US273472A - Cane-mill - Google Patents

Description

(No Madel.)

D. L. DAVIS.

GANE MILL. No. 273,472. y Patented Ma.1.6,1883.

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UNITED STA-TES PATENT OEEICE.

DANIEL L. DAVIS, OF HARVEYSBURG, ANSSIGNOR OF ONE-HALF TO BENJA- MIN BUTTERWORTH, OF CINCINNATI, OHIO.

CANE- SPECIFICATION forming part of Letters Patent No. 273,472, dated March 6, 1883. Application led January 5, 188g. (No model.)

To all whom it may concern:

Be it known that I, DANIEL L. DAVIS, of Harveysburg, in the county of Warren and State of Ohio, have invented certain new and useful Improvements in Gane-Mills; and I do hereby declare that the followingisafull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, refer ence being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 is a side elevation, partly in section, of my improvedcane-mill; and Fig. 2 is a detail view of the steam-tube with its apertures for emitting the jets.

Like letters of reference indicate corresponding parts in both the figures.

My invention has relation to sugar-mills, adapted to express the juice fromy sugar-cane and sorghum, of that class in which the cutup cane is subjected to the action of a jet of steam,which melts the sugar-crystalscontained in the cane or sorghum stalks, thereby greatlyA increasing the yield of expressed juice by dissolving sugar-crystals which would'otherwise be carried oli in the bagasse; and it consists in the improved construction ot a cane-mill of that class, as hereinafter more fully described and claimed.

In the accompanying drawings, A denotes the frame or casing of the mill, which is open at the bottom and mounted at asuitable height upon feet or supports a.

B is the lower feed-roll, which is journaled in boxes G, xed on abearing, D, projecting from the frontpart of the machine; and E is the upper feed-roll which is journaled iin boxes F, fastened to the upper leaf of two bent steel springs, G-one at each end ofthe roll. As the ligure in the drawings is a side elevation, only one of these springs and one each of the boxes O and F are seen. f i.

As the cane is fed into the mill between the -rolls it is received upon a throat-piece, H, by

K', extending downwardly to within a short` dista-nce of the apron M. The throat-piece H has a downward extension, H', which, in connection with the hood K and its tail-piece K', forms a steam-chamber, into which steam is injected in the form of numerous jets through apertures l in a tube or pipe, L, which extends transversely across the front part of the machine, from side to side, and is fed through a pipe, L', leading to a suitably-located boiler or steam-generator. Where steam is used to run the mill, the steam-pipes L' L may be fed conveniently from the same boiler which runs the engine. The jets of steam pass in an oblique upward direction from pipe L into the hood K, as indicated by the small arrow in Fig. 1,

vso as to thoroughly impregnato the cane as it is being fed to and cut up by cylinder I; and as the steam being confined within the hood or steam-chamber K cannot escape until `it has reached and passes under the tail-piece K', it will be seen that the cut cane is subjected to the action of the steam while it is confined in the stean1chamber,andeven for some time after, inasmuch as the steam, after it escapes from the steam-chamber, will follow the in:

eline of the apron M, by which the cut cane is carried between the three sets `of presser-rolls. The endless apron M is hung between and works upon rolls N and O, one of which is provided with an appliance for adjusting its box or bearing to take up slack. I do not confine myself to any particular construction of this apron, but have found by experience that it may be made advantageously of tempered steel bands, like those used in the manufacture ot the blades for so-called "band-saws." This straight, parallel to one another, or spirally, as

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the springs of which may be adjusted to give the required degree of pressure to thoroughly express the juice from the steam-saturated cane. After it hasppassed between the last set of rolls the bagasse is delivered from the apron M over its roll N upon the bagasse-carrier S. The expressed cane-juice filows through the apron M down into a screen or sieve,T, arranged in the bottom of the machine, through which itis strained or filtered into a box or reservoir placed on the door below, but not shown in the drawings.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United States- 1. In a cane-mill, the combination of the eutter-eyliuder I, hood K, throat-piece H, having downward extension H', and steam-pipe L' L,

having a series ofjet-apertures, Z, substantially as and for the purpose herein shown and set 2o having tail-piece K', endless apron M, and 25 presser-rolls P P', Q Q', and l R', all eonstructed and arranged substantially as and for the purpose herein shown and described.

In testimony that I claim the foregoing as my own I have hereunto afxed my signature 3o in presence of two witnesses.

DANIEL L. DAVIS.

Witnesses:

LoUIs BAGGER, WM. LECHER.

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