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Патент USA US2136304

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Nov. 8, 1938.
R. G. LUNDY
2,136,304
STEAM JET
Filed Sept. 20, 1937
?ay 6! Z'wn
ATTORNEYS
Patented Nov. 8, 1938
2,136,304
UNITED’ STATES
PATENT OFFICE’
2,136,304
STEAM JET
Roy G. Lundy, St. Louis, Mo.
Application September 20, 1937, Serial No. 164,790
2 Claims. (Cl. 103-267)
This invention relates to steam jets for lifts Clamped between the body 3 and the ?tting 6'is
especially adapted for conveying particles of solid an inverted cone-shaped member ll having an
matter in water to a desired height and has for ori?ce l2 in the apex portion thereof. The
the primary object the provision of a device of diameter of the ori?ce is substantially equal to
this character which will reduce to a minimum
the chances of clogging by particles of solid mat
ter and will utilize a smaller amount of steam for
the successful elevation of materials to a maxi
mum height than required by jets now in use.
10
With these and other objects in View, this in
vention consists in certain novel features of con
struction, combination and arrangement of parts
to be hereinafter more fully described and
claimed.
ll
For a complete understanding of my invention,
reference is to be had to the following description
and accompanying drawing, in which
Figure 1 is a vertical sectional view illustrating
a steam jet constructed in accordance with my
invention.
Figure 2 is a sectional view taken on the line
2-2 of Figure 1.
Referring in detail to the drawing, the
numerals l and 2 indicate conveyor tubes, the
tube 2 being located at right angles and in a plane
above the tube l. The tube 1 acts to receive liquid
and particles of solid matter and the tube 2 acts
to discharge said liquid and particles of solid
matter to a desired height.
In order to cause
the liquids and particles of solid matter to pass
from the tube l and through the tube 2 my inven
tion is employed which consists of a steam jet so
constructed that a minimum amount of steam will
develop sumcient lifting action to successfully as
sure the discharge of the matter and liquid at a
maximum height.
The steam jet consists of a housing 3 having
detachably secured thereto by bolts 4 ?ttings 5
and 6. The ?tting 5 threads onto the tube 2
while the ?tting 6 bolts onto the tube l and in
cludes angularly related portions A and B. The
portion B aligns with the tube I,v while the por
tion A aligns with the tube 2.
A sleeve 1 forming an ori?ce of a selected
diameter is mounted. in the housing 3 with its
uppermost end terminating within the tube 2
and the lower end has formed thereon an en
largement 8 of adiameter slightly smaller than
the internal diameter of the housing 3 and is
equipped with an adjustable packing gland 9
to establish a leak-proof connection between the
housing 3 and the sleeve 1. A spider I0 is detach
ably secured on the housingv and is adjustably
connected to the sleeve 1 whereby said sleeve
may be raised and lowered in the housing.
the internal diameter of the sleeve 1;. The cone
shaped member II cooperates with the enlarge
ment 8 of the sleeve 1 of the housing 3 in forming
a steam chamber l 2’ fed by steam from a supply,
pipe I3. The lower end of, the sleeve 1 is beveled and spaced from the cone-shaped member II a 10
selected distance to form an annular steam ori
?ce M which places the steam chamber l2’ in
communication with the interior of the sleeve 1.
The steam from the chamber l2’ escapes into
the sleeve 1 in substantially conical formation 15
exerting the greatest pressure next to the walls
of the sleeve 1 and less pressure within the space
centrally of the walls of the sleeve 1. A steam
nozzle I5 is carried by the ?tting 6 and has its
discharge end terminating in the conical shaped
member H and is arranged in axial alignment
with the passage de?ned by the sleeve 1 and the
ori?ce [2 of the conical shaped member ll so that
a stream of steam will be discharged centrally’
through the sleeve 1 which with the conical 25
shaped ?ow of steam by the ori?ce M will produce
a maximum amount of suction in the ?tting 6
and tube l for conveying the liquid and solid mat
ter upwardly through the sleeve 1 into the tube
I where the pressure of the steam carries said 30
liquid and solid matter entirely through the tube
2 to a selected height without danger of the
solid matter clogging the sleeve 1 or ori?ce l2 of
the conical shaped member I l. ‘Steam introduced
into the sleeve 1 by the ori?ce l4 and the nozzle 35
l5 requires a less amount of steam for the lifting
of the'liquid and solid matter than ?ttings now
in use with the chances of clogging reduced to a
minimum.
The ori?ce l4 may be increased and decreased 40
in size by adjusting the sleeve ‘I relative to the
conical shaped member II. The nozzle I5 is de
tachable from the ?tting and different size noz
zles may be employed to meet variable working
conditions. It is preferable that the discharge 45
end of the nozzle I5 terminate a distance‘ from
the ori?ce [4 which will equal the internal
diameter of the sleeve 1.
What is claimed is:
1. A steam jet for lifts comprising a housing 50
adapted to be connected into a conveyor tube and
having an annular steam chamber connected to
a steam supply, a sleeve having a uniform internal
diameter extending downwardly in said housing
and closing the upper portion of the housing, said
2
2,136,304
sleeve being located centrally of the steamy cham
ber, an inverted substantially conical-shaped
member mounted in said housing and extending
into the steam chamber from the lower end of the
housing and having an ori?ce in alignment with
the sleeve and spaced from the lower end of
said sleeve to provide a conical-shaped passage
between the steam chamber and the sleeve where
by steam discharging from the steam chamber
10 into said sleeve will be in a conical-shaped flow for
producing greater pressure adjacent the walls of
said sleeve than axially thereof, and a steam
nozzle for discharging steam axially through said
conical-shaped member and axially through said
15 sleeve with its discharge end located below the
ori?ce of the inverted substantially conical
shaped member.
2. A steam jet for lifts comprising a housing
adapted to be connected into a conveyor tube and
20 having an annular steam chamber connected to a
steam supply, a sleeve having a uniform internal
diameter extending downwardly in said housing
and closing the upper portion of the housing, said
sleeve being located centrally of the steam cham
ber, an inverted substantially conical-shaped
member mounted in said housing and extending
into the steam chamber from the lower end of the
housing and having an ori?ce in alignment with
the sleeve and spaced from the lower end of said
sleeve to provide a conical-shaped passage between
the steam chamber and the sleeve whereby steam
discharging from the steam chamber into said
sleeve will be in a conical-shaped flow for pro
ducing greater pressure adjacent the Walls of said 10
sleeve than axially thereof, a steam nozzle for dis
charging steam axially through said conicalshaped member and axially through said sleeve
with its discharge end located below the ori?ce
of the inverted substantially conical-shaped mem
ber, a spider mounted in the housing and having
the sleeve extending therethrough, and means for
adjustably connecting the sleeve on the spider
whereby the sleeve may be adjusted relative to the
inverted substantially conical-shaped member to
increase and decrease the size of the steam pas
sage between the sleeve and the steam chamber.
ROY G. LUNDY.
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