Year: 1887

page_text: Date of Application, 24th Jan., 1887.
Specification Accepted, 1st Mar., 1887.
1, HENRY HARRIS LAKE of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 relates to improvements in middlings purifiers, and consists in the
novel construction, arrangement and combination of parts, all as hereinafter
described.
In the drawing which accompanies this specification.
Figure 1 is a front elevation of my improved purifier.
Figure 2 is a vertical central cross-section on the line a, a Figure 1.
Figure 3 is a horizontal section on the line y, Figure 1.
Figure 4 is an enlarged section of one of the middlings purifiers proper.
A revolving reel A enclosed in a proper case B, is supported by a suitable frame
and formes the upper portion of the machine. This reel may be of any of the
known descriptions used for bolting, and is covered with cloth of different grades of
fineness.
Care cant boards which direct the middlings bolted through the reel to the
conveyor D, and E are spouts into which the conveyor carries the middlings. The
conveyor is preferably so arranged that each grade of middlings is carried to one of
the spouts only, and conducted by it to the purifier proper, of which there is one io
every spout.
These purifiers are all of like construction, and are arranged as follows:-Each of
the spouts E extends downward, and connects at its lower end with a cylindrical
chamber F, of which the discharge end of the spout forms the eye. Concentrically
within this chamber and near the top thereof, so as to form passages N, O, is placed
the horizontal revolving dise G, which is secured on a vertical shaft H. The shaft II

page_text: is held in suitable bearings, and is provided with a pulley I by means of which motion
is transmitted to this shaft from the main shaft J. Below the revolving spreader
disc G is secured the stationary cylindrical wall R, provided at its lower end with an
outwardly deflecting flange 1, all so arranged as to form, between said deflection and
the cylindrical wall of the chamber F, an annular passage M, which connects with
the passages N, O and forms a vertical downward continuation thereof, terminating
in an outward annular discharge opening P, below the cylindrical wall of the
chamber F.
R is a cylindrical case concentrically enclosing the above described parts; it is
provided at its lower end with an inwardly inclined flange S and at its upper end
with a conical hood T, and so arranged as to form an outer annular passage U,
which, at its upper end, connects with the trunk fiue V. The lower end of this
passage extends beyond the annular opening P, and communicates with the outer air
through the annular opening Y, left between the flange S and the hopper Z secured
below it. The hopper has a discharge-opening into the conveyor a which
latter is placed underneath and connects with all the other purifiers in a similar
manner.
The trunk flues V are all connected with the flue 7, and suitable valves d are
placed in these connections. The flue / which leads to a suction fan c is also
provided, preferably, with one or more separator trunks e which at their lower ends
have discharge-openings provided with hinged valves into another conveyor . The
power is preferably conveyed to the main shaft 1, supported in suitable bearings
the front side of the machine, and from there it is transmitted by suitable belts or
chains to the other operating parts.
on
The operation of this machine is as follows-The middlings are fed to the bolting
reel A, which is constructed and arranged to operate in the usual manner. The
material passing through the cloth into the conveyor-trough underneath is carried,
each grade separately, into the spouts E, which conduct the material to the purifiers
proper. These purifiers all operate in like manner, and each one for itself performs
a complete operation. The material falls through the spout E on top of the revolving
disc and near the centre thereof, and by centrifugal force, which is quickly
imparted to it by the high speed with which said disc revolves, it is thrown
outwardly, and at the same time is spread in a thin and even sheet. In this form it
alls into the fannular passage M, and is then deflected outwardly by the flange L
through the opening P. Being still farther spread thereby, and at the same time
having lost its momentum, it is struck by a current of air produced by the suction.
This current of air passes in through the annular opening Y, and takes its course
upwardly toward the passage U, where it strikes the material spouting out through
the opening at a right angle, or nearly so, enabling it to load itself with all the
impurities and carry them away in an upward direction, while the purified middlings
fall to the bottom and are directed by the flange into the hopper Z, which
discharges them into the conveyer a. The material in dropping from the flange S
into the hopper is thus traversed a second time by an air current. The impurities
carried off by the air current are conducted upward through the passage U into the
trunk V, from which they are drawn through the air flue 6 into the suction fan and
discharged from there.
By means of the valves the air-currents passing through each purifier can be
regulated to act in the best manner, and should any good material be carried up into
the suction flue it will there drop out of the air-current into the separator trunks e,
which, for this purpose, are suitably arranged to collect such material and discharge it
into a separate conveyer g, from which it is disposed of in any desired manner for
further reduction.
It will be seen that as many of the purifiers proper as desired may be combined in
a single machine, and the purified product of each may be singly collected and
delivered to the proper rolls for further reduction.
It is evident that the construction of the machine described may be variously|
modified without departing from the nature of my invention.

page_text: My improved machine when compared with other machines of equal size in
present use, is able to accomplish a much larger amount of work in a given time
and as floor space is a great desideratum in mills the advantage gained thereby is
obvious.
Having now particularly described and ascertained the nature of my 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 :
First. In a middlings-purifier, the combination of the feed-spout E: the
conveyer 1, at the entrance of said spout the cylindrical case R the rotary
dise G arranged to spread the material by centrifugal force; the cylindrical
partition forming annular passages M, U, the said passage M being arranged to
receive and carry the material; the lateral discharge spout P'; and means for
producing an upward air-current through the passage Ü, all arranged and operating
substantially as described.
Second. In a middlings purifier, the combination of the horizontal revolving disc G;
the cylindrical case It; the cylindrical partition F, placed concentrically to the case
and disc and forming therewith and the wall K the passages N UO; the central
feed spout E, connecting with said passage N; the cylindrical wall K, having
outwardly deflecting flange Land forming the passage M and the annular discharge
opening and means for producing an upward air-current, all arranged and
operating to spread the material, substantially as described.
Third. In a middlings-purifier, the combination with the dise G, the partition F
the wall and the concentric inclosed case R, all arranged, as described, to form the
passage NUO, of the inwardly-inclined flange S at the lower end of said case; the
hopper Z below said flange, having an annular opening Y between the said hopper
and flange and means for producing an upward air-current, substantially as, and for
the purpose, specified.
Fourth. In a middlings-purifier the combination, with the rotary disc G, the
cylindrical wall K, the partition and the case R, constructed and arranged to form
the passage NU O, as described, of the trunk V communicating with the passage U,
the outwardly deflecting flange at the lower end of the wall K; the inwardly
inclined flange S at the lower end of the case R; the hopper Z, below said flange S,
having an annular opening Y between said flange and hopper and means for
producing an air-current through passage U and trunk V, substantially as, and for
the purpose, specified.
Fifth. The combination with the flue and the trunk-flues V, connected with said
flues, of valves at the points of connection of said flues separator-trunks e, cach
provided with a hinged valve; and the conveyer g, all combined, arranged and
operating substantially as, and for the purposes, specified.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.