USRE931E - Improvement in furnaces for evaporating sugar-juices - Google Patents

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IIII

Ill IH] NA PETERS. PKOTO-LIYNOGRAPHER, WASHINGTON D C UNITED` STATES PATENT OFFICE.

LOUIS LEFEBVRE, `OF NEW ORLEANS, LOUISIANA.

IMPROVEMENT IN FURNACES FO'R EVAKPORATING SUGARLJUICS.

Specification*forming part of Leiters Patent No. "9

MJQG, .dated November 23, 1858; Additional ImprovementV No. 263, dated January 2J, 1860; Reissue 'No.93 l dated March 20; 1860.

To all-10700511, t may concern.'

Be it known that I, LoUIs LEFEBVRE, ofA

N ew Orleans, parish of Orleans, State of Lonisiana, have invgented'a new Improvement in Apparatus for Evaporating OaneJuice; and

\ I do hereby declare that the following isa full,

clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters vof reference Inarked thereon.

.The object of my invention is to effect an economy of time and fuel by a speedy evaporation-the result ofthe multiplication of the surfaces exposed to the fire and of the concentration of heat. g

My invention consistsf First. Of hemispherical kettles 'with alter- `nate flutes, presenting a double extent of surface to the iire. These kettles possess, moreover, the advantage. of economizing the. consumption of fuel and of offering a stronger re-r sistance to thc action of heat than do the ordinary kettles, in consequence of the great eX- pans`on of their ilutes or alternate arched surfaces. j y:

Second. Of a fluted or. corrugated'brickwork, so adjusted as to correspond to the indented surfaces of the kettles, and thus compel the `fire to follow the nndulationslof the line and thekettle. This brick-work isa great `econoinizer of fuel, as it accelerates evapora-y tion by the reverberation and concentration of heat.` ff

Third. Of a connecting-pipe eight or ten inches in diameterthc lower extremity closed by means of a valve, so that it may be kept full of liquid and may be exposed to the action of the fire with-out danger of burning. p .While this connection-pipe obviatcs the `inconven- `ience of the tub used for passing the sirup from one kettle to another, it saves the cony sulnption of fuel by presenting to the fire an additional amountof surface.

Fourth: Of .a gutter placed on the right of each kettle to recover the scum, and suiieiently inclined to `empty it into thela'rge common glitter which leads to a double-'section vat, to

be there clarified. ."By means of this gutter the` scum which .containsy foreign substances injurious to the manufacture of sugar, instead of being thrown from kettle'to kettle until it reaches the last, is immediately and directly withdrawn.-

` Fifth. In a peculiar.construction, for the purpose of adapting the setting tothe burning of coal, consisting in inclosing the kettles within cylindrical lines communicating with the undulating line around the kettle at the top thereof by graduated draft-channels, as 'will be hereinafter set forth, so asuniformly to distribute the heat over the entire surface of the kettle. p

The details will be understoodby reference to the drawings. l

Sheet A: Figure 1 is a perspective View, in whichA represents the kettle. B represents the emptying-valves` C represents gutters to receive the senin and' convey it to the larger one, D7 which leads to a double-section vat,

there to be clarified. mon brick-work.

Fig. 2 is a brick-Work plan. A represents deposit of ashes. B represents corrugated part Erepresents plain coinof the flue corresponding with thefwrinkles of f the kettle. 'C represents the iue of the chimney. D represents the chimney. E represents grate of the furnace. F represents the coinnIon plain brick-work. i

Fig. Sis a section of the kettles, seen underneath. A is the emptying or connecting pipe, ati ached to the kettle, and passingthrough the flue. B is part of the emptying-pipe, Xed to the bottom of the kettle by screws G. D is the corrugated ory fluted [luc under the kettle. E is the common flue. F is the common briek- Work. G is the kettle.

Fig. 4. is a perspective View of the kettle, made of east metal, with an undnlated or flut ed surface, the width of the flutes gradually decreasing fromA top to bottom, where the vertices of allthe utes meet, thus constituting a fiuted hemisphere. YThe iiutes may be made as deep as desired, giving'a greater amount of surfaceas the flutes are deepened. These flutes,

moreover, add to the strengthofthekettle in 'l addition to the increased surface given. Fig. 5 isa plan of the kettle. A represents rims of the kettle. `B `represents concavek utes. ,C represents `convex lutes. D represents points of junction of the iiutes.

Fig. 6 isa section of Fig. l. Arepresents the kettle. B represents the furnacevC represents the ash-panin .the ground. D .repre sents nue or chimney. E representsthe ilues vault. F representsdeposit of ashes. Grep- `resents the gutters. v'

y represents kettle in position.

y flue.

responding to the upper part of the' kettles or arched chimney.

chimney and Wall to enable the iir'eman to resents doors giving access `to spaces F, yin/order to clean'them.Y H'represents chimney. I

' represents connecting or emptying pipes.

represents plain common brick-work. S rep- Fig. 7 is a View of the emptying-valves. VA represents the shutter. B represents wooden handle of the shutter. C representsthe spout. Drepresents the slide of the shutter. E represents part ofthe valves fixed to the cmptyi ngi f pipe o.

Fig. 8 shows the form of an instrument toI be used in cleaning the iiutes of the kettle.

Sheet BzFig. l is `a perspective View, in which A represents the kettle. B represents the tiling. C represents the arched vault which supports part of the circular ue andenables the fireman to approach the furnaces. D representstlie common chimney.

Fig. 2' is a plan View of the set of kettles.

`A represents View of the brick-work prepared to receive the kettles. B represents circular flue drawing the smoke around the upper part of the kettle by means of graduated Vdraftholes. C represents rluted portion of brick Work. D represents graduated draft-holes. VE

represents the grates. F represents arched chimney conducting the smoke to the common chimney. G represents View of a kettle witl'r out the edge. Il represents undulating space v between the brick and the kettle. I represents aview of a kettle without its edge, eX- hibiting the pin-up ofthe kettle. K represents tin ypin,up which supports the kettle. L

g Fig. 3 is a longitudinal section. A repre.- sen the kettles. B represents interior of the furnace. C represents the grates. D'represents the ash-pan.

F represents graduated draft-holes corcylindrical ue. i

Fig. 4 is a transverse section. A represents B represents space between pass from one iire to another.

E represents the circular- Fig.Y 5 is a pe"specti.v-e Yviewof the alternate tinted-kettle. y

Fig. 6 is a plan of, the kettle. The operation of this construction for burning coal is as follows: The channels'issuing"` from the top of the undulating flue cause the heated currents to be drawn to the top of the kettle, and the graduation,by making ther lchannelsilargest `'on the side opposite the main'` chimney, and making their issues alternately at the concave and convex portion of the undulating iiue,uniforinly diffuses the heat over the Whole of the surface of the kettle.

I am aware that corrugated surfaces have been employed in apparatus for evaporating cane-juice. I therefore disclaim the use of corrugations for such purpose: broadly con-v sidered; but K That I do claim as new and of my own iuvention, and desire to secure by Letters Pat-` ent, is-

l. The hemispherical kettle with alternate `converging iiutes, as and for the purpose described.

' 2. In :combination with the said kettle,

fluting the "surrounding brick-work, as de scribed, 'so as to fom an undulating flue around the kettle.

3. Passing the connecting-pipes of the kettles through the iiues7 whereby theyT are utill ized as evaporators,y as set forth.

4. The inclined gutter7 in combination with the gutters'of the respective scribed. i

5. The cylindrical flue inclosing the kettle, connected with the exit-flue. and communieating with the undulating iiue at top by grad uated draft-channels,substantially as set forth. In testimony whereof I have hereunto signed my name before two subscribing Witnesses.

L. LEFEBVRE."

W it-nesses: x n Y Guo. PATTEN. JOHN S. H oLigiNGsHE.-in.\

k ettles, as Vde-

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