Improved Apparatus or Device for Sifting Flour and the like.
Year: 1897

page_text: Date of Application, 19th Feb., 1897-Accented, 27th Mar., 1897
COMPLETE SPECIFICATION.
Improved Apparatus or Device for Sifting Flour and the like.
I, HENRY HAMMOND HILLMAN of 75 Nottingham Road, Derby in the
County of Derby, Flour-dealer, 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 my invention is to provide an apparatus or device for sifting flour
and the like that will facilitate the extraction of dirt or any hard substance, jute or
other foreign matter therefrom.
In describing my invention reference will be had to the accompanying sheet of
drawings.
Figure 1 is a vertical longitudinal section on line a. a. of Figure 2.
Figure 2 is a cross section on line b. b. of Figure 1.
In carrying out my said invention I provide a box or hopper A, A' to be placed
in any suitable position either alone, or under, or in connection with a delivery
spout through which the flour or the like is delivered to the sifter, the delivery
spout not being shewn upon the drawings, the lower part A of this box or hopper
contains a sieve B, inside this sieve an open drum is arranged, consisting of any
desired number of sides C containing sets of brushes D which are set diagonally
so that as they are revolved by means of the handle E, or by power if desired, they
come in contact with the sieve brushing the smaller particles through it and
carrying the coarser and foreign substances towards the open space F in the centre,
the lighter substances of a clinging or entangling nature such as jute or the like
becoming attached to the brushes.
The upper part A¹ of the box or hopper is secured to the lower by means of
adjustable and detachable hinges G.
I provide a recessed portion H in the centre of the sieve to receive the coarser
portions and refuse. Any suitable adjustable bearings may be employed for the
ends of the shaft I carrying the revolving open drum and any suitable means may
be employed for fixing the said drum on its shaft.
As a great deal of the finer particles will doubtless find their way to the central
recessed portion H in the sieve I may provide any suitable agitating device such
as fixing one set of bristles or the like K upon one section only of the drum 60
that once in every revolution of the drum the particles contained in the recessed
portion will be cleared of the finer matter.
The recessed portion H of the sieve may either be perforated as shewn or of a
plain trough-like form.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what
I claim is
The improved apparatus or device for sifting flour or the like consisting of a
box or hopper in sections A, A' with adjustable hinges G and containing a
sieve B with recessed annular central portion H in combination with a revolving
drum carrying brushes D adapted to carry the coarser or foreign matter into the

page_text: recessed portion H of the sieve aforesaid the said drum also carrying an inter-
mittant agitating device such as the brush K substantially as described and
illustrated.
Dated this 18th day of February 1897.
W. SWINDELL,
Imperial Chambers, Albert Street, Derby, Agent for the Applicant.