Improvements in Winnowing Machines or Apparatus for Dressing Corn, Seeds, and the like.
Year: 1893

page_text: Date of Application, 18th Mar., 1893
Complete Specification Left, 18th Jan., 1894-Accepted, 24th Feb., 1594
PROVISIONAL SPECIFICATION.
Improvements in Winnowing Machines or Apparatus for Dressing
Corn, Seeds, and the like.
We, HENRY TASKER of Waterloo Iron Works, Andover in the County of
Hants Engineer and CHARLES FREDERICK ASBRIDGE of Waterloo Iron Works
aforesaid, Works Manager do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to provide means for driving the riddles or screens
in winnowing or dressing machines or apparatus whereby the hitherto employed
arrangements of cranks geared wheels or straps or the like are dispensed with aud
the apparatus is consequently greatly simplified.
According to this invention the driving of the riddles or screens is effected by
means of a spring connecting rod or lever.
The riddle or screen is suspended at one end by rods depending from the frame
of the machine and its opposite end is connected by a spring connecting rod to a
crank on the spindle of the fan blower by means of which connection the necessary
tremulous or shaking motion for the riddles or screens is conveyed from the shaft
of the blower to the said riddles or screens.
The said spring rod or lever may be made for instance of wood shaped so that
one part constitutes a spring in one direction and another part a spring in the other
direction but we do not limit ourselves to this material or to the precise form of the
said rod or lever.
· Dated this 18th day of March 1893.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SITUIFICATION,
Improvements in Winnowing Machines or Apparatus for Dressing
Corn, Seeds, and the like.
We HENRY TASKER of Waterloo Iron Works, Andover in the County of
Hants Engineer and CHARLES FREDERICK ASBRIDGE of Waterloo Iron Works
aforesaid Works Manager 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 object of this invention is to provide means for driving the riddles or screens
in winnowing or dressing machines or apparatus whereby the. hitherto employed
arrangements of cranks geared wheels or straps or the like are dispensed with and
the apparatus is consequently greatly simplified.
According to this invention the driving of the riddles or screens is effected by
means of a spring connecting rod or lever. The riddles or screens are mounted in
a frame supported at one end on a pivot or axis and is suspended at the other end
by rods depending from the frame of the machine. The frame carrying the riddles
a shaft or
is connected by a spring connecting rod to a crank or disc on
spindle for instance on the shaft or spindle of the fan blower by means of which
connection the necessary tremulous or shaking motion for the riddles or screens is
conveyed from the crank to the said riddles or screens. The said spring rod or
lever may be made for instance of wood shaped so that one part constitutes a spring

page_text: in one direction and another part a spring in the other direction but we do not
limit ourselves to this material or to the-precise form of the said rod or lever.
In order that our invention may be fully understood we will further describe the
same with reference to the accompanying drawings Figure 1 of which represents in
side elevation a winnowing and screening machine constructed according to our
invention with a portion of the framing broken away to shew the interior, and
Figure 2 is a plan of the machine.
A are the screens or riddles carried in a frame B mounted at one end on a pivot
or axis Con which it is free to oscillate in a horizontal plane the said frame being
connected to the framing E of the machine by rods or hangers D which will admit
of the oscillating motions of the frame carrying the screens or riddles A. To the
frame B is fixed a bracket F which passes through a slot e in the framing E to the
exterior thereof where it is connected to one end of a spring connecting rod G
the opposite end of which rod is connected to a crank H on the shaft or spindle I
of the fan blower K. The connecting rod G may be made of any suitable springy
material for instance it may be made of wood shaped as shewn in the drawing so
that one part g can yield or spring in a horizontal plane and the other part 9* can
yield or spring in a direction at right angles to the part 9 or in a vertical plane.
By means of this connecting rod, when the fan blower is rotating, a vibrating or
tremulous motion is imparted to the frame B on its pivot or axis C which tremulous
motion is transmitted to the screens or riddles A carried by the said frame:
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
In apparatus for dressing corn Feeds and the like the combination with a screen
or riddle or with screens or riddles of a spring rod or lever connecting the said
screens or riddles to a crank or disc the ends of the said spring rod or lever being
capable of springing or yielding in planes at or about right angles to each other so
that when the crank or disc is rotated a tremulous or shaking motion will be given
to the screens or riddles substantially as hereinbefore described.
Dated this 18th day of January 1894
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, Agents.