ins for sewing machines
Year: 1888

page_text: Date of Application, 18th Sept., 1888
Specification Accepted, 19th Oct., 1888
I EMMA FLORA BRIGGS, of San Marcos County of Hays, State of Texas, United
States of America, Gentlewoman 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 invention relates to improvements in motors for sewing machines.
Heretofore motors have been provided for sewing machines capable of operating by
either the hand or foot, but the difficulty experienced in these machines is that during
the operation of the machine by hand the treadle forms no substantial support for the
feet, the pitman being simply disconnected from the driving wheel and thrown back.
The object of the present invention is the production of a motor capable of rapid
and convenient adjustment to permit operation by hand or foot and which will obviate
the above objection.
The invention consists in the novel combination and arrangement of parts herein-
after fully described, illustrated in the accompanying drawings and pointed out in the
appended claim.
In the drawings: Fig. 1 is a perspective view of a machine-table showing the
inclined hand-rod attached to the crank arm of the drive wheel and the pitman secured
to the depending hook at the rear of the machine table to convert the treadle into a
support for the feet during the operation of the machine by hand. Fig. 2 is a
transverse sectional view showing the pitman attached to the crank arm of the drive
wheel and the inclined hand-rod secured to the depending hook.
Referring to the accompanying drawings A designates a table of a sewing machine
of ordinary construction provided in the top A¹ with a slot, a through which passes
an inclined hand rod B. the lower end of which is attached to the crank arm b of a
drive wheel C. which is mounted in the metal frame A2 of the sewing machine table A
in the ordinary manner while the upper end of the inclined hand rod B is provided
with a handle b¹ which extends through the slot a in the top A¹ of the sewing machine
table A and by means of which the sewing machine is operated when it is desired to
relieve the feet.

page_text: The inclined hand-rod is constructed sufficiently long to extend the handle b' above
the top of the machine such a distance that it may be readily and conveniently grasped
by the hand and allow vertical motion by which the said lever is operated, and to
deaden the sound and render such motion as noiseless as possible the slot, a, in the
top A through which the inclined hand rod passes is lined with rubber, felt, or
similar sound-deadening material.
When it is desired to operate the machine by hand, the pitman D is detached from
the crank arm of the drive wheel C and secured to a hook E depending from the
top A and the rear of the machine table, as is illustrated in Fig. 1 of the accom-
panying drawings, whereby a support for the feet is formed of the treadle F which is
a great desideratum.
During the operation of the machine by foot-power, the inclined hand rod B is
secured to the hook E and the pitman D is attached to the crank arm b of the drive
wheel C, The machine may be rapidly and conveniently adjusted in a moment to be
operated either by the rod or the treadle to suit the preference of the operator and in
long and continued use of the machine this interchangeableness of the manner of
operation affords a ready and effective means for resting the tired limbs of the operator
and the change may be made so quickly that there is no time lost by the person
sewing.
From the foregoing description and the accompanying drawings, the construction
and operation and advantages of the invention will be readily seen, and I desire it to
be understood that I do not limit myself to the precise details of construction herein
shown and described as I may, without departing from the spirit of the invention
make any minor changes therein.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
As an attachment for the stand of a sewing-machine adapted for interchangeable
motors, the depending hook designed to receive and support when out of use either
the pitman or the inclined hand-rod, substantially as described.
Latod
bsa
940
Late
Septembe
BERNHARD DUKES,
226, High Holborn, London, W.C.,
Agent for the Applicant.
BERNHARD DUKES,
226, High Holborn, London, W.C.,
Agent for the Applicant.