Improvements in Sewing Machines for Sewing Two or More Rows. of Stitching Simultaneously.
Year: 1896

page_text: Date of Application, 9th July, 1896
Complete Specification Left, 9th Apr., 1897-Accepted, 15th May, 1897
PROVISIONAL SPECIFICATION.
Improvements in Sewing Machines for Sewing Two or More Rows.
of Stitching Simultaneously.
We, CHARLES WILLIAM ALLEN and THOMAS ROBERT ROSSITER both of the Firm of
Chappell Allen and Company of Weare Street in the City of Bristol, Corset.
Manufacturers, do, hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a multiple line sewing machine by which
a number of parallel lines of stitching can be sewn simultaneously and very closely
together. According to this invention we fix the needles side by side in the needle
bar at a distance apart corresponding to the distance apart of the lines of stitching
to be sewn the said needles each carrying a top thread so that the top threads are
also in number corresponding to the parallel rows of stitching required. The shuttle
is arranged and driven so that during its travel in each direction it passes through
all the loops of thread formed by the several needles which descend and rise twice
for each double or to and fro motion of the shuttle which is furnished with a point
or nose at each end to enter the loops in each direction. The shuttle and needles
may be driven by any suitable mechanism arranged so as to give a descent of the
needles for each stroke of the shuttle in either direction. The shuttle is driven by
an arrangement which will allow of its passage through the loops.
A suitable arrangement consists of a swinging lever whose opposite ends engage
with the shuttle towards its respective ends and is turned on its centre by a cam groove.
or other suitable means so that the ends of the lever are alternately engaged and
disengaged to allow the shuttle to pass through the loops, but any other suitable
device which can be alternately engaged with and disengaged from the shuttle can
be used.
ليم
T... 1800
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.
Improvements in Sewing Machines for Sewing Two or More Rows
of Stitching Simultaneously.
We, CHARLES WILLIAM ALLEN, and THOMAS ROBERT ROSSITER, both of the Firm
of Chappell Allen and Company, of Weare Street, in the City of Bristol, Corset
Manufacturers, 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 a multiple line sewing machine by which
a number of parallel lines of stitching can be sewn simultaneously and very closely

page_text: together. The invention will be best understood by reference to the accompanying
drawings in which :-
Figure 1 is a view, partly in side elevation and partly in longitudinal vertical
section, of a sewing machine provided with our improvements.
Figure 2 illustrates a portion of the same machine with the shuttle shewn in a
position different from that in which it is represented in Figure 1; and
Figure 3 is an underside view drawn to an exaggerated scale of a portion of the
work produced by the machine.
According to this invention we fix the needles A side by side in the needle bar B
at a distance apart corresponding to the distance apart of the lines of stitching to
be sewn, the said needles each carrying a top thread (not shewn in the drawings)
so that the top threads are also in number corresponding to the parallel rows of
stitching required. The shuttle C is arranged and driven so, that during its travel
in each direction it passes through all the loops of thread formed by the several
needles which descend and rise twice for each double or to and fro motion of the'
shuttle, which is furnished with a point or nose c at each end to enter the loops in each
direction. The shuttle C and needles A may be driven by any suitable mechanism
arranged so as to give a descent of the needles for each stroke of the shuttle in either
direction, for example, the needles A are shewn in the drawings as being operated
by a cam D and the shuttle by a cam E these two cams being adapted to impart the
herein before mentioned motions to the needles and shuttle at the required periods.
The cam E operates the shuttle C and shuttle carrier E' through a rod E', on the
former of which is pivoted a swinging lever F whose opposite ends f project upwards
and engage with holes c¹ near the respective ends of the shuttle. This swinging
lever is turned on its pivot ¹ (when the shuttle is moved to and iro) by a stationary
cam G and an arm g, projecting from the swinging lever F and carrying an anti-
friction roller g¹ working in the slot of the said cam so that the ends of the lever F
may be alternately engaged with, and disengaged from the shuttle to allow it to
pass through the loops of the upper threads but we do not restrict ourselves to this
arrangement for alternately engaging and disengaging the shuttle. By referring to
Figure 3 it will be seen that the shuttle thread c in one direction passes through the
series of loops a formed by one descent of the needles, after which the work is fed
forward and the needles make their next descent whereupon the shuttle C passes
in the reverse direction through the loops of thread then formed, and so on, the
shuttle thus locking each series of stitches at each of its forward and backward
movements.
.
Although we have described the movements of the needle bar and of the shuttle as
being obtained from cams it is to be understood that we do not limit ourselves to this
mode of obtaining the movements as they can he obtained by any other suitable gear
from the first motion axis or shaft. We do not limit ourselves to the precise mode
of driving the shuttle as it may be driven by any means which will allow of the
passage of the shuttle and under thread through the loops of the upper thread
but we have shewn what we consider the best method of carrying this invention
into effect.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. In machines for sewing two or more rows of stitching simultaneously the com-
bination of needles and shuttle so relatively driven that the needles make two
reciprocations for each reciprocation of the shuttle so that the needles form loops
before each backward and forward movement of the shuttle and the shuttle passes
through the loops so formed alternately on its forward and backward strokes
substantially as hereinbefore described.
2. In a sewing machine a shuttle driving arrangement consisting of a swinging
lever provided with projections to engage and disengage the opposite ends of the

page_text: shuttle at the necessary periods to pass it through the loops of the needle threads
substantially as hereinbefore described.
3. The general arrangement and combination of parts constituting a sewing machine
for sewing two or more rows of stitching simultaneously as hereinbefore described and.
illustrated in the accompanying drawings.
DL 8th 1907
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents..