IMPROVEMENTS IN DRIVING MOTION FOR OPERATING WRINGING AND MANGLING OR OTHER MACHINES to be as follows:
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I JOHN WILKS of 1 Gilmore Street South Stockton on Tees in the County of
York, Commercial Traveller do hereby declare the nature of my said Invention
for "IMPROVEMENTS IN DRIVING MOTION FOR OPERATING WRINGING AND MANGLING
OR OTHER MACHINES to be as follows:-
"
My Invention relates to the arrangement of mechanical parts for applying a
driving motion such as is required to operate wringing and mangling machines and
is applicable generally to that class of machines in which the driving motion is
transinitted to the working parts through spur wheels and pinions or their
equivalents.
In carrying out my Invention I provide an arrangement of mechanical parts for
applying a driving motion fitted into each other at one end of the driving spindle
which in the case of a mangling or wringing machine is usually the spindle of one
of the rollers. These mechanical parts consist of an internally toothed spur wheel
which is keyed to the driving spindle and is rotated by the action of a pinion
which works with a rocking motion inside it this rocking motion is produced by
an eccentric fitted into the pinion and to which it imparts a reciprocating motion
which is prevented from becoming a circular motion by the restraining action of a
guide bar.
The driving wheel may be an ordinary fly wheel worked by a handle when the
machine is driven by hand power, or it may be a pulley worked by an endless
band or otherwise suitably driven; this driving wheel revolves on the end of the
driving spindle but is not keyed to it, the eccentric which imparts the recipro-
cating motion to the pinion is a projection secured to or forming part of the fly
wheel so as to also revolve on the driving spindle with the driving wheel as
already described so that by rotating the driving wheel the eccentric is brought
into action.
The pinion which works inside the internally toothed spur wheel fits on the
eccentric so that the eccentric revolves inside it and is provided with a guide bar
rigidly secured to it. This guide bar is free to move with a reciprocating angular
motion like the connecting rod of a steam engine and must be of a suitable length
to avoid undue friction. The throw of the eccentric and the diameter of the pinion
bell

page_text: must be so adjusted to the size of the internal spur wheel that the cogs of the pinion
continually fit the cogs of the internal spur wheel. By providing the pinion with
a different number of teeth to the number provided in the spur wheel the rocking
motion of the pinion will impart a rotary motion to the spur wheel known as a
differential motion, the mechanical advantage obtained depending on the adjust-
ment in the number of teeth thus by providing fourteen teeth on the pinion and
sixteen in the internal spur wheel the driving wheel will revolve eight times to
each revolution of the driving spindle this driving motion may therefore be
substituted in most cases where the same kind of mechanical advantage is
obtained by means of spur wheels and pinions or worms and worm wheels geared
into each other and possesses the advantage of fewer parts and of greater
structural compactness.

page_text: COMPLETE SPECIFICATION.
I JOHN WILKS of South Stockton on Tees in the County of York Commercial
Traveller do hereby declare the nature of my invention for "IMPROVEMENTS IN
DRIVING MOTION FOR OPERATING WRINGING AND MANGLING OR OTHER MACHINES
"
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :—
My Invention relates to an arrangement and combination of mechanical parts
constituting a driving motion especially suited for operating wringing and
mangling machines but it is applicable generally to that class of machines wherein
the driving motion is transmitted to the working parts through spur wheels and
pinions or their equivalents working in combination with a rotary spindle or
driving shaft.
I will describe my Invention with reference to the accompanying drawings.
Figure 1 is an elevation illustrating my Invention when fixed in position on a
spindle or driving shaft and Figure 2 is a sectional view taken on the line x x of
figure 1; a is the rotating spindle or driving shaft which may be provided in any
suitable position for transmitting the driving motion to the working parts of the
machine In wringing and mangling machines of the ordinary construction it is
preferably one of the roller spindles is an internally toothed wheel keyed to the
spindle or driving shaft a so that a rotary motion imparted to the spur wheel b
carries the spindle or shaft round with it. c is a driving wheel turned by a
handlo c¹ as shown in Figure 2 or where high power or speed is required the
wheel c may be a pulley driven by an endless band-The wheel or pulley o is
fitted on to the spindle or shaft a so as to revolve on it, and is provided with an
eccentric projection or boss c³ secured to or forming part of the said wheel or
pulley c so that the rotation of the wheel or pulley c causes the eccentric pro-
jection to revolve round the spindle or shaft a-
- This eccentric projection c*
extends towards the spur wheel b so that the pinion d fitted on to it always is in
gear with the spur wheel b, the throw or stroke of the eccentric projection c³ being
adjusted to suit the relative diameters of the pinion d, and spur wheel b, so that
the teeth of the pinion d gear into the cogs or teeth of the spur wheel bat every
position to which the pinion is moved by the action of the eccentric projection c*
on which it works. The pinion & which is provided with fewer teeth than the
spur wheel b is restrained in its motion by a motion bar d' which is of considerable
length relatively to the motion of the pinion d to avoid undue friction and is
rigidly fixed to it at one end but is free to move like the connecting rod of an
eccentric of the usual construction that is with a reciprocating and oscillating
motion corresponding to the throw of the eccentric c³ this may be done by
connecting the end d of the motion bar d¹ to a levere working on a centre pin f
as shown in figure 1, in which case I prefer to provide the balance weight g
towards the end of the lever, or any other suitable arrangement may be provided
for effecting the same reciprocating and oscillating movement of the bar d', When
the eccentric c³ is brought into action by rotating the wheel or pulley c the

page_text: pinion d acts upon the spur wheel b and causes it to rotate, the motion produced
being that known as a differential motion, in which the mechanical advantage may
be varied by adjusting the number of teeth or cogs in the pinion d to the number
in the corresponding spur wheel 6 for example fourteen teeth on the pinion d
gearing into sixteen teeth on the spur wheel b will cause one revolution of the
driving shaft or spindle a to eight revolutions of the wheel or pulley c. The
spindle or driving shaft a may be geared directly into the working parts of the
machine by means of the teeth 61 forming a star wheel on the back of the spur
wheel b as shown in the figures, or this may be effected by any other suitable
means.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same may be carried into effect, what
I claim is
The arrangement and combination of parts constituting a driving motion for
wringing mangling or other machines wherein the power applied is transmitted to
the working parts by the rotation of a shaft or spindle substantially as herein-
before described with reference to the accompanying drawings.