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Патент USA US2411006

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Nov. 12, 1946.,`
2,@ LÜÜS
Filed Jan. 18, 1945
2 Sheets-Sheet l
Nov. l2, 1946.
Filed Jan. 18, 1945
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Patented Nov. 12,1946
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Renwick J. Sharp, Guatemala, Guatemala
Application January 18, 1945, Serial No. 573,429
1 C13/im. - (Cl. 126-378)
My present invention, in its broad aspect, has
to do With improvements in steam kettles, and
more particularly, it is my purpose to greatly
reinforce steam kettle construction and greatly
increase heat transference to the end that fuel,
time and labor are saved, and a more evenly
distributed and eñicient heating arrangement ob
In steam kettles heretofore known, it has been
the practice to introduce steam under pressure
between the inner and outer sheets of a steam
kettle and tap off the condensate: the inner and
outer shells not being insulated and there being
no ribs, vanes, reinforcements or the like be
tilt the kettle.
The trunnions are ñxed to the
substantially semi-cylindrical outer shell or cas
ing 5, and the outer shell or casing is covered
over its whole surface by a layer of insulation 6
and has a drain cock 'I in its bottom part. The
top edge of the outer shell or casing is outwardly
and annularly flanged as at 8 and bolted as at
9 to said flange is an inner shell or kettle sup
porting ring Il) having an upwardly and slightly
outwardly curved annular ñange II. Suitable
packing or gasket means I2 are provided between
the flange and ring to provide a sealed joint.
The inner shell or kettle, per se I3, is substan
tially semi-cylindrical and has an outwardly
tween the shells. Such kettles have a consider 15 curved or flared upper edge Id with a terminal
able heat loss and have been known to explode
bead I5. The inner shell or kettle is riveted or
with injury to attendants.
otherwise secured as at I 6 to the flange I I of sup
My steam kettle, as distinguished from those
porting ring Ill to be spaced from the outer shell
of the prior art, has reinforcing ribs on the out
or casing to form a steam chamber I'I gradually
`side of the inner shell and extending into the 20 increasing in width Ytoward the bottom as at
space between the shells; these ribs are punched
I8. The material to be cooked, such as candy
to form openings and small vanes or outstand
or the like, is placed in the inner shell or kettle
ing parts and the ribs not only greatly reinforce
per se.
the structure of the kettle, but increase efficiency
Trunnion 4 is longitudinally bored as at I9 to
and heatl transference and the openings permit 25 form a steam conduit leading into the chamber
ready passage of steam and condensate and the
vanes facilitate heat transference and the like.
Il and a valve 2G is provided to- control the
delivery of steam thereto. A pipe 2l may lead
from the conduit to and around the bottom of
My outer shell is insulated to prevent heat loss
and the steam kettle greatly improved.
the inner shell or kettle. Condensation 22 is
Other and equally important objects and ad
collected in the bottom of chamber I'I and a
vantages of my invention will be apparent from
tap 23 to a condensation removal pipe 2li is
the following description and drawings,. but
provided, which condensation removal pipe is
changes may be made in the form, size, shape,
curved to extend upwardly about the vouter shell
construction and arrangement of parts without
and connect with a condensation outlet bore 25
departing from by broad inventive concept, or 35 in trunnion '3.
the scope of the appended claim.
To reinforce my inner shell or kettle, per se
In the drawings wherein I have illustrated a
I3, I provide spaced vertically extending rein
preferred form of my invention:
forcing ribs 26 which gradually increase in width
Figure 1 is a side elevation.
as at 2l towarda common radiating point 2‘8
40 at the'bottom of the shell. These ribs are curved
Figure 2 is a vertical section.
Figure 3 is a longitudinal section on the line
as at 29a to ñt the contour of the kettle and
3_3 of Figure 1.
gradually converge to the radiating point 23 and
Figure 4 is a side elevation of my inner shell
may be formed integrally with the Wall of the
or kettle, per se, showing the ribs.
shell. They extend upwardly to about the sup
Figure 5 is a perspective view of one of the per 45 porting ring In. The ribs greatly reinforce the
forated ribs.
kettle and greatly increase heat transference.
Figure 6 is a detail of the perforations and
Each rib has as many openings 29 punched therein
vanes or outstanding parts formed thereby.
as is practical; such openings being preferably
In the drawings wherein like characters of ref
punched from one direction and in a manner to
erence are used to designate like or similar parts 50 leave angularly laterally and upwardly extend
throughout the several views:
ing uns or parts SI2-see Figure G-Which increase
The numeral I designates the spaced vertical
heat transference and guide the steam introduced
standards between which my steam kettle 2 is
into the kettle and insure full and prompt cir
pivotally mounted on opposed trunnions 3 and 4.
A hand lever A is provided in one trunnion to 55 From the foregoing, it is believed that the oper- Y
ation and advantages of my invention will be
apparent, but it is again emphasized that inter
pretation of its scope should only be conclusive
when made in the light of the subjoined claim.
I claim:
The combination with a steam kettle having
inner and outer spaced shells forming a steam
chamber and a steam inlet and a condensation
outlet; of a plurality of reinforcing and heat
face of the inner shell from a Common radiating'
point at its bottom and in vertical planes ex
tending radially of the inner shell said ribs ex
tending into the steam chamber and having a
plurality of vanes punched laterally from said
ribs and thereby forming a plurality of closely
spaced openings therein and said vanes extending
angularly and upwardly at about 45 degrees from
the body of ribs, and insulation about the outer
transferring ribs provided in closely spaced rela 10 shell.
tionship extending upwardly over the outer sur
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