Improvements in Cylindrical Sifting or Sorting Apparatus.
Year: 1895

page_text: Date of Application, 10th Sept., 1895-Accepted, 19th Oct., 1895
COMPLETE SPECIFICATION.
Improvements in Cylindrical Sifting or Sorting Apparatus.
A. communication by G. J. LENZ, of 9 Glattbacherstrasse, Aschaffenburg, in the
Empire of Germany, Manufacturer.
I, WILLIAM PHILLIPS THOMPSON F.C.S., M.I.M.E. of The Agency for
Foreign Patent Solicitors 6, Lord Street, Liverpool and 6 Bank Street,
Manchester both in the County of Lancaster, 118, New Street, Birmingham in
the County of Warwick and 31 High Holborn in the County of Middlesex,
Civil Engineer, 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 :-
This invention has for its object a sorting or sifting cylinder in which the sieving
surface is formed of a series of bars of elongated or flattened cross-section,
arranged parallel to one another and fixed in the ends or flanges of the cylinder in
such a way that the width of the passage between the bars may be altered by
turning or rotating simultaneously all the bars.
The sorting or sifting cylinder arranged according to this invention is essentially
characterized by the axes of the bars which are revoluble in the cylinder ends or
flanges having at one end arms, which are connected with a revoluble ring, through
the rotation of which the arms are moved, and all the bars simultaneously
adjusted.
In the accompanying drawings
Figure 1 shows the sifting or sorting cylinder partly in elevation and partly in
longitudinal section.
Figure 2 shows a front view of a part of the cylinder end or flange, together
with the adjusting device.
Figure 3 is a cross section of a part of the cylinder.
Figure 4 is a longitudinal section on the line k-e of Figure 2 of a part of the
shifting device.
Figure 5 is a plan view of the mounting of the bars, and
Figure 6 a cross section showing the shape of the cylinder bars.
The separating, sorting or sifting cylinder is composed of a number of bars A
of elongated or flattened section, the axes of rotation a of which (which may be
eccentric or even concentric) are revoluble in the ends or flanges B B' of the
cylinder. It is preferable to give the bars A the form of section shown in
Figure 6. Rings C for stiffening the bars A are held apart at equal distances by
means of inserted intermediate pieces c and the cylindrical parts a² of the bars are
mounted in the said rings. The bars A. are retained in the ends or flanges E and
the rings C by ring segments d.
As the bars have an elongated cross-section, the width of the interstices of the
sieving cylinder may be increased or diminished by turning these bars.
In order that all the bars may be simultaneously adjusted, their axes of rotation
are provided at one end with crank arms a², Figure 4, the crank pins of which are
mounted between the teeth of a ring y, which is revolubly or adjustably arranged
on the cylinder end or flange B. By turning the ring y by means of an arm z in
the direction of the arrow a, Figure 2, the crank arms a² are adjusted, the bars A
following the movement of the arms.

page_text: As shown in Figure 1, the shaft F of the cylinder passes through central
sockets or bosses of the cylinder ends or flanges B, and several cylinders I, II
may be arranged on one shaft, each cylinder being provided with its own adjusting
device so that the cylinder is divided into compartments, which, according to
requirements may be adjusted to the same or different widths of interstice.
connection of the divisions I and II takes place in the manner ordinarily employed
in the case of grain sorting machines. The sifting cylinder is provided with an
inlet g and with outlet h.
The
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is :-
A cylindrical sorting or sifting apparatus with revoluble bars for adjusting the
interstices of the sieving surfaces, characterized by crank arms (a2) mounted on
the bar ends outside one end or flange of the cylinder, and pins on said arms
engaging between the teeth of a ring (y) revoluble on the cylinder end or flange,
so that said ring when turned carries the crank arms with it and thereby turns the
sieve bars on their axes substantially as described.
Dated this 9th day of September 1895.1
WM. P. THOMPSON & Co.,
Agents.