Water-Purifier for Ice-Machines. Page: 2 of 4
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UNITED STATESPATENT OFFICE.
JOHN JACOB SCHRADE, OF WACO, TEXAS.
WATER-PURIFIER FOR ICE-MACHINES.Specification of Letters Patent. Patented Jan. 31, 1911.
Application filed January 7, 1910, Serial No. 536,795. Renewed November 1, 1910. Serial No. 590,157.
To all whom it may concern:
Be it known that I, JOHN J. SCHRADE, a
citizen of the United States, and a resident-
of Waco, in the county of McLennan and
5 State of Texas, have made certain new and
useful Improvements in Water-Purifiers for
Ice-Machines, of which, the following is a
specification.
My invention is an improvement in water
10 purifiers for ice machines, and consists in
certain novel constructions, and combina-
tions of parts, hereinafter described and
claimed.
The object of the invention is to provide
15 a machine of the character specified espe-
cially adapted for the purification of water
for artificial ice making, but adapted also
for the purification of water for any pur-
pose.
20 In the drawings is shown a diagrammatic
view of the improvement.
The condensed water used in artificial ice
making contains a certain amount of oil
and other impurities, the principal part of
25 the oil being derived from the necessary
handling of the water during the process
of condensing. The water comes from the
condenser through the pipe 1 to the reser-
voir 2 by gravity, and the depth of the
30 water is controlled by a float 3 shown in
dotted lines.
A filter is arranged adjacent to the reser-
voir, the said filter comprising a casing 4
having a base 5, and a cover 6, and is filled
35 about two thirds full of filtering material 7,
preferably sand. The casing is provided
with a man-hole 8, and with a discharge
pipe 9 leading from its bottom to a waste
pipe 10, the pipe 9 being normally closed
40 by a valve 9a.
A pipe 11 leads from the bottom of the
filter to the reboiler 12, and a branch 13
leads from the said pipe to the upper branch
14 of a cross. The lower branch 15 of the
45 cross is connected by a pipe 16 with the
filter, the said pipe extending transversely
across the filter just eighteen inches under
the level of the filtering material, and be-
ing provided with a cap 17 having a plu-
50 rality of discharge openings 18.
A valve 19 is interposed in the pipe 13,
and a valve 20 is interposed in the pipe 16.
A pipe 21 connects one lateral branch 23 of
the cross with the upper end of the filter
5 sing, and a valve 24 is interposed in thepipe, and the other lateral branch 25 of the
cross is connected by a pipe 22 with a force
pump 26, a valve 27 being interposed in the
saicf pipe.
The pump 26 is of any preferred form, 60
and is connected by a pipe 28 having a valve
29, with the lower end of the reservoir. A
branch pipe 30 leads from the pipe 28 to the
upper end of the reboiler, and a pipe 31
having a valve 32 extends laterally from the 65
branch, and a funnel 3 is connected with
the free end thereof, the said funnel being
adapted to contain about one gallon of gaso-
lene.
The waste pipe 10 has interposed in the 70
length thereof a tee 34, and a funnel 35 is
connected with the lateral branch of the tee.
A pipe 36 having a valve 37, leads from the
top of the filter casing and discharges into
the funnel, and one end of the waste pipe is 75
connected by a pipe 38 having a valve 39
with the lower end of the reboiler. The
waste pipe 10 is also connected with the
bottom of the reservoir 2 by a pipe 40 hav-
ing a valve 41, and with the top of the 80
reservoir by a pipe 42. The reboiler 3 is
provided with a steam inlet pipe 43, and
with a discharge pipe 44 leading to the
cooling coils, and controlled by a valve 45,
which is operated by the float 3 before men- 85
tioned in the reservoir.
A cord 46 connected with the float passes
over a pulley 47, to and over a wheel 48
connected with the valve 45, and the lower
end of the cord is provided with a weightg90
49. When the water in the reservoir reaches
a predetermined height the movement of the
cord rotates the wheel and opens the valve.
Both the reservoir and the reboiler are
provided with vent pipes 50 and 51 respec- 95
tively, in the reservoir to permit the escape
of air when the reservoir fills, and for a
similar purpose in the reboiler when the air
is expanded by the heat.
In operation, the condensed water passes 1oo
by gravity from the usual condensers to the
reservoir. From the reservoir it is taken
through the pipe 28 by the pump 26 and
forced through the pipes 22 and 21 to the
upper end of the filter casing, the valves 105
29-27 and 24 being open, and the valves
32-19 and 20 being closed. The water
passes into the filter casing, and filters down
through the filtering material, and is dis-
charged through the pipe 11 to the lower end 110953,169,
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Schrade, John Jacob. Water-Purifier for Ice-Machines., patent, January 31, 1911; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth511038/m1/2/?q=%22%22~1: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.