Improvements in Rotary Sifters.
Year: 1897

page_text: Date of Application, 8th Feb., 1897-Accepted, 20th Mar., 1897
COMPLETE SPECIFICATION.
Improvements in Rotary Sifters.
I, ADOLPH HAENICHEN, of 669 East 23rd Street, in the City of Paterson,
County of Passaic, and State of New Jersey, U.S.A., Silk Manufacturer, do
hereby declare the nature of this invention, and in what manner the same is to
he performed, to be particularly described and ascertained in and by the following
statement :-
The object of this invention is to provide a rotary sifter, especially applicable
for coal, ashes, flour, etc., of simple, strong and durable construction, quick and
reliable in operation, and easily and conveniently handled.
The invention consists in the improved rotary sifter, and in the combination and
arrangement of the various parts thereof, substantially as will be hereinafter more
fully described and finally embodied in the clauses of the claims.
In the accompanying drawing;
Fig. 1, is a side elevation of my improved sifter, illustrated in connection with
a portion of can or vessel;
1
Fig. 2, a top plan view of Fig. 1, the lid or cover being removed, and
Fig. 3, an enlarged detail view showing the means for attaching the sieve or
screen to its supporting flanges.
In said drawings, a represents a frame or bed-plate, preferably circular, and
provided with a square or rectangular opening c, and on its underside with a series
of alternately arranged curved lugs or projections a¹, a 2, a 3, concentric with the
periphery of the frame or bed-plate, and adapted to engage the edge of a circular
can or vessel. By having the said lugs arranged in circles of different radii, the
said frame or bed-plate can be used on cans of different diameters, as will be
manifest. Secured on 'the frame and surrounding the opening e is the box or
receptacle b, provided with a lid d, hinged as at d, and adapted to be securely
locked to said box by means of a lock or catch d 2 of any suitable construction.
Two opposite sides of said box or receptacle b are provided with vertically
arranged elongated slots a 4, extending to about the center thereof and adapted to
form the bearings for the rounded ends e of the square shaft e'. At or near each
end of said shaft and within the box bare secured the circular disks f, to the
annularly reduced portions of which, are secured the ends of the cylindrical
shaped sieve or screen 1'. The said ends are firmly held in position by means of
the metal strips or bands h, provided with a series of intermediate depressions or
indentations, adapted to engage the said disks f, and having their free ends
secured to said disks by screws h2, all clearly shown in Figs. 2 and 3. A lid or
cover 2 for the cylindrical sieve or screen is formed by segmental shaped portions
of the disks f, and of a portion of the sieve or screen proper, and is hinged thereto,
as at f3, and provided with a catch or lock f 4 of suitable construction.
sides of the lid or cover d for the box or receptacle b, and in alignment with the
elongated slots a 4 in the sides of the latter, are secured the downwardly extending
plates d adapted to cover or close up the said elongated slots, and also, by
engaging the rounded portions e of the square shaft e¹, to prevent the removal of
the latter.
To the
On one end of the shaft e' is secured a crank e 3 with handle e 4 for conveniently
rotating the said shaft, which latter is provided-within the cylindrical sieve or

page_text: screen with a series of arms or breakers g, arranged alternately, and preferably
at right angles to said shaft. The corners of the box or receptacle bare provided
with inclined blocks i, adapted to more completely prevent the escape of dust,
should the can or vessel A be of small diameter and thus come within the corners
of the opening.
If preferred, the shaft e' does not need to extend across the cylindrical sieve
or screen, in which case, the rounded portions e are secured to annular flanges e 2,
which in turn are firmly attached to the disks f, as will be manifest.
In operation, the lid d of box b and the lid 2 of the cylindrical sieve are
opened, and after the material to be sifted has been placed in the said sieve, are
again closed.
The shaft el, carrying the sieve, is then rotated causing the
material to be thrown around, when the dust or smaller portions will penetrate the
meshes and drop into the can or vessel A, whilst the larger portions will be
retained in the said sieve. The arms or breakers greatly facilitate the agitation,
as will be manifest. When the operation of sifting has been completed, the lid d
is opened, thus releasing the ends of the shaft e¹, and all owing the sieve to be.
withdrawn, for the purpose of emptying.
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:
1. The combination with a frame or bed-plate provided with a central opening,
of a box or receptacle on said frame and surrounding said opening and provided
at opposite sides with vertically arranged elongated slots, of a shaft removably
arranged in said slots, a disk secured on said shaft and at or near each end thereof,
a screen connecting the edges of said disks and provided with an opening, a lid for
said opening, a cover for the box or receptacle, a plate projecting from each side
of said cover and in alignment with the elongated slots in the box and adapted to
engage the shaft, and means for operating said shaft, all said parts, substantially
as and for the purposes described.
2. The combination with a frame or bed-plate provided with a central opening,
of a box or receptacle on said frame and surrounding said opening and provided
at opposite sides with vertically arranged elongated slots, of a shaft removably
arranged in said slots, a disk secured on said shaft and at or near each end thereof,
a screen connecting the edges of said disks and provided with an opening, a lid
for said opening, a cover for the box or receptacle, a plate projecting from each
side of said cover and in alignment with the elongated slots in the box and adapted
to engage the shaft, a series of arms or breakers alternately arranged on the shaft
and between said disks, and means for operating said shaft, all said parts,
substantially as and for the purposes described.
3. The combination with a frame or bed-plate provided with a central opening,
of a box or receptacle on said frame and surrounding said opening and provided
at opposite sides with vertically arranged elongated slots, of a shaft removably
arranged in said slots, a disk secured on said shaft and at or near each end thereof,
a screen connecting the edges of said disks and provided with an opening, a lid
for said opening, a cover for the box or receptacle, a plate projecting from each
side of said cover and in aligument with the elongated slots in the box and
adapted to engage the shaft, a series of arms or breakers alternately arranged on
the shaft and between said disks, means for operating the shaft, and means for
removably securing the frame or bed plate to receptacles of different diameters,
substantially as and for the purposes described.
4. The combination with a frame or bed-plate provided with a central opening,
of a box on said frame and surrounding said opening, a rotary sifter removably
arranged in said box, and a series of alternately arranged lugs on the underside of
the frame or bed-plate and in circles of different radii, substantially as and for the
purposes described.
5. The combination with a frame or bed-plate provided with a central opening,

page_text: of a box on said frame and surrounding the opening and provided with elongated
vertical slots, a shaft removably arranged in said slots, a cylindrical sifter on said
shaft, a cover for said box, a plate depending from opposite sides of said cover and
in alignment with said slots and adapted to engage the said shaft, and a series of
alternately arranged lugs on the underside of the frame or bed-plate and in circles
of different radii, substantially as and for the purposes described.
6. The combination with a frame or bed-plate provided with a central opening,
of a box on said frame and surrounding said opening and provided with elongated
vertical slots, a shaft removably arranged in said slots, a cylindrical sifter on said
shaft, a cover for said box, and a plate depending from opposite sides of said
cover and in alignment with said slots and adapted to engage the said shaft,
substantially as described.
Dated this 8th day of February 1897.
J. P. BAYLY,
18 Fulham Place, London, W., Agent for the Applicant..