Improvements in Belts for Ore Concentrating Machines.
Year: 1893

page_text: Date of Application, 23rd Nov., 1893
Complete Specification Left. 21st Aug., 1894-Accepted, 22nd Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Belts for Ore Concentrating Machines.
A communication from abroad by THE FRUE VANNING MACHINE COMPANY, of
2, Wall Street, New York, United States of America.
I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane, in the County of
Middlesex, Fellow of the Chartered Institute of Patent Agents, do hereby declare
the nature of this invertion to be as follows:-
In concentrating and vanning machines there is now commonly employed a belt
of rubber, canvas, or the like such belt travelling over rollers at either end of the
machine and being provided with side flanges to prevent the ore and the water
from passing off the side of the belt. The flanges when travelling round the rollers
are submitted to very considerable strain, and it is at the edges of same that
splits or tearing is most likely to occur. To obviate this it has heretofore been
proposed to make the flange of loose or corrugated material so that the strain
will not be so injurious.
According to the present invention it is proposed to form the flanges of either
a tube with a practically flattened face on the belt side, or of what may be called a
goose-neck section in which the tube is not completed, the end of the goose-neck
being turned outward or inward and being brought part way down the flange, thus
providing a top surface which does not present a plain edge, and such edge may, if
preferred, be provided with a beading which will also tend to prevent tearing or
splitting thereon.
The result of the new method of construction is that in the case of the completed
pipe flange there is a flattening down of the same in passing around the rollers of
the machines, which relieves the strain otherwise produced on an ordinary flange,
and in the case of the goose-neck section there is a bending outwards or inwards of
the flange equally effective in reducing the strain which would otherwise occur on
the edge of a vertical flange.
Dated the 23rd day of November 1893
A communication from abroad by THE FRUE VANNING MACHINE COMPANY, of
2, Wall Street, New York, United States of America.
I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane, in the County
of Middlesex, Fellow of the Chartered Institute of Patent Agents, do hereby
declare the nature of this invention and in what manner the saine is to be
performed, to be particularly described and ascertained in and by the following
statement:-
In concentrating and vanning machines there is now commonly employed a belt
of rubber, canvas, or the like, such belt travelling over rollers at either end of
the machine, and being provided with side flanges to prevent the ore and the
water from passing off the side of the belt. The flanges when travelling round
the rollers are submitted to very considerable strain, and it is at the edges of
Prina 871

page_text: same that splits or tearing is most likely to occur. To obviate this it has heretofore
been proposed to make the flange of loose or corrugated material so that the strain
will not be so injurious.
According to the present invention it is proposed to form the flanges of either a
tube or a portion of a tube with a practically flattened face on the belt side, or of
what may be called a goose-neck section in which the tube is not completed, the end
of the goose-neck being turned outward or inward and being brought part way
down the flange, thus providing a top surface which does not present a plain edge,
and such edge may, if preferred, be provided with a beading which will also tend to
prevent tearing or splitting thereon or the beading may be placed on the edge of
the flange in other ways.
In the accompanying drawings which are employed to illustrate the invention,
three forms of belts are shown though other modifications may be employed.
Fig. 1 shows a cross section of a belt having the sides formed of tubes a a which
have more or less flattened faces bb on the belt side.
Fig. 2 has sides formed of a goose-neck section c which will bend inward when
the belt is passing around the rollers and
Fig. 3 shows another form of flange having a strengthening bead d.
The result of the new method of construction is that in the case of the completed
tube flange there is a flattening down of the same in passing around the rollers of
the machines, which relieves the strain otherwise produced on an ordinary flange,
and in the case of the goose-neck section and the beaded section there is a bending
outwards or inwards of the flange equally effective in reducing the strain which
would otherwise occur on the edge of a vertical flange.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as cominunicated to me from
abroad by my foreign correspondents, I declare that what I claim is :-
―
1. A belt for ore concentrating machines provided with flanges formed of tubes
or portions of tubes having flattened faces on the belt side substantially as and for
the purpose described.
2. A belt for ore concentrating machines provided with flanges of a goose-neck
section, substantially as and for the purpose described.
3. A belt for ore concentrating machines having a flange provided with a
beading which will tend to prevent tearing or splitting substantially as described.
4. The improved belts for ore concentrating machines constructed substantially
as described and illustrated.
Dated this 21st day of August 1894.
PHILIP M. JUSTICE.