Improvements in Shaking, Gyrating and Oscillating, and other Screening Machinery.
Year: 1897

page_text: Date of Application, 15th July, 1897
Complete Specification Left, 14th Mar., 1898-Accepted, 11th June, 1898
PROVISIONAL SPECIFICATION.
Improvements in Shaking, Gyrating and Oscillating, and other
Screening Machinery.
I, AUGUSTCS EDWARD STAYNER, Mining Tool Works, Heeley, Sheffield, in the
County of Derbyshire, Mining Tool Manufacturer, do hereby declare the nature
of this invention to be as follows:-
-
This invention relates to an improved apparatus for screening all classes of
material, the principle object being to render the screening area more efficient
& in the case of fine material to automatically keep the gauze, perforated plate, or
the like from becoming choked.
The invention consists in so constructing the screen that the gauze, perforated
plate, or the like shall constitute an inner shaking frame, the motion being given
by the shaking, gyrating or oscillation of the main or outer screen frame so as
to produce a rapid series of knocks or bumps. This may be brought about by
simply hanging the inner frame from the outer by chains, links, ropes or the
like and allowing it to swing loosely, or it may be provided with guides.
I may if necessary produce a somewhat similar effect by supporting the
screening plate, or gauze, or the like upon a number of balls arranged to move
eccentrically with the motion of the screen.
100x
Improvements in Shaking, Gyrating and Oscillating, and other
Screening Machinery.
I, AUGUSTUS EDWARD STAYNER, Mining Tool Works, Heeley, Sheffield, in the
County of Derbyshire, Mining Tool Manufacturer, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement:-
This invention relates to an improved apparatus for screening all classes of
material, the principle object being to render the screening area more efficient
and in case of fine material to keep the gauze, perforated plate or
the like from being choked.
The invention consists in so constructing the screen that the gauze perforated
plate, or the like shall constitute an inner shaking frame, the motion being given
by the shaking, gyrating or oscillation of the main or outer screen frame so as
to produce a rapid series of knocks or bumps. This may be brought about by
Pains R

page_text: simply hanging the inner frame from the outer by chains, links, ropes or the
like and allowing it to swing loosely or it may be provided with guides.
For purposes of illustration I have preferred to show my inner shaking frame
suspended from the outer by means of links, but it is obvious that I may if it is
deemed desirable replace these by any of the aforementioned chains ropes or the
like. Fig. 1 is a longitudinal section of a general purpose screen or sifter, fitted
with my inner shaking frame, also shewn in longitudinal section.
Fig. 2, is a transverse section of the same on the line A, B. C, is the general
purpose screen frame, D and D₁ being bars placed across the frame for purposes
hereinafter described, which may or may not be fitted with suitable cushions E.
F is my inner shaking frame suspended from C by means of plates or brackets G
and links H, freely swinging on pins or pivots I, J.
It will be readily understood, therefore, that as soon as the frame C is set in
motion it will in turn impart a motion to the inner shaking frame F, which
swinging loosely on the beforementioned pins or pivots I, J, will come sharply
into contact with bars D, D¹ or their attached cushions E & that the combination
of the motion imparted to the frame C & the inner shaking frame F will
produce a series of sharp bumps or knocks for the purpose herein before mentioned.
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: :-
I. The combination with an outer screening frame of an inner shaking frame
for the purposes herein set forth.