Improvements in Apparatus for Sifting.
Year: 1895

page_text: -Date of Application, 24th Jan., 1895
Complete Specification Left, 25th Nov., 1895- Accepted, 18th Jan., 1896.
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Sifting.
I CHARLES HESSEY STUBLEY, Miller, No. 2 Whitehead Street Robin Hood'
Chase Nottingham do hereby declare the nature of this invention to be as
follows:-
The sifters are formed of a skeleton or frame-work of a sieve, the lower part of
each frame-work is covered with silk, wire or any suitable material, the ends and
sides which complete each sifter consists of felting, webbing or other similar suitable
material.
Preferably supported by straps, springs or hanging rods is a box of a suitable
size and shape in accordance to the number of sifters it contains.
The box is reciprocated in any ordinary way by means of one or more cranks
or cams.
The lower or sifting part of the sifters are allowed to sink a desired distance
into the box, from the top, at a suitable distance apart from each other so that
they may or may not touch each other in their movement, should they be allowed
to touch each other small pieces of india-rubber or like material is fastened to the
lower frame-work of each sifter to stop any noise.
The top frame-work of each sifter rests on supports either lengthwise or across
the box, the lower part of the sifters hang loose being suspended by their own sides
and ends.
The box may be slightly inclined or the box may be level and the sifters slightly
inclined.
The top frame-work of the sifters may rest on supports independent of the box
and thus be reciprocated.
Two or more boxes containing sifters may be used in one frame one above
another and slightly inclined in opposite direction to each other.
As the box or supports are reciprocated the sifters are caused to swing the sides.
of the sifters then bulge thus the lower part of the sifters are made to cant or toss
giving the desired effect to the material to be sifted.
One or more of the sifters can be used as described.
Dated 23rd day of January 1895.
:
Improvements in Apparatus for Sifting.
CHARLES, HESSEY STUBLEY No. 2 Whitehead Street Robin Hood Chase
Nottingham in the County of Nottinghamshire Miller 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 agitating the material to be
sifted and to move and shake the sifting surface with more severity than the sieve,
frame or box which carries the sieves.

page_text: For this purpose, the sifters are formed of a skeleton or frame work of a sieve,
the lower part of each frame work is covered with silk, wire, or other suitable
material. The ends and sides which complete each sifter consists of felting,
webbing or other similar suitable material.
Preferably supported by straps, springs or hanging rods is a box of a suitable
size and shape in accordance to the number of sifters it contains..
The box is reciprocated in any ordinary way by means of one or more cranks
or cams.
The lower or sifting part of the sifters are allowed to sink a desired distance into
the box, from the top, at a suitable distance apart from each other so that they may
or may not touch each other in their movement, should they be allowed to touch
each other small pieces of india-rubber or like material is fastened to the lower
frame-work of each sifter to stop any noise.
The top frame-work of each sifter rests on supports either lengthwise or across
the box, the lower part of the sifters hang loose being suspended by their own sides
and ends.
The box may be slightly inclined or the box may be level and the sifters slightly
inclined.
The top frame-work of the sifters may rest on supports independent of the box
and thus be reciprocated.
Two or more boxes containing sifters may be used in one frame one above
another and slightly inclined in opposite direction to each other.
As the box or supports are reciprocated the sifters are caused to swing. The
sides of the sifters then bulge thus the lower part of the sifters are made to cant
or toss, giving the desired effect to the material to be sifted, one or more of the
sifters can be used as described.
In order that my invention may be fully understood and readily carried into
effect I will proceed to describe the drawings hereunto annexed.
r.
Figure 1 is a plan of sifting apparatus arranged according to my invention.
Figure 2 is a transverse section of the same the figures of the apparatus which
they represent may be of any dimensions in length breadth or depth.
A is the bux A the top frame work of a sifter, the dotted lines B. B are the
flexible sides and ends which carry the lower frame work and sifting surface, C'C' is
the lower frame work C is the sifting surface, the flexible sides and ends B. B are
connected to the top and bottom frame work of the sifters by tacks, screws, bolts
or the like, the flexible sides and ends of each sifter may be composed partly of
india-rubber felting webbing or other similar suitable material so that when the
supports or box is reciprocated the sides and ends will bulge so that the lower
frame work and sifting surface is made to toss in its movement..
It will be observed that by this invention the portion of frame work to which is
attached the sifting surface is allowed to move loosely independent of the box or
supports which carry the sifters, the object being to shake the sifting surface with
greater severity than the box or supports which contain the sifters, the box or
supports being reciprocated in the ordinary way.
Having now particularly described and ascertained the nature of my said
invention and in what mauner the same is to be performed I declare that what
I claim is
First. A skeleton or frame work of a sieve whose sides and ends consist of
flexible material.
Second. A skeleton or frame-work of a sieve whose sides and ends consist of
flexible material the lower frame work to which is attached the sifting surface is
allowed to sink a desired distance into a box and hang loose.
Third. In sifting apparatus a skeleton or frame-work of a sieve or sieves whose
sides and ends consist of flexible material as the box or supports are reciprocated
in the ordinary way the sides and ends of the sifters bulge causing the lower frame-

page_text: work and sifting surface to toss independent of the box or supports which contain
the sifter or sifters.
Fourth. Sifting apparatus constructed substantially as herein set forth.
Dated this Twenty-third day of November 1895.
CHARLES HESSEY STUBLEY.