Improved Apparatus for Breaking, Crushing and Screening Refuse Ashes from Furnaces and the like.
Year: 1899

page_text: Improved Apparatus for Breaking, Crushing and Screening Refuse
Ashes from Furnaces and the like.
I, SAMUEL BALDWIN, of Bethesda Street Iron Works, Burnley, in the County
of Lancaster, Engineer, do hereby declare the nature of this invention to be
as follows:-
This improved apparatus is designed principally for breaking or crushing and
screening the refuse ashes and clinkers from furnaces for the purpose of making
filter beds for sewage, and the like, but the said apparatus may also be employed
for breaking or crushing and screening similar materials for other purposes.
The improved apparatus consists principally of two pairs of crushing rollers
mounted one pair above the other in adjustable bearings upon a suitable frame.
The upper pair of rollers are coarsely grooved in a circumferential direction
and the lower pair of rollers which are of a much larger diameter (say about
three times) are also grooved circumferentially, but to a much finer pitch than
the upper ones, each pair of rollers being geared together so that their surfaces
run in the same direction and at a uniform speed so that they have a direct
breaking or crushing effect without any slip or grinding action.
The whole series of rollers are driven by spur gearing from a main driving
shaft so arranged that the upper pair or breaking rollers shall run at a slower
surface speed than the lower or crushing rollers which may revolve at a con-
siderably increased surface speed.
Beneath the lower pair of rollers I arrange, and drive from the same gearing,
a revolving screen of a cylindrical form with its axis inclined from the receiving
to the delivery end. This screen is provided with suitable perforations which
are so graduated as to deliver the crushed material in two or more heaps of
different sizes as may be required.
This screen is also provided with two or more "flappers" of leather or other
suitable material which being attached to a revolving shaft will strike against
the revolving screen at intervals so as to prevent it from becoming choked by
the crushed material.
Dated this 19th day of December 1899.
GEO. DAVIES & SON,
Agents for the Applicant,
4, St. Ann's Square, Manchester.

page_text: Improved Apparatus for Breaking, Crushing and Screening Refuse
Ashes from Furnaces and the like.
I, SAMUEL BALDWIN, of Bethesda Street Iron Works, Burnley, in the County
of Lancaster, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
This improved apparatus is designed principally for breaking or crushing and
screening the refuse ashes and clinkers from furnaces for the purpose of making
filter beds for sewage, and the like, but the said apparatus may also be em-
ployed for breaking or crushing and screening similar materials for other pur-
poses.
The manner in which my said invention is to be performed or carried into
practical effect will be readily understood on reference to the sheet of drawings
hereunto annexed and the following explanation thereof.
The improved apparatus consists principally of two pairs of crushing rollers
mounted one pair above the other in adjustable bearings upon a suitable frame.
Fig. 1 is an end elevation, and Fig. 2 a front view of my improved breaking or
crushing apparatus. Fig. 3 is a plan view of the upper or breaking rollers and
their gearing, and Fig. 4 is a similar view of the lower crushing rollers and their
respective gearing.
Fig. 5 is a sectional elevation of flappers applied to an ordinary revolving
screen.
a is the framing of the apparatus, and b the bearings.
The upper pair of rollers c (see Figs. 2 and 3) are coarsely grooved in a cir-
cumferential direction, and may also be provided with one longitudinal groove c
in each roller which assists in distributing the material fed into the machine,
and so gains a more uniform grinding action. The lower pair of rollers & which
are of a much larger diameter (say about three times) are also grooved circum-
ferentially, but to a much finer pitch than the upper ones (see Figs. 2 and 4)
each pair of rollers being geared together by spur wheels e and f respectively so
that their adjacent surfaces run in the same direction and at uniform speed
so as to have a direct breaking or crushing effect without any slip or grinding
action.
The whole series of rollers are driven by spur gearing g from a main driving
shaft h, such gearing g being so arranged that the upper pair or breaking rollers c
shall run at a slower surface speed than the lower pair or crushing rollers d
which may revolve at a considerably increased surface speed.
Beneath the lower pair of rollers d, I arrange and drive from the same gear-
ing a revolving screen of a cylindrical form with its axes inclined from the
receiving towards the delivery end. This screen may be of the ordinary form
provided with suitable perforations which are so graduated as to deliver the
crushed material in two or more heaps of different sizes as may be required and
therefore I have not considered it necessary to illustrate the same on the annexed
drawings, but according to my invention I provide such screen with two or
more flappers" as j represented in Fig. 5. Said flappers may be made of
leather or other suitable material, which being attached to a revolving shaft k
will strike against the revolving screen 7 at intervals so as to prevent it from
becoming choked by the crushed material.
66

page_text: 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-
1. The combination in one self contained machine of a pair of coarse grooved
breaking rollers and a pair of finer grooved crushing rollers revolving at a quicker
surface speed (one pair above the other) substantially as hereinbefore described
and illustrated by the drawings annexed.
2. The combination with such breaking and crushing machine of a revolving
screen provided with flappers" substantially as herein before described.
"
Dated this 14th day of September 1900.
GEO. DAVIES & SON,
Agents for the Applicant,
4, St. Ann's Square, Manchester.