IMPROVEMENTS IN SEWING MACHINES
Year: 1867

page_text: LETTERS PATENT to Clinton Edgcumbe Brooman, of the Firm of
Robertson, Brooman, and Company, of. 166, Fleet Street, in the City
of London, Patent Agents, for the Invention of "IMPROVEMENTS IN
SEWING MACHINES."-A communication from abroad by John Nathaniel.
Tarbox, of Hamilton, Canada West..
Sealed the 15th November 1867, and dated the 16th May 1867.
PROVISIONAL SPECIFICATION left by. the said Clinton Edgcumbe
Brooman at the Office of the Commissioners of Patents, with his
Petition, on the 16th May 1867.
I, CLINTON EDGCUMBE BROOMAN, of the Firm of Robertson, Brooman, and
Company, of 166, Fleet Street, in the City of London, Patent Agents, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN SEWING
MACHINES," to be as follows:-
This Invention refers to sewing machines for producing what is known as
the shuttle or double-lock stitch.
The improvements consists, firstly, in the employment of an upright
oscillating or vibrating shuttle carrier when operated by an excentric or its
equivalent, for the purposes hereafter explained; secondly, in the employment
of a spring clamp for holding the shuttle in place while in operation, for the
purposes hereafter explained; and, thirdly, in the general arrangement or
coinbination of parts of shuttle machines, as hereafter described. .
2

page_text: These improvements will be fully understood by the following description
of the operation of a machine constructed according to this Invention:-The
cloth or material to be sewn being placed upon the cloth plate of the machine
directly under the cloth presser the needle descends through the cloth, and in
rising throws off a loop of its thread through which the shuttle passes, inter-
locking the two threads, and thereby forming the shuttle or double-lock
stitch. The shuttle is carried backwards and forwards by an oscillating
motion of the shuttle carrier which has a combination of rotary and oscillating
motions produced by means of an excentric fixed on the lower rotating shaft,
and connected to the shuttle carrier by a rod, one end of which is connected
with the shaft and the other attached to an arm of the shuttle carrier which-
'imparts a vibrating or oscillating motion. The lower end of the shuttle
carrier is attached to the machine by means of a screw or pin on which it
acts as its fulcrum. The shuttle is held in place by means of a spring clamp,
one part of which passes through the shuttle carrier, with a spring attachment
to keep the clamp drawn back against the side of the shuttle.point in order.
to force, back the shuttle in its return movement after passing through the
needle loop: When it is required to move the shuttle from its place pull the
clamp forward about an eighth of an inch and turn it to the right until
sufficient space is opened to admit of the shuttle being taken out freely.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Clinton Edgcumbe Brooman in the Great Seal Patent Office
on the 16th November 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CLINTON
EDGCUMBE BROOMAN, of the Firm of Robertson, Brooman, and Company, of
166; Fleet Street, in the City of London, Patent Agents, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixteenth day of May, in the year of our Lord One
thousand eight hundred and sixty-seven, in the thirtieth year of Her reign,.
did, for Herself, Her heirs and successors, give and grant unto me, the said
Clinton Edgcumbe Brooman, Her special licence that I, the said Clinton
Edgcumbe Brooman, my 'executors, administrators, and assigns, or such others
as I, the said Clinton Edgcumbe Bronman, my 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.

page_text: "IMPROVEMENTS IN SEWING MACHINES," (communicated to me from abroad by
John Nathaniel Tarbox, of Hamilton, Canada West), upon the condition
(amongst others) that I, the said Clinton Edgcumbe Brooman, my executors
or administrators, by an instrument in writing under my, 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 Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Clinton Edgcumbe Brooman, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly. described and ascertained in and by the
following statement thereof, reference being bad to the Drawings hereunto
annexed, that is to say :-
This Invention refers to sewing machines for producing what is known as
the shuttle or double lock stitch.
The improvements consists, firstly, in the employment of an upright
oscillating or vibrating shuttle carrier when operated by an excentric or its
equivalent for the purposes hereafter explained; secondly, in the employment
of a spring clamp for holding the shuttle in place while in operation, for the
purposes hereafter explained; and, thirdly, in the general arrangement or
combination of parts of shuttle machines, as hereafter described.
These improvements will be fully understood by the annexed Drawings,
and by the following description of the operation of a machine constructed
according to this Invention:-
Figure 1 is an elevation of the left-hand end of a portion of the machine
with the shuttle in its most forward position, that is to say, after it has passed
through the loop of the needle; Figure 2 is a similar view, but with the
shuttle in its most backward position; Figure 3 is a front view of a portion
of the machine showing the parts in the same position as seen in Figure 2;
Figure 4 is a view of the under side of the cloth plate; and Figure 5 is a
section through the centre of the cloth plate.
The cloth or material to be sewn being placed upon the cloth plate a of the
machine directly under the cloth presser 6 the needle c descends through the
cloth, and in rising throws off a loop of its thread through which the shuttle d
passes, interlocking the two threads, and thereby forming the shuttle or
double-lock stitch. The shuttle d is carried backwards and forwards by
an oscillating motion of the shuttle carrier e which has an oscillating
motion produced by means of an excentric f fixed on the lower rotating

page_text: shaft 9, and connected to the shuttle carrier e by a rod one end of
which is connected with the shaft g and the other attached to an arm i of the
shuttle carrier e, which imparts a vibrating or oscillating motion. The lower
end of the shuttle carrier.e is attached to the machine by means of a screw or
pink, on which it acts as its fulcrum:: The shuttle d works at its left side
against a guide plate 7; this plate is removed in. Figures 1 and 2. The top
of the shuttle and shuttle carrier work in a recess jin the under side of the
work plate a. The shuttle dis held in place by means of a spring clamp
m, n, the part n of which passes through the shuttle carrier e with a. spring
attachment o to keep the clamp drawn back against the side of the shuttle
point as shown, in order to carry back the shuttle din its return-movement
after passing through the needle loop. When it is required to. remove the
shuttle d from its place pull the clamp m, n, forward about an eighth of au
inch and turn it to the right, as shown in Figure 7, until sufficient space is
opened to admit of the shuttle being taken out freely.
Figure 6 is a separate view of the shuttle carrier é and clamp m in
position, and Figure 7 shows the same parts after the clamp has been pulled
forward and moved to the right.
.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim as the " Improve-
ments in Sewing Machines,"
.
First, the employment of an upright oscillating or vibrating shuttle carrier
operated by an excentric or its equivalent, substantially as and for the purposes
berein-before described with reference to the accompanying Drawings.
Second, the employment of a spring clamp for holding the shuttle in place
while in operation, substantially as and for the purpose herein-before described
with reference to the accompanying Drawings.
Third, the general arrangement or combination of parts of shuttle machines,
substantially as herein-before described and represented in the accompanying
Drawings.
In witness whereof, I, the said Clinton Edgcumbe Brooman, have here-
unto set my hand and seal, this Sixteenth day of November, One
thousand eight hundred and sixty-seven.
C. E. BROUMAN.
(L.S.)