Float-Controlled Liquid-Gaging and Cut-Off Means. Page: 3 of 4
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UNITED STATESPATENT OFFICE.
GRANVILLE J. WALDREP, OF FANNETT, TEXAS.
FLOAT-CONTROLLED LIQUID-GAGING AND CUT-OFF MEANS.Specification of Letters Patent. Patented June 29, 1920.
Application filed August 4, 1919. Serial No. 315,158.To all whom it may concern:
Be it known that I, GRANVILLE J. WAL-
DREP, a citizen of the United States, resid-
ing at Fannett, in the county of Jefferson
5 and State of Texas, have invented anew and
useful Float-Controlled Liquid-Gaging and
Cut-Off Means, of which the following is a
specification.
This invention relates to an automatic
10 cut off device for oil tanks, and has for its
object the provision of a device for indicat-
ing the amount of water that accumulates
in an oil tank and that will automatically
close a discharge opening when all the water
15 has been discharged from the tank.
A further object is the novel form and ar-
rangement of valve, valve guide and indicat-
ing mechanism.
Other objects will present themselves, as
20 the description proceeds, the invention re-
siding in the novel combination and ar-
rangement of parts to be.further described
and claimed, it being understood that slight
changes may be made within the scope of
25 what is claimed, without departing from the
spirit or sacrificing any of the advantages of
the invention.
In the drawing forming a part of this in-
vention:
So Figure 1 is a vertical section of the device
there being parts shown in elevation.
Fig. 2 is a sectional plan view on line 2-2
of Fig. 1.
Fig. 3 is a detail section on line 3-3 of
85 Fig. 1.
Fig. 4 is a detail section on line 4-4 of
Fig. 1.
Referring to the drawing, there is shown
at 1 atank of ordinary construction, having
40 a drain outlet 2, which is provided with a
valve 3. Secured to the outlet pipe 2, with-
in the tank is an elbow 4, the open end of
which is upturned and shaped to form a
valve seat 5.
45 A pair of bars 6 are clamped or otherwise
secured to the upstanding neck of the elbow
4, and are provided at opposite ends with
sockets 7 to receive the lower ends of guide
rods 8; the said rods extend to the top of the
50 tank and are secured thereto. A float 9,
properly weighted to float on the water in
the tank and not be floated by oil on top of
the water, is mounted between the guide
rods 8. A top plate 10 secured to the float
55,projects over the sides thereof and has
formed therein notches 11 which engage therods 8 to guide the float as it rises and falls
in the tank. Secured to the bottom of the
float is a cone shaped valve closure 12 adapt-
ed to rest in the valve seat 5 and shut off the 60
discharge of water from the tank, when the
float drops to the level shown in dotted lines.
An indicator 13 secured to the float 9
moves through an opening 15 in the top of
the tank and is provided with graduations 65
14, which indicate, when compared with the
top of the tank, the height of water in the
tank.
A second float 16 has an opening 17
through which the stem 13 passes; the float 70
16 is adapted to rest on the oil and has a
stem 18 provided with graduations 19 which
being visible above the top of the tank mark
the height of oil in the tank. The stem 13
is provided with a longitudinal groove 20 on 75
either side, into which projects a rib 21,
formed on the stem 18. This arrangement
prevents relative rotary movement between
the two stems, and prevents the graduations
on the stem 13 being covered by the stem 18. 80
In use, an observation of the indicators
will be possible at any time and will indicate
to an operator when an excessive amount of
water accumulates in the tank, whereupon
the valve 3 may be opened and the water 85
withdrawn, the float following the level of
the water until the cone 12 seats in the valve
seat 5 and automatically checks the dis-
charge.
The present invention has been found in 90
practical use, to provide a simple and effi-
cient device for separating water from the
oil after pumping from an oil well.
The interengaging feature of the 'float
stems, together with the guide members pre- 95
vent any rotative movement'of the stems, so
that an operator may always inspect the in-
dices from a given point. The guide also
serves to properly seat the valve closure, the
cone shape of the closure further insuring ioo
proper seating.
Having thus described the invention, what'
is claimed is
1. In a device of the class described, a
tank having an outlet provided with a valve 105
seat, a float adapted to be floated by liquid-of
given specific gravity and having a valve
closure for closing the valve seat when the
said liquid is discharged from the tank, and
a second float adapted to be floated by liquid 10
of less specific gravity than the first men-
tioned liquid and means provided for each1,344,663.
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Waldrep, Granville J. Float-Controlled Liquid-Gaging and Cut-Off Means., patent, June 29, 1920; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257052/m1/3/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.