Method of and Apparatus for Treating Mineral Pitch. Page: 3 of 4
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549,399
sand or other impurities. As soon as sepa-
rated the asphalt and asphalt-oil rise in the
water contained in the vessel A, to be finally
removed at the spout A, as previously de-
5 scribed. The sand and other impurities pass
through the perforated bottom of the pan F
and guided by the sloping sides accumulate in
the hopper-bottom A', from which the said im-
purities can be let into the sand-receptacle C
to by the operator opening the valve B. This
my be done continuously by leaving the valve
B open a suflicient distance or from time to
time alternately opening and closing the
valve. As the sand falls through the recep-
I tacle C, which is filled with water, it is caught
in the current caused by inflow from pipe II
and carried by said current through the spout
D to the outside. This inflow of water from
the pipe IF is regulated so as to exactly equal
20 the water-escape from the spout D, thus pre-
venting any disturbance of water in the ves-
sel A. The sand-chamber C is entirely full
of water, as otherwise the water from the
vessel A -would drain into it.
25 It will be understood that the sand-recep-
tacle C may be omitted and the sand be dis-
charged through the valve-seat A2 directly
front the bottom A', the water escaping
through valve-seat Az being replaced by au-
30 tonmatic inflow through pipe II'; but in doing
this a considerable amount of the hot water
contained in the vessel A would be lost and
wasted.
By the arrangement described the sand is
35 continuously discharged through the spout
D. When desired, the spout D may be closed
and the sand and other impurities allowed
to accumulate in the receptacle C, from which
they may be removed from time to time by
40 closing the valve 13 and opening the manhole
E, allowing the sand and other impurities to
drop out. This removal may be accelerated
by flushing with water front the pipe III or
by other mechanical means.
45 By the action of the valve I and float 12 the
level of the water in the vessel A is con-
stantly maintained.
If desired, the coil of pipe G may be per-
forated, so that steam can escape through
50 the perforations to assist in quickly and thor-
oughly heating the material intercepted by
the pan F to separate the asphalt and oils
from the sand and other impurities.
IJaving thus fully described our invention,
55 we claim as new and desire to secure by Let-
ters Patent--
. TIhe herein described method for treat-
ing mineral pitch, consisting in subjecting
the material to the action of heat while sub-
6 merged in hot water to disintegrate the ma-
terial so as to separate the asphalt and as-
phalt oil front the impurities and to permit
the asphalt and oil to rise ih the water to the
surface thereof discharging the sand and
65 other imnpurities by gravity, and connecting
the sand discharge or outlet with a body of
water whereby the sand and other impuri-ties may be discharged from the heating ves-
sel without disturbance of the water therein,
substantially as described. 70
2. The herein described method for treat-
ing mineral pitch, consisting in subjecting
the material to the action of heat while sub-
merged in hot water to disintegrate the ma-
terial to separate the asphalt and asphalt oil 75
from the impurities and to permit the asphalt
and oil to rise in the water to the surface
thereof, discharging the sand and other im-
purities by gravity, connecting the sand dis-
charge or outlet with a body of water, and 80o
maintaining a current through said body of
water, whereby the sand and debris falling
therein may be continuously discharged, sub-
stantially as described.
3. In an apparatus for the treatment of 85
mineral pitch, the combination with a vessel
adapted to contain water and in which the
material is heated, of a water holder filled
with water and located at the outlet of said
vessel, communicating therewith and serv- 90
ing as a seal therefor, the said water holder
being provided with an outlet opening in its
bottom, and means for causing an inflow of
water approximately equal to the discharge,
whereby the sand and debris falling from the 95
heating vessel into said water holder are coin-
tinuouslyremoved therefrom, while the water
seal of the heating vessel is maintained, sub-
stantially as described.
4. An apparatus for the treatment of min- ioo
eral pitch, comprising a vessel in which the
materials heated, a sand receptacle arranged
below the said heating vessel and connected
therewith by a valve controlled opening, the
said sand receptacle being filled with water o05
and provided, with an outlet opening in its
bottom, and a pipe connected with a water
supply and communicating with the said sand
receptacle, the said pipe being arranged to
cause an inflow of water approximately equal i io
to the discharge whereby a current is pro-
duced which continuously carries the sand
and ddbris through the said outlet to the out-
side of the apparatus, substantially as shown
and described. I15
5. An apparatus for treating mrineralpitch,
comprising a vessel having a ]hopper-shaped
bottom containing an outlet, a water supply
pipe for the said vessel, to supply the latter
with water for its operation, a pan having a 120
perforated bottom and arranged in the said
vessel above the hopper-shaped bottom, a
steam coil for heating the water in the vessel,
below the said pan, and an inclined spout on
the upper end of the said vessel, to remove 125
the asphalt and asphalt oil floating on the
top of the water contained in the vessel, sub-
stantially as shown and described.
6. An apparatus for treating mineral pitch,
comprising a vessel having ani inclined spout 130
on its upper end and a hopper shaped bottom
containing an outlet, a perforated support for
the material, a water supply pipe for the said
vessel to supply the latter with water for its
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Sellers, Harvey Lee; Conyngton, Hugh Ronald & Conyngton, Thomas. Method of and Apparatus for Treating Mineral Pitch., patent, November 5, 1895; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth174131/m1/3/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.