US1466637A - Melting kettle - Google Patents

Description

MELTI'NG KETTLE Aug. 2s, 1923;

Original Filed Oct. 17, 1921 2 Sheets-Sheet 1 4 l INVENToR;

@kades Siabh,

BY l@ ,L v" j@ as. i

ATTORNEYS.-

Au@ 2a, w23. 1,466,637

c. s. BABE MELTING KETTLE original Filed om. 1'?.v 1921 2 sheets-sheet 2 y v v INVENTOR: @harias 5.Banbb5 WITNESSES.-

'I ATTURNYS.

:Patented ugfZS, 1923. i

1,466,637 PATENT OFFICE- CEIIARLES STEWART BABB, OF CHICAGO, ILLINOIS, ASSIGNOR T0 THE BARBER APHALT COMPANY, OF P:Ev-Ill:LADELIHIIIA, PENNSYLVANIA, A CORPORATION 0F WEST VIRGINIA.

MEL'TING KETTQLE.

Application filed October 17,1921, Serial No. 508,414. Renewed .Tanua'rySL 1923.

ioallwzomtmag/concern:

Be it known that I, CHARLES S. BABE., a

citizen of the United States, residing in @hition of melting continuous, i. e., without.

cago, inthe county of Cook and State of I1linois, have invented` certain new and useful Improvements `in Melting Kettles, whereof the following is lal specification, reference being had to the accompanying dravvin2gs- My invention relates to melting kettles more especially for melting asphalt, pitch, tar' or other similar substances or materials used in street paving or roofing.

Amongst'the objects of my invention are' to secure, in such structures, the highest pos-v sible efliciency in operation; to obviate the possibility of burning the materials in the course of the meltingg' to render theoperanecessitating delays necessary for successive recharging `as in kettles heretofore. existent;

and in general, to secure utmost simplicity of construction, and desirability in practice under the lowest costv of manufacture.

In the accompanying drawings,Fig. I is aperspective view of. a. melting kettle `con veniently embodying my invention.

F ig;' II is a cross sectional view of the same and i p F ig. III is a longitudinals'ctional elevation of the structure.

The melting kettle herein represented as typical of my'invention, is rectangular in form, and, in practice, is preferably constructed :of sheet metal of appropriate thickness riveted or otherwiserigidly secured together. The structure has vertical side and endl walls 1, 2 and 3, 4:l respectively,v which jointly form an enclosure within which the 'melting trough designated by the numeral 5 is suspended. The enclosure serves as a fire box and is accessible through'a charging opening 6 near the bottom of the front end wall 3. It is to be particularly noted that the trough 5 terminates somewhat shortI of the rear end wall 4. to afford a vertical `interspace 7 for the passage of the products of combustion en route to a flue indicated at 8,

` the latter communicating with said interspace through an opening 9 in said end'vvall.

It desired', the enclosure may be provided with a bottom as suggested at 1.0 in Figs. II

and' III, and'urther strengthened by\chan` nelled reinforcingY rails 11-.11 along ,its sides and by angle rails 12-12 at its ends.

'side walls'fll sloping at comparatively steep angles and'rnerging into a rounded'bottom 16. In this way I obtain greater heat-l i ing surface area than possible with troughs vof semi-circular or wholly curved cross seotions and certain other advantages which `will be obvious from `further description.

Along opposite sides said trough hasfcoextensive subdivisions or pockets 17-17 into' which the' solids to be meltedare placed for preheating. The lower edges ofthe vertlcal partitions 18-18 by which subdi- .i

vision is' effected terminate short of the sloping sides of thetrough so as to afford re# stricted openings 19-l9. through which the material, after being fused, may drain into the tank proper.- For the purpose of affording greater rigidity, I have provided, at intervals lengthwise of the pockets, transverse vpartitions 20F-20. The rounded bottom of the trough is enveloped by a Ajacket 21, which, as will be'noted ymore especially from Fig'. 'III is' open at its ends so that air may circulate freely therethrough` as` suggested .by

the arrows. The plate 22 by which the jacket isformed is ,extendedv somewhat along the sloping sides of the trough so that it may be conveniently attached to the latter by riveting o r otherwise. The continuous circulation of air through the jacket 21, it will be seen, serves to prevent burn-ing of thatportion of the contents of the trough which is subjected to the greatest heat.

. In order to secure the highest possible efficiency, I aim'to draw the heat' in a general upward direction from the vbottom ofthe fire box along the sides of the trough before lleingdischarged through the flue 7. Thisv desideratum I obtain 4by providing each of the side walls l and 2 near the bottom of the enclosure with a series of inlets 25', and near the top with a series of outlets 26, as a consequence ofwhich, lateral circulation is set up at each side of and throughout the length of the trough. d From the foregoing, it will be readily apparent' that a. Vmelting kettle constructed in' accordance with my invention is highly eiiicientby reason of uniform distribution'of the 'heating medium toimpinge against all portions ofthe extended surface area ofthe trough, and moreover, by provision of the preheating pockets, the processof melting maybe carried on continuously While the trough is at Iall times accessible fromthe top so that the contents may be removed therefrom by aid of dippers such as ordinarily used in connection ivith melting kettles.

' lf desired, the structure may be provided with` Wheels or mounted in any approved manner so that it may be readily transferred from place tov place.

Having thus described my invention, I

claim 1. Almelting kettle comprising" an enclosureserviceable as a glesand merging-into a rounde'd bottom the trough being located Wholly in said fire box.

2. .A melting kettle comprising an enclosure serviceable as a fire box, and a melting trough suspended Within the enclosure, said Atrough being enveloped by an open-ended jacket through which air is free to circulatie in order to from direct action of the lire. i A

A melting kettle comprisingan' eneloA sure serviceable as a fire box, and a melting trough suspended vvithin the enclosure having V shaped cross sectionrvvith its sides sloping at comparatively steep anglesand merging `into a rounded bottom, said trough having also an open-ended jacket enveloping its rounded bottom through which air is free to circulate in order to protect the contents of the trough from direct action of the most intense heat of the fire. 1

4. A melting kettle comprising an encloP sure serviceable as `a fire box having near the bottom of one end Wall an opening for charging and also foradmitting air necessary to support combustion, a flue leading from an opening near the top of the opposite end Wall, and a. melting trough suspended Within and extending ivhollyinto the fire box, and terminating short 'of the last nientioned end Wall of the enclosure toafford a "draft opening and a flue, and a melting` 'vertical interspace for passage "of the products ofcombustion en route to the flue.

.5. A melting kettle comprising an "enclosure serviceable Aas a fire box and having a trough suspended within said enclosure, the side vvalls of the latter having near the 'bottom inlet apertures in addition to the draft opening, and nearthe top outlet apertures in addition to theflue for the purpose of induc- Aing upward draft and 'consequent uniform vdistribution of the heat along the-sides an throughoutfthe length of the trough.

6. A melt-ing kettle comprising afire box, and a trough suspended above the fire box and extending IWholly thereinto, said trough having subdivisions or pockets for storage' and preheating ofthe solid material which fire box, anda melting l trough suspended Within the inclosure, said .trough having shaped cross section with its sides sloping at comparatively steep auf protect the contents ofthe trough ineens? ing sides ofthe trough to afford restricted outlets through which the materialA may drain into the'trough proper.

8. A melting kettle comprising an enclosure. serviceable as a fire box, a trough mounted above the firebox and extending directly thereinto so as to be subject directly to lthetlaine and heat of combustion and having a sloping Wall,` andl means cooperating with said Wall to form aretaining pocket in, which to receive solid materialto be fused, the liquefied material flowing from thev pocket tothe bottom of the trougl j 9. A melting kettle comprising, an enclosure serviceable as a fire box, a trough mounted therein and having a sloping Wall, a .partition cooperating .With the Wall to form a retaining compartment, and a series of transverse partitions subdividing the compartment into a number of pockets in which to receive solid materialto be fused,

the liquefied material flowing from'v the -pockets to the bottom of the trough.

10. Aanelting kettle :comprising an ensaid e closure serviceable asy a. firebox, a trough,

substantially V-shaped in cross section and having converging Walls depending directly into thefire box so that both Walls are subjected simultaneously to the heat of coinbustion, a partition along the upper edge of each Wall infspaced` relation to form retaining compartments in Which t0 receive solid material to be melted, the liquefied material flowing from the compartments to the bottom of the trough.

.11. A meltin 'kettlecomprising an enclosure .servicea4 le as a fire box, a trough depending into the fire box and havinga sloping Wall, a retaining means in spaced relation to the wall adjacent the upper portion of the latterto form a retaining pocket in which to receive solid material to be fused,

the liquefied'material flowing yfrom the pocket to the bottom of the trough for accumulation, and direct exposure to the heat, the vWall of the enclosure having openings adjacent its upper portion to create a path for hot gases running in close proximity to the Walls of the retaining pocket to' promote fusion of the solid material.

12. lA meltingkettle comprising an enclosure serviceable as a re box having a draft opening atene end and a. ue at the other end',`. forming a direct draft channel,

' a 'trough depending into the enclosure and having downwardly 'converging Walls terminating in a rounded bottom extending contiguously to the draft channel, the flue end of the trough being spaced from the adjacent wall of the enclosure to forma draft passage communicating with the irebox andthe flue.

13. A meltin kettle; comprising an enclosure servicea leas a fire box and having a draft' opening and` a Aflue, a Vshaped ,trough depending into the enclosure with downwardly converging walls, whereby the gases of combustion may low along the. bottom of the trough longitudinally thereof, from opening to flue to heat the trough, op-

posed side walls of the enclosure facing the trough walls'having openings at the lower and upper edges to create a flow of hot -gases upward along the trough walls to\heat every walls terminating in a rounded bottom runv I ning endwise between 4the'draft opening and flue, the trough terminating' short of the flue.

end wall of .the` enclosure to form a draft passagel communicating with the fire boxand'ue, a plate covering the bottom of the trough in spacedrelation and provided with open ends to permit flow of gases through .the space, retaining plates mounted in spaced" relation to the upper edge of eachtrough wall to form retaining compartments forsolid material, opposed side walls of the enclosure lfacing the trough walls having lower and upper openings to create an-up` trou-ghvwalls. v

15. In a melting kettle, a trough'to receive melted material,j means to retain the solid material-t0 be melted and to permit thematerial as fast as it is fused to drain.

into the trough, and a' frebox receiving thetrough and the retaining means in such a manner that the portion of the'trough in whichthe meltedvmaterial is collected and the retaining means enclosing the solid material are both subjected simultaneously and directly to the flame and heat'of combustion. In testimony whereof, I have hereunto signed my name atChicago, I1linois ,`this 10th day of October, 1921'.

CHARLES STEWART BABB.

"Witnesses: f v e RAYMOND LLEwnnLrN ARNOLD,`

EDNA GmzTRunE GATES.

ward draft to heat every portion of the.

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