An Improved Motor for Sewing Machines.
Year: 1893

page_text: Date of Application, 2nd Mar., 1893
Complete Specification Left, 4th Dec., 1893-Accepted, 2nd Mar., 1894
INUVIDIONAL DICITICATION.
An Improved Motor for Sewing Machines.
We, ANNA HOWELL CLAYTON, Seamstress, JAMES MADISON PARKer, Agent
and Solicitor, PATRICK CYRIL DONOVAN, Sheriff, and THOMAS FRANKLEN
FANNING, Slater Roofer, all of Jeffersonville, State of Indiana, United States of
America, do hereby declare the nature of this invention to be as follows:-
:-
The motor of this invention is preferably located in a casing fixed underneath the
table of the sewing machine.
It consists of a train of toothed wheels leading from a spring coil to the
belt driving pulley of the sewing machine. The spring, located in a drum, is wound
up from a crank handle through bevel gearing. A pawl and ratchet wheel prevent
the unwinding of the spring. There is a brake wheel on the same shaft as the
machine driving pulley against which brake wheel a brake is pressed through a rod
acted on by a spring. By a slight pressure of the operator's foot upon a stirrup
connecting with the spring brake rod the brake is disengaged and the machine
thereby set in operation.
Dated this 2nd day of March 1893.
THOMAS R. SHILLITO,
89, Chancery Lane, London, W.C., Agent for the Applicants.
An Improved Motor for Sewing Machines.
We, ANNA HOWELL CLAYTON, Seamstress, JAMES MADISON PARKER, Agent
and Solicitor, PATRICK CYRIL DONOVAN, Sheriff, and THOMAS FRANKLEN
FANNING, Slater Roofer, all of Jeffersonville, State of Indiana, United States of
America, 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 sewing machine motor of this invention has for object to insure economy,
durability and ease.
In the drawing
Fig. 1 is a transverse sectional view of the motor shewing the position of the
spring and machinery.
Fig. 2 is a rear end sectional view of Fig. 1 shewing the drum casing and
gearing.
A is the top or table of a sewing machine, on which is mounted the casing B,
held in position by a clamp 6 and screw b¹, the clamp being formed on the casing.
C is the crank of a shaft c which drives bevel gear wheels D, E. F is a spring
encased in the fixed drum G and wound by the rotation of gear wheel E. To the
shaft c¹ is secured the main driving toothed wheel I and the ratchet wheel J. d is
a pawl which prevents the unwinding of spring F. It is secured to the outer
casing B so that it may engage the ratchet wheel J which is rotated by the
resiliency of spring F. Driving wheel I engages smaller toothed wheel K which
rotates with the shaft e and causes the revolution of the larger toothed wheel L
also fixed on shaft e and engaging pinion M of shaft f. On and rotating with the
shaft is the cog wheel N engaging pinion O of shaft y. P is a grooved pulley

page_text: through which belt / imparts motion to the sewing machine and Q a plain brake
wheel acting as a resistant for the shoe of a brake rod R both P and Q being
mounted on shaft g. The brake rod R is pivotted at a point & and is kept normally
in contact with wheel Q by the resiliency of a spiral spring R¹ connected to the
brake shaft at a point h¹, thus preventing the rotation of the mechanism.
A small belt similar to those used on ordinary sewing machines or any substantial
cord S is secured at the end of brake rod R and made to pass through pulley i to
stirrup j.
It will be readily understood that the slightest weight of the operators foot upon
the stirrup expands the spiral spring R₁ and uplifting that side of the brake to
which it is connected, disengages the brake and permits the running of the
machinery.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
In a motor of the kind referred to, a casing, a driving spring, and means for
winding the same, in combination with a brake wheel, a brake rod having a shoe
which engages said brake wheel, said rod pivotally supported between its ends
within the casing, a spring which keeps the brake shoe normally in contact with the
brake wheel, a cord running over a pulley i outside the casing and a stirrup at the
end of aid cord, by the use of which the brake may be released to allow the motor
to run, substantially as described and shewn.
Dated this 2nd day of December 1893.
THOMAS R. SHILLITO,
89, Chancery Lane, London, W.C., Agent for the Applicants.