APPARATUS FOR RIDDLING OR SEPARATING AND CLEANING POTATOES OR THE LIKE be as
Year: 1885

page_text: the like.
I, GRANVILLE WALTER RANDOLPH of Thirsk in the County of York, Engineer
and Contractor do hereby declare the nature of said Invention for "APPARATUS
FOR RIDDLING OR SEPARATING AND CLEANING POTATOES OR THE LIKE to be as
follows:-
==
"
My Invention has for its object to provide an efficient apparatus for riddling or
separating and cleaning Potatoes or the like An apparatus constructed according
to my Invention consists of two riddle frames suspended by four springs preferably
made of ash and having a shaking motion imparted to them by a cranked shaft
which is rapidly rotated by hand or from any suitable motor for example by
turning a handle on a shaft geared to the crank shaft by spur wheels. In the said
riddle frames there are placed riddles with meshes of a size suited to requirements
and the small potatoes or the like placed on the upper one of these drop through
the upper riddle on to a sloping screen below and from thence pass into a vessel
placed at the mouth for their reception or form a heap. The next size Potatoes or
the like pass over the first riddle into the second riddle and there drop through to
another sloping screen below and from thence pass into any vessel or form a
separate heap as before described. The largest potatoes pass over both the riddles
and drop into a bag, basket or separate heap as desired behind the machine.
It will be evident that sorting into any required number of different sizes may
be effected by using the necessary number of riddles and screens below them. The
Potatoes or the like are during the operation cleaned of or separated from dirt or
other foreign matter.

page_text: the like.
I GRANVILLE WALTER RANDOLPH of Thirsk in the County of York Engineer
and Contractor 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:-
My Invention has for its object to provide an efficient apparatus for riddling or
separating and cleaning potatoes or the like. I will describe my Invention with
reference to the accompanying drawings whereon figure 1 is a longitudinal vertical
section and Figure 2 a transverse section of an apparatus constructed according to
my Invention. In the said apparatus as illustrated two riddle frames A and B are
suspended each by four springs C (preferably made of ash) the said frames having
a shaking motion imparted to them by a crank shaft D which is rapidly rotated by
hand or from any suitable motor for example by turning a handle on a shaft E
geared to the cranked shaft D by spur wheels F and G. The cranks of the shaft D
are respectively connected by rods H and I with the opposite ends of the riddle
frames A and B. In the said riddle frames there are placed riddles with meshes of
a size suited to requirements and the small potatoes or the like placed on the upper
riddle A drop through the upper riddle on to a sloping screen J below and from
thence pass into a vessel placed at the mouth for their reception or form a heap.
The potatoes or the like which do not pass through the riddle A pass thereover and
into the second riddle B and the smaller of these drop through to another sloping
screen K below and from thence pass into another vessel or form a separate heap.
The largest potatoes pass over both the riddles and drop into a bag, basket or other
receptacle or form a separate heap behind the machine-L is a hopper by which
the potatoes are fed on to the first riddle A.
It will be evident that sorting into any required number of different sizes may
be effected by using the necessary number of riddles and screens below them. The
potatoes or the like are during the operation cleaned of or separated from dirt or
other foreign matter.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1st An apparatus for riddling and separating or cleaning potatoes or the like
consisting of the combination of suspended riddles with means for vibrating them
the potatoes passing from one to the other or over the series of riddles and being
sorted and cleaned and distributed in separate sizes substantially as hereinbefore
described.
2nd The arrangement and combination of parts constituting the apparatus
herein before described and illustrated in the accompanying drawings for the
purpose described.
Dath: 15th day of Mo 100K