of attaching india-
rubber rings on the feet or stand, which is accomplished by stretching
the rings over bevilled or grooved pegs which are under the feet or stand
in such a position as will prevent the rings slipping off.
The Invention relates eighthly to a new mode of winding sewing
machine shuttle reels or bobbins, and for the manner in which the said
recls or bobbins are made. The said reels have a small toothed wheel
or pinion fixed at one or both ends, into which said pinion a larger
wheel runs to drive round the said reels for the purpose of winding the
said reels.
In order that the said Invention may be more clearly understood and
readily carried into effect we will proceed, aided by the accompanying
Drawings, more fully to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a front and side elevation of our new double-pointed
shuttle, a. a. being the ends so constructed as to alternately pass through

page_text: Figure 2 is a sectional end elevation of the feed and mode of operating
same, being the cam by which the feed c is actuated, the feed c being
kept always bearing against the cam 6 by means of the spring d, this
arrangement preventing any noise in working; e is the stitch regulator
lever moving upon the stud f. By depressing the lever e the stud g is
carried down the slot in feed c, causing the fulcrum of feed to be
increased, and in consequence lengthening the stitch, and by raising the
lever e the fulcrum of feed is decreased, and in consequence the stitch
is shortened.
Figure 3 is an end sectional clevation of needle bar, parallel guide
bar, presser foot bar and needle cam, and presser foot lifter i is the
needle bar working in bearings k, k, in head of machine arm; is the
parallel guide bar fixed in head of machine arm m, m; n is the presser
foot bar working in bearings o, o, of head of machine arm; p is the
cam by which the needle bar i is operated, the cam p being fixed upon 1
needle bar i, and sliding up and down parallel bar l, and fitted to prevent
side oscillation; r is the foot lifter sliding to and fro upon stud & fitted
into slot 4. This action, by means of inclined plane u and pin W raises
and lowers the presser foot bar n; by depressing foot lifter at x the
presser foot is temporarily raised; by drawing the foot lifter and then 2
depressing it at x the foot is turned partially round.
1"
8
Figure 4 is section of machine shewing the peculiar shape of foot or
stand for attaching india-rubber rings thereto; y, y, y, are pins or lugs
cast upon the foot made in a bevilled or curved shape, which will
prevent the india-rubber ring from slipping off.
2
Figure 5 is front elevation of gear wheel, which according to the
present Invention is by the following contrivances caused to work
almost without noise:-a is the body of the wheel; b are the holes
drilled through both flanges or discs of wheel in which we insert per-
manently pins or pegs of wood, ivory, bone, horn, vulcanite, or other 8
material to obtain the aforesaid silence in working.
Figure 6 is an edge elevation of Figure 5, shewing the flanges c, c,
with pins or pegs d, d, inserted.
Figure 7 is front view of wheel for bobbin winder.

page_text: the end of bobbin upon which the teeth are affixed; f, is an end view
of the said bobbin shewing teeth.
In witness whereof, we, the said Walter Alfred Blake and George
Moss, have hereunto set our hands and seals, this Twenty-ninth
day of February, in the year of our Lord One thousand eight
hundred and seventy-six.
WALTER ALFRED BLAKE. (L.S.)
GEORGE MOSS.
(L.S.)