US3000A - Improvement in sugar-boilers - Google Patents

Description

W. GRAHAM. Apparatus for' Boiling Sugar.

Patented Mmh 10, 1843.;

N. PETERS. FholQ-Lllhographcr. wamin mm D c.

UNITED STATES PATENT OF ICE,

WM. GRAHAM, or sT. CHARLES PARISH, LOUISIANA.

lM PROVEMENT IN SUGAR-BOILERS.

Specification iorming part of Letters Patent No. 3.000, dated March 10, 1843.

To all whom, it may concern Be it known that I, XVILLIAM GRAHAM, of the parish of St. Charles, in the State of Louisiana, have invented anew and useful Improvement in Making Sugar, which is described as follows, reference being had to the annexed drawing of the same, making part of this specification.

The figure is a vertical section of the evaporating-kettles, &c.

The evaporating-kettles A,in which the j nice is evaporated, are made of copper or other suitable material, of different sizes, and are arranged on different levels, the largest in this arrangement being the highest, the kettles gradually diminishingin size from the kettle termed the Grand A to that which istermed the Battery A, the upper edge of each kettle being placed nearly on a level with the bottom of the preceding one, and communicating the one with the other by suitable tubes, 13, provided with cocks O for opening or closing the communication from one boiler to the other.

The evaporators A are placed. in semispherical cast iron or other metallic shells or jackets, D, of larger size than the evaporators, so made and arranged as to leave a space, E, between the two to admit steam from a common boiler, by which the evaporators are to be heated, the steam being admitted through branch tubes F of a main tube, G, leading from the steam-boiler, all of said tubes being furnished with stop-cocks for regulating the admission of the steam, and consequently the degree of heat required. The evaporators are provided with pipes and cooks for letting ofi' the liquid from one to the other.

The condensed steam is made to flow back into the boiler constantly by arranging the main steam-pipe immediately beneath the kettles, in a position inclining upward from the boiler, with vertical branch tubes leading into the same from the lower part of the jackets, through which the steam is admitted to the spaces between the jackets and kettles, and'by which the condensed steam is suffered to flow back into the boiler by its gravity, thereby preventing the evaporation of the steam by keep ing it constantly inclosed from the atmosphere.

I do not claim the sugar-kettles surrounded by jackets, nor the application of high-pressure steam for heating them; but

WVhat I do claim as my invention,- and which I desire to secure by Letters Patent, is

Arranging the main steam-pipeimmediatel y beneath the said kettles, in a position inclining upward from the boiler, with vertical branch tubes leading into the same from the lower parts of the jackets, through which the steam 'isadmitted to the spaces between the jackets and kettles, and by which the condensed steam is suffered to fiow back into the boiler by its, gravity, thereby preventing any evaporation of the steam by keeping it constantly inclosed from the atmosphere.

XVILLIAM GRAHAM.

WVitnesses:

. F. CHAIX,'

F. T. TATRAUOHE.

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