close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2107340

код для вставки
Patented Feb. 8, 19.38
2,107,3e0
UNÃTED STATES
ÀTENT OFFÍCE
2,107,340
WASHER
Ireneé P. Pedrick, Philadelphia, Pa., assigner to
William Sellers ¿t Company, Incorporated,
Philadelphia, Pat, a corporation of Pennsyl
Vania
Application October 9, 1934, Serial No. 747,559
5 Claims. (Cl. 299-84)
This invention relates to'an improvement in cates with a water chamber g in communication
locomotive washer.
with a water inlet h, in the casing, which is adapt
As is well known, it is customary to wash loco
ed to be connected by a conduit h' with a source
motives when they are serviced by the removal of water. The section f’ of the forcing tube ex
of ashes and replenishment of their coal and tends through the end of the casing and is
water supplies.
threaded at its forward end for the reception of
For .the washing of a locomotive it is customary
to pass the locomotive between stations, as plat
forms, and to direct upon it from both sides a
plurality of sprays of water containing a grease
solvent, as coal oil, Oakite (trisodium phosphate)
or the like.
Heretofore the washing apparatus has been
relatively complicated and expensive, consisting
of a pressure tank containing `the solvent, or
provided with a solvent feed, and a powerful
pump whereby water is Vsupplied to the tank and
pressure therein maintained. Hose lines leading
from the pressure tank are connected with
f i sprayer heads held by the washers, who direct
the sprays upon the locomotive as it passes be
tween the stations.
Now in accordance with this invention there is
provided a simple and inexpensive device where
L, by the required high pressure spray of water
and solvent for the washing of a locomotive is
provided with maximum eli'iciency, with exact
regulation of the desired proportions of solvent
and water, and at a minimum of expense for
, apparatus and for operation.
Having indicated in a general way the nature
and purpose of this invention, I will proceed to
a detailed description thereof with reference to
the accompanying drawing in which:
:1 3
Figure 1 is a longitudinal sectional View show
ing an'embodiment of this invention.
a house coupling x.
Surrounding the forcing tube is an overflow
chamber z' adapted for communication with an
overflow discharge y' through a port controlled 10
by a valve 1c, and in communication with the
forcing tube through a port y therein between
the sections f and f’.
Y
'
A passage m, formed in the casing a, affords
communication between the overflow chamber z' 15
and the atmosphere. The passage mis controlled
by means of an adjustable needle valve n;
Referring now to Figure 2, the passage >m, in
casing a, controlled by adjustable needle valve n
is arranged to be connected with a source of
solvent or solution through a conduit r controlled
by a spring ball check valve s.
In the embodiment shown in Figure 1 and as
modified as shown in Figure 2 the forcing tube
section f may, if desired, be provided with aper
25
tures t.
In practice, using the embodiment shown in
Figure 1, a suitable hose equipped with a spray
head is coupled to the end of the section f’ of
the forcing tube and steam and water turned on,
steam passing through nozzle c will force water, 30
from the water chamber g, through the forcing
tube. At the same time, partial condensation of
steam on meeting the water at the discharge end
of steam nozzle c will create a partial vacuum
which will operate to lift solvent, as coal oil, an 35
Figure 2 is a detail sectional View showing a A “Oakite” solution, or the like, from the supply
modification in the structure of the embodiment
of this invention shown in Figure 1.
`
Referring more particularly to Figure l, a in
dicates a casing which may be made of any suit
able material and may, for example, be a casting.
Into one end of the casing a extends a nozzle b,
controlled by an adjustable needle valve l, and
¿S3 adapted to be connected through a conduit o,
controlled by a gravity ball check valve p, with a
source of solvent or solution, about the end por
tion of which is a steam nozzle c, which communi
cates with a steam chamber d in communication
with a steam inlet e in the casing adapted to be
connected by a conduit e’ with a source of steam.
Extending from the steam nozzle c is a forcing
tube comprising sections Í, Í’. The rear end of
the forcing tube embraces the forward end of the
steam nozzle c and of the nozzle b and communi
thereof for delivery through nozzle b with the
water discharged through the forcing tube.
Back pressure into the supply of solvent or so
lution will be prevented by the ball check valve 40
p and the delivery of solvent through nozzle b
will be controlled by needle valve Z.
A
The stream of admixed water and solvent or
solution passing through the forcing tube at high
.velocity will create a partial vacuum on the over
flow passage i, which results in a drawing into
chamber z' of air through passage m under 'con
trol of valve n., which is adjusted to admit a de
sired amount of air. The air passes from cham
ber z’ through the port y, and through apertures 50
t, if they be provided, into the periphery of the
stream as it passes from section f to section f’
of the forcing tube, with the result that the ho
mogeneity of the stream is broken up so that 55
:1107,346
2
the atmosphere, a check valve positioned in said
on discharge against a surface at high velocity
through, for example, a nozzle, it will readily
break up and exert an increased washing action
discharge passage to prevent entry of air there
through, a steam nozzle'within said casing adapt
over that obtained by a stream free from` air.
In practice using the modification shown in
Figure 2, the passage m is connected to an ele
vated source of solvent or solution throughcon
duit 1‘, while the nozzle b is left open to the at
forcing tube provided with a port in communica
tion with said overiiow chamber and adapted to
receive steam from said nozzle, separate conduits
for the supply of solvent and water to said forc
ing tube undery the influence of vacuum created
by the jet of steam from said nozzle, said con
duits preventing the solvent and water from min
mosphere through gravity check valve p. In op
eration air is drawn into the center of the stream
formed in forcing tube section f, through nozzle
b, under control of valve l, by the vacuum cre
ated by the condensation of steam issuing from
steam nozzle c which is suiiicient to raise gravity
15 check valve p.
ed to be connected to a source of live steam, a
gling until they reach the forcing tube, a sec
ond passage formed in said casing and affording
communication between said overflow chamber
and the atmosphere, and a needle valve adapted 15
to regulate the amount of air flowing through
At the same time solvent, under
the control of valve n, passes check valve s and said second passage.
flows into chamber i, from which it passes, under
2. The method of forming a jet of admixed wa
the influence of vacuum drawn on chamber i by ter and solvent containing air dispersed therein,
the passage of the stream through the forcing which comprises drawing water and solvent sep
and which acts to open check valve s, arately into a conduit under the influence of a
20 , tube,
~through port y, and apertures t, if they be pro
jet of steam directed into said conduit, admit
vided, into the stream. The air drawn into the ting air in controlled amount to the stream of
center of the stream breaks up its homogeneity water and solvent in said conduit and discharging
so that it readily breaks on discharge, at high the said stream carrying air from said conduit in
25 velocity, through, for example, a nozzle, against a jet.
a surface and gives increased washing effect.
3. The method of forming a jet of a’dmixed
It will be noted that while overflow may oc
water and solvent containing air dispersed there
cur from the forcing tube through chamber i in, which comprises drawing water and solvent
when the device is initially started, by the turn
separately into a conduit under the influence of 30
Ying on of steam and water, such overñow will a jet of steam directed into said conduit, ad
be small and will not, even in part, pass out mitting air in controlled amount to the center of
through passage m if the valve n, in the em
the stream of water and solvent in said conduit
bodiment shown in Figure 1 be kept closed until and discharging the said stream carrying air
the jet has formed; and cannot pass into the from said conduit in a jet.
source of solvent or solution in the modification
y4r. The method of forming a jet of admixed
shown in Figure 2 since the check valve s will water and solvent containing air dispersed there
prevent.
i
Y
. When the device is not in use, it is only nec
essary to turn off the steam and water, it being
noted that in the embodiment shown in Figure
1 there is no gravitational flow of solvent which
needs to be controlled, While in the modification
shown in Figure 2 the check valve s prevents the
flow of solvent.
It will be appreciated that variousV modifica
tions in detail may be made in the apparatus
herein described and illustrated without depart
ing from the scope of this invention. Thus, for
example, the solvent delivery nozzle may be vari
ously led into the casing and, if desired, the sol
vent may be delivered gravitationally at any
in, which comprises drawing water and solvent
separately into a conduit under the influence of
a jet of steam directed into said conduit, admit
ting air in controlled amount to the periphery
of the stream of water and solvent in said con
duit and discharging the said stream carrying
air from said conduit in a jet.
5. A washer including, in combination, a cas
ing, an overflow chamber in said casing, a dis
charge passage from said .overflow chamber to
the atmosphere, a check valve positioned in said
discharge passage to prevent entry of air there
through, a steam nozzle within said casing'adapt- ,
ed to be connected to a source of live steam, a
forcing tube provided with a port in communi
cation with said overflow chamber and adapted
forcing tube.
to receive steam from said nozzle, separate ,con
As will be obvious the washer in accordance duits for the supply of solvent and water'to said
with this invention will be adaptable for use in » forcing tube under the influence of vacuum cre
washing variously and that it is not contemplated ated by the jet of steam from said nozzle, said
that this invention shall be in any way limited conduits preventing the solvent and water from
by the above description of a preferred embodi
mingling until they reach the forcing tube, a
ment thereof with reference to the washing of second passage formed in said casing and af tu
fording communication between said overflow
60 locomotives.
What I claim and desire to protect by Letters chamber and the» atmosphere, and a valve adapt
ed to regulate the amount of air flowing through
Patent is:
1. A washer including, in combination, a cas
said second passage.
' suitable point for discharge with water from the
ing, an overflow chamber in said casing, a dis
65 charge passage from said overñow chamber to
IRENEÉ P. PEDRICK.
Документ
Категория
Без категории
Просмотров
0
Размер файла
376 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа