Improvements in Spring Motors.
Year: 1891

page_text: Date of Application, 22nd Apr., 1891-Accepted, 25th July, 1891
COMPLETE SPECIFICATION.
Improvements in Spring Motors.
We, BRUNO REICHELT, FRANZ AUGUST RATTEIT, FRED SPECHT and
NATHAN MARSH, all of South Bend, St. Joseph County, Indiana, in the United
States of America, do hereby declare the nature of our said invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
Our invention relates to spring motors suitable for driving sewing machines and
other light machinery; and its object is to effect improvements in the starting,
stopping, and regulating mechanism in combination with such motors.
And in order that our said invention may be particularly described and ascer-
tained, reference is hereby made to the accompanying drawings, in which our
invention is illustrated as applied to a sewing machine, and in which similar letters
of reference indicate corresponding parts.
Fig. 1 is a perspective view of a sewing machine, fitted with our invention.
Fig. 2 is a sectional clevation, drawn to a larger scale.
Fig. 3 is a plan view of the mechanism.
Fig. 4 is a face view, and Fig. 5 a side view of the driving pulley, which also acts
as the stopping and starting wheel.
a is an ordinary sewing machine. b is a cabinet containing any suitable spring
driving mechanism. c is the driven pulley of the sewing machine and d is the
driving pulley forming part of the driving mechanism. e is the driving band. On
the face of the driving pulley d a small clastic block is fitted. f is a segmental
plate attached to the table of the sewing machine. 9 g' are two notches in the
plate is a lever, pivoted at h¹, k is a rod, pivoted to the lever h, as shown.
The upper end of this rod is fitted with a short bolt m, which fits into the
notches g. The end of the lever h is provided with a pallet n, which passes
through a slot in the side plate, as shown in Figs. 1 and 3. The lever is also
fitted with a weighted lever o.
I
When the bolt m is raised by the operator, and placed in the notch at g', the
lever is thereby raised to the position shown by solid lines in Fig. 2. In this
position the rotation of the driving wheel d is stopped by the contact of the stop d¹
with the pallet n, the motor being thereby stopped.
In order to start the motor the bolt m is moved to the notch g (as shown by
dotted lines in Fig. 2) whereby the lever h is lowered and the pallet n is moved out
of the orbit of the stop d'. The mechanism is then free to revolve.
7 is
For regulating the speed of the motor, a brake apparatus is fitted, of which p is
a foot board pivoted to the cabinet at p² as shown, by means of pendant rods.
an axle carrying two brake blocks 8 s. tt are two leather covered discs or drums,
fitted to one of the axles of the apparatus. The axle has a square socket, and the
pendant rod is also made square to fit the same.
When the attendant desires to apply the brake and reduce the speed of the
machine, the treadle p is moved by the feet towards the attendant, by which motion
the brake blocks are applied to the discs tt, and the motion is retarded or entirely
stopped, as required. When the treadle p is returned to its normal position, the
brake-blocks as are removed from the discs, and the machinery is left free to run.
The treadle is also applicable as a rest for the feet.
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 :-
1. In combination with a spring motor, the starting and stopping device con-

page_text: sisting of a segmental plate f, connecting rod k, weighted lever h, and wheel d and
elastic block d', severally operating substantially as herein before described and
illustrated by the drawings.
2. The combination with a spring motor, of the brake mechanism consisting of
the treadle p, pivoted at p', operating the axle r, brake blocks ss and discs tt,
substantially as herein before described and illustrated by the drawings.
3. The improvements in spring motors, substantially as herein before described
and illustrated by the drawings.
GEO. DOWNING,
8, Quality Court, London, W.C., Agent for Applicants.
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent for Applicants.