Improvements in Apparatus for Imparting Rotary Motion, Applicable More Particularly for Driving Bicycles, Sewing Machines, and other Apparatus Usually Driven by a Crank Motion.
Year: 1888

page_text: Date of Application, 29th Sept., 1889
Complete Specification Left, 29th June, 1889-Accepted, 17th Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Imparting Rotary Motion, Applicable
More Particularly for Driving Bicycles, Sewing Machines, and
other Apparatus Usually Driven by a Crank Motion.
I, JOSEPH DUCKWORTH, of 135, Friargate, Preston, in the County of Lancaster,
Sugar Boiler and Confectioner, do hereby declare the nature of this invention to be as
follows:-
This invention consists in an arrangement of apparatus in which rotary motion is
imparted by the movement of a treadle or other equivalent appliance having a recipro-
cating motion which when moved in one direction pulls round (through the medium
of a cord or band) a circular box or barrel mounted on one end of a shaft and free
to rotate easily thereon in one direction but which is prevented from doing so in the
other as hereinafter explained. When the treadle or other appliance is moved in a
direction to pull the box round a click or pawl mounted within the box engages with
a ratchet wheel fastened upon the shaft the latter being thereupon pulled round or
rotated along with the box at the same time that a coiled spring fastened at its outer
end to the inner side of the box and at its inner end to a fixed stud or pin passing
through a hole in the centre of the box and opposite to the end of the shaft is wound
up or coiled. The shaft has fastened. upon it a flywheel whose momentum causes the
rotation of the shaft to be kept up after the pull upon the box has ceased when the
rebound or uncoiling of the spring rotates the box in the opposite direction the click
or pawl passing freely over the teeth of the ratchet wheel and the cord or band being
again wound upon the box or barrel which thereby draws towards it the treadle or
other appliance which is again moved in a direction therefrom so as to pull the box
and shaft round as before.
The box may have fastened to it on one side a pulley over which the band or cord
may be passed and the pulley may be of less diameter than the box so as to shorten
the stroke required to be made by the treadle or the band may have one of its ends.
fastened to the periphery of the box and the other to the lesser periphery of the
pulley the band passing round a pivotted roller mounted on the upper side of the
treadle below so as to divide the length of the stroke between the total of the two
circumferences of the box and pulley as will be well understood.
The apparatus for imparting rotary motion as above described is applicable for
driving bicycles sewing machines and other apparatus usually driven by a crank
motion.
W. LLOYD WISE,
Per J. G. S.,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Imparting Rotary Motion, Applicable
More Particularly for Driving Bicycles, Sewing Machines, and
other Apparatus Usually Driven by a Crank Motion.
JOSEPH DUCKWORTH, of 135 Friargate, Preston, in the County of Lancaster, Sugar
Boiler and Confectioner 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 :-
This invention consists in an arrangement of apparatus in which rotary motion is

page_text: .
imparted by the movement of a treadle or other equivalent appliance having a reci-
procating motion which when moved in one direction pulls round (through the
medium of a cord or band) a circular box or barrel mounted on one end of a shaft
and free to rotate easily thereon in one direction but which is prevented from
doing so in the other as hereinafter explained. When the treadle or other appli-
ance is moved in a direction to pull the box round a click or pawl mounted
within the box engages with a ratchet wheel fastened upon the shaft the latter
being thereupon pulled round or rotated along with the box at the same time
that a coiled spring fastened at its outer end to the inner side of the hox and at
its inner end to a fixed stud or pin passing through a hole in the centre of the
box and opposite to the end of the shaft is wound up or coiled. The shaft has
fastened upon it a fly wheel whose momentum causes the rotation of the shaft to
be kept up after the pull upon the box has ceased when the rebound or uncoiling of
the spring rotates the box in the opposite direction the click or pawl passing
freely over the teeth of the ratchet wheel and the cord or band being again
wound upon the box or barrel which thereby lifts or draws towards it the treadle
or other appliance which is again moved in a direction therefrom so as to pull the
box and shaft round as before. The return movement of the treadle may be
obtained by substituting for the coiled spring within the box or barrel a band or cord
wound upon the outside of the box or barrel its free or depending end being fastened
to a weight.
In the accompanying drawings,
Figs. 1 & 2 are respectively end and side elevations of apparatus constructed
according to my invention in which a weight is employed for the purpose just
stated and
Fig. 3 is a sectional view of a part of similar apparatus in which a coiled spring is
employed as first hereinabove described.
a is the circular box or barrel loose on the shaft b. c is the ratchet wheel fast
on the shaft b and d the click or pawl. e is a treadle and f a band or cord
wound. upon the barrel a and I preferably arrange the parts so that each down-
ward pull of the treadle causes the box or barrel to rotate to the extent of about one
complete revolution. 7 is a weight suspended by the cord m wound upon the barrel a.
9 is a fly wheel fast upon the shaft b and is a standard whose upper end forms
a bearing for the shaft b which may be of any convenient length and supported
at its other end in a suitable bearing.
"
In Fig. 1 the box or barrel a is shown partly in section in order to shew the internal
parts.
In Fig. 3 represents a coiled ribbon spring (in section) fastened at its outer
end to the box a and at its inner end to the fixed stud or pink which may be
fastened to the lower end of an arm projecting from the standard / or in any other con-
venient manner.
Fig. 4 is an end view (partly in section). of the box or barrel a shewing an
arrangement for withdrawing the click or pawl d'from contact with the ratchet wheel
teeth when out of gear therewith so as to prevent the noise made by the click
rubbing against the teeth which otherwise obtains. n is a flat spring fastened at
one end to the periphery of the box a and at its other end connected by a pin o to the
click or pawl d. When the pressure of the band fis withdrawn after each downward
movement of the treadle the spring n is free to assume the position shewn-in Fig. 4
thereby lifting the click & clear of the ratchet wheel c.
The box may have fastened to it on one side a pulley over which the hand or cord f
may be passed and the pulley may be of less diameter than the box so as to shorten
the stroke required to be made by the treadle. Or the band or cord f may have one
of its ends fastened to the periphery of the box and the other to the lesser periphery
of the pulley the band passing under a pivotted roller mounted on the treadle below
so as to divide the length of the stroke between the total of the two circumferences of.
the box and pulley as will be well understood.

page_text: The apparatus for imparting rotary motion as above described is applicable for
driving bicycles sewing machines and other apparatus usually driven by a crank and
treadle motion.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
Apparatus for imparting rotary motion constructed arranged and operating sub-
stantially as horeinabove described and shewn in the drawings.
Dated this 29th day of June 1889.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.