Improvements in Apparatus for Converting Reciprocating Motion into Rotary Motion.
Year: 1889

page_text: Date of Application, 30th Apr., 1889
Complete Specification Left, 18th May, 1889-Accepted, 22nd June, 1889
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Converting Reciprocating Motion
into Rotary Motion.
We, WILLIAM ROBERT BELL (Machinist) of 422, West 45th Street, and WILLIAM
JOHN DECKER (Book keeper) of 406, West 45th Street, in the City, County, and
State of New York, United States of America, do hereby declare the nature of this
invention to be as follows:-
Our Invention relates to driving apparatus for light running machines such as
sewing machines; and the invention consists essentially of a sleeve or shaft that is
to be driven, pawls mounted in recesses in said sleeve or shaft, rings formed with
internal ratchets arranged so as to be engaged by the pawls; and bands connected to
the rings and to a frame, all as will be hereinafter more fully explained.
In the case of a sewing machine, the balance wheel is provided with a sleeve having
recesses for the reception of the pawls and it is held in position on a stud between
a collar at one end and a washer at the other end. The sleeve carries pairs of driving
rings having internal ratchets with which spring pawls engage, and spacing rings
which also serve as supports for a bow frame which is provided with bands or cords
connected at one end to the frame and at the other to the driving rings. There are
four of these cords arranged in pairs on opposite sides of the stud, the cord of one
pair passing over its driving ring in the reverse direction to that of the other cord.
The bow frame is connected to the treadle of the machine, and the arrangement is
such that when the frame is moved both the driving rings are rotated simultaneously
but in opposite directions, one of the rings only for the time being imparting motion
to the sleeve of the balance wheel the other running idly in the reverse direction. In
other words, the driving rings alternately come into action and so drive the machine
continuously in the same direction. The pawls both point in the same direction.
In practice, it is preferred that the bands should be made of steel and in such case
the bands at one end of the frame are connected to hooks and at the other end of the
frame to clamps having threaded shanks that are engaged by winged nuts, this arrange-
ment being preferred in order that all undue slack may be taken up. Although we
have described the invention as applied to a sewing, or other light running, machine
it is obviously applicable generally for converting reciprocating into rotary motion.
Dated this 30th day of April 1880
COMPLETE SPECIFICATION
Improvements in Apparatus for Converting Reciprocating Motion
into Rotary Motion."
We, WILLIAM ROBERT BELL (Machinist) of 422, West 45th Street, and WILLIAM.
JOHN DECKER, (Book keeper) of 406, West 45th Street, in the City, County, and
State of New York, 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 :--
Our Invention relates to driving apparatus for light running machines, such as
sewing machines; and the invention consists essentially of a sleeve or shaft that is to
be driven, pawls mounted in recesses in said sleeve or shaft, rings formed with
internal ratchets arranged so as to be engaged by the pawls, and bands connected to
the rings and to a franie, all as will be hereinafter more fully explained.

page_text: Reference is to be had to the accompanying drawings forming a part of this
Specification, in which figure 1 is a side view of our improved motor; Figure 2 is an
enlarged sectional view, taken on line 2-2 of figure 1; Figure 3 is a sectional view
taken on line 3-3 of figure 2; Figure 4 is a view on line 4-4 of figure 2; and
figure 5 is a detail view of one of the tightening devices. Similar figures and letters
of reference indicate corresponding parts in all the views.
In the drawings, 10 represents a balance wheel which may also serve as a pulley if
desired, the driving belt being in such case placed in the groove e in the rim 11. The
wheel 1 is mounted on a stud 12 and held in position by a collar 13 and a washer 14
that is held to the stud by a screw n, the wheel hub being formed with an extending
sleeve 15, which abuts against the washer 14. The sleeve 15 is recessed at ff', and
in these recesses there are mounted pawls 16 and 16ª such pawls being supported by
a pin 17 arranged as best shewn in figure 2. Upon the sleeve 15 we mount
rings 18, 19, 20, 21, and 22, the rings 18, 20, and 22, serving as spacing rings and as
supports for a bow-frame 30 while the rings 19 and 21 are the driving rings and are
formed with internal ratchets i¹ that are engaged respectively by the pawls 16
and 16ª, springsk being arranged in connection with the pawls. The frame 30
carries four bands or cords a, b, c, and d, the cords or bands ab being passed about the
ring 21 in opposite directions to engage a pin o, the ends of the bands or cords being
looped to provide for the passage of the pin while the bands c and d are corre-
spondingly connected to the ring 19, the connection however being upon
the opposite
side of the ring. The bands a and d and c and b extend about their rings in the
same direction. It will be noticed that the pawls 16 and 16* point in the same
direction.
с
In order that the frame 30 may be reciprocated, we connect it with a treadle 31, as
shewn in figure 1. If the treadle be moved as indicated by the arrow, the frame 30
will be drawn downward and the cord or band will draw its ring 21 in the
direction of the arrow shown in figure 3 and the ring so moving would advance the
wheel 10 inasmuch as the pawl 16 would be engaged by the ratchet 1. As
the frame 30 is moved downward as just described, the cord d would draw on its
ring 19 and such ring would be moved as indicated by the arrow marked
figure 4, but when the frame 30 is moved upward the cord would draw on the
ring 19 and the ring would be carried in the direction of the arrow marked y.
in
From the above description, it will be seen that when the frame moves downward
the ring 21 drives the wheel 10 while the ring 19 slips over its pawl and that when
the frame moves upward the ring 19 drives the wheel 10 and the ring 21 slips, and it
will also be seen that an exceedingly slight movement of the frame will act to drive
the wheel.
In practice, it is preferred that the bands a b c and d should be made of steel and in
such case the bands at one end of the frame are connected to hooks as p and at the
other end of the frame to clamps having threaded shanks s that are engaged by
winged nuts t, this arrangement being preferred in order that all undue slack may be
taken up. It will be noticed that the rings 18, 20, and 22, serve as supports for the
frame 30, such frame being guided at one side by the wheel hub and at the other by
the washer 14.
Although we have described the invention as applied to a sewing or other light
running machine, it is obviously applicable generally for converting reciprocating into
rotary motion.
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. The combination with a driven member provided with pawls, of rings formed
with internal ratchets that are engaged by the pawls, bands passed about the rings in
opposite directions, and a frame to which the bands are connected, as and for the
purpose stated.
2. The combination with a driven member provided with pawls, of rings formed

page_text: with internal ratchets that are engaged by the pawls, bands passed about the rings in
opposite directions, a frame to which the bands are connected, a treadle, and a
connection between the treadle and the frame, substantially as described.
3. The combination with a driven member provided with pawls, of a ring 19
formed with an internal ratchet that is engaged by one of the pawls, bands connected
to the ring and passing in opposite directions about said ring, a frame to which the
bands are connected, a ring 21 also formed with an internal ratchet that is engaged
by the other pawl, bands which pass in opposite directions about, and are connected
to, the ring 21, the point of connection being opposite that of the ring 19, connections
between the bands and the frame, and means for reciprocating the frame, as and for
the purpose stated.
Dated this 18th day of May 1889.
W. R. BELL.
W. J. DECKER.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.