US36096A - Improved portable apparatus for manufacturing illuminating-gas - Google Patents

Description

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PHOTWLITMDGRAMER, WASHINGTON D NL Ferias,

l'ITEiD STATES GEORGE H. KITCHEN,

PATENT OFFICE.

0E NEw YORK, N. Y.

Specification forming part of Letters Patent No. 36,096, dated August 5, 1862.

To all whom it may concern:

Be it known that I, GEORGE H. KITCHEN, of the city and State of New York, have invented, made, and applied to use a certain new and useful Improvement -in Portable Gas Apparatus; and I do hereby declare the following to be a full, clear, and exact description of my said invention, reference being had to the annexed drawings, making part of this specilication, wherein- Figure l is a vertical section lengthwise of the retort, and Fig. 2 is a cross-section.

Similar marks of reference denote the same parts.

Portable gas apparatus has heretofore been made with a retort in a furnace, and the gas itself, formed from oil, allowed to pass into said retort and go offin the gaseous form to a gasometer.

The nature of my said invention consists in the employment of a peculiar character of tile beneath the retort to equalize the action ofthe fire on the same and prevent theretort burning, and at the same time render said retort much more efficient in consequence of the uniformity of the heat; and in order to prevent heat from the-furnace passing out into the cellar, where such portable gas apparatus is usually placed, I employ a double casing to the furnace,which tends to retain the heat, and,in connection with the aforesaid tile, to equalize the heat in its action upon the retort.

In the drawings, a is a furnace formed by a double casing of sheet metal, as shown, leaving a space for a stratum of air,- ashes, plaster,

or other noneonducting material,to retain the heat in the furnace as much as possible. This furnace is also lined with soapstone or rebrick at b.

c is the grate, and d is the ash-draw.

e is a. retort of any convenient construction or size, and below said retort is my improved tile f, of hre-brick, soapstone,or similar matef rial. It is well known that fires burn the most intensely in the center. I therefore make my said tile f thickest in the middle and thinner toward the ends, so -that the temperature of the retort throughout shall be as nearly uniform as possible, and the non-conducting space around the furnace conspires to aid in equal- The oil from which the gas in this portableapparatus is made is to be supplied by a suitable cock to the siphon-pipe k, and the gas conveyed away, as at Z, to asuitable reservoir.

The heavy coaloi1s,which are now the cheapest for making gas from, contain an excess of carbon and are apt to smoke. I therefore ll my retort with stri ps of wood, packed in closely; and I find that the gas passing among said strips of wood in the presence of the heat is so purified and changed in its nature,by combining with the gases driven off lfrom said wood, that smoking is prevented. These strips of wood will last for several days, and when removed they are found to be a hard quality of charcoal. i

What I claim, and desire to secure by Letters Patent, is-

1. The tile f, formed thicker in the middle .than at the ends and applied in the manner specified to equalize the heat upon the retort, as set forth.

2. In combination with the said tile f, a double casing, a, to aid in retaining heat and equalizing the action thereof onthe retort, as.

specified.

In witness whereof I have hereunto set my signature this 2d day of June, 1862.

GEO. H. KITCHEN.

'Witnessesz vLEMUEL W. SEERELL, THos. GEO. HAROLD.

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