An Improved Sewing Machine for Making Two Lines of Sewing Simultaneously.
Year: 1887

page_text: Date of Application, 24th Nov., 1887
Complete Left, 21st Mar., 1888
Complete Accepted, 27th Apr., 1888-
An Improved Sewing Machine for Making Two Lines of Sewing
Simultaneously.
I THOMAS ROBERT ROSSITER of Knowle Bristol in the County of Somerset
Manufacturer do hereby declare the nature of this Invention to be as follows:
The object of this Invention is to provide an improved Sewing. Machine which
will make two lines of sewing simultaneously and very expeditiously.
The Invention relates principally to that class of machines in which the under
thread is carried in a shuttle carrier mounted so as to have a rotary motion in a
horizontal plane or parallel with the cloth plate. According to my Invention
I provide beneath the cloth plate two such shuttle carriers each with its shuttle
and thread and I mount one or both of them so that it or they can be adjusted closer
together or further apart in accordance with the distance apart of the two lines of
sewing to be produced.
The said shuttle carriers are driven from the main shaft by gearing of any
suitable description provided that it is so arranged that it moves with the shuttle
carrier or shuttle carriers when it or they are adjusted. There are two needles
above the cloth plate adjustable with respect to each other so as to be capable of being
brought into position one over each of the under shuttles. The shuttle carriers may
be arranged to have a motion of rotation in a vertical plane instead of in a horizontal
plane but I prefer to use the latter.

page_text: An Improved Sewing Machine for Making Two Lines of Sewing
Simultaneously.
I, THOMAS ROBERT ROSSITER of Knowle, Bristol in the County of Somerset,
Manufacturer, 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 :-
The object of this Invention is to provide an improved sewing machine which will
make two lines of Sewing simultaneously and very expeditiously.
The invention relates to that class of machines in which the under thread is carried
by a shuttle mounted so as to have a rotary motion in a horizontal plane or a plane
parallel with the cloth plate.
According to my Invention I provide beneath the cloth plate two such shuttles each
mounted on its carrier and carrying thread and I may if so desired mount one or both
of them so that it or they can be adjusted to make the lines of sewing closer together
or further apart as desired.
The shuttle carriers are driven from the main shaft by gearing of any suitable
description. There are two needles above the cloth plate and if the shuttles beneath
be adjustable then these needles are also adjustable with respect to each other so as to
be capable of being brought into position one over each of the shuttles.
And in order that my said Invention may be fully understood I shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
figures on the annexed sheet of drawings the same letters of reference indicating
corresponding parts in all the figures.
Figure I is a side elevation of the fore part of a sewing machine with the cloth
plate and shuttle races in section showing the application of my Invention thereto.
Figure II is a plan of the top side of the cloth plate, with the plates covering the
shuttles removed showing the shuttle in its carrier on one side and the shuttle carrier
without the shuttle on the other side which is the case also with Figure I.
Figure III is a plan view of underside corresponding to Figure I.
A is the fore part of the gooseneck of the machine through which passes the shaft
for driving the needle bar. The driving devices may be of the usual kind, the needle
bar B being fitted in the head of this gooseneck as usual but carrying two needles
each kept in position by a screw C. The needles are received in holes, a series of the
said holes being provided by means of which the needles may be placed at any desired
distance apart in accordance with the width between the two lines of stitches. In the
presser foot D is a slot of sufficient width to allow both the needles 6' to pass through.
The needle plate or part of the cloth plate E is provided with two holes e e and this
can be removed when desired and replaced by another having holes at a distance
apart corresponding to the distance apart to which the needles 6 are adjusted or the
needle plate may be divided and mounted so as to move, with the adjustable shuttle

page_text: there being one hole in the moveable part and one in the stationary part. On the
lower shaft for driving the shuttles are two bevel wheels K K¹ each of which gears
with a bevel wheel fixed on the stems of the shuttle carriers L. M is that one of
the shuttles which is shewn. To alter the shuttles to correspond with the width apart
of the needles the shuttle race N is shewn as being formed in the adjustable part N of
the cloth plate which is fixed in position with respect to the other shuttle race by
means of bars n affixed thereto and provided with slots n' through which pass screws p
which screw into the movable plate N¹. If necessary both of the shuttles and needles
can be made adjustable, but it is only necessary that one should be, in practice. The
bevel wheel which drives the adjustable shuttle is capable of being moved longi-
tudinally on the shaft F, as the movable part of the machine is being adjusted to alter
the distance between the lines of stitches, by a bracket attached to the said moveable
part engaging a groove in the boss of the wheel K¹. The shuttle driving shaft F is
driven from the shaft above or otherwise by any suitable mechanism not shown in the
drawing. It may
be of the ordinary description. It will be understood that the
needles and shuttles may if desired be fixed permanently in position for one width of
sewing instead of one set or both being adjustable. When made adjustable as
shewn in the Drawing, the machine can be readily altered for different widths
between the lines of sewing by putting in a cloth plate with the holes for the
needles at the required distance apart, (or by moving part of it with the shuttle as
aforesaid) altering the position of the needles, and screwing up the screws C to clamp
the needles in place; adjusting the shuttle race N, and fixing it by the screw p.
The parts not shown in the Drawing or not described may be like or analogous to,
those used in ordinary sewing machines.
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 :-
1. In a sewing machine the combination of a pair of needles, a needle plate or a
portion of a cloth plate with holes or passages for both the needles, and a double
arrangement of rotatory shuttles substantially as herein before described.
2. In a sewing machine the combination of a pair of needles adjustable and fixable
with respect to each other, a needle plate or a portion thereof, or of the cloth plate
with holes or passages for the needle therein and removeable and replaceable in
position, and a double arrangement of rotatory shuttles the one adjustable and fixable
with respect to the other and provided with adjustable and fixable driving gear
substantially as hereinbefore described and illustrated by accompanying drawings.
Dated this 21st day of March 1888.